CN204702262U - A kind of lapper with overload detection - Google Patents
A kind of lapper with overload detection Download PDFInfo
- Publication number
- CN204702262U CN204702262U CN201520269570.0U CN201520269570U CN204702262U CN 204702262 U CN204702262 U CN 204702262U CN 201520269570 U CN201520269570 U CN 201520269570U CN 204702262 U CN204702262 U CN 204702262U
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- overload detection
- voltage
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Abstract
The utility model discloses a kind of lapper with overload detection, comprise the portion of unreeling, slitting unit, winding portion and the driving circuit for driving motor, it is characterized in that: also comprise an overload detection circuit, described overload detection circuit comprises current transformer module, for detecting electrical motor input line electric current, and this current signal is converted into detection voltage; Base modules, for providing a reference voltage; Comparison module, comprises two input ends, and described two input ends are connected to current transformer module and base modules respectively, for benchmark voltage and detection voltage, when detecting output abnormality signal when voltage is greater than reference voltage; Trigger module, is coupled to comparison module, when receiving abnormal signal, exports energizing signal; Execution module, is coupled to trigger module, when receiving energizing signal, jumps disconnected connection between described driving circuit and external power supply.Ensure that the service life of motor, avoid the situation of maloperation and the wasting of resources caused.
Description
Technical field
The utility model relates to a kind of cloth process units, and more particularly, it relates to a kind of lapper with overload detection.
Background technology
Lapper is mainly used in the trimming of the wide cut coiled materials such as nonwoven fabrics or cuts, be 75 ㎜ by paper tube internal diameter, nonwoven fabrics external diameter is 600 ㎜, and length is the reel base material nonwoven fabrics within 1600 ㎜, cut into some volumes of actual needs size, the narrowlyest divide the edge cover strip switching to 18 ㎜.Again the cloth cut is carried out the shaping function of rolling.
It is primarily of three part compositions, and one, unreel part: 1, automatic deviation correction unreeling structure, join constant tension system.2, mechanical unwinding rack unreels, and magnet stopper controls tension force, without correction.Unwinding tension controls: unwinding tension adopts electromagnetic power brake to control, can manual regulation.Two, itemize part: 1, dise knife is initiatively cut.2, roller type meter counter is equipped with, convenient calculating rolling length.Three, rolling part, two slip shaft rolling, design for nonwoven fabrics material feature, because nonwoven fabrics is flexible, and unlike film, thickness is even, adopts common gas expansion shaft rolling, when cutting wide bar, effect difference is little, but some volume will be caused when cutting fillet more loose, and some volume is relatively tighter, and result is exactly that rolling is irregular.Use slip shaft rolling, can allowing paper tube on axle, have certain slippage, ensure that each elasticity of rolling up is all identical, also can reach good rolling regularity when cutting fillet.
But because whole mechanism is all that live roll is all connected with an electrical motor by a live roll drive, and pass through the drive of this electrical motor, draw the motion of whole cloth, but because lapper also comprises cutting mechanism, and cloth is according to different materials, different surfaces lines, also different to the friction of live roll, so load may be caused excessive by a direct motor drive, and cause electromotor overload, and electrical motor is in overload user None-identified, waste overcurrent without reason, cause motor life to reduce.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of lapper automatically jumping disconnected protection when electromotor overload.
For achieving the above object, the utility model provides following technical scheme: a kind of lapper with overload detection, comprise the portion of unreeling, slitting unit, winding portion and the driving circuit for driving motor, also comprise an overload detection circuit, described overload detection circuit comprises current transformer module, for detecting electrical motor input line electric current, and this current signal is converted into detection voltage; Base modules, for providing a reference voltage; Comparison module, comprises two input ends, and described two input ends are connected to current transformer module and base modules respectively, for benchmark voltage and detection voltage, when detecting output abnormality signal when voltage is greater than reference voltage; Trigger module, is coupled to comparison module, when receiving abnormal signal, exports energizing signal; Execution module, is coupled to trigger module, when receiving energizing signal, jumps disconnected connection between described driving circuit and external power supply.
Such setting, because motor running load and the proportional I=P/ of electric current (1.732*U*COS) be not although be linear relation, but also can by detecting the size of its electric current thus obtaining its overload situations, so connect an overload detection circuit, for detecting the input line electric current of electrical motor, when the size of current of line current exceedes preset value, the driving circuit of electrical motor is disconnected, thus make electric motor circuit breaking, one reduces potential safety hazard, and the service life of electrical motor and complete machine can be ensured, even if make user also can ensure circuit operational security when maloperation.
The utility model can be set to further: described current transformer module comprises current transformer, its first side winding is connected with electrical motor one input end, its secondary side is in series with the first resistance and the second resistance, and the node between described first resistance and the second resistance provides detection voltage.
The utility model can be set to further: described base modules comprises the first reference section, described first reference section comprises the 3rd resistance, the 4th resistance and the 5th resistance that are arranged in series successively, and the node that described 3rd resistance and the 4th resistance couple provides reference voltage.
The utility model can be set to further: described comparison module comprises a comparator, and its mouth is used for output abnormality signal.
The utility model can be set to further: trigger module comprises the 6th resistance of connecting successively and the 7th resistance, and the node between described 6th resistance and the 7th resistance provides energizing signal.
The utility model can be set to further: described execution module comprises time delay portion, for getting rid of signal disturbing, when receiving energizing signal, sends time delayed signal; Protection switch, is connected between external power supply and driving circuit, and switch-linear hybrid is normally closed; Enforcement division, is connected to time delay portion, and when receiving time delayed signal, Control protection switch is jumped disconnected.
The utility model can be set to further: described overload detection circuit also comprises alarm module, is coupled to execution module, when receiving energizing signal, reminds user's abnormal condition.
Compared to prior art; the utility model creates following beneficial effect: when user puts into the larger material of friction factor; or now dise knife is also in work; cause motor load excessive; overload detection circuit obtains load condition by detecting, and compares and judges protection, so; ensure that the service life of motor, avoid the situation of maloperation and the wasting of resources caused.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model lapper;
Fig. 2 is the circuit diagram of the utility model overload detection circuit.
Reference numeral: 1, current transformer module; 11, current transformer; 12, test section; 13, low pass filtering section; 2, base modules; 3, comparison module; 4, trigger module; 5, execution module; 6, alarm module; A1, unreel portion; A2, slitting unit; A3, winding portion.
Detailed description of the invention
See figures.1.and.2 and the utility model embodiment is described further.
With a lapper for overload detection, comprise and unreel portion A1, slitting unit A2, winding portion A3 and the driving circuit for driving motor, also comprise an overload detection circuit, described overload detection circuit comprises
Current transformer 11 module 1, for detecting electrical motor input line electric current, and is converted into detection voltage by this current signal; Current transformer 11, its first side winding is connected with electrical motor one input end, and its secondary side is in series with the test section 12 that the first resistance R1 and the second resistance R2 forms, and the node between described first resistance R1 and the second resistance R2 provides detection voltage.First resistance R1 resistance elects 47 ohm as, and the second resistance R2 resistance elects 100 ohm as.Also be connected with the low pass filtering section 13 of the 8th resistance R8 and the first electric capacity composition between current transformer 11 and test section 12, for the harmonic wave in elimination current transformer inducing current, the first capacitance elects 0.5F as, and the 8th resistance R8 resistance is preferably 1 ohm.
Base modules 2, for providing a reference voltage; First reference section, described first reference section comprises the 3rd resistance R3, the 4th resistance R4 and the 5th resistance R5 that are arranged in series successively, and the node that described 3rd resistance R3 and the 4th resistance R4 couples provides reference voltage.5th resistance R5 is adjustable resistance, and its maximum value is 100 ohm, and the 4th resistance R4 resistance elects 47 ohm as, and the 3rd resistance R3 resistance elects 20 ohm as; Obtain stable reference voltage by the mode of dividing potential drop, and can regulate according to circuit actual conditions.
Comparison module 3, comprises two input ends, and described two input ends are connected to current transformer 11 module 1 and base modules 2 respectively, for benchmark voltage and detection voltage, when detecting output abnormality signal when voltage is greater than reference voltage; One comparator U1, its mouth is used for output abnormality signal.Comparator U1 model elects LM335 as.
Trigger module 4, is coupled to comparison module 3, when receiving abnormal signal, exports energizing signal; The 6th resistance R6 connected successively and the 7th resistance R7, the node between described 6th resistance R6 and the 7th resistance R7 provides energizing signal.6th resistance R6 resistance and the 7th resistance R7 resistance are all set to 10 ohm, and its node connected is connected to a switching valve Q1.
Execution module 5, is coupled to trigger module 4, when receiving energizing signal, jumps disconnected connection between described driving circuit and external power supply.Time delay portion, for getting rid of signal disturbing, when receiving energizing signal, sends time delayed signal; Comprise switching valve Q1, its model elects 9014 as, and its controlled terminal is in series with a slug relay KT1, and setup times is 1 second, when after time delay in 1 second, the slug relay KT1 open contact action on controlling brancher, enforcement division, be connected to time delay portion, when receiving time delayed signal, Control protection K switch 2 is jumped disconnected; Comprise slug relay's KT1 open contact and be connected with a latch-in relay K2; couple with its actuation coil, its locking coil is held between power end with being connected to, when it obtains electric; Control protection K switch 2 closes, and locking coil is also selectively in series with a button switch (not shown).Protection switch K2, is connected between external power supply and driving circuit, and switch-linear hybrid is normally closed.
Alarm module 6, is coupled to execution module 5, when receiving energizing signal, and alarm during prompting user's abnormal condition.In response to latch-in relay K2 action, it comprises an an alarm lamp EL and buzzer phone SP, the enable warning when motor overload.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the lapper with overload detection, comprise the portion of unreeling, slitting unit, winding portion and the driving circuit for driving motor, it is characterized in that: also comprise an overload detection circuit, described overload detection circuit comprises
Current transformer module, for detecting electrical motor input line electric current, and is converted into detection voltage by this current signal;
Base modules, for providing a reference voltage;
Comparison module, comprises two input ends, and described two input ends are connected to current transformer module and base modules respectively, for benchmark voltage and detection voltage, when detecting output abnormality signal when voltage is greater than reference voltage;
Trigger module, is coupled to comparison module, when receiving abnormal signal, exports energizing signal;
Execution module, is coupled to trigger module, when receiving energizing signal, jumps disconnected connection between described driving circuit and external power supply.
2. a kind of lapper with overload detection according to claim 1, is characterized in that: described current transformer module comprises
Current transformer, its first side winding is connected with electrical motor one input end, and its secondary side is in series with the first resistance and the second resistance, and the node between described first resistance and the second resistance provides detection voltage.
3. a kind of lapper with overload detection according to claim 1, it is characterized in that: described base modules comprises the first reference section, described first reference section comprises the 3rd resistance, the 4th resistance and the 5th resistance that are arranged in series successively, and the node that described 3rd resistance and the 4th resistance couple provides reference voltage.
4. a kind of lapper with overload detection according to claim 1, is characterized in that: described comparison module comprises a comparator, and its mouth is used for output abnormality signal.
5. a kind of lapper with overload detection according to claim 1, is characterized in that: trigger module comprises the 6th resistance of connecting successively and the 7th resistance, and the node between described 6th resistance and the 7th resistance provides energizing signal.
6. a kind of lapper with overload detection according to claim 1, is characterized in that: described execution module comprises
Time delay portion, for getting rid of signal disturbing, when receiving energizing signal, sends time delayed signal;
Protection switch, is connected between external power supply and driving circuit, and switch-linear hybrid is normally closed;
Enforcement division, is connected to time delay portion, and when receiving time delayed signal, Control protection switch is jumped disconnected.
7. a kind of lapper with overload detection according to claim 1 or 2 or 3 or 4 or 5 or 6, is characterized in that: described overload detection circuit also comprises alarm module, is coupled to execution module, when receiving energizing signal, reminds user's abnormal condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269570.0U CN204702262U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper with overload detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269570.0U CN204702262U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper with overload detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204702262U true CN204702262U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520269570.0U Expired - Fee Related CN204702262U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper with overload detection |
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| CN (1) | CN204702262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518552A (en) * | 2019-09-28 | 2019-11-29 | 瑞纳智能设备股份有限公司 | A kind of actuator torque overload protecting circuit and its guard method |
-
2015
- 2015-04-29 CN CN201520269570.0U patent/CN204702262U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518552A (en) * | 2019-09-28 | 2019-11-29 | 瑞纳智能设备股份有限公司 | A kind of actuator torque overload protecting circuit and its guard method |
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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: 20151014 Termination date: 20160429 |