Internal pressure tester of lighter
Technical field
The invention belongs to the lighter testing instruments technical field, particularly a kind of internal pressure tester of lighter.
Background technology
Lighter brings great convenience for our daily life, but there are many potential safety hazards in lighter in the practical application, needs through strict sample testing.Wherein pressing detection in the lighter is an important content.
At present, pressure detection method still is manual testing's method in the lighter, inflate in lighter after putting into the lighter sample in the water by the staff exactly, whether the number of bubbles and the size that have bubble to emerge, emerge by the visual inspection lighter in gas replenishment process determine whether the interior pressure of lighter reaches standard.In the process of lighter inflation, the speed that the aperture of opening air valve is promptly boosted to the lighter inflation is entirely with staff's sensation.Such detection method and checkout equipment not only detect loaded down with trivial details, and exist more human factor to cause the accuracy of its detection not high, and the rate of rise is uncontrollable, and the concrete value of boosting also can't read.
Summary of the invention
The present invention is directed to and press checkout equipment to have above-mentioned problem in the existing lighter, a kind of internal pressure tester of lighter is provided, simplifying the operation, to improve the accuracy of detection, and be used for the may command rate of rise and read the value of boosting in real time.
The present invention realizes by following technical proposal: a kind of internal pressure tester of lighter, comprise frame, it is characterized in that, in frame, be provided with the lighter clamping device, operating control device and inflation mechanism, described clamping device top is provided with charging connector, this charging connector links to each other with inflation mechanism by wireway, on frame, be provided with and drive the clamping cylinder that charging connector moves up and down, between charging connector and inflation mechanism, be connected with and detect lighter inner chamber atmospheric pressure value and this atmospheric pressure value is become the pressure unit that signal sends operating control device to, above-mentioned inflation mechanism, clamping device and clamping cylinder are controlled by operating control device.
Operating control device of the present invention is a general device, comprises guidance panel, display panel and inner control system.On operating control device, set various parameters, start internal pressure tester, under the effect of operating control device, clamping device clamps the lighter sample, charging connector is driven by clamping cylinder, it is pressed onto on the lighter sample, inflation mechanism is inflated in lighter by charging connector, in gas replenishment process, pressure unit changes the force value in the lighter into control system that signal sends operating control device to, control system obtains regulating the inflation mechanism aeration speed behind the signal, when the rate of rise in lighter reaches the rate of rise of setting or maximal value, stop to inflate in lighter, the pressure of measuring again after waiting for a period of time in the lighter changes, and is judged and be presented at by control system on the display panel of operating control device.
In above-mentioned internal pressure tester of lighter, described inflation mechanism comprises high-pressure air source and flow control valve, between the inlet end of high-pressure air source and flow control valve, be connected with first solenoid valve, be connected by second solenoid valve between the outlet side of flow control valve and the inlet end of above-mentioned pressure unit, the circuit part of flow control valve is connected on the operating control device.When needing inflation, open first solenoid valve and second solenoid valve, air pressure is carried in the gas circuit conducting in lighter, and the signal that control system is come according to conveying, the aperture of control flow control valve is regulated pressure rises speed.
In above-mentioned internal pressure tester of lighter, first outlet side of described pressure unit is connected with above-mentioned charging connector by the 3rd solenoid valve, and second outlet side of described pressure unit is connected with gas outlet, and the 4th solenoid valve is set on gas outlet.When inflating, the 3rd solenoid valve need be opened, and the 4th solenoid valve need cut out.It is in order to regulate correction to pressure unit, flow control valve and high-pressure air source before test, to improve the precision that next step interior pressure of carrying out detects, also providing safety assurance for gas circuit in addition that the 3rd solenoid valve, gas outlet and the 4th solenoid valve are set.
In above-mentioned internal pressure tester of lighter, described charging connector comprises the connector that sets out pore and the rubber seal head of air hole is set, the connector sidepiece has the side opening that joins with above-mentioned wireway, described side opening is communicated with venthole, and the rubber seal head is plugged in the venthole of above-mentioned connector.The rubber seal head has the characteristic of elastic deformation, makes the lighter of multiple shape all can become sealing with the rubber seal capitiform, does not have gas leakage, and the scope of application is big.
In above-mentioned internal pressure tester of lighter, the aperture of described air hole is greater than the aperture of venthole, and in the port of air hole enlarging is set.The enlarging of rubber seal head can increase the area of giving vent to anger, and the difficulty that makes charging connector let drive at the lighter air-filled pore reduces, and can make things convenient for detection person to regulate the position of lighter and charging connector.
In above-mentioned internal pressure tester of lighter, described clamping device comprises gas pawl, horizontal supporting plate and vertical supporting plate, vertical supporting plate is connected on the frame by vertical line slideway, horizontal supporting plate is connected on the vertical supporting plate by horizontal line slideway, above-mentioned gas pawl is fixed on the vertical supporting plate, elastic reset mechanism and left and right adjusting knob are set, affixed elastic reset mechanism of difference and front and back adjusting knob on the frame of vertical supporting plate both sides respectively on the vertical supporting plate of horizontal supporting plate both sides.Reset by the elastic mechanism, front and back adjusting knob and left and right adjusting knob and come to move horizontal supporting plate, vertical supporting plate respectively, be used to regulate the relative position of gas pawl and charging connector.
Adopt a kind of detection method of above-mentioned internal pressure tester of lighter, it is characterized in that, this method comprises the steps:
A, preparation sample: extract the lighter sample, and leave the through hole that is communicated with inner chamber in a side of lighter sample;
B, put into sample: the lighter sample that the side is had a through hole is put into above-mentioned gas pawl and is clamped, by front and back adjusting knob and left and right adjusting knob with the through hole on the lighter sample adjust to charging connector under;
C, test sample: on operating control device, set parameter, operating control device is control the 4th closed electromagnetic valve automatically, other solenoid valves are opened, and charging connector and lighter are formed sealing by clamping cylinder, inflate in the lighter sample by inflation mechanism control charging connector, when reaching setting value, pressure rises speed closes first solenoid valve and second solenoid valve makes system's pressurize, after the time of setting, gather force value then, whether in allowed limits to judge the pressure leakage amount by operating control device, if surpass then this lighter sample is defective, operating control device sends warning;
D, finish detection: after test finished, operating control device was controlled the 4th solenoid valve and is opened pressure release, and clamping cylinder resets, and the gas pawl unclamps lighter, took out the lighter specimen, detected next time.
Compared with prior art, this internal pressure tester of lighter has following advantage:
1, the present invention adopts the clamping device lighter to clamp, and by clamping cylinder charging connector and lighter sample is formed soft seal, reduces the multiple interference of human factor, makes the condition of every sample detection identical, and error reduces.Adopt electronic control mode simultaneously, detect judgement automatically by the signal of pressure unit detection and the program of setting, simple to operate, detect step and simplify, and accuracy improves.
2, the setting of the force value in the system, rate of rise value and various parameters all can read on operating control device and set, and is convenient to reviewer's monitoring and detection in real time, and control is convenient.
3, adopt the detection method of above-mentioned internal pressure tester of lighter, need not to put into water and observe, operating personnel only need the lighter sample is put in the gas pawl, but the setup parameter value is start detection just, the process of its detection is finished automatically by control system entirely, and accuracy of detection and accuracy height are simple to operate.
Description of drawings
Fig. 1 is the perspective view of this internal pressure tester of lighter.
Fig. 2 is the amplification perspective view of clamping device part in this internal pressure tester of lighter.
Fig. 3 faces structural representation among Fig. 2.
Fig. 4 is the amplification perspective view of inflation mechanism part in this internal pressure tester of lighter.
Fig. 5 is the process flow diagram that adopts this internal pressure tester of lighter detection method.
Among the figure, 1, frame; 2, clamping device; 21, gas pawl; 22, horizontal supporting plate; 23, horizontal line slideway; 24, vertical supporting plate; 25, vertical line slideway; 26, elastic reset mechanism; 261, pedestal; 262, guide rod; 263, spring; 27, front and back adjusting knob; 28, left and right adjusting knob; 3, operating control device; 4, clamping cylinder; 5, charging connector; 51, connector; 52, rubber seal head; 53, venthole; 54, air hole; 55, side opening; 56, enlarging; 57, chamfering; 6, inflation mechanism; 7, pressure unit; 8, high-pressure air source; 9, flow control valve; 10, first solenoid valve; 11, second solenoid valve; 12, the 3rd solenoid valve; 13, gas outlet; 14, the 4th solenoid valve; 15, ball-joint web member; 16, support; Wireway 17.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, internal pressure tester of lighter, comprise frame 1, frame 1 is divided into two-layer up and down, in the upper strata of frame 1, be provided with lighter clamping device 2 and operating control device 3, operating control device 3 adopts touch-screen, the lower floor of frame 1 is provided with inflation mechanism 6, clamping device 2 tops are provided with the charging connector 5 that is connected with clamping cylinder 4, clamping cylinder 4 is fixed on the frame 1, charging connector 5 is connected with inflation mechanism 6 by wireway 17, be connected with between charging connector 5 and the inflation mechanism 6 and detect lighter inner chamber atmospheric pressure value and this atmospheric pressure value is become the pressure unit 7 that signal sends operating control device 3 to, inflation mechanism 6, clamping device 2 and clamping cylinder 4 are by operating control device 3 controls.Operating control device 3 is a general device, comprises the control system of guidance panel, display panel and inside etc.
In conjunction with Fig. 2 and shown in Figure 3, clamping device 2 comprises gas pawl 21, horizontal supporting plate 22 and vertical supporting plate 24, vertical supporting plate 24 is connected on the frame 1 by vertical line slideway 25, horizontal supporting plate 22 is connected on the vertical supporting plate 24 by horizontal line slideway 23, gas pawl 21 is fixed on the vertical supporting plate 24, transversely affixed elastic reset mechanism 26 and left and right adjusting knob 28 respectively on the vertical supporting plate 24 of line slideway 23 directions in horizontal supporting plate 22 both sides, affixed elastic reset mechanism 26 and front and back adjusting knob 27 respectively on the frame 1 of line slideway 25 directions along the longitudinal in vertical supporting plate 24 both sides.Elastic reset mechanism 26 comprises pedestal 261 and the guide rod 262 that is in axial sliding connection in pedestal 261, is with spring 263 on guide rod 262, and these spring 263 1 ends withstand on the guide rod 262, and the other end withstands on the pedestal 261, and guide rod 262 outer ends are resisted against on the gas pawl 21.Front and back adjusting knob 27 and left and right adjusting knob 28 are flexible milscale.Under the effect of elastic reset mechanism 26, horizontal supporting plate 22 is resisted against on the left and right adjusting knob 28, and rotation left and right adjusting knob 28 can make horizontal supporting plate 22 displacements.In like manner, adjusting knob 27 before and after the rotation, vertical supporting plate 24 also can displacements, like this, regulate the position between gas pawl 21 and the charging connector 5 exactly.
As shown in Figure 3, described charging connector 5 comprises the connector 51 that sets out pore 53 and the rubber seal 52 of air hole 54 is set, connector 51 sidepieces have the side opening 55 that joins with above-mentioned wireway, described side opening 55 is communicated with venthole 53, and rubber seal 52 is plugged in the venthole 53 of above-mentioned connector 51.The aperture of air hole 54 is greater than the aperture of venthole 53, and in the port of air hole 54 enlarging 56 is set.The sealing surface of rubber seal 52 is the plane, and the outer peripheral face of its end is provided with chamfering 57, and the contact area of the side of the sealing surface of seal head and lighter is reduced, and is applicable to the sealing of curved surface.
As shown in Figure 4, inflation mechanism 6 comprises high-pressure air source 8 and flow control valve 9, and flow control valve 9 adopts needle-valve in this example, has the servomotor of control needle-valve aperture in the needle-valve, and high-pressure air source 8 is the gases at high pressure greater than 2MPa.Be connected with first solenoid valve 10 between the inlet end of high-pressure air source 8 and flow control valve 9, be connected by second solenoid valve 11 between the inlet end of the outlet side of flow control valve 9 and pressure unit 7, the servomotor of operating control device and needle-valve joins.First outlet side of pressure unit 7 is connected with charging connector 5 by the 3rd solenoid valve 12, and second outlet side of pressure unit 7 is connected with gas outlet 13, and the 4th solenoid valve 14 is set on gas outlet 13.Four above-mentioned solenoid valves all are connected with operating control device.
Control system in the operating control device 3 adopts general purpose control modes such as PLC, relay.Connecting pipe in the gas circuit adopts metal tube, is provided with ball-joint web member 15 between metal tube and the charging connector 5.Be provided with support 16 on the upper strata of frame 1, clamping cylinder 4 is fixed on the support 16, also be provided with the position sensor that is connected with control system on support 16, send signal and give control system when position sensor is responded to, control system control clamping cylinder 4 stops to move down.
Press in the use of detector in this lighter, lighter to be measured is packed in the frock, press the testing button of touch-screen, gas pawl 21 clamps lighter, clamping cylinder 4 descends and compresses lighter, first solenoid valve 10 is opened, second solenoid valve 11 is opened, the 3rd solenoid valve 12 is opened, and the 4th solenoid valve 14 cuts out.Control system control servomotor trace is opened needle-valve and is kept the needle-valve aperture, pressure unit 7 gaging pressures and output pressure value are given control system, show the force value of once gathering on the operating control device 3, control system is gathered force value twice, twice force value subtracted each other, difference is poor divided by twice acquisition time again, gained is air pressure rising speed, on operating control device 3, show air pressure rising speed Kpa/s), judge that whether air pressure rising speed reaches setting value or maximal value (peaked judgment basis is that a back air pressure rising speed is less than or equal to a preceding air pressure rising speed), then keeps the servomotor position when reaching setting value or maximal value; Then increase the needle-valve aperture less than setting value; Then reduce the needle-valve aperture greater than setting value.When the system pressure value reached, first solenoid valve 10 cut out, second solenoid valve 11 cuts out, and allowed the air-channel system pressurize.Gather force value twice by the time of setting, calculated difference is the pressure leakage amount, whether in allowed limits to judge the pressure leakages amount, then reports to the police on operating control device as surpassing, and finishes button by test.Open the 4th high-pressure solenoid valve pressure release, clamping cylinder 4 rises, and gas pawl 21 unclamps lighter, end of test (EOT).
As shown in Figure 5, adopt the detection method of above-mentioned internal pressure tester of lighter, this method comprises the steps:
A, preparation sample: extract the lighter sample, and leave the through hole that is communicated with inner chamber in a side of lighter sample;
B, put into sample: the lighter sample that the side is had a through hole is put into above-mentioned gas pawl 21 and is clamped, by front and back adjusting knob 27 and left and right adjusting knob 28 with the through hole on the lighter sample adjust to charging connector 5 under;
C, test sample: on operating control device 3, set parameter, control system control the 4th solenoid valve 14 is automatically closed, other solenoid valves are opened, clamping cylinder 4 forms sealing with charging connector 5 and lighter, inflate in the lighter sample by inflation mechanism 6 control charging connectors 5, when reaching setting value, pressure rises speed closes first solenoid valve 10 and second solenoid valve 11 makes system's pressurize, after the time of setting, gather force value then, whether in allowed limits to judge the pressure leakage amount by control system, if surpass then this lighter sample is defective, send warning;
D, finish detection: after test finished, control system was controlled the 4th solenoid valve 14 and is opened pressure release, and clamping cylinder 4 resets, and gas pawl 21 unclamps lighter, took out the lighter specimen, detected next time.