CN106184871A - Photoelectric detector efficiency detection method and device - Google Patents
Photoelectric detector efficiency detection method and device Download PDFInfo
- Publication number
- CN106184871A CN106184871A CN201610629575.9A CN201610629575A CN106184871A CN 106184871 A CN106184871 A CN 106184871A CN 201610629575 A CN201610629575 A CN 201610629575A CN 106184871 A CN106184871 A CN 106184871A
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- trachea
- photoelectric detector
- efficiency detection
- packer
- controller
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Classifications
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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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The open a kind of photoelectric detector efficiency detection method of the present invention and device, relate to Nicotiana tabacum L. automation control area.Wherein efficiency detection controller 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 drives trachea switching device to enter conducting state, the compressed gas that first trachea ejects makes label paper side flap bend downwards, the compressed gas that second trachea ejects makes label paper opposite side flap bend downwards, after preset time delay, efficiency detection controller detects the first photoelectric detector and the state of the second photoelectric detector, if the first photoelectric detector or the second photoelectric detector output fault indication signal, then efficiency detection controller cuts off the circuit between packer controller and packer, to make packer shut down.The present invention can find photoelectric detector fault in time such that it is able to products quality guarantee, safeguards consumer's interests.
Description
Technical field
The present invention relates to Nicotiana tabacum L. automation control area, particularly to a kind of photoelectric detector efficiency detection method and dress
Put.
Background technology
In order to more clearly present invention is described, first below existing packer is introduced.
1, absolute value shaft encoder principles and methods
As depicted in figs. 1 and 2, rotating shaft 2 per revolution of absolute value shaft encoder 1, signal end 3 uniformly exports n number
Word signal, each digital signal is determined by the model of shaft encoder with the position one_to_one corresponding of rotating shaft 2, n, and n is the biggest, shaft encoder
Precision the highest.
As it is shown on figure 3, the final drive shaft 4 of packer is connected with the rotating shaft 2 of absolute value shaft encoder 1, packer is often transported
One machine cycle of row, producing a cigarette, during this, final drive shaft 4 drives rotating shaft 2 to rotate a circle, then shaft encoder 1 is every
Individual digital signal is with each run location one_to_one corresponding of packer, and then shaft encoder 1 can be the detection offer position of machine
Signal.
2, barrel packaging process is introduced
As shown in Figure 4 and Figure 5, packer often runs a machine cycle, produces a cigarette, and its packaging process is:
Label paper 5 runs downwards in transfer passage 8, and in downward running, left flap 6 and Right flap 7 are coated with
Upper glue.When label paper 5 runs the bottom to decline passway 8, the tobacco bale 9 arranged converges with label paper 5, then along arrow
Direction shown in 10 is run, and in running, left flap 6 and Right flap 7 are in a series of mechanical part (not shown)s
Under effect, will bend downwards, ultimately form complete plume 11.
3, barrel label paper side flap Cleaning 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 deployed condition, when bending downwards, this position there is side flap detector for detecting flap 6 and 7 be
No existence.
This 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, this photoelectric detector detection head on have transmitting terminal and
Receiving terminal, transmitting terminal sends 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
Signal end output 24V d. c. voltage signal, otherwise the light quantity received when receiving terminal is more than the threshold value of detector inner setting
Time, the signal end of detector does not export 24V d. c. voltage signal.
Left side photoelectric detector 13 is positioned at above left flap 6, and reflector 14 is positioned at the underface of detector 13, detector
13 send downwards detection light beam 17.
In the presence of left flap 6, detection light beam 17 is irradiated on flap 6, and segment beam upwards reflects and by detector
The receiving terminal of 13 receives, and flap 6 surface is rough, and the reflection now produced is diffuse-reflectance, reflectance (connecing of detector
Receive light quantity and launch the ratio of light quantity) the least, the most upwards reflection the light quantity that received by detector 13 are the least, and this light quantity is less than inspection
Surveying the threshold value of device 13 inner setting, then the signal end of detector will output 24V d. c. voltage signal.
Otherwise, when left flap 6 not in the presence of, detection light beam 17 be emitted onto on reflector 14, light beam 17 upwards reflects
And received by the receiving terminal of detector 13, reflector 14 surface is smooth, and the reflection now produced is direct reflection, reflectance
Relatively big, the most upwards reflection the light quantity that received by detector 13 are relatively big, this light quantity more than the threshold value of detector 13 inner setting,
Then the signal end of detector will not export 24V d. c. voltage signal.
Such as, light quantity launched by detector 13 is 100, and inner setting threshold value is 50, and the reflectance of flap 6 is 20%, reflective
The reflectance of plate 14 is 70%.When detector 13 detects flap 6, the light quantity that detector 13 receives is 20 (100 × 20%)
＜ 50, the most now detector 13 signal end output 24V d. c. voltage signal；When detector 13 is not detected by flap 6, i.e. examine
When light-metering bundle 17 is irradiated to reflector 14, the light quantity received by detector 13 is 70 (100 × 70%) ＞ 50, the most now detects
Device 13 signal end does not export 24V d. c. voltage signal.
The signal then passing through detector 13 just may determine that whether flap 6 exists, when the output signal of detector 13 is
During 24V DC voltage, it is judged that flap 6 exists, otherwise when detector 13 does not export 24V d. c. voltage signal, it is judged that flap 6 is not
Exist.
Right side photoelectric detector 15 is positioned at above side, right side flap 7, and reflector 16 is positioned at the underface of detector 15, detection
Device 15 sends downwards detection light beam 18.
The Cleaning Principle of Right flap 7 is also identical: when the output signal of detector 15 is 24V DC voltage, sentence
The wing 7 that wrecks exists, otherwise when detector 15 does not export 24V d. c. voltage signal, it is judged that flap 7 does not exists.
As it is shown in fig. 7, the signal quilt of left side photoelectric detector 13, right side photoelectric detector 15 and absolute value shaft encoder 1
Being input in packer controller 101, packer controller 101 outfan is connected to the Enable Pin of converter 102, converter
102 control mair motor 103, and mair motor 103 controls packer 104.
When packer controller 101 detects fault-free (such as: detect that label paper side flap 6 and 7 exists), control
Device 101 send enable signal (24V d. c. voltage signal) to converter 102, converter 102 receive enable signal after, drive
Mair motor 103, mair motor 103 drives packer 104 to run.
When controller 101 detects faulty (such as: photoelectric detector 13 or 15 detects that side flap is lost), will stop
Only sending to converter 102 and enable signal, then converter 102 makes mair motor 103 out of service, and packer 104 is shut down.
4, label paper side flap detection device defect
Have two kinds of faults that side flap detector can be caused to lose efficacy:
(1) detection light beam 17 or 18 decay that photoelectric detector 13 or 15 sends
Such as, when detector 13 is normal, launching light quantity is 100, and inner setting threshold value is 50, and the reflectance of flap 6 is
20%, the reflectance of reflector 14 is 70%, and the output signal now by detector 13 can determine whether out whether flap 6 exists:
When the output signal of detector 13 is 24V DC voltage, it is judged that flap 6 exists；Otherwise when detector 13 does not export 24V direct current
During voltage signal, it is judged that flap 6 does not exists.
When detector 13 is aging, it is launched light quantity and decays to 50 from 100, and the reflectance of flap 6 and reflector 14 is constant, for
20% and 70%.Then when detector 13 detects flap 6, the light quantity that detector 13 receives is 10 (50 × 20%) ＜ 50, in
It it is now detector 13 signal end output 24V d. c. voltage signal；When detector 13 is not detected by flap 6, i.e. detect light beam
17 when being irradiated to reflector 14, and the light quantity received by detector 13 is 35 (50 × 70%) ＜ 50, and the most now detector 13 is believed
Number end or output 24V d. c. voltage signal, now detector 13 lost efficacy, it is impossible to detect the situation that flap 6 lacks.
(2) reflector 14 or 16 reflecting power sternly decays
Such as, when detector 13 is normal, launching light quantity is 100, and inner setting threshold value is 50, and the reflectance of flap 6 is
20%, the reflectance of reflector 14 is 70%, and the output signal now by detector 13 can determine whether out whether flap 6 is deposited
When the output signal of detector 13 is 24V DC voltage, it is judged that flap 6 exists, otherwise when detector 13 does not exports
During 24V d. c. voltage signal, it is judged that flap 6 does not exists.
Packer longtime running, reflector 14 can gradually add up a large amount of dust, and reflecting power decays, its reflectance from
70% decays to 30%, and the reflectance of flap 6 is constant, is still 20%, and the light quantity that detector 13 is launched is the most constant, is 100.Then
When detector 13 detects flap 6, the light quantity that detector 13 receives is 20 (100 × 20%) ＜ 50, the most now detector
13 signal end output 24V d. c. voltage signals；When detector 13 is not detected by flap 6, i.e. detection light beam 17 is irradiated to reflective
During plate 14, the light quantity that detector 13 receives is 30 (100 × 30%) ＜ 50, and the most now detector 13 signal end still exports
24V d. c. voltage signal, now detector 13 lost efficacy, it is impossible to detect the situation that flap 6 lacks.
When flank detection was lost efficacy, the plume without flank can be caused to be detected, enter in downstream machine, the most laggard
Enter in consumer's hands, thus great quality accident can be produced.
Summary of the invention
The embodiment of the present invention provides a kind of photoelectric detector efficiency detection method and device, and the compression blown out by utilization is empty
Gas makes two flanks of label paper bend downwards, the situation of simulation flank disappearance, then detects the output of two photoelectric detectors
Signal is the most correct, thus can determine whether out that detector is the most working properly.Thus can products quality guarantee, safeguard consumer profit
Benefit.
According to an aspect of the present invention, it is provided that a kind of photoelectric detector efficiency detection method, including:
Efficiency detection controller 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 drives trachea switching device to enter and leads
Logical state, the compressed gas that the first trachea ejects makes label paper side flap bend downwards, the compression that the second trachea ejects
Gas makes label paper opposite side flap bend downwards；
After preset time delay, efficiency detection controller detects the first photoelectric detector and the state of the second photoelectric detector,
Wherein the first photoelectric detector exports fault indication signal when label paper side flap being detected, and the second photoelectric detector is in inspection
Output fault indication signal when measuring label paper opposite side flap；
If the first photoelectric detector or the second photoelectric detector output fault indication signal, then efficiency detection controller cuts off
Circuit between packer controller and packer, in order to make packer shut down.
Alternatively, after efficiency detection controller drives trachea switching device to enter opening, after delay scheduled time T1,
Driving trachea switching device to enter closed mode, make the first trachea and the second trachea stop jet compression gas, wherein T1 is more than
Described preset time delay.
Alternatively, trachea switching device is electromagnetic valve.
Alternatively, the step that efficiency detection controller drives trachea switching device to enter conducting state includes:
Efficiency detection controller is the coil power supply of electromagnetic valve, makes electromagnetic valve enter conducting state；
The step that efficiency detection controller drives trachea switching device to enter closed mode includes:
Efficiency detection controller stops the coil power supply for electromagnetic valve, makes electromagnetic valve enter closed mode.
Alternatively, the step of the circuit between efficiency detection controller cut-out packer controller and packer includes:
Efficiency detection controller is that relay coil is powered so that be arranged on circuit between packer controller and packer
On relay normally-closed contact disconnect.
Alternatively, efficiency detection controller shows the first photoelectric detector and the inspection of the second photoelectric detector by display
Survey state.
Alternatively, it is arranged on efficiency by Guan Bi and detects the normal open switch in controller supply line, so that efficiency detection
Controller obtains electric.
According to a further aspect in the invention, it is provided that a kind of photoelectric detector energy-efficiency detection device, control including efficiency detection
Device, trachea switching device, the outlet side of trachea switching device connects has the first trachea and the second trachea, wherein:
Efficiency detection controller, for electric after, the output valve of absolute value shaft encoder is detected, if absolute value
The output valve of shaft encoder is predetermined value, drives trachea switching device to enter conducting state；After preset time delay, detect the first light
Photodetector and the state of the second photoelectric detector, wherein the first photoelectric detector exports when label paper side flap being detected
Fault indication signal, the second photoelectric detector exports fault indication signal when label paper opposite side flap being detected；If first
Photoelectric detector or the second photoelectric detector output fault indication signal, then cut off the line between packer controller and packer
Road, in order to make packer shut down；
Trachea switching device is for after entering conducting state, and the compressed gas that the first trachea ejects makes label paper side
Flap bends downwards, and the compressed gas that the second trachea ejects makes label paper opposite side flap bend downwards.
Alternatively, efficiency detection controller is additionally operable to, after driving trachea switching device to enter opening, postpone predetermined
After time T1, drive trachea switching device to enter closed mode, make the first trachea and the second trachea stop jet compression gas, its
Middle T1 is more than described preset time delay.
Alternatively, trachea switching device is electromagnetic valve.
Alternatively, efficiency detection controller is specially the coil power supply of electromagnetic valve, makes electromagnetic valve enter conducting state；Also use
In stopping the coil power supply for electromagnetic valve, electromagnetic valve is made to enter closed mode.
Alternatively, said apparatus also includes relay, wherein:
It is relay line that efficiency detection controller is additionally operable to when the circuit cut off between packer controller and packer
Circle power supply so that the relay normally-closed contact being arranged between packer controller and packer on circuit disconnects.
Alternatively, said apparatus also includes display, wherein:
Display is for display the first photoelectric detector and the detection state of the second photoelectric detector.
Alternatively, said apparatus also includes that being arranged on efficiency detects the normal open switch in controller supply line, wherein:
Normal open switch, for after Guan Bi, makes efficiency detection controller obtain electric.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and
Advantage will be made apparent from.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other accompanying drawing according to these accompanying 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 packer.
Fig. 4 is that barrel label paper launches schematic diagram.
Fig. 5 is barrel flow package schematic diagram.
Fig. 6 is photoelectric detector position view.
Fig. 7 is that flank detects device circuit schematic diagram.
Fig. 8 is trachea scheme of installation of the present invention.
Fig. 9 is the trachea of the present invention schematic diagram that label paper side flap bends downwards when giving vent to anger.
Figure 10 is the circuit diagram of energy-efficiency detection device of the present invention.
Figure 11 is the schematic diagram of efficiency of the present invention one embodiment of detection.
Figure 12 is efficiency testing process schematic diagram of the present invention.
Figure 13 is that efficiency of the present invention detects time diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Below
Description only actually at least one exemplary embodiment is illustrative, and never conduct to the present invention and application thereof or makes
Any restriction.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.
Unless specifically stated otherwise, the parts illustrated the most in these embodiments and the table positioned opposite, digital of step
Reach formula and numerical value does not limits the scope of the invention.
Simultaneously, it should be appreciated that for the ease of describing, the size of the various piece shown in accompanying drawing is not according to reality
Proportionate relationship draw.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of when, described technology, method and apparatus should be considered to authorize a part for description.
It is shown here that any occurrence should be construed as merely exemplary with in all examples discussed, and not
It is as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it is further discussed in accompanying drawing subsequently.
As shown in Figure 8 and Figure 9, photoelectric detector energy-efficiency detection device arranges trachea switching device, alternatively, this gas
Pipe switching device can be electromagnetic valve 19.Wherein the outlet side 20 of electromagnetic valve 19 connects the first trachea 21 and the second trachea 22.Example
As, the first trachea 21 is arranged at the inner side of left side photoelectric detector 13, and its outlet side is directed at downwards left flap 6；Second trachea
22 inner sides being arranged at right side photoelectric detector 15, its outlet side is directed at downwards the side right folding wing 7.
As shown in Figure 10, photoelectric detector energy-efficiency detection device is additionally provided with efficiency detection controller.Alternatively, this efficiency
Detection controller can be PLC (Programmable Logic Controller) 23.Additionally, by the left side photoelectric detector 13 in existing packer, right side
The signal of photoelectric detector 15 and absolute value shaft encoder 1 output inputs to PLC 23.
Wherein, PLC 23 electric after, the output valve of absolute value shaft encoder 1 is detected, if absolute value axle coding
The output valve of device is predetermined value A, then drive electromagnetic valve 19 to enter conducting state.
Wherein, when machine runs, when the first trachea 21 and the second trachea 22 are directed at left flap 6 and right side separately down
During the centre position of flap 7, the output signal of absolute value shaft encoder is A.
Electromagnetic valve 19 is after entering conducting state, and the compressed gas that the first trachea 21 ejects makes label paper left flap 6
Bending, the compressed gas that the second trachea 22 ejects makes label paper Right flap 7 bend downwards.
PLC 23 is after driving electromagnetic valve 19 to enter conducting state, after preset time delay T2, and Photoelectric Detection on the left of detection
Device 13 and the state of right side photoelectric detector 15, wherein left side photoelectric detector 13 is defeated when label paper left flap 6 being detected
Be out of order indication signal, and right side photoelectric detector 15 exports fault indication signal when label paper Right flap 7 being detected.If light
Photodetector 13 or photoelectric detector 15 export fault indication signal, then PLC 23 cuts off packer controller 101 and controls bag
Circuit between the converter 102 of installation 104, in order to make packer 104 shut down.
Alternatively, PLC 23 is additionally operable to, after driving electromagnetic valve 19 to enter opening, after delay scheduled time T1, drive
Electromagnetic valve 19 enters closed mode, makes the first trachea 21 and the second trachea 22 stop jet compression 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 electromagnetic valve 19 the electric time be T2 time, one surely
Enough making both sides flap bend downwards, the detection light beam of two photoelectric detectors is irradiated on the reflector of correspondence.
Alternatively, PLC 23 is by powering for the coil 29 in electromagnetic valve 19, in order to make electromagnetic valve 19 enter conducting state；
If PLC 23 stops powering, so that electromagnetic valve 19 enters closed mode for the coil 29 of electromagnetic valve 19.Wherein, electromagnetic valve coil
One end of 29 is connected to the outfan of PLC 23, and the other end is connected in 0V DC voltage.
Alternatively, as shown in Figure 10, photoelectric detector energy-efficiency detection device is additionally provided with relay 26.Its repeat circuit line
One end of circle 27 is connected to the outfan of PLC 23, and the other end is connected to 0V DC voltage, and the normally-closed contact 28 of relay 26 sets
Put on the circuit between packer controller 101 and converter 102.
Wherein, PLC 23 is relay coil 27 when the circuit cut off between packer controller 101 and converter 102
Power supply, so that the relay normally-closed contact 28 being arranged between packer controller 101 and converter 102 on circuit breaks
Open, thus control packer and quit work.
Alternatively, as shown in Figure 10, photoelectric detector energy-efficiency detection device also includes display 30, wherein display 30
For showing the detection state of photoelectric detector 13 and photoelectric detector 15.
Such as, PLC 23 electric after, if detecting when the output signal of absolute value shaft encoder is A, now PLC 23
Electromagnetic valve coil 29 is made to obtain electric, duration T 1.Must establish by cable the beginning from electromagnetic valve coil 29, after time delay T2:
1) if the output of left side photoelectric detector 13 no signal, then PLC 23 does not drive relay 26, and PLC 23 leads to simultaneously
Cross display 30 and show " left side photoelectric detector is normal " information.
2) if the output of right side photoelectric detector 15 no signal, then PLC 23 does not drive relay 26, and PLC 23 leads to simultaneously
Cross display 30 and show " right side photoelectric detector is normal " information.
3) if left side photoelectric detector 13 exports 24V d. c. voltage signal, then PLC 23 drives relay 26, makes machine
Out of service, PLC 23 shows " inefficacy of left side photoelectric detector " information by display 30 simultaneously.
4) if right side photoelectric detector 15 exports 24V d. c. voltage signal, then PLC 23 drives relay 26, makes machine
Out of service, PLC 23 shows " inefficacy of right side photoelectric detector " information by display 30 simultaneously.
Alternatively, as shown in Figure 10, the button 24 being additionally provided with normally opened contact 25 in controller supply line is detected in efficiency,
During wherein one end of normally opened contact 25 is connected to 24V DC voltage, the other end is connected to PLC 23, can be triggered by this button 24
Efficiency detects.Wherein, normally opened contact 25, after Guan Bi, makes PLC 23 obtain electric.
Figure 11 is the schematic diagram of energy-efficiency detection device of the present invention one embodiment of detection.Wherein:
Step 1101, efficiency detection controller electric after, the output valve of absolute value shaft encoder is detected.
Wherein, efficiency detection controller can be PLC.Efficiency can be arranged on by Guan Bi to detect in controller supply line
It is provided with the button of normally opened contact, so that efficiency detection controller obtains electric.
Step 1102, if the output valve of absolute value shaft encoder is predetermined value A, efficiency detection controller drives trachea switch
Device enters conducting state, and the compressed gas that the first trachea ejects makes label paper side flap bend downwards, the second trachea spray
The compressed gas of injection makes label paper opposite side flap bend downwards.
Alternatively, trachea switching device is electromagnetic valve.
Such as, efficiency detection controller, by the coil power supply for electromagnetic valve, makes electromagnetic valve enter conducting state；Efficiency is examined
Survey controller and stop the coil power supply for electromagnetic valve, make electromagnetic valve enter closed mode.
Step 1103, after preset time delay T2, efficiency detection controller detects the first photoelectric detector and the second smooth electric-examination
Survey the state of device.
Wherein the first photoelectric detector exports fault indication signal, the second smooth electric-examination when label paper side flap being detected
Survey device and export fault indication signal when label paper opposite side flap being detected.
Step 1104, if the first photoelectric detector or the second photoelectric detector output fault indication signal, then efficiency detection
Controller cuts off the circuit between packer controller and packer, in order to make packer shut down.
Alternatively, efficiency detection controller is by powering for relay coil so that be arranged on packer controller and bag
Between installation, the relay normally-closed contact on circuit disconnects.
Alternatively, after efficiency detection controller drives trachea switching device to enter opening, after delay scheduled time T1,
Driving trachea switching device to enter closed mode, make the first trachea and the second trachea stop jet compression gas, wherein T1 is more than
Preset time delay T2.
Alternatively, efficiency detection controller shows the first photoelectric detector and the inspection of the second photoelectric detector by display
Survey state.
Below in conjunction with Figure 12 and Figure 13, the present invention is specifically described.
As shown in figure 12, in step 1201, PLC 23 detects whether button 24 is pressed.If detecting, button 24 is pressed
Under, then enter step 1202 and perform efficiency detection.
In step 1202, PLC 23 detects whether the output signal of absolute value shaft encoder 1 is predetermined value A.Wherein when
When the signal of absolute value shaft encoder 1 is A, show that now the first trachea 21 and the second trachea 22 are directed at 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, then perform step 1203.
In step 1203, it is electric that PLC 23 makes electromagnetic valve coil 29 obtain, duration T 1, and electromagnetic valve 19 is by the first trachea
21 and second trachea 22 eject compressed air and make both sides flap 6 and 7 bend downwards, the detection light beam 17 of two photoelectric detectors
It is irradiated on corresponding reflectors 14 and 16 with 18.Perform step 1204 and step 1207 the most respectively.
In step 1204, must establish by cable the beginning from electromagnetic valve coil 29, after time delay T2, on the left of detection, whether photoelectric detector 13
Signal is had to export.
If left side photoelectric detector 13 no signal exports, then show that left side photoelectric detector 13 is working properly, then perform
Step 1205；If left side photoelectric detector 13 exports 24V d. c. voltage signal, show that left side photoelectric detector 13 lost efficacy, then
Perform step 1206.
In step 1205, PLC23 do not drive relay 26, i.e. relay coil 27 must not electricity, its normally-closed contact 28 closes
Closing, packer controller keeps connecting with converter, and machine continues to run under the control of packer controller, PLC23 simultaneously
" 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, and its normally-closed contact 28 disconnects, packer
Controller is delivered to the enable signal of converter and is cut off, and machine is out of service, and PLC23 shows " left side by display 30 simultaneously
Photoelectric detector lost efficacy " information.
In step 1207, must establish by cable the beginning from electromagnetic valve coil 29, after time delay T2, on the right side of detection, whether photoelectric detector 15
Signal is had to export.
If right side photoelectric detector 15 no signal exports, then show that right side photoelectric detector 15 is working properly, then perform
Step 1208；If right side photoelectric detector 15 exports 24V d. c. voltage signal, show that right side photoelectric detector 15 lost efficacy, then
Perform step 1209.
In step 1208, PLC23 do not drive relay 26, i.e. relay coil 27 must not electricity, its normally-closed contact 28 closes
Closing, packer controller keeps connecting with converter, and machine continues to run under the control of packer controller, PLC23 simultaneously
" 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, and its normally-closed contact 28 disconnects, packer
Controller is delivered to the enable signal of converter and is cut off, and machine is out of service, and PLC 23 shows " right side by display 30 simultaneously
Photoelectric detector lost efficacy " 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 and trigger signal accordingly.
In figure (b), the output signal of absolute value shaft encoder 1, after detecting that button 24 is pressed, is entered by PLC 23
Row detection.When the output valve of absolute value shaft encoder 1 is A, show the outlet positive alignment label paper both sides of now two tracheas
The centre position of flap.
In figure (c), PLC 23, when detecting that the output valve of absolute value shaft encoder 1 is A, drives electromagnetic valve 19, holds
The continuous time is T1, and the compressed air that two tracheas eject makes label paper both sides flap bend downwards, two photoelectric detectors
Detection light beam is irradiated on the reflector of correspondence.
In figure (d), must establish by cable the beginning from electromagnetic valve 19, after time delay T2, if left side (or right side) photoelectric detector no signal
Output, then show that left side (or right side) photoelectric detector is working properly.
In figure (e), owing to left side (or right side) photoelectric detector is working properly, therefore PLC23 does not drive relay 26,
I.e. relay 26 must not be electric, and packer controller keeps connecting with converter, and machine continues under the control of packer controller
Running, PLC 23 shows " left side (or right side) photoelectric detector is normal " information by display 30 simultaneously.
In figure (f), must establish by cable the beginning from electromagnetic valve 19, after time delay T2, if the output of left side (or right side) photoelectric detector
24VDC voltage signal, then show that left side (or right side) photoelectric detector lost efficacy.
In figure (g), owing to left side (or right side) photoelectric detector lost efficacy, therefore PLC23 drives relay 26, i.e. relay
Device coil 27 obtains electric, and its normally-closed contact end is opened, and packer controller is delivered to the enable signal of converter and is cut off, and machine stops fortune
OK, PLC 23 shows " inefficacy of left side (or right side) photoelectric detector " information by display 30 simultaneously.
By implementing the present invention, detector failures can be found in time, thus can products quality guarantee, safeguard consumer's profit
Benefit.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can pass through hardware
Completing, it is also possible to instruct relevant hardware by program and complete, described 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 is given for example with for the sake of describing, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Select and retouch
Stating embodiment is in order to the principle of the present invention and actual application are more preferably described, and enables those of ordinary skill in the art to manage
Solve the present invention thus design the various embodiments with various amendments being suitable to special-purpose.
Claims (14)
1. a photoelectric detector efficiency detection method, it is characterised in that including:
Efficiency detection controller 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 drives trachea switching device to enter conducting shape
State, the compressed gas that the first trachea ejects makes label paper side flap bend downwards, the compressed gas that the second trachea ejects
Label paper opposite side flap is made to bend downwards；
After preset time delay, efficiency detection controller detects the first photoelectric detector and the state of the second photoelectric detector, wherein
First photoelectric detector exports fault indication signal when label paper side flap being detected, and the second photoelectric detector is detecting
Fault indication signal is exported during label paper opposite side flap；
If the first photoelectric detector or the second photoelectric detector output fault indication signal, then efficiency detection controller cuts off packaging
Circuit between machine controller and packer, in order to make packer shut down.
Method the most according to claim 1, it is characterised in that also include:
After efficiency detection controller drives trachea switching device to enter opening, after delay scheduled time T1, trachea is driven to open
Closing device and enter closed mode, make the first trachea and the second trachea stop jet compression gas, wherein T1 is more than described pre-timing
Prolong.
Method the most according to claim 1 and 2, it is characterised in that
Trachea switching device is electromagnetic valve.
Method the most according to claim 3, it is characterised in that
The step that efficiency detection controller drives trachea switching device to enter conducting state includes:
Efficiency detection controller is the coil power supply of electromagnetic valve, makes electromagnetic valve enter conducting state；
The step that efficiency detection controller drives trachea switching device to enter closed mode includes:
Efficiency detection controller stops the coil power supply for electromagnetic valve, makes electromagnetic valve enter closed mode.
Method the most according to claim 1 and 2, it is characterised in that also include:
Efficiency detection controller cuts off the step of the circuit between packer controller and packer and includes:
Efficiency detection controller is that relay coil is powered so that be arranged between packer controller and packer on circuit
Relay normally-closed contact disconnects.
Method the most according to claim 1 and 2, it is characterised in that also include:
Efficiency detection controller shows the detection state of the first photoelectric detector and the second photoelectric detector by display.
Method the most according to claim 1 and 2, it is characterised in that also include:
It is arranged on efficiency by Guan Bi and detects the normal open switch in controller supply line, so that efficiency detection controller obtains electric.
8. a photoelectric detector energy-efficiency detection device, it is characterised in that include that efficiency detects controller, trachea switching device,
The outlet side of trachea switching device connects has the first trachea and the second trachea, wherein:
Efficiency detection controller, for electric after, the output valve of absolute value shaft encoder is detected, if absolute value axle compile
The output valve of code device is predetermined value, drives trachea switching device to enter conducting state；After preset time delay, detect the first smooth electric-examination
Surveying device and the state of the second photoelectric detector, wherein the first photoelectric detector exports fault when label paper side flap being detected
Indication signal, the second photoelectric detector exports fault indication signal when label paper opposite side flap being detected；If the first photoelectricity
Detector or the second photoelectric detector output fault indication signal, then cut off the circuit between packer controller and packer,
To make packer shut down；
Trachea switching device is for after entering conducting state, and the compressed gas that the first trachea ejects makes label paper side flap
Bending downwards, the compressed gas that the second trachea ejects makes label paper opposite side flap bend downwards.
Device the most according to claim 8, it is characterised in that
Efficiency detection controller is additionally operable to, after driving trachea switching device to enter opening, after delay scheduled time T1, drive
Pipe switching device of taking offence enters closed mode, makes the first trachea and the second trachea stop jet compression gas, and wherein T1 is more than institute
State preset time delay.
Device the most according to claim 8 or claim 9, it is characterised in that
Trachea switching device is electromagnetic valve.
11. devices according to claim 10, it is characterised in that
Efficiency detection controller is specially the coil power supply of electromagnetic valve, makes electromagnetic valve enter conducting state；It is additionally operable to stop as electricity
The coil power supply of magnet valve, makes electromagnetic valve enter closed mode.
12. devices according to claim 8 or claim 9, it is characterised in that also include relay, wherein:
Efficiency detection controller is additionally operable to when the circuit cut off between packer controller and packer be that relay coil supplies
Electricity so that the relay normally-closed contact being arranged between packer controller and packer on circuit disconnects.
13. devices according to claim 8 or claim 9, it is characterised in that also include display, wherein:
Display is for display the first photoelectric detector and the detection state of the second photoelectric detector.
14. devices according to claim 8 or claim 9, it is characterised in that also include being arranged on efficiency detection controller supply lines
Normal open switch on road, wherein:
Normal open switch, for after Guan Bi, makes efficiency detection controller obtain electric.
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|---|---|
| CN106184871B (en) | 2018-10-23 |
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