A kind of automatic detection conveys the device of blockage
Technical field
The dress of blockage is conveyed the present invention relates to a kind of device for detecting tube blockage, more particularly to a kind of automatic detection
Put.
Background technology
Traditionally, when conveying material with pipe, because easily there is quilt when wearing and tearing, being extruded or be bent in delivery pipe
The object of conveying is blocked in inside delivery pipe, especially under the occasion of long distance delivery object, is occurred inside delivery pipe
It is difficult that whether conveying blockage occurs wherein and occur for investigation blocking during blocking;It is at home and external, automatic locking screw machine
Screw or nut are conveyed using pipe, chemical industry conveys little particle object using pipe, the hand-held that I once researched and developed
Automatic tie tool is also to convey band using square-section pipe, and above-mentioned automatic locking screw machine or automatic tie tool are all
It is to work automatically at high frequencies, is blocked in once there is an object conveyed in delivery pipe without finding in time simultaneously
Processing, does not still stop feeding in time, is just easy to more serious a chain of blocking occur, ultimately results in delivery pipe and scrap and want
It is forced to shut down handling failure, the utilization based on delivery pipe feeding, it is desirable to have one automatic and the blockage of detection conveying immediately
Device and energy automatic feedback electric signal and/or visual signal, I is based on a kind of automatic detection delivery pipe of this Demand Design
The device of blocking.
The content of the invention
The invention aims to solve with pipe convey material when because delivery pipe easily occurs blocking and can not and
When the problem of be found, be especially that automatic tie tool or automatic locking screw machine are set in the utilization of conveying band or screw
The instant discovery of meter and a kind of device of automatic detection conveying blockage of immediate feedback signal.
The present invention is achieved through the following technical solutions:A kind of automatic detection conveys the device of blockage, including pressure
Force snesor, delivery pipe, valve, valve seat, control processor, also related parts:Automatic tie tool, band pusher
Base;Its working method and structural principle are:The pressure sensor is electrically connected with the control processor, the band pusher
Base, the valve, the valve seat and the delivery pipe couple in order, the band pusher base and the valve seat and
The delivery pipe has a passage, and the passage is to allow band to enter the delivery pipe, in the valve or the valve seat
On open aperture and introduce compressed air, the pressure sensitive head of the pressure sensor and the compressed air UNICOM of introducing, it is described
Valve is opened, and band is pushed into the delivery pipe and crosses valve location, and the valve is closed, and the compressed air of access is by band
Promoted in the delivery pipe, the port of export of the inside feed pipe of the automatic tie tool is pushed to always, band is in conveying
During being transmitted in pipe, if do not blocked, air pressure in delivery pipe can than relatively low, if band be plugged it is motionless or
Person slowly moves, this section of passage the position that i.e. compressed air is introduced at the position being plugged from band to the valve
Interior air pressure can steeply rise, and the pressure sensor is calibrated by the situation without blocking and sets a baroswitch value,
The air pressure that the pressure sensor is sensed when not blocking be below switch value, when blocking, the pressure sensing
Device can detect the atmospheric pressure value higher than switch value, when detecting higher than set switch value air pressure, the pressure sensor meeting
Electric signal is exported to the control processor, allows the control processor to stop feeding and input compressed air by the band of blocking
Blowout, whether the compressed air that the pressure sensor can detect input successfully blows out the band of blocking, if at blowout
Manage successfully, the pressure sensor can measure the low pressure value less than set switch value, the control processor is opened automatically
Movement machine works on, if blowout processing is unsuccessful, the pressure sensor still can detect the air pressure higher than switch value,
And send electric signal and inform the control processor ----block and still exist.
The pressure sensor is that air pressure signal can be converted to electric signal and can be electrically connected with external circuit, the pressure
Sensor is directly installed on the valve seat by nipple, or the pressure sensitive head of the pressure sensor is passed through
Pipeline is sealingly connected with the aperture on the valve seat or the aperture on the valve, and the pressure sensor can be directly displayed
Pressure value in the measured delivery pipe;The inner hole section of the delivery pipe should be consistent with the shape of transported object,
For common band or nut, the inner hole section of delivery pipe is rectangle, for screw, and the inner hole section of delivery pipe is circle,
For the integral type mount cable-tie of automobile, because the head cross sectional shape of integral type mount cable-tie is different, the endoporus of delivery pipe is cut
Face is the profiling in integral type mount cable-tie head section;The valve can be driven, and that realizes valve opens and closes function;
The band pusher base has a passage, allows band to pass through, and the valve seat has a passage, the passage of the valve seat
Two ends be connected respectively with the delivery pipe and the band pusher base, by the logical of the valve seat when valve is closed
Opening a hole on one end closing in road, the valve or the valve seat allows compressed air to enter;The control processor is
Programmable controller or single-chip microcomputer or computer or microchip.
The beneficial effects of the present invention are:
1st, the utilization for delivery pipe feeding detects the device for conveying blockage there is provided one;
2nd, further, it is that the utilization of delivery pipe feeding automatically detects the device of conveying blockage there is provided one, and can be automatic
Feed back electric signal and/or visual signal;
3rd, the reliability of automatic conveying equipment is greatly improved;
4th, for automatic tie tool or automatic locking screw machine, automatic detection and band or screw are automatically processed block, be
Functionally increase " automatic correct is deviateed " function in equipment automatization, plus certain " intelligence " in automation equipment.
【Brief description of the drawings】
Fig. 1 is a kind of top view, A-A partial sectional view of the device of automatic detection conveying blockage;
Fig. 2 is a kind of left view of the device of automatic detection conveying blockage;
Fig. 3 is the B partial enlarged drawings in corresponding diagram 1, and valve is in open mode;
Fig. 4 is the connecting relation of the C-C sectional views amplification of corresponding diagram 2, display pressure sensor and valve seat;
Reference:1st, automatic tie tool;2nd, inner duct;3rd, delivery pipe;4th, band;5th, valve seat;
6th, valve;7th, pressure sensor;8th, band pusher base;9th, control processor.
【Embodiment】
Below in conjunction with the accompanying drawings and embodiment is described further to the present invention.
Embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of automatic detection conveys the device of blockage, including:Pressure sensor 7,
Delivery pipe 3, valve 6, valve seat 5, control processor 9, also related parts:Automatic tie tool 1, band pusher base
8th, inner duct 2, band 4;The pressure sensor 7 is electrically connected with the control processor 9, the band pusher base 8,
Valve 6, valve seat 5, delivery pipe 3, automatic tie tool 1 couple in order, and the valve seat 5 has a passage, the valve
The two ends of the passage of seat 5 are connected and the delivery pipe 3 is connected with the band pusher base 8 respectively, the valve 6 close to
Installed in one end of the passage of the valve seat 5, the band pusher base 8 also has a passage, the band pusher base 8
Passage alignd with the passage of the valve seat 5, the valve 6 opens, band 4 by the band pusher base 8 passage
It is pushed into the passage of valve seat 5 and across the position of the valve 6, the valve 6 is closed, the control of control processor 9 pressure
Contracting air enters the passage of the valve seat and pushes band 4 to the automatic tie tool 1, if band 4 is in the conveying
Run smooth in pipe 3 and the inner duct 2, the pressure sensor 7 measures a low pressure value;Do not blocking
In the case of be the pressure sensor 7 setting one switch value i.e. threshold value, in order to improve the reliability of measurement, described in this
Switch value is than without the high 3%-10% of low pressure value measured by pressure sensor when blocking, the switch value described in this answers root
In leakage and the band 4 and the delivery pipe 3 according to the length and valve 6 of the delivery pipe 3 with the connection place of valve seat 5
The composite factors such as the leakage of wall are adjusted, if band 4 in the passage of the valve seat 5 or the delivery pipe 3 in or
Optional position in inner duct 2 is blocked, can cause from blocked position to the valve seat 5 with the valve 6
The intracavitary air pressure of this section of junction passage is drastically raised, and far above set switch value;The pressure sensor 7 can be certainly
It is dynamic to contrast the atmospheric pressure value measured with set switch value, if measured atmospheric pressure value is less than set switch value, institute
Measured atmospheric pressure value but not output electric signal can be shown by stating pressure sensor, if measured atmospheric pressure value is higher than set
Switch value, the pressure sensor can show measured atmospheric pressure value and while exporting electric signal, and the control processor 9 is received
Hyperbar electric signal just can determine that band 4 is trapped in the valve seat 5 or in delivery pipe 3 or in inner duct 2, institute
Control processor 9 is stated soon to stop feeding and act and be introduced back into compressed air to blow out blocked band 4;Drawing again
During entering the compressed air blowout blocked band 4, the pressure sensor 7 can also measure the valve seat 5
The intracavitary air pressure of passage, if the air pressure measured by the pressure sensor 7 is less than set switch value, the pressure is passed
Sensor 7 does not export electric signal, and the control processor 9 just can determine that blocked band 4 has been blown;If the pressure
Atmospheric pressure value measured by sensor 7 is higher than set switch value, and the pressure sensor 7 can export electric signal again, described
Control processor 9 just can determine that blocked band 4 is not blown, and automatically process blocking failure, the control processor 9 is just
Control machine is out of service and sends blockage alarm requirement manual intervention.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.Although in addition, this specification
In used some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.