CN202815177U - Stay rope switch detecting apparatus - Google Patents
Stay rope switch detecting apparatus Download PDFInfo
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- CN202815177U CN202815177U CN 201220406058 CN201220406058U CN202815177U CN 202815177 U CN202815177 U CN 202815177U CN 201220406058 CN201220406058 CN 201220406058 CN 201220406058 U CN201220406058 U CN 201220406058U CN 202815177 U CN202815177 U CN 202815177U
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Abstract
The utility model relates to the stay rope switch technology field, particularly to a stay rope switch detecting apparatus composed of a power supply unit, an isolating unit, a logic operation unit, a channel indication unit, a channel setting unit, and a drive unit, wherein the power supply unit is respectively connected with the isolating unit, the logic operation unit, the drive unit, the channel setting unit, and the channel indication unit; the isolating unit is respectively connected with the logic unit and the channel setting unit; and the logic operation unit is respectively connected with the channel indication unit, the channel setting unit, and the drive unit. The stay rope switch detecting apparatus of the utility model is capable of accurately discovering the specific position of the stay rope switch with faults and carrying out maintenance without affecting the normal operation of the production devices.
Description
Technical field
The application relates to the pull switch technical field, particularly a kind of pull switch pick-up unit.
Background technology
Adhesive tape conveyor as material transport equipment in automated production in occupation of critical role, wherein along the adhesive tape conveyor both sides pull switch being installed is a kind of important safety precautions.When the safety of the personnel adhesive tape conveyor near was on the hazard, the disjunction pull switch impelled equipment downtime rapidly, the protection personal security.When equipment or convey materials have abnormal conditions, rapid disjunction pull switch, the security of support equipment and the direct motion of production, Accident prevention enlarges.Pull switch is installed on the frame both sides of adhesive tape conveyor, and every interval 30 ~ 40 meter amperes fill one, successively it are linked with wire rope along the line.The wire rope of leaving behind in position, any point, frame both sides, the rotating handle that all can drive pull switch rotates, and the inner cam mechanism that connects with the rotation arbor withstands microswitch and makes its contact action and locked, only has that pull switch just can reset when depressing reseting handle.In electric control theory, usually adopt the normally closed contact of microswitch to be connected on successively in the loop, when any one pull switch action, all can cut off the operation of equipment.But there is following problem in existing pull switch: the one, when there is the situation of loose contact the contact of pull switch, be difficult to judge by visual inspection which is out of order, increased maintenance difficulty, be easy to judge that because detecting overlong time causes the consequence of producing pause.The 2nd, when production did not allow to pause, the maintenance personal taked interim compulsory method starting outfit usually, has cancelled the protective effect of pull switch, brings potential safety hazard to personnel and equipment.
The utility model content
The application's technical matters to be solved provides a kind of particular location that can detect accurately the pull switch that breaks down, and can be implemented in the pull switch pick-up unit that in the situation that does not affect the production equipment operation pull switch is keeped in repair.
For solving the problems of the technologies described above, the application provides a kind of pull switch pick-up unit, comprising: power supply unit, isolated location, arithmetic logic unit, passage indicating member, passage set unit and driver element.Described power supply unit is connected with described isolated location, arithmetic logic unit, driver element, passage set unit and the passage indicating member of being connected respectively.Described isolated location also respectively with described logical block be connected passage set unit and be connected.Described arithmetic logic unit also is connected with described passage indicating member, passage set unit and described driver element respectively.
Further, described power supply unit comprises: the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first diode VD1 and MAX610 chip.Described the first resistance R 1 is connected with 7 pin of described MAX610 chip by described the first capacitor C 1.1 pin of described MAX610 chip is connected with described isolated location.5 pin of described MAX610 chip are connected with power Vcc behind the pin short circuit with being connected.Connect GND behind 2 pin of described MAX610 chip and the 4 pin short circuits.Described the second resistance R 2 is connected in parallel with described the first capacitor C 1.8 pin of described MAX610 chip connect the positive pole of described the second capacitor C 2, the minus earth of described the second capacitor C 2.The positive pole of described the 3rd capacitor C 3 is connected with power Vcc, minus earth.The anode of described the first diode VD1 is connected with power Vcc, negative electrode be connected an end of the 3rd resistance R 3 and connect the other end ground connection of described the 3rd resistance R 3.
Further, described isolated location comprises: a MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler, the 8th MID400 optical coupler, first passage, second channel, third channel, four-way, Five-channel, the 6th passage, the 7th passage, the 8th passage, eight the 4th resistance R 4, eight the 5th resistance R 5 and eight the 4th capacitor C 4.7 pin of each the MID400 optical coupler in a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and the 8th MID400 optical coupler are connected with 5 pin by described the 4th capacitor C 4,5 pin of each MID400 optical coupler connect GND, 6 pin of each MID400 optical coupler are connected with power Vcc by described the 5th resistance R 5, and 8 pin of each MID400 optical coupler connect power Vcc.6 pin of a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and described the 8th MID400 optical coupler respectively with described arithmetic logic unit be connected passage set unit and be connected.A described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, in the 7th MID400 optical coupler and described the 8th MID400 optical coupler 1 pin of each MID400 optical coupler respectively by described the 4th resistance R 4 correspondingly with described first passage, second channel, third channel, four-way, Five-channel, the 6th passage, the 7th passage and described the 8th passage connect.3 pin of each MID chip are connected with 1 pin of described MAX610 chip in a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and described the 8th MID400 optical coupler.
Further, described arithmetic logic unit comprises: a 74HC14 chip, the 2nd 74HC14 chip, 74HC21 chip and 74HC08 chip.1 pin of a described 74HC14 chip is connected with 6 pin of a described MID400 optical coupler, 2 pin are connected with 10 pin of described 74HC21 chip, 3 pin are connected with 6 pin of described the 2nd MID400 optical coupler, 4 pin are connected with 9 pin of described 74HC21 chip, 5 pin are connected with 6 pin of the 3rd MID400 optical coupler, 6 pin are connected with 5 pin of described 74HC21 chip, 7 pin ground connection, 8 pin are connected with 12 pin of described 74HC21 chip, 9 pin are connected with 6 pin of described the 4th MID400 optical coupler, 14 pin connect power Vcc.1 pin of described the 2nd 74HC14 chip is connected with 6 pin of described the 5th MID400 optical coupler, 2 pin are connected with 4 pin of described 74HC21 chip, 3 pin are connected with 6 pin of described the 6th MID400 optical coupler, 4 pin are connected with 2 pin of described 74HC21 chip, 5 pin are connected with 6 pin of described the 7th MID400 optical coupler, 6 pin are connected with 1 pin of described 74HC21 chip, 7 pin ground connection, 8 pin are connected with 13 pin of described 74HC21 chip, 9 pin are connected with 6 pin of described the 8th MID400 optical coupler, 14 pin connect power Vcc; 1 pin, 3 pin, 5 pin and 9 pin of a described 74HC14 chip and described the 2nd 74HC14 chip also are connected with described passage set unit respectively.2 pin, 4 pin, 6 pin and 8 pin of a described 74HC14 chip and described the 2nd 74HC14 chip also are connected with described passage indicating member respectively.6 pin of described 74HC21 chip are connected with 2 pin of described 74HC08 chip, 7 pin ground connection, 8 pin are connected with 1 pin of described 74HC08 chip, 14 pin connect power Vcc.3 pin of described 74HC08 chip are connected with described driver element, 7 pin ground connection, 14 pin connect power Vcc.
Further, described passage indicating member comprises: the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12, the 13 resistance R 13, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the 5th diode VD5, the 6th diode VD6, the 7th diode VD7, the 8th diode VD8 and the 9th diode VD9.After linking together, one end of described the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12 and described the 13 resistance R 13 is connected with GND.The other end of described the 6th resistance R 6 is connected with the negative electrode of described the second diode VD2, and the anode of described the second diode VD2 is connected with 2 pin of a described 74HC14 chip.The other end of described the 7th resistance R 7 is connected with the negative electrode of described the 3rd diode VD3, and the anode of described the 3rd diode VD3 is connected with 4 pin of a described 74HC14 chip.The other end of described the 8th resistance R 8 is connected with the negative electrode of described the 4th diode VD4, and the anode of described the 4th diode VD4 is connected with 6 pin of a described 74HC14 chip.The other end of described the 9th resistance R 9 is connected with the negative electrode of described the 5th diode VD5, and the anode of described the 5th diode VD5 is connected with 8 pin of a described 74HC14 chip.The other end of described the tenth resistance R 10 is connected with the negative electrode of described the 6th diode VD6, and the anode of described the 6th diode VD6 is connected with 2 pin of described the 2nd 74HC14 chip; The other end of described the 11 resistance R 11 is connected with the negative electrode of described the 7th diode VD7, and the anode of described the 7th diode VD7 is connected with 4 pin of described the 2nd 74HC14 chip.The other end of described the 12 resistance R 2 is connected with the negative electrode of described the 8th diode VD8, and the anode of described the 8th diode VD8 is connected with 6 pin of described the 2nd 74HC14 chip.The other end of described the 13 resistance R 13 is connected with the negative electrode of described the 9th diode VD9, and the anode of described the 9th diode VD9 is connected with 8 pin of described the 2nd 74HC14 chip.
Further, described passage set unit comprises 8 road toggle switchs.An end of 1 tunnel, 2 tunnel, 3 tunnel, 4 tunnel, 5 tunnel, 6 tunnel, 7 tunnel and 8 tunnel of described 8 road toggle switchs is ground connection respectively.1 tunnel the other end of described 8 road toggle switchs is connected with 1 pin of a described 74HC14 chip.2 tunnel the other end of described 8 road toggle switchs is connected with 3 pin of a described 74HC14 chip.3 tunnel the other end of described 8 road toggle switchs is connected with 5 pin of a described 74HC14 chip.4 tunnel the other end of described 8 road toggle switchs is connected with 9 pin of a described 74HC14 chip.5 tunnel the other end of described 8 road toggle switchs is connected with 1 pin of described the 2nd 74HC14 chip.6 tunnel the other end of described 8 road toggle switchs is connected with 3 pin of described the 2nd 74HC14 chip.7 tunnel the other end of described 8 road toggle switchs is connected with 5 pin of described the 2nd 74HC14 chip.7 tunnel the other end of described 8 road toggle switchs is connected with 9 pin of described the 2nd 74HC14 chip.
Further, described driver element comprises: the 14 resistance R 14, the 15 resistance R 15, the tenth diode VD10, the 11 diode VD11, relay K and triode VT1.One end of described the 14 resistance R 14 is connected with 3 pin of 74HC08 chip, and the other end is connected with the base stage of described triode VT1.The collector of described triode VT1 is connected with an end of described the 15 resistance R 15, and the negative electrode of the other end of resistance R 15 and the tenth diode VD10 connects, and the anode of diode VD10 connects power Vcc.The collector of described triode VT1 and the anodic bonding of described the 11 diode VD11, the negative electrode of diode VD11 connects power Vcc.The collector of described triode VT1 also is connected with the coil of described relay K.The emitter of described triode VT1 connects GND.
Further, described the first diode VD1, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the 5th diode VD5, the 6th diode VD6, the 7th diode VD7, the 8th diode VD8, the 9th diode VD9 and the tenth diode VD10 all adopt light emitting diode.
The pull switch pick-up unit that the application provides can detect the particular location of the pull switch that breaks down accurately, can be implemented in the situation that does not affect the production equipment operation pull switch is keeped in repair.
Description of drawings
The pull switch pick-up unit circuit theory diagrams that Fig. 1 provides for the embodiment of the present application.
Embodiment
Referring to Fig. 1, a kind of pull switch pick-up unit that the embodiment of the present application provides comprises power supply unit 1, isolated location 2, arithmetic logic unit 3, passage indicating member 4, passage set unit 5 and driver element 6.Power supply unit 1 is connected with isolated location 2, arithmetic logic unit 3, driver element 6, passage set unit 5 and the passage indicating member 4 of being connected respectively.Isolated location 2 also is connected with passage set unit with arithmetic logic unit 3 respectively and is connected.Arithmetic logic unit 3 also is connected with passage indicating member 4, passage set unit 5 and driver element 6 respectively.
Referring to Fig. 1, power supply unit 1 comprises: the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first diode VD1 and MAX610 chip 101.The L end of external communication 220V power supply is connected with 7 pin of MAX610 chip 101 by the first resistance R 1 series connection the first capacitor C 1.The N end of external communication 220V power supply is connected with 1 pin of MAX610 chip 101, and the N end also is connected with isolated location 2 simultaneously.5 pin of MAX610 chip 101 and backward other unit of 6 pin short circuits (comprising isolated location 2, arithmetic logic unit 3, passage indicating member 4, passage set unit 5 and driver element 7) provide+the 5V power Vcc (actual linking together answered in the place that indicates Vcc in all accompanying drawings).2 pin of MAX610 chip 101 and backward other unit of 4 pin short circuits (comprising isolated location 2, arithmetic logic unit 3, passage indicating member 4, passage set unit 5 and driver element 7) provide GND (actual linking together answered in the place that indicates GND in all accompanying drawings).The second resistance R 2 and the first capacitor C 1 are connected in parallel.8 pin of MAX610 chip 101 connect the positive pole of the second capacitor C 2, the minus earth GND of the second capacitor C 2.The positive pole of the 3rd capacitor C 3 is connected with power Vcc, and negative pole connects GND.The anode of the first diode VD1 is connected with power Vcc, and an end of negative electrode and the 3rd resistance R 3 connects, another termination GND of the 3rd resistance R 3.
Referring to Fig. 1, isolated location 2 comprises: a MID400 optical coupler 201, the 2nd MID400 optical coupler 202, the 3rd MID400 optical coupler 203, the 4th MID400 optical coupler 204, the 5th MID400 optical coupler 205, the 6th MID400 optical coupler 206, the 7th MID400 optical coupler 207, the 8th MID400 optical coupler 208, first passage Channel1, second channel Channel2, third channel Channel3, four-way Channel4, Five-channel Channel5, the 6th channel C hannel6, the 7th channel C hannel7, the 8th channel C hannel8, eight the 4th resistance R 4, eight the 5th resistance R 5 and eight the 4th capacitor C 4.7 pin of each the MID400 optical coupler in the one MID400 optical coupler 201, the 2nd MID400 optical coupler 202, the 3rd MID400 optical coupler 203, the 4th MID400 optical coupler 204, the 5th MID400 optical coupler 205, the 6th MID400 optical coupler 206, the 7th MID400 optical coupler 207 and the 8th MID400 optical coupler 208 are connected with 5 pin by the 4th capacitor C 4, and 5 pin of each MID400 optical coupler connect GND.6 pin of each MID400 optical coupler are connected with power Vcc by described the 5th resistance R 5, and 8 pin of each MID400 optical coupler connect power Vcc.6 pin of the one MID400 optical coupler 201, the 2nd MID400 optical coupler 202, the 3rd MID400 optical coupler 203, the 4th MID400 optical coupler 204, the 5th MID400 optical coupler 205, the 6th MID400 optical coupler 206, the 7th MID400 optical coupler 207 and the 8th MID400 optical coupler 208 are connected with passage set unit with arithmetic logic unit 3 respectively and are connected.The one MID400 optical coupler 201, the 2nd MID400 optical coupler 202, the 3rd MID400 optical coupler 203, the 4th MID400 optical coupler 204, the 5th MID400 optical coupler 205, the 6th MID400 optical coupler 206, in the 7th MID400 optical coupler 207 and the 8th MID400 optical coupler 208 1 pin of each MID400 optical coupler respectively by the 4th resistance R 4 correspondingly with first passage Channel1, second channel Channel2, third channel Channel3, four-way Channel4, Five-channel Channel5, the 6th channel C hannel6, the 7th channel C hannel7 and the 8th channel C hannel8 connect (namely 8 MID400 optical couplers are connected with 8 the 4th resistance R 4 respectively, and 8 the 4th resistance R 4 are connected with 8 passages respectively).3 pin of each MID400 optical coupler are connected with the N end of external communication 220V power supply respectively in the one MID400 optical coupler 201, the 2nd MID400 optical coupler 202, the 3rd MID400 optical coupler 203, the 4th MID400 optical coupler 204, the 5th MID400 optical coupler 205, the 6th MID400 optical coupler 206, the 7th MID400 optical coupler 207 and the 8th MID400 optical coupler 208.
Referring to Fig. 1, arithmetic logic unit 3 comprises: a 74HC14 chip 301, the 2nd 74HC14 chip 302,74HC21 chip 303 and 74HC08 chip 304.1 pin of the one 74HC14 chip 301 is connected with 6 pin of a MID400 optical coupler 201,2 pin are connected with 10 pin of 74HC21 chip 303,3 pin are connected with 6 pin of the 2nd MID400 optical coupler 202,4 pin are connected with 9 pin of 74HC21 chip 303,5 pin are connected with 6 pin of the 3rd MID400 optical coupler 203,6 pin are connected with 5 pin of 74HC21 chip 303,7 pin ground connection, 8 pin are connected with 12 pin of 74HC21 chip 303,9 pin are connected with 6 pin of the 4th MID400 optical coupler 204,14 pin connect power Vcc.1 pin of the 2nd 74HC14 chip 302 is connected with 6 pin of the 5th MID400 optical coupler 205,2 pin are connected with 4 pin of 74HC21 chip 303,3 pin are connected with 6 pin of the 6th MID400 optical coupler 206,4 pin are connected with 2 pin of 74HC21 chip 303,5 pin are connected with 6 pin of the 7th MID400 optical coupler 207,6 pin are connected with 1 pin of 74HC21 chip 303,7 pin ground connection, 8 pin are connected with 13 pin of 74HC21 chip 303,9 pin are connected with 6 pin of the 8th MID400 optical coupler 208,14 pin connect power Vcc.1 pin of the one 74HC14 chip 301 and the 2nd 74HC14 chip 302,3 pin, 5 pin and 9 pin also are connected with passage set unit 5 respectively.2 pin of the one 74HC14 chip 301 and the 2nd 74HC14 chip 302,4 pin, 6 pin and 8 pin also are connected with passage indicating member 4 respectively.6 pin of 74HC21 chip 303 are connected with 2 pin of 74HC08 chip 304,7 pin ground connection, 8 pin are connected with 1 pin of 74HC08 chip 304,14 pin connect power Vcc.3 pin of 74HC08 chip 304 are connected with driver element 6,7 pin ground connection, 14 pin connect power Vcc.
Referring to Fig. 1, passage indicating member 4 comprises: the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12, the 13 resistance R 13, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the 5th diode VD5, the 6th diode VD6, the 7th diode VD7, the 8th diode VD8 and the 9th diode VD9.After linking together, one end of the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12 and the 13 resistance R 13 is connected with ground GND.The other end of the 6th resistance R 6 is connected with the negative electrode of the second diode VD2, and the anode of the second diode VD2 is connected with 2 pin of a 74HC14 chip 301.The other end of the 7th resistance R 7 is connected with the negative electrode of the 3rd diode VD3, and the anode of the 3rd diode VD3 is connected with 4 pin of a 74HC14 chip 301.The other end of the 8th resistance R 8 is connected with the negative electrode of the 4th diode VD4, and the anode of the 4th diode VD4 is connected with 6 pin of a 74HC14 chip 301.The other end of the 9th resistance R 9 is connected with the negative electrode of the 5th diode VD5, and the anode of the 5th diode VD5 is connected with 8 pin of a 74HC14 chip 301.The other end of the tenth resistance R 10 is connected with the negative electrode of the 6th diode VD6, and the anode of the 6th diode VD6 is connected with 2 pin of the 2nd 74HC14 chip 302.The other end of the 11 resistance R 11 is connected with the negative electrode of the 7th diode VD7, and the anode of the 7th diode VD7 is connected with 4 pin of the 2nd 74HC14 chip 302.The other end of the 12 resistance R 2 is connected with the negative electrode of the 8th diode VD8, and the anode of the 8th diode VD8 is connected with 6 pin of the 2nd 74HC14 chip 302.The other end of the 13 resistance R 13 is connected with the negative electrode of the 9th diode VD9, and the anode of the 9th diode VD9 is connected with 8 pin of the 2nd 74HC14 chip 302.
Referring to Fig. 1, passage set unit 5 comprises 8 road toggle switchs.An end of 1 tunnel, 2 tunnel, 3 tunnel, 4 tunnel, 5 tunnel, 6 tunnel, 7 tunnel and 8 tunnel of 8 road toggle switchs is ground connection respectively.1 tunnel the other end of 8 road toggle switchs is connected with 1 pin of a 74HC14 chip 301.2 tunnel the other end of 8 road toggle switchs is connected with 3 pin of a 74HC14 chip 301.3 tunnel the other end of 8 road toggle switchs is connected with 5 pin of a 74HC14 chip 301.4 tunnel the other end of 8 road toggle switchs is connected with 9 pin of a 74HC14 chip 301.5 tunnel the other end of 8 road toggle switchs is connected with 1 pin of the 2nd 74HC14 chip 302.6 tunnel the other end of 8 road toggle switchs is connected with 3 pin of the 2nd 74HC14 chip 302.7 tunnel the other end of 8 road toggle switchs is connected with 5 pin of the 2nd 74HC14 chip 302.8 tunnel the other end of 8 road toggle switchs is connected with 9 pin of the 2nd 74HC14 chip 302.
Referring to Fig. 1, driver element 6 comprises: the 14 resistance R 14, the 15 resistance R 15, the tenth diode VD10, the 11 diode VD11, relay K and triode VT1.One end of the 14 resistance R 14 is connected with 3 pin of 74HC08 chip 304, and the other end is connected with the base stage of triode VT1.The collector of triode VT1 is connected with an end of the 15 resistance R 15, and the negative electrode of the other end of resistance R 15 and the tenth diode VD10 connects.The anode of the tenth diode VD10 connects power Vcc.The collector of triode VT1 and the anodic bonding of the 11 diode VD11.The negative electrode of the 11 diode VD11 connects power Vcc.The collector of triode VT1 also is connected with the coil of relay K.The emitter of triode VT1 connects GND.The relay K auxiliary contact comprises common point 1, often makes war 2 and normally closed point 3.Also be provided with in the driver element 6 for external terminal 1A, the external terminal 1B and the external terminal 1C that connect other external control loop.Common point 1 is connected with external terminal 1A, and be connected with external terminal 1B described normal battle 2, and described normally closed point 3 is connected with external terminal 1C.
The pull switch pick-up unit that the application provides applies the 220V alternating current between the L of power supply unit 1 end and the N end when practical application.Eight passages in the isolated location 2 are connected with an end of eight pull switches one to one, and the other end of eight pull switches is connected with the L end of power supply unit 1 respectively.Terminal 1A, the 1B and the 1C that are connected with the auxiliary point of relay K in the driver element 6 can offer outside control loop and use, and are used for the control circuit of switching outside.The principle of work of the stay cord pick-up unit that the application provides is as follows: power supply unit 1 is introduced the 220V alternating current as the use power supply of whole device by L, N terminal, then power supply unit 1 provides (comprising isolated location 2, arithmetic logic unit 3, passage indicating member 4, passage set unit 5 and driver element 7) power supply of direct current+5V to inner other unit, and light emitting diode VD1 plays the power supply pilot lamp.The isolated location 2 of device mainly is comprised of 8 MID400 photoelectrical couplers, detect the state of pull switch after input end 1 pin process resistance R 4 step-downs of optocoupler by passage channel1～channel8, offer arithmetic logic unit 3 after the logic state " negate " of output terminal 6 pin process pull-up resistor (the 5th resistance R 5) with input end of optical coupler.The logic state that 2 74HC14 chips of arithmetic logic unit 3 (i.e. a 74HC14 chip 301 and the 2nd 74HC14 chip 302) are sent here optical coupler offers " with logic " computing that 74HC21 chip 302 carries out two-way 4 inputs after " negate " again, its result offers 74HC08 chip 304 and carries out once " with logic " computing again, and operation result offers driver element 6 by 3 pin of 74HC08 chip 304.When outside all pull switches all behind the normally closed, 3 pin of 74HC08 chip 304 are+5V " noble potential ", be connected with triode VT1 base stage and make its conducting by the 14 resistance R 14, the coil of relay K gets electric, the open and-shut mode that orders about the passive auxiliary contact of relay K overturns, thereby reaches the purpose of control external circuit by lead-out terminal 1A, 1B, 1C.Passage indicating member 4 is used to indicate the open and-shut mode of corresponding pull switch, and corresponding light emitting diode was lighted when pull switch was closed, and light emitting diode corresponding during the pull switch disjunction extinguishes.Passage set unit 5 mainly is comprised of 8 road toggle switchs, when needs forced passage state, corresponding toggle switch is closed, the input end current potential that 74HC14 chip (comprising a 74HC14 chip 301 and the 2nd 74HC14 chip 302) is corresponding is pulled down to " zero " current potential by force, the output terminal that then 74HC14 chip (comprising a 74HC14 chip 301 and the 2nd 74HC14 chip 302) is corresponding can obtain " height " current potential, thereby realizes the function of set.When open circuit property fault occurs or by disjunction, its corresponding passage pilot lamp will extinguish in the passage indicating member 4 in any one pull switch wherein, make maintenance personal and operating personnel can be accurately, which pull switch that forms a prompt judgement out specifically opens a way.Simultaneously, the lead-out terminal state overturns, thus the running status of the equipment of cut-out.If break down, and produce and not allow to pause, then corresponding setting switch can be pushed " ON " state, faulty channel is forced, to reach the effect of not impact equipment operation.
The embodiment of the present application has following beneficial effect:
1, can detect accurately the particular location of the pull switch that breaks down.
2, when producing in the situation that does not allow to pause, the pull switch of open circuit property fault can be arranged by this pick-up unit shielding, for next step maintenance provides guarantee, alleviate the contradiction of producing with maintenance.
3, this pick-up unit not only is suitable for the detection of adhesive tape conveyor pull switch, have for possessing " with " equipment of logical relation electric interlock, same applicable.
It should be noted last that, above embodiment is only unrestricted in order to the technical scheme that the application is described, although with reference to example the application is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the application's technical scheme, and not breaking away from the spirit and scope of present techniques scheme, it all should be encompassed in the middle of the application's the claim scope.
Claims (8)
1. a pull switch pick-up unit is characterized in that, comprising: power supply unit, isolated location, arithmetic logic unit, passage indicating member, passage set unit and driver element;
Described power supply unit is connected with described isolated location, arithmetic logic unit, driver element, passage set unit and the passage indicating member of being connected respectively;
Described isolated location also respectively with described logical block be connected passage set unit and be connected;
Described arithmetic logic unit also is connected with described passage indicating member, passage set unit and described driver element respectively.
2. pull switch pick-up unit according to claim 1, it is characterized in that described power supply unit comprises: the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the first diode VD1 and MAX610 chip;
Described the first resistance R 1 is connected with 7 pin of described MAX610 chip by described the first capacitor C 1;
1 pin of described MAX610 chip is connected with described isolated location;
5 pin of described MAX610 chip are connected with power Vcc behind the pin short circuit with being connected;
Connect GND behind 2 pin of described MAX610 chip and the 4 pin short circuits;
Described the second resistance R 2 is connected in parallel with described the first capacitor C 1;
8 pin of described MAX610 chip connect the positive pole of described the second capacitor C 2, the minus earth of described the second capacitor C 2;
The positive pole of described the 3rd capacitor C 3 is connected with power Vcc, minus earth;
The anode of described the first diode VD1 is connected with power Vcc, negative electrode be connected an end of the 3rd resistance R 3 and connect the other end ground connection of described the 3rd resistance R 3.
3. pull switch pick-up unit according to claim 2, it is characterized in that, described isolated location comprises: a MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler, the 8th MID400 optical coupler, first passage, second channel, third channel, four-way, Five-channel, the 6th passage, the 7th passage, the 8th passage, eight the 4th resistance R 4, eight the 5th resistance R 5 and eight the 4th capacitor C 4;
7 pin of each the MID400 optical coupler in a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and the 8th MID400 optical coupler are connected with 5 pin by described the 4th capacitor C 4,5 pin of each MID400 optical coupler connect GND, 6 pin of each MID400 optical coupler are connected with power Vcc by described the 5th resistance R 5, and 8 pin of each MID400 optical coupler connect power Vcc;
6 pin of a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and described the 8th MID400 optical coupler respectively with described arithmetic logic unit be connected passage set unit and be connected;
A described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, in the 7th MID400 optical coupler and described the 8th MID400 optical coupler 1 pin of each MID400 optical coupler respectively by described the 4th resistance R 4 correspondingly with described first passage, second channel, third channel, four-way, Five-channel, the 6th passage, the 7th passage and described the 8th passage connect;
3 pin of each MID chip are connected with 1 pin of described MAX610 chip in a described MID400 optical coupler, the 2nd MID400 optical coupler, the 3rd MID400 optical coupler, the 4th MID400 optical coupler, the 5th MID400 optical coupler, the 6th MID400 optical coupler, the 7th MID400 optical coupler and described the 8th MID400 optical coupler.
4. pull switch pick-up unit according to claim 3 is characterized in that, described arithmetic logic unit comprises: a 74HC14 chip, the 2nd 74HC14 chip, 74HC21 chip and 74HC08 chip;
1 pin of a described 74HC14 chip is connected with 6 pin of a described MID400 optical coupler, 2 pin are connected with 10 pin of described 74HC21 chip, 3 pin are connected with 6 pin of described the 2nd MID400 optical coupler, 4 pin are connected with 9 pin of described 74HC21 chip, 5 pin are connected with 6 pin of the 3rd MID400 optical coupler, 6 pin are connected with 5 pin of described 74HC21 chip, 7 pin ground connection, 8 pin are connected with 12 pin of described 74HC21 chip, 9 pin are connected with 6 pin of described the 4th MID400 optical coupler, 14 pin connect power Vcc;
1 pin of described the 2nd 74HC14 chip is connected with 6 pin of described the 5th MID400 optical coupler, 2 pin are connected with 4 pin of described 74HC21 chip, 3 pin are connected with 6 pin of described the 6th MID400 optical coupler, 4 pin are connected with 2 pin of described 74HC21 chip, 5 pin are connected with 6 pin of described the 7th MID400 optical coupler, 6 pin are connected with 1 pin of described 74HC21 chip, 7 pin ground connection, 8 pin are connected with 13 pin of described 74HC21 chip, 9 pin are connected with 6 pin of described the 8th MID400 optical coupler, 14 pin connect power Vcc; 1 pin, 3 pin, 5 pin and 9 pin of a described 74HC14 chip and described the 2nd 74HC14 chip also are connected with described passage set unit respectively; 2 pin, 4 pin, 6 pin and 8 pin of a described 74HC14 chip and described the 2nd 74HC14 chip also are connected with described passage indicating member respectively;
6 pin of described 74HC21 chip are connected with 2 pin of described 74HC08 chip, 7 pin ground connection, 8 pin are connected with 1 pin of described 74HC08 chip, 14 pin connect power Vcc;
3 pin of described 74HC08 chip are connected with described driver element, 7 pin ground connection, 14 pin connect power Vcc.
5. pull switch pick-up unit according to claim 4, it is characterized in that described passage indicating member comprises: the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12, the 13 resistance R 13, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the 5th diode VD5, the 6th diode VD6, the 7th diode VD7, the 8th diode VD8 and the 9th diode VD9;
After linking together, one end of described the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the 11 resistance R 11, the 12 resistance R 12 and described the 13 resistance R 13 is connected with GND;
The other end of described the 6th resistance R 6 is connected with the negative electrode of described the second diode VD2, and the anode of described the second diode VD2 is connected with 2 pin of a described 74HC14 chip; The other end of described the 7th resistance R 7 is connected with the negative electrode of described the 3rd diode VD3, and the anode of described the 3rd diode VD3 is connected with 4 pin of a described 74HC14 chip; The other end of described the 8th resistance R 8 is connected with the negative electrode of described the 4th diode VD4, and the anode of described the 4th diode VD4 is connected with 6 pin of a described 74HC14 chip; The other end of described the 9th resistance R 9 is connected with the negative electrode of described the 5th diode VD5, and the anode of described the 5th diode VD5 is connected with 8 pin of a described 74HC14 chip; The other end of described the tenth resistance R 10 is connected with the negative electrode of described the 6th diode VD6, and the anode of described the 6th diode VD6 is connected with 2 pin of described the 2nd 74HC14 chip; The other end of described the 11 resistance R 11 is connected with the negative electrode of described the 7th diode VD7, and the anode of described the 7th diode VD7 is connected with 4 pin of described the 2nd 74HC14 chip; The other end of described the 12 resistance R 2 is connected with the negative electrode of described the 8th diode VD8, and the anode of described the 8th diode VD8 is connected with 6 pin of described the 2nd 74HC14 chip; The other end of described the 13 resistance R 13 is connected with the negative electrode of described the 9th diode VD9, and the anode of described the 9th diode VD9 is connected with 8 pin of described the 2nd 74HC14 chip.
6. pull switch pick-up unit according to claim 5 is characterized in that, described passage set unit comprises 8 road toggle switchs;
An end of 1 tunnel, 2 tunnel, 3 tunnel, 4 tunnel, 5 tunnel, 6 tunnel, 7 tunnel and 8 tunnel of described 8 road toggle switchs is ground connection respectively;
1 tunnel the other end of described 8 road toggle switchs is connected with 1 pin of a described 74HC14 chip; 2 tunnel the other end of described 8 road toggle switchs is connected with 3 pin of a described 74HC14 chip; 3 tunnel the other end of described 8 road toggle switchs is connected with 5 pin of a described 74HC14 chip; 4 tunnel the other end of described 8 road toggle switchs is connected with 9 pin of a described 74HC14 chip; 5 tunnel the other end of described 8 road toggle switchs is connected with 1 pin of described the 2nd 74HC14 chip; 6 tunnel the other end of described 8 road toggle switchs is connected with 3 pin of described the 2nd 74HC14 chip; 7 tunnel the other end of described 8 road toggle switchs is connected with 5 pin of described the 2nd 74HC14 chip; 7 tunnel the other end of described 8 road toggle switchs is connected with 9 pin of described the 2nd 74HC14 chip.
7. pull switch pick-up unit according to claim 6 is characterized in that, described driver element comprises: the 14 resistance R 14, the 15 resistance R 15, the tenth diode VD10, the 11 diode VD11, relay K and triode VT1;
One end of described the 14 resistance R 14 is connected with 3 pin of 74HC08 chip, and the other end is connected with the base stage of described triode VT1; The collector of described triode VT1 is connected with an end of described the 15 resistance R 15, and the negative electrode of the other end of resistance R 15 and the tenth diode VD10 connects, and the anode of diode VD10 connects power Vcc; The collector of described triode VT1 and the anodic bonding of described the 11 diode VD11, the negative electrode of diode VD11 connects power Vcc; The collector of described triode VT1 also is connected with the coil of described relay K; The emitter of described triode VT1 connects GND.
8. pull switch pick-up unit according to claim 7, it is characterized in that described the first diode VD1, the second diode VD2, the 3rd diode VD3, the 4th diode VD4, the 5th diode VD5, the 6th diode VD6, the 7th diode VD7, the 8th diode VD8, the 9th diode VD9 and the tenth diode VD10 all adopt light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406058 CN202815177U (en) | 2012-08-16 | 2012-08-16 | Stay rope switch detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406058 CN202815177U (en) | 2012-08-16 | 2012-08-16 | Stay rope switch detecting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN202815177U true CN202815177U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220406058 Expired - Fee Related CN202815177U (en) | 2012-08-16 | 2012-08-16 | Stay rope switch detecting apparatus |
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| CN (1) | CN202815177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067995A (en) * | 2015-07-24 | 2015-11-18 | 浪潮电子信息产业股份有限公司 | Method of checking circuit board dial switch correctness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067995A (en) * | 2015-07-24 | 2015-11-18 | 浪潮电子信息产业股份有限公司 | Method of checking circuit board dial switch correctness |
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