A kind of screening machine with ultrasonic sensing device
Technical field
The present apparatus belongs to the automatic detection device of screening machine, more particularly to a kind of ultrasonic wave sense for screening machine conveyer belt
Answer device.
Background technology
The automatic detection device of screening machine is to use image sensing apparatus currently on the market, above the conveyer belt of screening machine
One camera is installed, camera is connected to video frequency collection card, and video frequency collection card is inserted on computer, and camera is read by computer
Picture signal, when picture signal is changed, has been judged as article and has been put into, and computer will signal to screening machine, control peace
Inspection machine starts conveyer belt.This device has problems with:
1st, camera induction range is too wide, when screening machine door curtain is swung or someone passes through beside screening machine, can judge by accident
Into there is article to be put into, so as to start conveyer belt;
2nd, it is insensitive to transparent articles sensing, it can sense less than conveyer belt does not start when being put into transparent articles;
3rd, the video frequency collection card of specified model must be used, when changing the capture card of other models, upper computer software is entered
Row modification.
Utility model content
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art to have ultrasound there is provided one kind
The screening machine of ripple induction installation.
The technical scheme in the invention for solving the above technical problem is:A kind of peace with ultrasonic sensing device
Inspection machine, including:Equipment rack, interspersed conveyer belt, the industrial computer below conveyer belt and X in the middle part of equipment rack are penetrated
Through the input and output end of conveyer belt on line source and the signal acquiring system above conveyer belt, the equipment rack
Stainless steel lintel is respectively arranged with, ultrasonic sensing dress is provided between the stainless steel lintel and signal acquiring system of input
Put, the ultrasonic sensing device includes:Ultrasonic probe, ultrasonic wave control panel and the master board being connected with each other successively, institute
State ultrasonic probe to face the transmitting of conveyer belt input and receive ultrasonic wave, the ultrasonic wave control panel controls ultrasonic probe
Launch ultrasonic wave, and the signal received to ultrasonic probe is handled, ultrasonic wave control panel information is read in the master board
And determine whether that article is put into.
Preferably, the ultrasonic wave control panel and master board are arranged in mounting box, and the mounting box is installed
In the surface of conveyer belt.
Preferably, the master board is screwed on mounting box inner bottom surface.
Preferably, the ultrasonic probe is fixed on the stainless steel lintel of input with probe fixing bracket.
Preferably, the ultrasonic wave control panel is connected with row's pin with master board.
Preferably, the ultrasonic probe wire is connected with ultrasonic wave control panel.
Compared with prior art, the beneficial effects of the utility model are:The present apparatus uses the principle of ultrasonic ranging, has
Advantages below:
1st, induction range is small, will not be influenceed by periphery, when only having article on conveyer belt, can just start conveyer belt;
2nd, transparent articles, which are put on conveyer belt, to sense;
3rd, the present apparatus is provided with ultrasonic wave control panel and the master board of itself, being capable of automatic data collection ultrasonic signal and control
Conveyer belt processed, it is no longer necessary to which upper computer software is engaged.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, wherein:
Fig. 1 is the structural representation of the utility model preferred embodiment;
Fig. 2 is the mplifying structure schematic diagram of part A in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.In preferred embodiment
Cited such as " on ", " under ", "left", "right", only " centre " and " one " term, understanding for ease of narration, and be not used to
The enforceable scope of the utility model is limited, being altered or modified for its relativeness is changed under technology contents without essence, when also
It is considered as the enforceable category of the utility model.
Refer to Fig. 1, a kind of screening machine with ultrasonic sensing device of the utility model preferred embodiment design, its
Specifically include:Equipment rack 1, the interspersed conveyer belt 2 installed in the middle part of equipment rack 1, the industrial computer 3 located at the lower section of conveyer belt 2
The two ends of conveyer belt 2 are passed through on signal acquiring system 5 with x-ray source 4 and located at the top of conveyer belt 2, equipment rack 1, i.e.,
Input and output end are respectively arranged with stainless steel lintel 6, and innovative point of the present utility model is:In the upper position of conveyer belt 2
The side of signal acquiring system 5 is provided with ultrasonic sensing device 7.
Fig. 2 is referred to, ultrasonic sensing device 7 is main by ultrasonic probe 71, ultrasonic wave control panel 72 and master board
73 compositions, ultrasonic probe 71 is fixed on probe fixing bracket 74 on the stainless steel lintel 6 of the input of conveyer belt 2, ultrasonic wave control
Making sheet 72 and master board 73 are arranged in mounting box 75, and mounting box 75 is fixed on the surface of conveyer belt 2, and is adopted positioned at signal
Between collecting system 5 and stainless steel lintel 6.The wire 76 of ultrasonic probe 71 is connected with ultrasonic wave control panel 72, ultrasonic wave control
Plate 72 is connected with row's pin with master board 73, and master board 73 is screwed on the inner bottom surface of mounting box 75.Wherein ultrasonic wave
The effect of probe 71 is transmitting and receives ultrasonic wave;The effect of ultrasonic wave control panel 72 is that the control transmitting of ultrasonic probe 71 is super
Sound wave, and the signal of ultrasonic probe reception is handled;The effect of master board 73 is to read ultrasonic wave control panel 72
Information, and determine whether that article is put into, start transmission when having determined article and being put into, and stop after article transmission is completed
Only transmit.
Ultrasonic sensing device uses ultrasonic ranging principle, and ultrasonic probe sends ultrasonic wave, and ultrasonic wave is encountered
It can be returned after article, ultrasonic probe is received after return signal, ultrasonic wave control panel can be according to the time for sending and returning
Difference calculates ultrasonic probe and reads the information of ultrasonic wave control panel to the distance between article, master board is surveyed, and judges
Whether there is article to be put into.Ultrasonic probe is arranged on directly over conveyer belt, and when not having article on conveyer belt, what is now measured is
Ultrasonic probe is the distance between to conveyer belt;After having article to be put into, what is now measured is ultrasonic probe on conveyer belt
Article distance, distance diminishes, and master board has determined article and has been put into, and can control transmission tape starting transmission;Work as article
After the completion of transmission, what is measured is again distance of the ultrasonic probe to conveyer belt, and master board determines no article and is put into, and can control
Conveyer belt processed stops transmission.
It is described above, only it is preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, any those skilled in the art are not being departed from the range of technical solutions of the utility model, according to skill of the present utility model
Any brief introduction modification, equivalent variations and modification that art is substantially made to above example, still fall within the utility model technical side
In the range of case.