Utility model content
In view of the deficiencies of the prior art, the utility model proposes a kind of air pressure cotton box control applied to nonwoven industry
Device, it can not only improve the control performance of air pressure cotton box, and have the characteristics that low cost and manual operation are simple.
The technical scheme in the invention for solving the technical problem is:
A kind of air pressure cotton box control device applied to nonwoven industry that the utility model embodiment provides, the air pressure
Hopper includes upper cotton storehouse and lower cotton storehouse, and the junction in upper cotton storehouse and lower cotton storehouse is provided with air pressure cotton box hired roughneck roller motor and air pressure
Hopper feeds motor, and air pressure cotton box air blower of compensating is provided with lower cotton storehouse, is provided with lower cotton storehouse exit and feeds cotton machine feeding
Motor, the control device include upper photoelectric sensor, middle photoelectric sensor, lower photoelectric sensor, Pressure Switch Sensor and
Control circuit, the upper photoelectric sensor are arranged in cotton storehouse, and the middle photoelectric sensor is arranged in lower cotton storehouse, under described
Photoelectric sensor is arranged on the lower section of middle photoelectric sensor in lower cotton storehouse, and the Pressure Switch Sensor is arranged in lower cotton storehouse,
Upper photoelectric sensor, middle photoelectric sensor, lower photoelectric sensor and the Pressure Switch Sensor respectively with control circuit
Input terminal is connected, the output control terminal of the control circuit respectively with air pressure cotton box hired roughneck roller motor, air pressure cotton box feeding motor,
Air pressure cotton box air blower of compensating is connected with the control terminal for feeding cotton machine feeding motor.
As a kind of possible implementation of the present embodiment, the upper photoelectric sensor, middle photoelectric sensor and lower light
Electric transducer is using contactless normally opened NPN type to penetrating photoelectric sensor.
As a kind of possible implementation of the present embodiment, the upper photoelectric sensor, middle photoelectric sensor and lower photoelectricity
The power supply of sensor uses AC220V power supplys.
As a kind of possible implementation of the present embodiment, the Pressure Switch Sensor is NPN pressure switches open in usual
Sensor.
As a kind of possible implementation of the present embodiment, the Pressure Switch Sensor includes housing, air inlet, film
Box, guide rod, stationary contact and movable contact, the case top are provided with air inlet, and it is close that the bellows is arranged on top in housing
At air inlet, the upper end of the guide rod is connected with bellows bottom, and lower end is connected with movable contact, and the stationary contact is arranged on movable contact
Stroke route on.
As a kind of possible implementation of the present embodiment, the control circuit includes the first relay KA4, the second relay
Device KT2, the 3rd relay KA2 and the 4th relay KT 1, the first relay KA4 are connected on the output of photoelectric sensor
In circuit, the start and stop of cotton machine feeding motor are fed for controlling;The second relay KT2 is connected on the output of middle photoelectric sensor
In circuit, rotating speed and its work of stopping for control pressure hopper feeding motor;The 3rd relay KA2 is in lower photoelectric transfer
In the output loop of sensor, the rotating speed of cotton machine feeding motor is fed for controlling;The 4th relay KT1 is connected on pressure switch
In the output loop of sensor, it is stopped for control pressure hopper.
As a kind of possible implementation of the present embodiment, the control circuit is arranged on what is be connected with the air pressure cotton box
In the control device of carding machine.
The technical solution of the utility model embodiment can have the advantage that as follows:
The utility model embodiment technical solution includes the photoelectric sensor of upper, middle and lower three and Pressure Switch Sensor, profit
It is controlled with photoelectric sensor and feeds cotton machine feeding start and stop, the rotating speed of middle photoelectric sensor control pressure hopper feeding roller, just
Often be high rotating speed during operation, when alarm is changed to the slow-speed of revolution, continues for some time, still suffers from this alarm, stops hello cotton;Lower photoelectric transfer
Sensor is wants cotton signal, and hello cotton machine is equipped with multistage speed control, and when photoelectric sensor triggers instantly, hello cotton machine is changed to High-speed Control,
Increase cotton feeding amount;When pressure is too high or too low in babinet, Pressure Switch Sensor triggering alarm signal, air pressure cotton out of service
Case.The cotton feeding amount of road carding machine is sufficient after can accurately ensureing and detects and does not press cotton not block up cotton inside hopper, and covert adjust is fed
Enter speed.In addition can also according to air pressure size in babinet, judge hired roughneck's roller around cotton situation.
Compared to tachogenerator is added, the utility model embodiment technical solution one is the reduction of main control unit cost, and two
It is that can reach client's use demand, meets around cotton actuation of an alarm, third, detecting more accurately, tachogenerator is detected around cotton,
Have more around cotton, and on the premise of being had an impact to hired roughneck's roller, could trigger action;Pressure alarm, is deposited in upper box cotton net
Storage, which reaches a certain level, will trigger actuation of an alarm, can easily manually clear up around cotton.
The utility model is easy to operate, and control is accurate, and cotton above and below air pressure cotton box is accurately detected by three groups of photoelectric sensors
Cotton amount is deposited in storehouse, while provides corresponding control again to meet to continue permanent hello cotton situation.Switching value pressure switch is added to pass
Sensor, can detect stifled cotton situation in real time.
Embodiment
In order to clarify the technical characteristics of the invention, below by embodiment, and its attached drawing is combined, to this reality
It is described in detail with new.Following disclosure provides many different embodiments or example is used for realizing the utility model
Different structure.In order to simplify the disclosure of the utility model, hereinafter the component and setting of specific examples are described.In addition,
The utility model can in different examples repeat reference numerals and/or letter.This repetition is to simplify and clear mesh
, the relation between itself not indicating discussed various embodiments and/or setting.It is it should be noted that illustrated in the accompanying drawings
Component is not drawn necessarily to scale.The utility model eliminates description to known assemblies and treatment technology and process to avoid not
Necessarily limit the utility model.
Fig. 1 is a kind of structural representation of the cover door apparatus for controlling of lifting of carding machine according to an exemplary embodiment
Figure, Fig. 2 is the left view of Fig. 1.As depicted in figs. 1 and 2, a kind of air pressure cotton box control applied to nonwoven industry of the present embodiment
Device processed, the air pressure cotton box include upper cotton storehouse 1 and lower cotton storehouse 2, the junction in upper cotton storehouse 1 and lower cotton storehouse 2 are provided with air pressure
Hopper hired roughneck roller motor 3 and air pressure cotton box feeding motor 4, are provided with air pressure cotton box air blower of compensating 5, in lower cotton in lower cotton storehouse 2
2 exit of storehouse be provided with feed cotton machine feeding motor 6, the control device include upper photoelectric sensor 7, middle photoelectric sensor 8, under
Photoelectric sensor 9, Pressure Switch Sensor 10 and control circuit, the upper photoelectric sensor 7 is arranged in cotton storehouse 1, described
Middle photoelectric sensor 8 is arranged in lower cotton storehouse 2, and the lower photoelectric sensor 9 is arranged on middle photoelectric sensor 8 in lower cotton storehouse 2
Lower section, the Pressure Switch Sensor 10 are arranged in lower cotton storehouse 2, the upper photoelectric sensor 7, middle photoelectric sensor 8, under
Photoelectric sensor 9 and Pressure Switch Sensor 10 are connected with the input terminal of control circuit respectively, the output control of the control circuit
End processed is fed with air pressure cotton box hired roughneck roller motor 3, air pressure cotton box feeding motor 4, air pressure cotton box air blower of compensating 5 and hello cotton machine respectively
The control terminal of motor 6 is connected.
Fig. 3 is upper photoelectric sensor, middle photoelectric sensor and the lower photoelectric sensor according to an exemplary embodiment
Structure diagram;Fig. 4 is the circuit diagram of photoelectric sensor shown in Fig. 3.As shown in Figure 3 and Figure 4, in a kind of possible reality
In existing mode, upper photoelectric sensor 7, middle photoelectric sensor 8 and lower photoelectric sensor 9 described in the present embodiment are using non-contact
The normally opened NPN type of formula to penetrating photoelectric sensor, wherein, a1 be photoelectric sensor transmitter, a2 be photoelectric sensor receiver,
And the power supply of photoelectric sensor uses AC220V power supplys.
In a kind of possible implementation, the Pressure Switch Sensor 10 is NPN Pressure Switch Sensors open in usual,
, can closed action when hypertonia or too low.
Fig. 5 is a kind of structure diagram of Pressure Switch Sensor according to an exemplary embodiment, such as Fig. 5 institutes
Show, in a kind of possible implementation, Pressure Switch Sensor 10 described in the present embodiment include housing 101, air inlet 102,
Bellows 103, guide rod 104, stationary contact 105 and movable contact 106, the top of housing 101 are provided with air inlet 102, the bellows
103 are arranged on top in housing 101, and at air inlet 102, the upper end of the guide rod 104 is connected with 103 bottom of bellows, under
End is connected with movable contact 106, and the stationary contact 105 is arranged on the stroke route of movable contact 106.Gas enters from air inlet,
Bellows is impacted, as air pressure is higher, then bellows is downwardly projecting to a certain degree, makes end in contact under movable contact and stationary contact, and two
A lead-out terminal conducting;As air pressure is relatively low, then bellows is protruding upward, to a certain degree, makes movable contact and stationary contact upper-end contact, and two
A lead-out terminal conducting.Movable contact and stationary contact can be customized according to being actually needed in which kind of degree contact, such as standard atmospheric pressure
For 1Kpa, pressure sensor normal work is 0.985~1.2Kpa, beyond this range, pressure sensor then trigger action.
Fig. 7 is the circuit signal of control circuit in a kind of air pressure cotton box control device according to an exemplary embodiment
Figure.As shown in fig. 7, in a kind of possible implementation, the control circuit includes the first relay KA4, the second relay
KT2, the 3rd relay KA2 and the 4th relay KT1, the output that the first relay KA4 is connected on photoelectric sensor are returned
Lu Zhong, the start and stop of cotton machine feeding motor are fed for controlling;The second relay KT2 is connected on the output of middle photoelectric sensor
In circuit, rotating speed and its work of stopping for control pressure hopper feeding motor;The 3rd relay KA2 is in lower photoelectric transfer
In the output loop of sensor, the rotating speed of cotton machine feeding motor is fed for controlling;The 4th relay KT1 is connected on pressure switch
In the output loop of sensor, it is stopped for control pressure hopper.
In a kind of possible implementation, the control circuit is arranged on the carding machine that is connected with the air pressure cotton box
In control device, the alarm signal of Pressure Switch Sensor can be connected in the electric control gear of carding machine by cable, into
Row is uniformly controlled.
In addition, the utility model embodiment technical solution can also be set on air pressure cotton box operation panel operation button and
(for button to start and stopping, indicator light is to start (press key lamp), stop (press key lamp), feeding and power supply instruction to corresponding indicator light
Lamp), can be by operating the action of setting key control hopper and checking the real-time status of hopper.In addition can by frequency converter knob,
Change frequency conversion output speed.
Fig. 6 is a kind of control flow chart of air pressure cotton box according to an exemplary embodiment.As shown in fig. 6, this reality
The course of work for applying example is:In non-woven air pressure cotton box production process, to meet postorder carding machine uniform cotton feeding amount for a long time
It is required that rationally set air pressure cotton box can be according to actual conditions adjust automatically in babinet into cotton speed, its charging rate.Specifically such as
Under, during air pressure cotton box normal operation, lower photoelectric sensor closure, upper, middle photoelectric sensor is opened, and Pressure Switch Sensor is in
Normal condition, feeding roller, hired roughneck's roller and the orderly operating of outlet roller, corresponding frequency converter RUN and COM signal conductions, to frequency converter
Run signal.After when upper cotton storehouse, material stock reaches upper limit, upper photoelectric sensor closure, feeds the frequency converter RUN that cotton machine feeds motor
Disconnected with COM signals, feed cotton machine feeding and stop;Instantly after cotton storehouse material stock reaches upper limit, upper photoelectric sensor closure, air pressure cotton
Case feeds frequency converter X1, RUN and COM signal conduction of motor, feeds low-speed running signal, and feed quantity reduces, and continues 5S and still locates
Closure state, frequency converter RUN and COM signal disconnect, and give frequency converter stop signal, and feeding stops;Expect face to face up to after lower limit,
Lower photoelectric sensor is opened, and feeds frequency converter X1 and the COM signal conduction of cotton machine feeding motor, feeding cotton machine signal for faster, accelerates
Into cotton amount;Pressure Switch Sensor is located at air pressure cotton box babinet middle position, due to cotton material accumulated plugging, nowel above babinet
Know from experience the negative pressure caused by wind turbine suction, on the one hand can pull power downwards to blocking fabric generation, accelerate cotton material and fall, work as in terms of another
When negative pressure reaches 0.9Kpa, triggering pressure sensor action, manually solves the problems, such as around cotton;When babinet lower section is due to the accumulation of cotton material
Block, lower box can caused by wind turbine blowing force positive pressure, on the one hand can produce to blocking fabric and push down on towing force, accelerate under cotton material
Fall, when positive pressure reaches 1.2Kpa, triggering pressure sensor action, manually solves the problems, such as around cotton another aspect.In addition, air pressure cotton box
The frequency converter of hired roughneck's roller motor is furnished with knob frequency modulation, can adjust feeding speed according to actual conditions.
It is higher than running well to feed the fast frequency of X1 sections of cotton machine, for example normal operating frequency is 30Hz, X1 sections of fast frequencies are set to
40Hz;The fast frequency of the X1 sections of air pressure cotton box feeding roller is lower than running well, for example normal operating frequency is 25Hz, X1 sections of speed frequencies
It is set to 15Hz.COM signals take 24V or 12V power supplys built in frequency converter, because relay only provides the signal that is turned on or off.
During the work time, when cotton is deposited in upper cotton storehouse triggers upper photoelectric sensor, which feeds cotton machine feeding
To slow down, such process continues 5S, will feed cotton machine feeding and stops, after the alarm of upper photoelectric sensor eliminates, restarting;Instantly cotton
When storehouse deposits cotton and triggers middle photoelectric sensor, air pressure cotton box feeding decelerating through motor, after this process continues 5S, air pressure cotton box is fed
Stop with cotton machine feeding is fed, after the alarm of upper photoelectric sensor eliminates, restarting;Instantly cotton storehouse, which lacks cotton, makes lower photoelectric sensor
During triggering, the feeding for feeding cotton machine accelerates;Instantly cotton is blocked up in cotton storehouse because of lower section causes pressure rise in cotton storehouse, triggering pressure switch sensing
Device, shuts down air pressure cotton box immediately, and gives carding machine stopping signal, artificial treatment plug cotton;Instantly cotton storehouse is blocked up cotton because of top and is led
Cause pressure in cotton storehouse to reduce, trigger Pressure Switch Sensor, shut down air pressure cotton box immediately, and give carding machine stopping signal,
Artificial treatment plug cotton.
Compared with prior art, the utility model embodiment technical solution has the characteristics that:
1st, the output speed of air pressure cotton box is adjusted, the feeding of road carding machine is uniform after meeting by adjusting hopper feed quantity,
Three kinds of manner of execution when cotton is blocked up in case carry out control cabinet memory cotton amount.
2nd, there are two kinds of detection devices, first, three photoelectric sensors of upper, middle and lower, ensure that hopper memory cotton abundance, do not press
Cotton;When cotton is blocked up second, Pressure Switch Sensor, in case, alarm parking, artificial treatment.
3rd, when upper photoelectric sensor stops feeding for shelves, the feeding of hello cotton machine;Photoelectric sensor is kept off in the middle, is feeding first
Roller is delayed reduction of speed, and during still in stifled cotton, feeding roller stops feeding cotton, when stifled cotton causes that pressure reaches setting value in case, alarm parking,
Notify artificial treatment;During lower photoelectric sensor conducting, represent that case memory cotton amount is very few, can not meet uniformly output and require, send
Signal, improves the feeding speed for feeding cotton machine.
The above is the preferred embodiment of the utility model, is come for those skilled in the art
Say, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also by
It is considered as the scope of protection of the utility model.