CN210626966U - Safety control circuit of cigarette making machine - Google Patents
Safety control circuit of cigarette making machine Download PDFInfo
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- CN210626966U CN210626966U CN201922012717.9U CN201922012717U CN210626966U CN 210626966 U CN210626966 U CN 210626966U CN 201922012717 U CN201922012717 U CN 201922012717U CN 210626966 U CN210626966 U CN 210626966U
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- relay
- making machine
- power supply
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- cigarette making
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 abstract description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- XXUZFRDUEGQHOV-UHFFFAOYSA-J strontium ranelate Chemical compound [Sr+2].[Sr+2].[O-]C(=O)CN(CC([O-])=O)C=1SC(C([O-])=O)=C(CC([O-])=O)C=1C#N XXUZFRDUEGQHOV-UHFFFAOYSA-J 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The safety control circuit of the cigarette making machine comprises a non-contact sensor for detecting the switching state of a protective door, wherein the non-contact sensor is connected to the input end of an optical coupler, the output end of the optical coupler is connected with the control end of a non-contact switch, the input end of the non-contact switch is connected with the positive pole of a power supply, and the output end of the non-contact switch is connected with a coil of a relay so as to control the on-off of the relay; one end of the normally open contact of the relay is connected with the positive electrode of the power supply, and the other end of the normally open contact of the relay is connected with a coil of an enabling relay of a frequency converter of a main motor of the cigarette making machine; one end of a group of normally closed contacts of the relay is connected with the positive electrode of the power supply, and the other end of the normally closed contacts of the relay is connected with the input end of the cigarette making machine controller to provide a protection door switch state signal; and the other group of normally closed contacts of the relay is connected in series in the buzzer alarm circuit. The safety protection interlocking device solves the problems that a micro travel switch in a safety protection interlocking device of a cigarette making machine is inflexible in action and easy to damage.
Description
Technical Field
The utility model belongs to the technical field of the cigarette, concretely relates to safety control circuit that can be used to PROTOS cigarette machine.
Background
The PROTOS cigarette making machine is cigarette packing equipment for packing tobacco shred into cigarette with cigarette paper. The device uses a micro-motion travel switch to detect the opening and closing of the protective door. The protective door is provided with a cam, and the cam rotates along with the opening and closing of the protective door. The micro switch is installed on the machine. The micro switch is provided with a pinch roller, a pair of normally open contacts and a pair of normally closed contacts, when the pinch roller is not pressed, the normally open contacts are disconnected, and the normally closed contacts are closed; when the pinch roller is pressed, the normally open contact is driven to be closed, and the normally closed contact is disconnected.
The normally closed contact of the microswitch is used for controlling the main drive motor frequency converter enabling relay, when the protective door is closed, the cam leaves the pinch roller, the pinch roller is in a release state, the normally closed contact is closed, the enabling relay is electrified, and the main drive motor is allowed to run. One end of a normally open contact of the microswitch is connected with the 24V power supply, the other end of the microswitch is connected with an input point of the machine controller PLC, when the protective door is opened, the pinch roller is pressed by the cam to drive the normally open contact inside the pinch roller to be closed, 24V power supply signals are input to the corresponding PLC input point through the closed normally open contact, and information output of the protective door opening is given to the display screen by the PLC to prompt the operator.
In the production process, the protective door needs to be frequently disassembled and assembled when equipment is maintained, and the microswitch is easily damaged by frequent actions, so that the service life of the microswitch is shortened. In addition, because the tobacco production equipment can't avoid often be in the environment of many smoke and dust, many offal, inside partial offal can permeate micro-gap switch, make micro-gap switch's pinch roller action inflexible to make normally open contact and normally closed contact laying dust, the event often causes normally open contact and normally closed contact can't switch on, leads to the unable actuation of main driving motor converter messenger relay, the unable trouble that starts of equipment. The maintenance worker is required to clean the internal tobacco dust of the safety switch or replace the safety switch with a new one, so that the operation efficiency of the equipment is influenced.
SUMMERY OF THE UTILITY MODEL
The disclosure provides a safety control circuit of a cigarette making machine, which aims to solve the problems that a micro travel switch in a safety protection interlocking device of the cigarette making machine is inflexible in action and easy to damage.
According to an aspect of the embodiments of the present disclosure, a safety control circuit for a cigarette making machine is provided, which includes a non-contact sensor for detecting a switch state of a protective door, the non-contact sensor is connected to an input end of an optical coupler, an output end of the optical coupler is connected to a control end of a non-contact switch, an input end of the non-contact switch is connected to a positive electrode of a power supply, and an output end of the non-contact switch is connected to a coil of a relay to control on/off of the relay; one end of the normally open contact of the relay is connected with the positive electrode of the power supply, and the other end of the normally open contact of the relay is connected with a coil of an enabling relay of a frequency converter of a main motor of the cigarette making machine; one end of a group of normally closed contacts of the relay is connected with the positive electrode of the power supply, and the other end of the normally closed contacts of the relay is connected with the input end of the cigarette making machine controller to provide a protection door switch state signal.
In the safety control circuit of the cigarette making machine, the other group of normally closed contacts of the relay is connected in series in the buzzer alarm circuit.
In the safety control circuit of the cigarette making machine, the other end of the normally open contact of the relay is connected with one end of the LED power supply circuit, and the other end of the LED power supply circuit is connected with the power supply of 0V.
Drawings
The present disclosure is described in further detail below with reference to the attached drawings and the detailed description.
Figure 1 illustrates the topology of a cigarette-making machine safety control circuit according to a first embodiment of the present disclosure.
Detailed Description
Referring to fig. 1, a safety control circuit for a cigarette making machine includes a non-contact sensor, an optical coupler, a non-contact switch IC2 and a relay K. The non-contact sensor is arranged on the cigarette making machine and used for detecting the opening and closing state of the protective door. The non-contact sensor can adopt an inductive sensor, and when the protective door made of metal is closed and approaches the inductive sensor, the inductive sensor outputs a voltage signal in a sensing mode.
The output end of the non-contact sensor is connected with one end of the input end of the optical coupler through a resistor R1, and the other end of the input end of the optical coupler is connected with a power supply 0V through a light-emitting diode LED 1. The resistor R2 has one end connected to the resistor R1 and the other end connected to a power supply of 0V. The cathode of the diode D1 is connected with the resistor R1, and the anode is connected with a power supply 0V. One end of the output end of the optical coupler is connected with the anode of the power supply through a resistor R3, and the other end of the output end of the optical coupler is connected with the power supply 0V through a resistor R4.
The non-contact switch IC2 is a micro-current triggered current-type control device, and replaces a relay to be a non-contact high-speed switch. The contactless switch IC2 can adopt TWH8778, pin 1 is input end, pins 2 and 3 are output ends, pin 4 is grounded, and pin 5 is control end. The output end of the optical coupler is connected with the control end of the non-contact switch, the input end of the non-contact switch is connected with the anode of a power supply, and the output end of the non-contact switch is connected with the coil of the relay K to control the on-off of the relay K. In addition, the cathode of the diode D2 is connected with the output end of the contactless switch, and the anode is connected with the power supply 0V.
One end of a normally open contact of the relay K is connected with the positive electrode of the power supply, and the other end of the normally open contact of the relay K is connected with coils A34 and A35 of an enabling relay of a frequency converter of the main motor. The other end of the normally open contact of the relay K is connected with one end of an LED2 power supply circuit, and the other end of the LED2 power supply circuit is connected with a power supply of 0V. One end of a group of normally closed contacts of the relay K is connected with the positive electrode of a power supply, the other end of the relay K is connected with the input end of the cigarette machine PLC controller so as to provide a protective door switch state signal, and the PLC controller outputs the information of the opening and closing of the protective door to a display screen to prompt the operator for information. And the other group of normally closed contacts of the relay is connected in series in the buzzer alarm circuit.
When the protective door is opened, the non-contact sensor is not induced and does not output voltage, the coil of the relay K loses power, the normally open contact of the relay K is disconnected, the enabling relay of the frequency converter is controlled to lose power, and the cigarette making machine cannot be started; meanwhile, the normally closed contact is closed, a voltage signal is input into the PLC, the PLC outputs the opening information of the protective door to the display screen to give prompt information to an operator, and the buzzer can make a sound to prompt that the protective door is opened (not closed).
When the protective door is closed, the protective door is close to the non-contact sensor, the non-contact sensor is subjected to sensing output voltage, the coil of the relay K is electrified, the normally open contact of the relay K is closed, so that the enabling relay of the control frequency converter is electrified, the LED2 is bright, and the cigarette making machine operates normally. Meanwhile, the normally closed contact is disconnected, no voltage signal is input to the PLC, and the display screen can display that the protective door is closed.
This openly close of adopting non-contact mode response guard gate can avoid mechanical safety switch because the drawback of the switch actuating mechanism damage that frequently moves and cause. The safety protection door has the hearing warning function, and the closing condition of the safety protection door is prompted from the hearing aspect, so that the condition that an operator ignores visual warning due to fatigue is avoided, and the personal safety of the operator is protected. The intelligent interlocking device has a self-checking indication function, the state of each protective door can be clearly known through the on and off of the LED2, and each protective door does not need to be checked one by one when the interlocking fault of the protective door occurs.
Claims (3)
1. A safety control circuit of a cigarette making machine is characterized by comprising a non-contact sensor for detecting the switching state of a protective door, wherein the non-contact sensor is connected to the input end of an optical coupler, the output end of the optical coupler is connected with the control end of a non-contact switch, the input end of the non-contact switch is connected with the positive pole of a power supply, and the output end of the non-contact switch is connected with a coil of a relay so as to control the on-off of the relay; one end of the normally open contact of the relay is connected with the positive electrode of the power supply, and the other end of the normally open contact of the relay is connected with a coil of an enabling relay of a frequency converter of a main motor of the cigarette making machine; one end of a group of normally closed contacts of the relay is connected with the positive electrode of the power supply, and the other end of the normally closed contacts of the relay is connected with the input end of the cigarette making machine controller to provide a protection door switch state signal.
2. The cigarette making machine safety control circuit according to claim 1, wherein the other set of normally closed contacts of the relay is connected in series in the buzzer alarm circuit.
3. The safety control circuit of the cigarette making machine according to claim 1 or 2, wherein the other end of the normally open contact of the relay is connected with one end of an LED power supply circuit, and the other end of the LED power supply circuit is connected with a power supply of 0V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012717.9U CN210626966U (en) | 2019-11-20 | 2019-11-20 | Safety control circuit of cigarette making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012717.9U CN210626966U (en) | 2019-11-20 | 2019-11-20 | Safety control circuit of cigarette making machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210626966U true CN210626966U (en) | 2020-05-26 |
Family
ID=70754032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922012717.9U Active CN210626966U (en) | 2019-11-20 | 2019-11-20 | Safety control circuit of cigarette making machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210626966U (en) |
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2019
- 2019-11-20 CN CN201922012717.9U patent/CN210626966U/en active Active
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