CN103234886B - Aluminized PVDC thin film air-permeability detection device - Google Patents
Aluminized PVDC thin film air-permeability detection device Download PDFInfo
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- CN103234886B CN103234886B CN201310120753.1A CN201310120753A CN103234886B CN 103234886 B CN103234886 B CN 103234886B CN 201310120753 A CN201310120753 A CN 201310120753A CN 103234886 B CN103234886 B CN 103234886B
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Abstract
The invention provides an aluminized PVDC thin film air-permeability detection device, and belongs to the technical field of machinery. Existing aluminized PVDC thin film air-permeability detection devices have technical problems such as low detection precision and low detection efficiency caused by high requirements on tightness on two sides of a thin film. With the device provided by the invention, the problems are solved. The aluminized PVDC thin film air-permeability detection device comprises a pedestal and a column vertically fixed on the pedestal. A positioning fixture which can position an aluminized PVDC thin film is arranged on the pedestal. An air volume sensor and a PLC programmable controller are arranged on the pedestal. The air volume sensor is connected with the PLC programmable controller through a line. An air jet mechanism which can jet air to the aluminized PVDC thin film fixed by the positioning fixture is also arranged on the pedestal. A linear pushrod motor is fixed on the upper end of the column. A pushrod of the linear pushrod motor is perpendicular to the column. A jet nozzle is fixed on the pushrod of the linear pushrod motor. The device provided by the invention has the advantages such as high detection precision.
Description
Technical field
The invention belongs to field of mechanical technique, relate to one and to aluminize PVDC banana pick-up unit.
Background technology
PVDC, formal name used at school " polyvinylidene chloride ", be a kind of softening temperature at the thermoplastic polymer of 160-200 DEG C, there is linear polymerization chain structure from beginning to end.Molecular structure is symmetrical, crystallinity is high, because its intermolecular cohesive force is strong, crystallinity is high, chlorine atom in PVDC molecule has hydrophobicity, can not form hydrogen bond, and oxygen molecule and hydrone are difficult to move in PVDC molecule, thus make it have excellent oxygen barrier and hinder moist, and its oxygen barrier is by the impact of ambient humidity.That is, at any temperature or damp condition, have the ability of remarkable obstruct steam, oxygen, smell and fragrance concurrently, PVDC film is the best plastic package material of the combination property in barrier of generally acknowledging at present.
Gas penetration potential is the perviousness of gas to macromolecular materials such as film, coating, fabrics.One of important physical property of polymkeric substance, relevant with the structure of polymkeric substance, phase and molecular motion situation.Such as terylene molecular polarity is strong, have rigid chain, and therefore its gas penetration potential is less than the tygon that polarity is little, have flexible chain; Containing two methyl in each structure of butyl rubber, segment can not free movement, therefore its gas penetration potential decades of times lower than natural rubber, and be the best rubber of impermeability, the research of polymkeric substance gas penetration potential has important practical to be worth.
Now conventional device for checking air permeability mainly gas penetration potential detector, its main operational principle is: be placed on by the sample of anticipating between upper and lower test chamber, clamping, first application of vacuum is carried out to low pressure chamber, then whole system is vacuumized, when after the vacuum tightness reaching regulation, close and detect cavity of resorption, the test gas of certain pressure is filled with to high pressure chest, and ensure to be formed in sample both sides a constant pressure reduction, such gas can under the effect of differential pressure gradients, permeated by high side to low side, by the monitoring process to pressure in low-pressure side, thus draw every barrier parameter of detected sample, but this device for checking air permeability is very high to the seal request between the epicoele of film both sides and cavity of resorption, often there will be high pressure chest or low pressure chamber gas leakage, cause the phenomenon that metrical error is larger.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose one and to aluminize PVDC banana pick-up unit, how much calculated the gas penetration potential index of film by the air flow sensor gas detected through film.
Object of the present invention realizes by following technical proposal: one is aluminized PVDC banana pick-up unit, the column comprising base and be vertically fixed on base, it is characterized in that, described base is provided with positioning fixture PVDC film of aluminizing can located, described positioning fixture comprises base plate, described base plate is fixed on base, described base plate is provided with air flow sensor and PLC, described air flow sensor is connected with PLC by circuit, described PLC has the output port that can be connected with computing machine, described base is also provided with and can carries out jet jet mechanism to the PVDC film of aluminizing of being located by positioning fixture, jet mechanism comprises air pump, nozzle and connecting hose, described air pump is fixed on base, the import of described nozzle is connected with air pump by connecting hose, and the outlet of described nozzle is towards described base, variable valve is provided with in described connecting hose, described column upper end is fixed with line handspike motor, push rod and the described column of described line handspike motor are perpendicular, described nozzle is fixed on the push rod of line handspike motor.
By positioning fixture will aluminize the tensioning of PVDC film fixing after, utilizing the nozzle be connected with air pump to aim at PVDC film upper surface of aluminizing carries out jet, the air flow sensor be arranged on below PVDC film of aluminizing is utilized to detect the gas through PVDC film of aluminizing, air flow sensor and a PLC are connected, PLC is connected with computer, PLC can by the program editted, the air quantity monitored by air flow sensor processes, and calculate film gas penetration potential index under this state, be connected by flexible pipe between nozzle with air pump, nozzle is also fixed on the push rod of a line handspike motor, moved back and forth at PVDC film upper surface of aluminizing by driven by motor nozzle, all to carry out gas penetration potential detection to the diverse location of whole sample, variable valve is provided with in connecting hose, variable valve can by from nozzle air-pressure controlling out numerically some, reduce variable, improve the precision detected.
Aluminize in PVDC banana pick-up unit in above-mentioned one, described positioning fixture also comprises a pole be vertically fixed on base plate, the upper end level of described pole is fixed with a transverse slat, described transverse slat is inserted with two to be parallel to each other and the tensioning cylinder that can rotate, being provided with one between described tensioning cylinder and transverse slat can make tensioning cylinder be fixed on positioning component on transverse slat, described tensioning cylinder offers vertically a clip slot; Described positioning component comprises bolt hole and two bolts coordinated with bolt hole that two are opened in transverse slat upper surface, and described bolt can be resisted against on tensioning cylinder; Described tensioning cylinder is fixedly installed a turning knob, two described tensioning cylinders are respectively provided with a benchmark back-up ring, the line of two benchmark back-up rings and tensioning cylinder axes normal; Described turning knob is provided with tread plate, and described clip slot is offered along tensioning barrel dliameter line, and the left end of clip slot aligns with benchmark back-up ring.
PVDC film of aluminizing is cut into square, two just right for PVDC film of aluminizing edges are snapped in the clip slot of two tensioning cylinders respectively, rotate tensioning cylinder, the PVDC film that makes to aluminize is in smooth tensioning state, because the fixture of PVDC film moisture-penetrability test of originally aluminizing have employed two tensioning cylinders, just can realize aluminizing by the turning knob rotated on two tensioning cylinders the tensioning of PVDC film, not only can adjust its tensioning degree, and the flatness of the PVDC film that can also ensure to aluminize; Tensioning cylinder can be fixed after PVDC film tensioning of aluminizing by the bolt be arranged on transverse slat by tensioning cylinder, each tensioning cylinder is also fixedly installed a benchmark back-up ring, the effect of benchmark back-up ring twists on tensioning cylinder by straight for PVDC film of aluminizing, convenient operation, and be conducive to the smooth of PVDC film of aluminizing; Turning knob is provided with tread plate, is also conducive to the easy to operate of this device.
Aluminize in PVDC banana pick-up unit in above-mentioned one, alternatively situation, described positioning fixture also comprises the back up pad be fixed on base plate, described back up pad is fixed with a backstay, described backstay is provided with a clamp assembly, described back up pad is also equipped with a nutted rod parallel with backstay, described nutted rod is connected by bearing with between back up pad, described nutted rod offers vertically a clip slot; Clamp assembly comprises a fixing clip on the securing lever, described clip is provided with set bolt, described nutted rod is fixedly installed a turning knob, the two ends, left and right of described clip are respectively provided with a reference block, described nutted rod is provided with a benchmark back-up ring corresponding with the reference block of clip left end, described back up pad is provided with a pin, and nutted rod can be fixed on the supporting plate by described pin.
PVDC film of aluminizing is cut into square, its one end is fixing on the securing lever by clamp assembly, the other end snaps in clip slot, rotate the turning knob on nutted rod, the PVDC film that makes to aluminize is in smooth tensioning state, fixture due to PVDC gas permeability test of originally aluminizing have employed a nutted rod, and realize aluminizing the tensioning of PVDC film by rotating nutted rod, not only can adjust its tensioning degree, and the flatness of the PVDC film that can also ensure to aluminize, the other end of PVDC film of aluminizing is connected with a clip, clip is easy to operate, be conducive to aluminizing the dismounting of PVDC film, nutted rod is provided with a benchmark back-up ring, two ends, clip left and right are equipped with a reference block, the reference block being positioned at the clip left side is corresponding with the benchmark back-up ring on nutted rod, be convenient to ensure when installing and aluminizing PVDC film the smooth of PVDC film of aluminizing as much as possible, be provided with one on the supporting plate and nutted rod can be fixed on pin, adjust the rate of tension of PVDC film of aluminizing at nutted rod after, utilize pin to be fixed by nutted rod, ensure that PVDC film of aluminizing is in smooth tensioning state.
Aluminize in PVDC banana pick-up unit in above-mentioned one, between described base plate and air flow sensor, be provided with the elevating mechanism that can drive air flow sensor oscilaltion.Elevating mechanism is used for air flow sensor to move up and down stably; Owing to aluminizing, PVDC film is softer, and manual operations causes PVDC deformation of thin membrane of aluminizing, and cause the homogeneity of PVDC film of aluminizing to change, impact accuracy of detection, manual operations also may directly cause PVDC film breaks of aluminizing.
Aluminize in PVDC banana pick-up unit in above-mentioned one, described elevating mechanism comprises motor, screw mandrel, nut and lifter plate, described motor is fixed on base, described screw mandrel is fixed on the output shaft of motor, described nut thread is connected on described screw mandrel, bearing is fixed with in described lifter plate, described bearing inner race is sheathed and be fixed on outside described nut, described screw mandrel upper end is also fixed with travel switch, and described travel switch is connected with described motor by circuit.Utilize feed screw nut's structure that the rotary motion of motor is converted to rectilinear motion; feed screw nut's structure can utilize driven by motor nut to move up and down uniformly; be conducive to the protection to PVDC film of aluminizing; be connected by bearing between lifter plate with nut; ensure that lifter plate only moves up and down, and non rotating, when nut moves to the position of setting; trigger travel switch, motor cuts out.
Aluminize in PVDC banana pick-up unit in above-mentioned one, also windproof tube is provided with between described air flow sensor and lifter plate, described air flow sensor is fixed in windproof tube, described windproof tube is fixed on described lifter plate, described windproof tube top has opening, described windproof tube top is fixed with the O-ring seal one can be close to mutually with PVDC film of aluminizing, offering the through hole for passing for circuit bottom described windproof tube, the hole wall of described through hole being fixed with O-ring seal two.
Air flow sensor is fixedly installed in windproof tube, windproof tube is connected with lifter plate, elevating mechanism can drive windproof tube to move up and down, windproof tube upper surface is provided with O-ring seal one, sealing circle one can recline with PVDC film of aluminizing, the upper surface of windproof tube is also provided with multiple clamp arm, the upper end of windproof tube is sandwiched between windproof tube and clamping plate by clamping plate identical with windproof tube upper surface outline line PVDC film of aluminizing, clamping plate are also provided with clamp arm, can be bolted between two corresponding clamp arms, windproof tube and aluminizing between PVDC film is sealed, air flow sensor is connected with the PLC of outside through through hole by wire, for the sealing ensureing windproof tube and aluminize between PVDC film, O-ring seal two with pilot seal is also set in through hole.
Aluminize in PVDC banana pick-up unit in above-mentioned one, described base is also fixed with the time relay, the described time relay is all connected with line handspike motor with above-mentioned air pump by circuit.The time relay is used for controlling detection time, and at the end of the detection time of setting, air pump and line handspike motor are closed by the time relay timely, when the air quantity that air flow sensor detects is zero, automatically terminates this and detects.
Aluminize in PVDC banana pick-up unit in above-mentioned one, the external diameter of described connecting hose is less than the bore of the import of described nozzle, is provided with the periphery wall of connecting hose can be made to be close to jump ring on the mouth wall of the import of nozzle in described connecting hose.Jump ring, by connecting hose and firm the fixing of nozzle, prevents the motion of line handspike motor from causing connecting hose and nozzle to depart from.
Compared with prior art, the present invention has the following advantages:
1, this pick-up unit utilizes jet mechanism, elevating mechanism and positioning fixture etc., realizes a kind of pick-up unit how much being calculated the gas penetration potential index of film by the air flow sensor gas detected through film.
2, have employed elevating mechanism in this pick-up unit, the PVDC deformation of thin membrane of aluminizing preventing manual operations from causing, cause the homogeneity of PVDC film of aluminizing to change, impact accuracy of detection, manual operations also may directly cause PVDC film breaks of aluminizing.
3, in the positioning fixture in pick-up unit, two just right for PVDC film of aluminizing edges are snapped in the clip slot of two tensioning cylinders respectively, rotate tensioning cylinder, the PVDC film that makes to aluminize is in smooth tensioning state, because the fixture of PVDC film moisture-penetrability test of originally aluminizing have employed two tensioning cylinders, just can realize aluminizing by the turning knob rotated on two tensioning cylinders the tensioning of PVDC film, not only can adjust its tensioning degree, and the flatness of the PVDC film that can also ensure to aluminize.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of PVDC banana pick-up unit of originally aluminizing in embodiment one.
Fig. 2 is the structural representation of positioning fixture in embodiment one.
Fig. 3 is the structural representation of positioning fixture in embodiment two.
Fig. 4 is structural representation when elevating mechanism does not cover clamping plate in embodiment one.
Fig. 5 is that in embodiment one, elevating mechanism covers the structural representation after clamping plate.
Fig. 6 is the semisectional view in A direction in Fig. 4.
Fig. 7 is the structural representation of jet mechanism in embodiment one.
Fig. 8 is the syndeton schematic diagram in embodiment one between connecting hose and nozzle.
Fig. 9 is the enlarged drawing of part B in 2.
In figure, 1, base; 2, column; 3, positioning fixture; 311, base plate; 312, pole; 313, transverse slat; 314, tensioning cylinder; 315, positioning component; 3151, bolt hole; 3152, bolt; 316, clip slot; 317, turning knob; 318, benchmark back-up ring; 319, tread plate; 321, back up pad; 322, backstay; 323, clamp assembly; 3231, clip; 3232, set bolt; 324, nutted rod; 325, reference block; 326, pin; 4, air flow sensor; 5, PLC; 6, output port; 7, jet mechanism; 71, air pump; 72, nozzle; 73, connecting hose; 74, variable valve; 75, line handspike motor; 76, jump ring; 8, elevating mechanism; 81, motor; 82, screw mandrel; 83, nut; 84, lifter plate; 85, travel switch; 86, windproof tube; 87, O-ring seal one; 88, O-ring seal two; 89, clamp arm; 810, clamping plate; 9, the time relay; 10, to aluminize PVDC film.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one:
As Fig. 1, Fig. 2, shown in Fig. 8 and Fig. 9, one is aluminized PVDC film 10 device for checking air permeability, comprise base 1 and be vertically fixed on the column 2 on base 1, base 1 is provided with the positioning fixture 3 PVDC film 10 of aluminizing can located, positioning fixture 3 comprises base plate 311, base plate 311 is fixed on base 1, base plate 311 is provided with air flow sensor 4 and PLC 5, air flow sensor 4 is connected with PLC 5 by circuit, PLC 5 has the output port 6 that can be connected with computing machine, base 1 is also provided with and can carries out jet jet mechanism 7 to the PVDC film 10 of aluminizing of being located by positioning fixture 3, jet mechanism 7 comprises air pump 71, nozzle 72 and connecting hose 73, air pump 71 is fixed on base 1, the import of nozzle 72 is connected with air pump 71 by connecting hose 73, and the outlet of nozzle 72 is towards base 1, variable valve 74 is provided with in connecting hose 73, column 2 upper end is fixed with line handspike motor 75, push rod and the column 2 of line handspike motor 75 are perpendicular, nozzle 72 is fixed on the push rod of line handspike motor 75.
Positioning fixture 3 also comprises a pole 312 be vertically fixed on base plate 311, the upper end level of pole 312 is fixed with a transverse slat 313, transverse slat 313 is inserted with two to be parallel to each other and the tensioning cylinder 314 that can rotate, being provided with one between tensioning cylinder 314 and transverse slat 313 can make tensioning cylinder 314 be fixed on positioning component 315 on transverse slat 313, tensioning cylinder 314 offers vertically a clip slot 316, positioning component 315 comprises bolt hole 3151 and two bolts 3152 coordinated with bolt hole 3151 that two are opened in transverse slat 313 upper surface, and bolt 3152 can be resisted against on tensioning cylinder 314, tensioning cylinder 314 is fixedly installed the line and tensioning cylinder 314 axes normal that a turning knob 317, two tensioning cylinders 314 are respectively provided with a benchmark back-up ring 318, two benchmark back-up rings 318, turning knob 317 is provided with tread plate 319, clip slot 316 is offered along tensioning cylinder 314 radial line, and the left end of clip slot 316 aligns with benchmark back-up ring 318, PVDC film 10 of aluminizing is cut into square, two just right for PVDC film 10 of aluminizing edges are snapped in the clip slot 316 of two tensioning cylinders 314 respectively, rotate tensioning cylinder 314, the PVDC film 10 that makes to aluminize is in smooth tensioning state, because the fixture of PVDC film 10 moisture-penetrability test of originally aluminizing have employed two tensioning cylinders 314, just can realize aluminizing by the turning knob 317 rotated on two tensioning cylinders 314 tensioning of PVDC film 10, not only can adjust its tensioning degree, and the flatness of the PVDC film 10 that can also ensure to aluminize, tensioning cylinder 314 can be fixed after PVDC film 10 tensioning of aluminizing by the bolt 3152 be arranged on transverse slat 313 by tensioning cylinder 314, each tensioning cylinder 314 is also fixedly installed a benchmark back-up ring 318, the effect of benchmark back-up ring 318 twists on tensioning cylinder 314 by straight for PVDC film 10 of aluminizing, convenient operation, and be conducive to the smooth of PVDC film 10 of aluminizing, turning knob 317 is provided with tread plate 319, is also conducive to the easy to operate of this device.
As shown in Figure 1, Figure 4 and Figure 5, the elevating mechanism 8 that can drive air flow sensor 4 oscilaltion is provided with between base plate 311 and air flow sensor 4.Elevating mechanism 8 is for moving up and down air flow sensor 4 stably, owing to aluminizing, PVDC film 10 is softer, the manual operations PVDC film 10 that causes aluminizing is out of shape, the homogeneity of PVDC film 10 of aluminizing is caused to change, accuracy of detection is impacted, the manual operations PVDC film 10 that also may directly cause aluminizing breaks, elevating mechanism 8 comprises motor 81, screw mandrel 82, nut 83 and lifter plate 84, motor 81 is fixed on base 1, screw mandrel 82 is fixed on the output shaft of motor 81, nut 83 is threaded on upper screw rod 82, bearing is fixed with in lifter plate 84, bearing inner race is sheathed and be fixed on outside nut 83, screw mandrel 82 upper end is also fixed with travel switch 85, travel switch 85 is connected with motor 81 by circuit.Utilize screw mandrel 82 nut 83 structure that the rotary motion of motor 81 is converted to rectilinear motion; screw mandrel 82 nut 83 structure can utilize motor 81 to drive nut 83 to move up and down uniformly; be conducive to the protection to PVDC film 10 of aluminizing; be connected by bearing between lifter plate 84 with nut 83; ensure that lifter plate 84 only moves up and down, and non rotating, when nut 83 moves to the position of setting; trigger travel switch 85, motor 81 cuts out.
As shown in figures 1 to 6, windproof tube 86 is also provided with between air flow sensor 4 and lifter plate 84, air flow sensor 4 is fixed in windproof tube 86, windproof tube 86 is fixed on lifter plate 84, windproof tube 86 top has opening, windproof tube 86 top is fixed with the O-ring seal 1 can be close to mutually with PVDC film 10 of aluminizing, the through hole for passing for circuit is offered bottom windproof tube 86, the hole wall of through hole is fixed with O-ring seal 2 88, air flow sensor 4 is fixedly installed in windproof tube 86, windproof tube 86 is connected with lifter plate 84, elevating mechanism 8 can drive windproof tube 86 to move up and down, upper surface is provided with O-ring seal 1 to windproof tube 86, sealing circle 1 can recline with PVDC film 10 of aluminizing, the upper surface of windproof tube 86 is also provided with multiple clamp arm 89, the upper end of windproof tube 86 is sandwiched between windproof tube 86 and clamping plate 810 by clamping plate 810 identical with windproof tube 86 upper surface outline line PVDC film 10 of aluminizing, clamping plate 810 are also provided with clamp arm 89, can be bolted between two corresponding clamp arms 89, windproof tube 86 and aluminizing between PVDC film 10 is sealed, air flow sensor 4 is connected with the PLC 5 of outside through through hole by wire, for the sealing ensureing windproof tube 86 and aluminize between PVDC film 10, O-ring seal 2 88 with pilot seal is also set in through hole.
As shown in Figure 1, base 1 is also fixed with the time relay 9, the time relay 9 is all connected with line handspike motor 75 with above-mentioned air pump 71 by circuit, the time relay 9 is for controlling detection time, at the end of the detection time of setting, air pump 71 and line handspike motor 75 are closed by the time relay 9 timely, when the air quantity that air flow sensor 4 detects is zero, automatically terminates this and detect.
As shown in Figure 7 and Figure 8, the external diameter of connecting hose 73 is less than the bore of the import of nozzle 72, be provided with in connecting hose 73 and the periphery wall of connecting hose 73 can be made to be close to jump ring 76 on the mouth wall of the import of nozzle 72, firm to connecting hose 73 and nozzle 72 is fixed by jump ring 76, prevents the motion of line handspike motor 75 from causing connecting hose 73 and nozzle 72 to depart from.
Embodiment two:
As shown in Figure 3, the content of the present embodiment is roughly identical with embodiment one, difference is: positioning fixture 3 also comprises the back up pad 321 be fixed on base plate 311, back up pad 321 is fixed with a backstay 322, backstay 322 is provided with a clamp assembly 323, back up pad 321 is also equipped with a nutted rod 324 parallel with backstay 322, is connected by bearing between nutted rod 324 with back up pad 321, nutted rod 324 offers vertically a clip slot 316, clamp assembly 323 comprises a clip 3231 be fixed on backstay 322, clip 3231 is provided with set bolt 3232, nutted rod 324 is fixedly installed a turning knob 317, the two ends, left and right of clip 3231 are respectively provided with a reference block 325, nutted rod 324 is provided with a benchmark back-up ring 318 corresponding with the reference block 325 of clip 3231 left end, back up pad 321 is provided with a pin 326, nutted rod 324 can be fixed in back up pad 321 by pin 326, PVDC film 10 of aluminizing is cut into square, its one end is fixed on backstay 322 by clamp assembly 323, the other end snaps in clip slot 316, rotate the turning knob 317 on nutted rod 324, the PVDC film 10 that makes to aluminize is in smooth tensioning state, because the fixture of PVDC film 10 gas penetration potential test of originally aluminizing have employed a nutted rod 324, and realize aluminizing the tensioning of PVDC film 10 by rotating nutted rod 324, not only can adjust its tensioning degree, and the flatness of the PVDC film 10 that can also ensure to aluminize, the other end of PVDC film 10 of aluminizing is connected with a clip 3231, clip 3231 is easy to operate, be conducive to aluminizing the dismounting of PVDC film 10, nutted rod 324 is provided with a benchmark back-up ring 318, clip about 3231 two ends are equipped with a reference block 325, the reference block 325 being positioned at clip 3231 left side is corresponding with the benchmark back-up ring 318 on nutted rod 324, be convenient to ensure when installing and aluminizing PVDC film 10 the smooth of PVDC film 10 of aluminizing as much as possible, back up pad 321 is provided with one and nutted rod 324 can be fixed on pin 326, adjust the rate of tension of PVDC film 10 of aluminizing at nutted rod 324 after, utilize pin 326 to be fixed by nutted rod 324, ensure that PVDC film 10 of aluminizing is in smooth tensioning state.
Principle of work of the present invention is: by positioning fixture 3 will aluminize PVDC film 10 tensioning fixing after, utilizing the nozzle 72 be connected with air pump 71 to aim at PVDC film 10 upper surface of aluminizing carries out jet, the air flow sensor 4 be arranged on below PVDC film 10 of aluminizing is utilized to detect the gas through PVDC film 10 of aluminizing, air flow sensor 4 and a PLC 5 are connected, PLC 5 is connected with computer, PLC 5 can by the program editted, the air quantity that air flow sensor 4 monitors is processed, and calculate film gas penetration potential index under this state, be connected by flexible pipe between nozzle 72 with air pump 71, nozzle 72 is also fixed on the push rod of a line handspike motor 75, moved back and forth at PVDC film 10 upper surface of aluminizing by driven by motor nozzle 72, all to carry out gas penetration potential detection to the diverse location of whole sample, variable valve 74 is provided with in connecting hose 73, variable valve 74 can by from nozzle 72 air-pressure controlling out numerically some, reduce variable, improve the precision detected.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ base 1 herein, column 2, positioning fixture 3, base plate 312, pole 311, transverse slat 313, tensioning cylinder 314, positioning component 315, bolt hole 3151, bolt 3152, clip slot 316, turning knob 317, benchmark back-up ring 318, tread plate 319, back up pad 321, backstay 322, clamp assembly 323, clip 3231, set bolt 3232, nutted rod 324, reference block 325, pin 326, air flow sensor 4, PLC 5, output port 6, jet mechanism 7, air pump 71, nozzle 72, connecting hose 73, variable valve 74, line handspike motor 75, jump ring 76, elevating mechanism 8, motor 81, screw mandrel 82, nut 83, lifter plate 84, travel switch 85, windproof tube 86, O-ring seal 1, O-ring seal 2 88, clamp arm 89, clamping plate 810, the time relay 9, PVDC film 10 grade of aluminizing term, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (6)
1. a PVDC banana pick-up unit of aluminizing, comprise base (1) and be vertically fixed on the column (2) on base (1), it is characterized in that, described base (1) is provided with the positioning fixture (3) PVDC film (10) of aluminizing can located, described positioning fixture (3) comprises base plate (311), described base plate (311) is fixed on base (1), described base plate (311) is provided with air flow sensor (4) and PLC (5), described air flow sensor (4) is connected with PLC (5) by circuit, described PLC (5) has the output port (6) that can be connected with computing machine, described base (1) is also provided with and can carries out jet jet mechanism (7) to the PVDC film (10) of aluminizing of being located by positioning fixture (3), jet mechanism (7) comprises air pump (71), nozzle (72) and connecting hose (73), described air pump (71) is fixed on base (1), the import of described nozzle (72) is connected with air pump (71) by connecting hose (73), and the outlet of described nozzle (72) is towards described base (1), variable valve (74) is provided with in described connecting hose (73), described column (2) upper end is fixed with line handspike motor (75), push rod and the described column (2) of described line handspike motor (75) are perpendicular, described nozzle (72) is fixed on the push rod of line handspike motor (75), described positioning fixture (3) also comprises a pole (312) be vertically fixed on base plate (311), the upper end level of described pole (312) is fixed with a transverse slat (313), described transverse slat (313) is inserted with two to be parallel to each other and the tensioning cylinder (314) that can rotate, being provided with one between described tensioning cylinder (314) and transverse slat (313) can make tensioning cylinder (314) be fixed on positioning component (315) on transverse slat (313), described tensioning cylinder (314) offers vertically a clip slot (316), described positioning component (315) comprises bolt hole (3151) and two bolts (3152) coordinated with bolt hole (3151) that two are opened in transverse slat (313) upper surface, and described bolt (3152) can be resisted against on tensioning cylinder (314), described tensioning cylinder (314) is fixedly installed a turning knob (317), two described tensioning cylinders (314) are respectively provided with a benchmark back-up ring (318), the line of two benchmark back-up rings (318) and tensioning cylinder (314) axes normal, described turning knob (317) is provided with tread plate (319), described clip slot (316) is offered along tensioning cylinder (314) radial line, and the left end of clip slot (316) aligns with benchmark back-up ring (318).
2. one according to claim 1 is aluminized PVDC banana pick-up unit, it is characterized in that, between described base plate (311) and air flow sensor (4), be provided with the elevating mechanism (8) that can drive air flow sensor (4) oscilaltion.
3. one according to claim 2 is aluminized PVDC banana pick-up unit, it is characterized in that, described elevating mechanism (8) comprises motor (81), screw mandrel (82), nut (83) and lifter plate (84), described motor (81) is fixed on base (1), described screw mandrel (82) is fixed on the output shaft of motor (81), described nut (83) is threaded on described screw mandrel (82), bearing is fixed with in described lifter plate (84), described bearing inner race is sheathed and be fixed on described nut (83) outward, described screw mandrel (82) upper end is also fixed with travel switch (85), described travel switch (85) is connected with described motor (81) by circuit, described air flow sensor (4) is connected mutually with described lifter plate (84).
4. one according to claim 3 is aluminized PVDC banana pick-up unit, it is characterized in that, windproof tube (86) is also provided with between described air flow sensor (4) and lifter plate (84), described air flow sensor (4) is fixed in windproof tube (86), described windproof tube (86) is fixed on described lifter plate (84), described windproof tube (86) top has opening, described windproof tube (86) top is fixed with the O-ring seal one (87) can be close to mutually with PVDC film (10) of aluminizing, described windproof tube (86) bottom offers the through hole for passing for circuit, the hole wall of described through hole is fixed with O-ring seal two (88).
5. one according to claim 1 is aluminized PVDC banana pick-up unit, it is characterized in that, described base (1) is also fixed with the time relay (9), and the described time relay (9) is all connected with line handspike motor (75) with above-mentioned air pump (71) by circuit.
6. one according to claim 1 is aluminized PVDC banana pick-up unit, it is characterized in that, the external diameter of described connecting hose (73) is less than the bore of the import of described nozzle (72), is provided with the periphery wall of connecting hose (73) can be made to be close to jump ring (76) on the mouth wall of the import of nozzle (72) in described connecting hose (73).
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| CN103954556B (en) * | 2014-04-11 | 2016-04-27 | 嘉兴职业技术学院 | One is aluminized PVDC adhesion of thin film detector |
| CN104089865A (en) * | 2014-07-14 | 2014-10-08 | 海宁长宇镀铝材料有限公司 | Multifunctional film detector |
| CN104132879B (en) * | 2014-07-22 | 2017-11-21 | 嘉兴市梦迪织造有限公司 | A kind of uvioresistant hemp is knitted fabric gas permeability detection machine |
| CN104569029B (en) * | 2015-01-29 | 2018-07-27 | 永春县裕顺工业设计有限公司 | A kind of verifying attachment of fire prevention socks |
| CN104897542B (en) * | 2015-05-29 | 2017-08-18 | 上海嘉麟杰纺织品股份有限公司 | A kind of method for testing fabric wind-proof performance |
| CN108375536A (en) * | 2018-03-06 | 2018-08-07 | 上海诺臻化工新材料有限公司 | A kind of air flux tester and test method |
| CN110160937B (en) * | 2019-06-21 | 2022-06-24 | 广州千誉智能科技有限公司 | Underwear air permeability detection system |
| CN112067210B (en) * | 2020-09-18 | 2021-06-04 | 绍兴金阳纺织有限公司 | Cloth leakproofness detection device based on sealed protective clothing safety inspection |
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| CN201110852Y (en) * | 2007-11-21 | 2008-09-03 | 比亚迪股份有限公司 | Chucking appliance for ion-exchange membrane performance test |
| CN101468337A (en) * | 2007-12-27 | 2009-07-01 | 同方威视技术股份有限公司 | Clearance jetting device |
| JP2010160098A (en) * | 2009-01-09 | 2010-07-22 | Yamagata Promotional Organization For Industrial Technology | Moisture vapor permeability and gas permeability measuring device |
| JP2010190751A (en) * | 2009-02-18 | 2010-09-02 | Mitsubishi Chemicals Corp | Gas permeability measuring device and gas permeability measuring method for film material |
| CN201404017Y (en) * | 2009-03-11 | 2010-02-17 | 吴小国 | Wall-hung type multi-functional electric lifting device |
| CN201364299Y (en) * | 2009-03-12 | 2009-12-16 | 杭州中策橡胶有限公司 | Device for air permeability test of rubber |
| CN101537941A (en) * | 2009-04-27 | 2009-09-23 | 无锡先导自动化设备有限公司 | Improved membrane type material tensioning structure |
| CN101537942A (en) * | 2009-04-27 | 2009-09-23 | 无锡先导自动化设备有限公司 | Membrane type material tensioning structure |
| CN202502027U (en) * | 2012-03-09 | 2012-10-24 | 中华全国供销合作总社济南果品研究院 | Silicon rubber air-regulating film ventilation detector |
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