CN203587998U - Cycle timing circuit for servo motor for film covering machine - Google Patents
Cycle timing circuit for servo motor for film covering machine Download PDFInfo
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- CN203587998U CN203587998U CN201320640392.9U CN201320640392U CN203587998U CN 203587998 U CN203587998 U CN 203587998U CN 201320640392 U CN201320640392 U CN 201320640392U CN 203587998 U CN203587998 U CN 203587998U
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- electric capacity
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- relay
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Abstract
The utility model discloses a cycle timing circuit for a servo motor for a film covering machine. The cycle timing circuit comprises an operational amplifier, a triode, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, and an eighth resistor. The cycle timing circuit is advantageous in that, when the servo motor is started, the level of the first terminal at the upper end of the second capacitor is the lowest, The output of the operational amplifier is a low level, a current charges the second capacitor via the fourth resistor, with time passing, a charging voltage on the second capacitor gradually rises. The output terminal of the operational amplifier is turned to be at a high level, a triode VT is conducted, and the relay K pulls in. The cycle timing circuit is advantageous in that, cycle timing of the servo motor is enabled via the current, and starting or stopping of work is controlled.
Description
Technical field
The utility model relates to a kind of timing circuit, relates in particular to a kind of repetitive timing circuit for laminating machine servomotor.
Background technology
Timer comprises several types, and on-delay type timer is that on-delay type timer is the most basic the most common timer in various PLC, and this timer, in the PLC of SIEMENS, is called SD type timer; Off delay type timer be when initial conditions 00000 during for ON without time-lag action, only at initial conditions 00000, produce time-lag action during for OFF.In the PLC of SIEMENS, be called SF type timer; Maintenance on-delay timer is when initial conditions 00000 is for after ON, produce latch function, even if initial conditions 00000 becomes again OFF, depending on initial conditions, be still ON, when the currency of timer equals setting value, timer action, this timer, in the PLC of SIEMENS, is called SS type timer; Impulse type timer is when initial conditions 00000 is for after ON, timer instant action, but after the time setting through timer, even if initial conditions 00000 is still ON, timer but becomes OFF state.Be that holding time of this timer ON state determined by setting value.If 00000 continuous time while being ON was less than the setting value of timer, the ON state of timer hold time into initial conditions 00000 be the duration of ON.This timer, in the PLC of SIEMENS, is called SP type timer; The difference of expanding pulse timer and impulse type timer is, as long as ON state has appearred in initial conditions 00000, no matter its duration how long, all can make timer, is that time maintaining of ON is consistent with the setting value of timer.This timer, in the PLC of SIEMENS, is called SE type timer.Traditional timer circuit exists regularly accurate not problem mostly.
Utility model content
The purpose of this utility model provides a kind of repetitive timing circuit for laminating machine servomotor with regard to being in order to address the above problem.
In order to achieve the above object, the utility model has adopted following technical scheme:
A repetitive timing circuit for laminating machine servomotor, comprises operational amplifier, triode, the first switch, second switch, the 3rd switch, the 4th switch, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, the inverting input of described amplifier is connected with the first end of described the 7th resistance with the first end of described the 5th resistance respectively, the second end of described the 5th resistance is connected with the first end of described the second resistance with the first end of described the first resistance respectively, the second end of described the first resistance respectively with the first end of described the second electric capacity, the first end of the first contact switch of relay, the first end of described the 4th resistance, the cathode output end of described operational amplifier is connected with the first end of relay, and the first end of relay is voltage input end, the second end of described the second electric capacity respectively with the second end of the first contact switch of relay, the first end of described the 4th switch is connected with the first end of described the 3rd resistance, the second end of described the second resistance respectively with the second end of described the 3rd resistance, the first end of the second contact switch of relay, the first end of described the first electric capacity, the first end of described the 3rd electric capacity, the cathode output end of described operational amplifier, ground connection after the emitter of described triode is connected with the first end of described second switch, the second end of the second contact switch of relay respectively with the second end of described the first electric capacity, the first end of described the 3rd switch is connected with the second end of described the 4th resistance, the second end of described the 3rd switch respectively with the second end of described the 3rd electric capacity, the first end of described the 6th resistance is connected with the second end of described the 4th switch, the second end of described the 6th resistance is connected with the first end of described the 4th electric capacity with the in-phase input end of described operational amplifier respectively, the second end of described the 4th electric capacity respectively with the signal output part of described operational amplifier, the first end of described the 8th resistance is connected with the second end of described the 7th resistance, the second end of described the 8th resistance is connected with the base stage of described triode, the collector of described triode is connected with the first end of described the first switch and the second end of second switch respectively, and the second end of described the first switch is connected with the second end of relay.
The beneficial effects of the utility model are:
A reference voltage being formed by the first resistance and the second electric resistance partial pressure of its inverting input access of operational amplifier in circuit of the present utility model, when starting servomotor work, the second electric capacity upper end first end level minimum, the signal output part of operational amplifier is low level, electric current passes through the 4th resistance to the second capacitor charging, As time goes on, charging voltage on the second electric capacity progressively raises, the output terminal of operational amplifier overturns immediately as high level, and make triode VT conducting, relay K adhesive, adopt the utility model electric current can make servomotor circulation timing, and control it and start or quit work.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of repetitive timing circuit for laminating machine servomotor of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of repetitive timing circuit for laminating machine servomotor of the utility model, comprises operational amplifier IC, triode VT, the first switch S 1, second switch S2, the 3rd switch S 3, the 4th switch S 4, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7 and the 8th resistance R 8, the inverting input of amplifier IC is connected with the first end of the 7th resistance R 7 with the first end of the 5th resistance R 5 respectively, the second end of the 5th resistance R 5 is connected with the first end of the second resistance R 2 with the first end of the first resistance R 1 respectively, the second end of the first resistance R 1 respectively with the first end of the second capacitor C 2, the first end of the first contact switch K-1 of relay, the first end of the 4th resistance R 4, the cathode output end of operational amplifier IC is connected with the first end of relay K, and the first end of relay K is voltage input end, the second end of the second capacitor C 2 respectively with the second end of the first contact switch K-1 of relay, the first end of the 4th switch S 4 is connected with the first end of the 3rd resistance R 3, the second end of the second resistance R 2 respectively with the second end of the 3rd resistance R 3, the first end of the second contact switch K-2 of relay, the first end of the first capacitor C 1, the first end of the 3rd capacitor C 3, the cathode output end of operational amplifier IC, ground connection after the first end of the emitter of triode VT and second switch S2 is connected, the second end of the second contact switch K-2 of relay respectively with the second end of the first capacitor C 1, the first end of the 3rd switch S 3 is connected with the second end of the 4th resistance R 4, the second end of the 3rd switch S 3 respectively with the second end of the 3rd capacitor C 3, the first end of the 6th resistance R 6 is connected with the second end of the 4th switch S 4, the second end of the 6th resistance R 6 is connected with the first end of the 4th capacitor C 4 with the in-phase input end of operational amplifier IC respectively, the second end of the 4th capacitor C 4 respectively with the signal output part of operational amplifier IC, the first end of the 8th resistance R 8 is connected with the second end of the 7th resistance R 7, the second end of the 8th resistance R 8 is connected with the base stage of triode VT, the collector of triode VT is connected with the first end of the first switch S 1 and the second end of second switch S2 respectively, and the second end of the first switch S 1 is connected with the second end of relay K.
The principle of work of a kind of repetitive timing circuit for laminating machine servomotor of the utility model is as follows:
A reference voltage being formed by the first resistance R 1 and the second resistance R 2 dividing potential drops of its inverting input access of operational amplifier IC in circuit, when starting servomotor work, the second capacitor C 2 upper ends first end level minimum, operational amplifier IC is output as low level, electric current charges to the second capacitor C 2 by the 4th resistance R 4, As time goes on, charging voltage in the second capacitor C 2 progressively raises, the output terminal of operational amplifier IC overturns immediately as high level, and make triode VT conducting, relay K adhesive, the 3rd capacitor C 3 in circuit is for preventing that contact upset moment of relay K from producing misoperation and setting up, in circuit, be also provided with two pushbutton switches of the first switch S 1 and second switch S2, pressing the first switch S 1 or second switch S2 can make relay K proceed to immediately respectively power-off or "on" position, thereby can control servomotor and proceed to immediately start or off-mode.
Claims (1)
1. for a repetitive timing circuit for laminating machine servomotor, it is characterized in that: comprise operational amplifier, triode, the first switch, second switch, the 3rd switch, the 4th switch, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the 8th resistance, the inverting input of described amplifier is connected with the first end of described the 7th resistance with the first end of described the 5th resistance respectively, the second end of described the 5th resistance is connected with the first end of described the second resistance with the first end of described the first resistance respectively, the second end of described the first resistance respectively with the first end of described the second electric capacity, the first end of the first contact switch of relay, the first end of described the 4th resistance, the cathode output end of described operational amplifier is connected with the first end of relay, and the first end of relay is voltage input end, the second end of described the second electric capacity respectively with the second end of the first contact switch of relay, the first end of described the 4th switch is connected with the first end of described the 3rd resistance, the second end of described the second resistance respectively with the second end of described the 3rd resistance, the first end of the second contact switch of relay, the first end of described the first electric capacity, the first end of described the 3rd electric capacity, the cathode output end of described operational amplifier, ground connection after the emitter of described triode is connected with the first end of described second switch, the second end of the second contact switch of relay respectively with the second end of described the first electric capacity, the first end of described the 3rd switch is connected with the second end of described the 4th resistance, the second end of described the 3rd switch respectively with the second end of described the 3rd electric capacity, the first end of described the 6th resistance is connected with the second end of described the 4th switch, the second end of described the 6th resistance is connected with the first end of described the 4th electric capacity with the in-phase input end of described operational amplifier respectively, the second end of described the 4th electric capacity respectively with the signal output part of described operational amplifier, the first end of described the 8th resistance is connected with the second end of described the 7th resistance, the second end of described the 8th resistance is connected with the base stage of described triode, the collector of described triode is connected with the first end of described the first switch and the second end of second switch respectively, and the second end of described the first switch is connected with the second end of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640392.9U CN203587998U (en) | 2013-10-17 | 2013-10-17 | Cycle timing circuit for servo motor for film covering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640392.9U CN203587998U (en) | 2013-10-17 | 2013-10-17 | Cycle timing circuit for servo motor for film covering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587998U true CN203587998U (en) | 2014-05-07 |
Family
ID=50585890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320640392.9U Expired - Fee Related CN203587998U (en) | 2013-10-17 | 2013-10-17 | Cycle timing circuit for servo motor for film covering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587998U (en) |
-
2013
- 2013-10-17 CN CN201320640392.9U patent/CN203587998U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |