CN206122393U - Extrusion pie attitude on -line measuring device based on image recognition - Google Patents

Abstract

The utility model discloses an extrusion pie attitude on -line measuring device based on image recognition, including setting up industry CCD or CMOS camera, light source and the audible -visual annunciator in the extruder top, industry CCD or CMOS camera, light source and audible -visual annunciator are connected with the industrial computer jointly, and the industrial computer is connected with PLC, and PLC still is connected with operating panel. The utility model discloses whether extrusion pie attitude on -line measuring device based on image recognition carries out image acquisition through set up industry CCD or CMOS camera in aluminium bar crane or extruder top or side, carries out real -time on -line measuring analysis to the state information of extrusion cake according to the shape facility of aluminium bar, pressure ram, extrusion cake, place correctly through detecting accurate discernment extrusion cake. Adopt the device directly to judge aluminium bar, extrusion cake position and state information according to image information to can effectively avoid having now the unreliable problem of work that the method exists.

Description

Extruding cake state on-line detector based on image recognition

Technical field

This utility model is related to a kind of on-line measuring device, and in particular to a kind of extruding pie state based on image recognition exists Line detector.

Background technology

It is to carry out aluminium section bar processing using activity extruding cake mode still to have many extruders in each aluminium section bar plant at present.And Due to the inadvertent of workman cause extrude cake place it is improper directly extruded, cause device damage shut down stop production situation when There is generation.This problem annoyings each aluminium section bar plant always, also largely governs the normal production of extrusion process.

Once because there is such equipment fault, workshop will face following thorny problem：

(1) if extruding cake is counter puts, can directly contribute extrusion head pressed partially, pressure ram damage, need replacing pressure ram, tear open Under pressure ram need lathe to reprocess can to use；It is also possible to causing to expect gallbladder because extruding cake off normal extruding scratch material gallbladder inner bag Scrap.

(2) extruding cake traverse can cause pressure ram be retreated by alclad master cylinder in addition to it can cause above-mentioned consequence, also, very Mould be squished because of crush stroke overlength to meeting.

(3) pressure ram can be directly contributed when without extruding cake cannot be retreated by alclad master cylinder, it is also possible to squeeze because lacking cake of press Pressure master cylinder advance overtravel leads to not dismantle pressure ram, and needs for pressure ram and its base to cut rag and give up, when causing very long Between stopping production；And also easily cause to expect gallbladder mouth fillet or scratch material while pressure ram is exited material gallbladder using reverse extrusion Gallbladder inner bag, causes to expect that gallbladder is scrapped.

Once the above-mentioned situation of generation will all cause the long period to be shut down, stop production, also will result directly in pressure ram, material gallbladder etc. and match somebody with somebody The service life of part shortens, even scraps, and thus results in the soaring of maintenance cost.As can be seen here, it is automatically normal in extruder During cycle extrusion, to extruding cake, whether the automatic detection work of correct placement extruding is even more important.

It is existing to be detected to extruding cake by following several method：

A. the track that rolls in extruding cake adds travel switch to detect；Whether the detectable extruding cake of this measure passes through, but for rolling It is unknown on material supporting rack whether past extruding cake is correctly placed on.This method unreliable and the trip switch because of Jing not Rise and frequently tempered and the normal failures of Jing, damage by cake of press, fault rate is extra-high.

Pressure ram center is drilled to through hole by the characteristics of b. utilizing extruding head less at pressure ram center and protrude, and will be squeezed Pressure head is made a motion bar and is embedded in pressure ram, increases a back-moving spring and install a stroke in pressure ram base Switch.As extrusion head motion bar does not suffer oppression power during extruding cake correct placement normal extrusion, will not trigger in pressure ram base Travel switch can normal extrusion.Once extrude cake traverse, it is counter put or during off normal, when master cylinder advances, extrusion head motion bar is directly pushed up The travel switch in pressure ram base is triggered on extruding cake by external force pressure, makes master cylinder halt immediately.The method is very The problem is solved in big degree, it is also more effective.But as extrusion head motion bar is less, longer, it is easily bent, deforms and stretch Contracting underaction and fail；And travel switch is controlled in pressure ram base, because dismounting engineering is big and unfavorable after failure Change in maintenance, furthermore as pressure ram center is drilled to through hole, pressure ram becomes to be very easy to fracture, reduces pressure ram Service life.

C. using extruding head pressure ram center it is less and protrude, and extruding cake correct placement when aluminium bar, extruding cake, Pressure ram three is because closely coupled under external pressure effect；And extrude cake traverse, it is counter put or during off normal, because extruding what cake was raised Extrusion head withstands the characteristics of certain interval will occur between pressure ram.One is installed on the outside of extruder has dual range defeated Go out the infrared detector or self-reflection photoswitch of function, arrange between extrusion head and pressure ram are cylindrical one section effectively away from From.During so that there is gap because the improper extrusion head being raised of placement withstands between pressure ram in extruding cake, infrared detector Or the response output at once of self-reflection photoswitch, make master cylinder halt immediately.This method is simple, detection also more can have when normal What is imitated solves the above problems；But after extrusion head is using certain hour blackening, become with such detector after extinction effect Can fail because of detection signal failure, become unreliable.

D. correctness is placed using displacement difference detection method automatic detection extruding cake：When extrude cake correct placement when aluminium bar, Extruding cake, pressure ram three are because being closely coupled under external pressure effect.In this case, main frame extrudes every aluminium bar and completes In the upsetting of aluminium bar, the displaced position value of degassing, and material gallbladder, the loading of every aluminium bar is also identical, completes the action It is very small that signal occurs position numerical difference.And extrude cake traverse or it is counter put when, due to extruding the extrusion head that is raised of cake Withstand and will occur larger gap between pressure ram, and put honest during extruding cake correct placement compared with before during extruding cake less Slightly, the displaced position numerical value of degassing can all have larger, more obvious offset deviation, expect that the loading ratio in gallbladder can also be differed It is larger.Corresponding control program is done in PLC using this characteristic, carry out the action control to extruding cake detection work.The method And it is unreliable, because cannot ensure that every aluminium bar is all equal length in process of production, so as to cause reliability poor.

Utility model content

The purpose of this utility model is to provide a kind of extruding cake state on-line detector based on image recognition, and adopting should Device directly can judge aluminium bar, extruding cake position and status information according to image information such that it is able to be prevented effectively from existing The unreliable problem of work existing for technology.

The technical scheme adopted by this utility model is, based on the extruding cake state on-line detector of image recognition, wraps Include the industrial CCD or CMOS cameras, light source and audible-visual annunciator being arranged on above extruder, industrial CCD or CMOS cameras, light source Industrial computer is connected with jointly with audible-visual annunciator, industrial computer is connected with PLC, and PLC is also associated with guidance panel.

The characteristics of this utility model, also resides in,

Industrial CCD or CMOS cameras pass through network interface or USB interface, 1394 mouthfuls, image pick-up card and industrial computer connection.

Light source and audible-visual annunciator pass through relay and I/O boards respectively or I/O modules are connected with industrial computer.

Industrial computer passes through I/O boards or I/O modules and relay is connected with the I/O modules of PLC.

Industrial CCD or CMOS cameras are arranged on the top or side of aluminium bar crane or extruder pressure ram.

Industrial CCD or CMOS cameras are installed using regulative mode between contractive rod or fixed form.

Model FX3U-128M of PLC.

The model IPC610H industrial computer series of industrial computer or the embedded fan-free series of ARK2000.

The beneficial effects of the utility model are that extruding pie state on-line checking of this utility model based on image recognition is filled Put, by above aluminium bar crane or extruder or side arranges industrial CCD or CMOS cameras and carries out image acquisition, according to aluminum Rod, pressure ram, the shape facility of extruding cake carry out real-time online detection and analysis to the status information for extruding cake, accurate by detection Whether identification extruding cake is placed correctly.Using the device can directly according to image information judge aluminium bar, extruding cake position and Status information such that it is able to the unreliable problem of work being prevented effectively from existing for existing method.

Description of the drawings

Fig. 1 is structural representation of this utility model based on the extruding cake state on-line detector of image recognition.

In figure, 1. audible-visual annunciator, 2. light source, 3. industrial CCD or CMOS cameras, 4. industrial computer, 5.PLC, 6. operating surface Plate, 7. pressure ram, 8. extrudes cake, 9. aluminium bar.

Specific embodiment

With reference to the accompanying drawings and detailed description this utility model is described in detail.

Extruding cake state on-line detector of this utility model based on image recognition, structure is as shown in figure 1, including setting Above aluminium bar crane or extruder or the industrial CCD or CMOS cameras 3 of side, light source 2 and audible-visual annunciator 1, industrial CCD Or CMOS cameras 3, light source 2 and audible-visual annunciator 1 are connected with industrial computer 4 jointly, industrial computer 4 is connected with PLC5, and PLC5 is also connected with There is guidance panel 6.PLC5 is connected with extruder, is mainly used in controlling the start-stop and other actions of extruder.

Industrial CCD or CMOS cameras 3 pass through network interface or USB interface, 1394 mouthfuls, image pick-up card and industrial computer 4 connect.

Light source 2 and audible-visual annunciator 1 pass through relay and I/O boards respectively or I/O modules are connected with industrial computer 4.

Industrial computer 4 passes through I/O boards or I/O modules and relay is connected with the I/O modules of PLC5.

Industrial CCD or CMOS cameras 3 are arranged on the top or side of aluminium bar crane or extruder pressure ram 7.Industrial CCD Or CMOS cameras 3 are installed using regulative mode between contractive rod or fixed form.

PLC can be other producer's models PLC of the FX3U-128M of Rhizoma Sparganii and similar or other configurations.

Industrial computer can be grind China IPC610H industrial computers series, the embedded fan-frees of ARK2000 it is serial or similar and its Other producer's model industrial computers that it configures.

During use, when operator press liter material button by control panel 6, industrial computer 4 passes through I/O boards or I/O Module gets that the state change of the output node of PLC5 then starts industrial CCD or CMOS cameras 3 and light source 2 is continuously taken pictures Image information is obtained, now aluminium bar 9, the image information of extruding cake 8 are sticked into by network interface or USB interface, 1394 mouthfuls, image acquisition Enter industrial computer 4, effectively recognized by Image Information Processing, the status information to extruding cake 8 inside industrial computer 4, if It was found that 8 abnormal state of extruding cake then passes through I/O boards or I/O modules, relay export useful signal and carry out to audible-visual annunciator 1 Sound and light alarm and PLC5 control extruders are shut down.

In process of production, when cake correct placement is extruded, aluminium bar 9, extruding cake 8,7 three of pressure ram are closely coupled. This utility model device is in the top of aluminium bar crane or extruder pressure ram or 3 pairs, side mounting industrial CCD or CMOS camera Extruding cheese state carries out monitor in real time, and when operator press liter material button, industrial CCD or CMOS cameras 3 start in real time Collection aluminium bar, extruding cake, the image information of pressure ram three.The image information gathered through industrial CCD or CMOS cameras 3 is passed through Network interface or USB interface, 1394 mouthfuls, image pick-up card enter industrial computer 4, carry out intelligent knowledge to extruding pie state in industrial computer 4 Not：

(1) position of aluminium bar 9 and extruding cake 8 is automatically positioned according to the shape facility of aluminium bar；

(2) by the topography of extraction 9 apical position of aluminium bar, state recognition is carried out to extruding cake 8；

(3) detected by the edge direction characteristic to extruding 8 region of cake, judge the direction of extruding cake 8；

(4) by being identified with 9 direct gap of aluminium bar to extruding cake 8, judge to extrude whether cake 8 puts back.

If detecting extruding cake exception, 4 control signal of industrial computer is fed back to into PLC5 and stops extruder operation, people to be operated After member confirms that extruding cake 8 places correctly, extruder can continue to be automatically performed follow-up the whole series extruding action, reach reliable, effective Whether the correct placement of automatic detection extruding cake, so as to effectively prevent to place the improper adverse consequencess for causing because extruding cake.

Claims (8)

1. the extruding cake state on-line detector based on image recognition, it is characterised in that including being arranged on above extruder Industrial CCD or CMOS cameras (3), light source (2) and audible-visual annunciator (1), the industrial CCD or CMOS cameras (3), light source (2) Industrial computer (4) is connected with jointly with audible-visual annunciator (1), the industrial computer (4) is connected with PLC (5), and the PLC (5) is also connected with There is guidance panel (6).

2. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that described Industrial CCD or CMOS cameras (3) are by network interface or USB interface, 1394 mouthfuls, image pick-up card and industrial computer (4) connection.

3. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that described Light source (2) and audible-visual annunciator (1) pass through relay and I/O boards respectively or I/O modules are connected with industrial computer (4).

4. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that described Industrial computer (4) is connected with the I/O modules of PLC (5) by I/O boards or I/O modules and relay.

5. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that described Industrial CCD or CMOS cameras (3) are arranged on the top or side of aluminium bar crane or extruder pressure ram.

6. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that described Industrial CCD or CMOS cameras (3) are installed using regulative mode between contractive rod or fixed form.

7. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that PLC Model FX3U-128M.

8. the extruding cake state on-line detector based on image recognition according to claim 1, it is characterised in that industry control The model IPC610H industrial computer series of machine or the embedded fan-free series of ARK2000.