CN204702263U - A kind of lapper of load speed governing - Google Patents
A kind of lapper of load speed governing Download PDFInfo
- Publication number
- CN204702263U CN204702263U CN201520269373.9U CN201520269373U CN204702263U CN 204702263 U CN204702263 U CN 204702263U CN 201520269373 U CN201520269373 U CN 201520269373U CN 204702263 U CN204702263 U CN 204702263U
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- Prior art keywords
- speed
- electrical motor
- load
- speed governing
- module
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Abstract
The utility model discloses a kind of lapper of load speed governing, comprise the portion of unreeling, slitting unit, winding portion and electrical motor, described electrical motor is connected with alignment circuit, described alignment circuit comprises current transformer module, for detecting electrical motor input line electric current, and this current signal is converted into detection voltage; Load comparison module, is connected to current transformer module, sends speed-regulating signal according to detection voltage magnitude scope; Speed adjusting module, is connected to load comparison module, receives speed-regulating signal, for carrying out speed governing to electrical motor.Make can automatically select most suitable rotating speed during the product of this equipment rolling different materials, with the efficiency in the service life and product rolling that ensure its equipment.
Description
Technical field
The utility model relates to a kind of cloth process units, and more particularly, it relates to a kind of lapper of load speed governing.
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, constant according to the motor speed that different materials is arranged, if so with the corresponding different materials of single rotating speed, the cloth of lines, one easily causes motor load excessive, and carry out to affect cloth driving efficiency (the less cloth of Relative friction can with speed transmission faster).
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is a kind of lapper by detection motor load, electrical motor being carried out to speed governing.
For achieving the above object, the utility model provides following technical scheme: a kind of lapper of load speed governing, comprise the portion of unreeling, slitting unit, winding portion and electrical motor, described electrical motor is connected with alignment circuit, described alignment circuit comprises current transformer module, for detecting electrical motor input line electric current, and this current signal is converted into detection voltage; Load comparison module, is connected to current transformer module, sends speed-regulating signal according to detection voltage magnitude scope; Speed adjusting module, is connected to load comparison module, receives speed-regulating signal, for carrying out speed governing to electrical motor.
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 condition of loading, and the current signal received is compared by load comparison module, be translated into digital signal, for speed governing, again by the mode of gating resistance, digital signal is converted into the analog signal that amplitude is different, input in the control circuit (the speed governing pin of frequency converter) of electrical motor, thus control motor speed, so just can when load be larger, reduce the rotating speed of electrical motor, the product making impedance larger can steadily rolling, one can avoid its rotational efficiency of electrostatic influence, two, can make be guaranteed whole equipment life.
The utility model can be set to further: described load comparison module also comprises instruction unit, uses this current speed state for reminding.
The utility model can be set to further: described current transformer module comprises current transformer, and its first side winding is connected with electrical motor one input end, and its secondary side is in series with test section; Described test section comprises 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 load comparison module also comprises reference section, for providing multiple reference voltage varied in size; Comparing section, is connected to reference section summation current transformer module, multiple reference voltage and detection voltage is compared respectively, exports speed-regulating signal according to comparative result difference.
The utility model can be set to further: be also connected with low pass filtering section between described test section summation current transformer.
The utility model can be set to further: described speed adjusting module comprises frequency converter, for controlling electrical motor work; Speed governing portion, its arrange multiple be all connected to load comparison module input end and a mouth being connected to frequency converter timing pin.
Compared to prior art, the utility model creates following beneficial effect: make can automatically select most suitable rotating speed during the product of this equipment rolling different materials, with the efficiency in the service life and product rolling that ensure its equipment.
Accompanying drawing explanation
Fig. 1 is the utility model External view;
Fig. 2 is the utility model frequency converter interconnecting wiring diagram;
Fig. 3 is the utility model current transformer module circuit diagram;
Fig. 4 is the utility model comparing section circuit diagram;
Fig. 5 is the utility model reference section circuit diagram;
Fig. 6 is the utility model speed governing portion circuit diagram.
Reference numeral: 1, frequency converter; 2, current transformer module; 21, current transformer; 22, test section; 23, low pass filtering section; 3, comparing section; 4, reference section; 5, speed governing portion; 6, instruction unit; A1, unreel portion; A2, slitting unit; A3, winding portion.
Detailed description of the invention
Referring to figs. 1 through Fig. 6, the utility model embodiment is described further.
A lapper for load speed governing, comprises and unreels portion A1, slitting unit A2, winding portion A3 and electrical motor, and described electrical motor is connected with alignment circuit, and described alignment circuit comprises
As shown in Figures 2 and 3, current transformer 21 module 2, for detecting electrical motor input line electric current, and is converted into detection voltage by this current signal; Comprise current transformer 21, its first side winding is connected with electrical motor one input end, and its secondary side is in series with test section 22; Described test section 22 comprises the first resistance and the second resistance, and the node between described first resistance and the second resistance provides detection voltage.Low pass filtering section 23 is also connected with between described test section 22 summation current transformer 21, described low pass filtering section 23 comprises the 3rd resistance and the first electric capacity, described 3rd resistance elects 1 ohm as, and the 3rd capacitance elects 5F as, for the high-frequency harmonic that elimination current transformer 21 produces, current transformer 21 induces motor input current, to the first resistance and the second resistance, produces detect voltage at node V1.
Load comparison module, is connected to current transformer 21 module 2, sends speed-regulating signal according to detection voltage magnitude scope; Comprise reference section 4, as Fig. 5, being provided with three resistance is that the resistance of one group is worn, being respectively resistance RX1, RX2, RX3(X is 1 to 8 Any Digits), each group resistance RX1 arranges difference, and it is maximum to get R11 resistance, then reduces successively, the reference voltage that it is provided is presented to set up and is put, for providing eight reference voltages varied in size; Comparing section 3, as Fig. 4, arranges eight comparators (U1 to U8), is connected to reference section 4 summation current transformer 21 module 2, eight reference voltages and detection voltage is compared respectively, exports speed-regulating signal (S1 to S8) according to comparative result difference.Instruction unit 6 comprises the indicator lamp of the mouth being connected to eight comparators, described indicator lamp (D1 to D8), reminds using this current speed state according to indicator lamp quantity.
Speed adjusting module, is connected to load comparison module, receives speed-regulating signal, for carrying out speed governing to electrical motor.Frequency converter 1, as Fig. 1, for controlling electrical motor work; Speed governing portion 5, as Fig. 6, it arranges the mouth that eight input ends being all connected to load comparison module and are connected to frequency converter 1 speed governing pin, comprise eight switching valves (Q1 to Q8), the control pole of eight switching valves is parallel with a resistance respectively, eight resistance (RX0) resistances arrange difference and are arranged in series, and one end of its 8th resistance R80 is connected to adjustable resistance R5, and its connecting joint provide the speed electric V3 of frequency converter 1.
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 (6)
1. a lapper for load speed governing, comprises the portion of unreeling, slitting unit, winding portion and electrical motor, it is characterized in that: described electrical motor is connected with alignment circuit, and described alignment circuit comprises
Current transformer module, for detecting electrical motor input line electric current, and is converted into detection voltage by this current signal;
Load comparison module, is connected to current transformer module, sends speed-regulating signal according to detection voltage magnitude scope;
Speed adjusting module, is connected to load comparison module, receives speed-regulating signal, for carrying out speed governing to electrical motor.
2. the lapper of a kind of load speed governing according to claim 1, is characterized in that: described load comparison module also comprises instruction unit, uses this current speed state for reminding.
3. the lapper of a kind of load speed governing 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 test section; Described test section comprises the first resistance and the second resistance, and the node between described first resistance and the second resistance provides detection voltage.
4. the lapper of a kind of load speed governing according to claim 1, is characterized in that: described load comparison module also comprises
Reference section, for providing multiple reference voltage varied in size;
Comparing section, is connected to reference section summation current transformer module, multiple reference voltage and detection voltage is compared respectively, exports speed-regulating signal according to comparative result difference.
5. the lapper of a kind of load speed governing according to claim 3, is characterized in that: be also connected with low pass filtering section between described test section summation current transformer.
6. the lapper of a kind of load speed governing according to claim 1 or 2 or 3 or 4 or 5, is characterized in that: described speed adjusting module comprises
Frequency converter, for controlling electrical motor work;
Speed governing portion, its arrange multiple be all connected to load comparison module input end and a mouth being connected to frequency converter timing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269373.9U CN204702263U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper of load speed governing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269373.9U CN204702263U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper of load speed governing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204702263U true CN204702263U (en) | 2015-10-14 |
Family
ID=54281896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520269373.9U Expired - Fee Related CN204702263U (en) | 2015-04-29 | 2015-04-29 | A kind of lapper of load speed governing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204702263U (en) |
-
2015
- 2015-04-29 CN CN201520269373.9U patent/CN204702263U/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: 20151014 Termination date: 20160429 |