CN117054319B - Ozone aging test device and method for polyurethane product detection - Google Patents
Ozone aging test device and method for polyurethane product detection Download PDFInfo
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- CN117054319B CN117054319B CN202311274931.6A CN202311274931A CN117054319B CN 117054319 B CN117054319 B CN 117054319B CN 202311274931 A CN202311274931 A CN 202311274931A CN 117054319 B CN117054319 B CN 117054319B
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 230000032683 aging Effects 0.000 title claims abstract description 34
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 34
- 239000004814 polyurethane Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 127
- 238000001125 extrusion Methods 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 32
- 238000003825 pressing Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 9
- 238000010998 test method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Analytical Chemistry (AREA)
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- Environmental & Geological Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of polyurethane test devices, in particular to an ozone aging test device for polyurethane product detection and a method thereof; comprising the following steps: a case; an ozone mechanism, a temperature mechanism and a humidity mechanism are arranged in the box body; the ozone mechanism is used for generating ozone in the box body; the temperature mechanism and the humidity mechanism are used for adjusting the temperature and the humidity in the box body; when the ozone aging test is carried out, the extrusion block moves downwards with the rotating shaft and the transmission belt to extrude the polyurethane rubber roller, so that the polyurethane rubber roller is pressurized, and the reluctance coil is used for preventing the rotation of the metal flywheel.
Description
Technical Field
The invention relates to the technical field of polyurethane test devices, in particular to an ozone aging test device for polyurethane product detection and a method thereof.
Background
Polyurethane is an important polymer material, has wide application fields and excellent performance, so that a polyurethane plastic gear made of the polyurethane material has higher wear resistance and higher strength, and polyurethane products are widely applied, for example, the polyurethane material can be used for preparing high-quality artificial fibers and manufacturing elastomer products (gaskets or sealing members);
the use environment of polyurethane products is mostly exposed in the air, ozone in the air oxidizes the polyurethane products, so that the polyurethane products yellow and crack and various excellent physical properties are reduced, therefore, an ozone aging experiment is required to be carried out on the polyurethane products, the environment such as proper ozone concentration, temperature, humidity and the like is set in the experimental device for more than ten to one hundred hours, and after the experiment is finished, a sample is taken out and the appearance, physical properties, chemical properties and the like of the sample are tested and analyzed;
polyurethane products are various, and the polyurethane rubber roller is often used as a calendaring roller, a pressing roller or a transmission roller in an actual production environment, so that the polyurethane rubber roller can receive pressure and tangential acting force in actual production, and an ozone aging test device for the polyurethane products cannot apply pressure and tangential acting force when carrying out ozone aging test on the polyurethane rubber roller, and has different use environments with the polyurethane rubber roller, so that limitation is caused.
Therefore, we propose an ozone aging test device for polyurethane product detection and a method thereof.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an ozone aging test device for polyurethane product detection and a method thereof, overcomes the defects of the prior art and aims at solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: an ozone aging test device for polyurethane product detection, comprising: a case; an ozone mechanism, a temperature mechanism and a humidity mechanism are arranged in the box body; the ozone mechanism is used for generating ozone in the box body; the temperature mechanism and the humidity mechanism are used for adjusting the temperature and the humidity in the box body;
the box body is internally and symmetrically fixedly connected with a supporting frame; the support frame is fixedly connected with a driving motor; the polyurethane rubber roller is rotationally connected to the supporting frame; the driving motor drives the polyurethane rubber roller to rotate; a pressing mechanism is arranged in the box body; the pressing mechanism is used for applying acting force in the horizontal direction and the vertical direction to the polyurethane rubber roller.
Preferably, the pressing mechanism comprises a pressing block, a rotating shaft, a conveying belt, a metal flywheel and a reluctance coil; the side walls of the two sides of the box body are provided with extrusion grooves; the extrusion block is connected in the extrusion groove in a sliding way; an extrusion electric push rod is fixedly connected in the extrusion groove; the output end of the extrusion electric push rod is connected with the extrusion block; two ends of the two rotating shafts are respectively and rotatably connected to the extrusion blocks on two sides of the box body; the transmission belt is sleeved on the two rotating shafts;
a first linkage rod and a second linkage rod are rotatably connected between the extrusion blocks at two sides of the box body; the transmission belt is contacted with the first linkage rod to drive the first linkage rod to rotate; the metal flywheel is fixedly connected to the second linkage rod, and the first linkage rod and the second linkage rod are fixedly connected with gears meshed with each other; the same supporting rod is fixedly connected between the two extrusion blocks; the magnetic resistance coil is fixedly connected to the supporting rod, and is located at the side edge of the metal flywheel.
Through setting up extrusion piece, axis of rotation, conveyer belt and metal flywheel in the box, when carrying out ozone ageing test, extrusion piece takes axis of rotation and conveyer belt to move down, extrudees the polyurethane rubber roll, thereby the polyurethane rubber roll receives pressure, and the reluctance coil produces the hindrance to the rotation of metal flywheel, because conveyer belt and polyurethane rubber roll outside tangential contact, thereby the polyurethane rubber roll receives tangential resistance, the direction of this resistance is unanimous with the effort direction that receives the goods when the polyurethane rubber roll is in the in-service use, the test process of the invention laminates the actual service environment of polyurethane rubber roll more when transmitting goods, make test result more accurate.
Preferably, the upper end of the extrusion block is fixedly connected with a first pressure sensor; the output end of the extrusion electric push rod is fixedly connected with the first pressure sensor.
Preferably, sliding grooves are formed in two sides of the box body; a sliding electric push rod is fixedly connected in the sliding groove; the output end of the sliding electric push rod is fixedly connected with a sliding block which is in sliding connection with the sliding groove; a detection shaft is rotationally connected between the two sliding blocks, and a detection motor is fixedly connected to the sliding blocks; the output end of the detection motor is fixedly connected with the detection shaft; the outer side of the detection shaft is sleeved with a detection cylinder; inclined slots are uniformly formed in the outer side of the detection shaft; the bottom of the inclined groove is fixedly connected with a second pressure sensor; and a detection spring is fixedly connected between the second pressure sensor and the detection cylinder.
When the first pressure sensor detects that the transmission belt is in contact with the polyurethane rubber roller, the pressure on the polyurethane rubber roller is detected, and before the ozone aging test is carried out on the polyurethane rubber roller through the detection shaft, the detection cylinder and the detection spring, the resistance of the transmission belt, the metal flywheel and the reluctance coil is detected and calibrated, and whether the current is fed into the reluctance coil through the controller corresponds to the resistance actually generated or not is detected, so that the accuracy of the pressure and tangential acting force on the polyurethane rubber roller is ensured, and the accuracy of a test result is ensured.
Preferably, the support frame is uniformly and slidably connected with a support block, and the support frame is connected with a fixing screw rod in a threaded manner; the fixing screw rod can extrude the supporting block to fix the supporting block; one side of the supporting block is rotationally connected with a belt pulley, and the other side of the supporting block is rotationally connected with a clamping block; the belt pulley is fixedly connected with the clamping block; the output end of the driving motor is also fixedly connected with a belt pulley; the belt pulley is sleeved with a belt.
Preferably, the support frame is fixedly connected with an extension spring, and the support frame is connected with a pulling block in a sliding manner; the stretching spring is fixedly connected with the pulling block; the pulling block is also connected with a belt pulley in a rotating way.
Preferably, the clamping block is circular, and a transverse groove is formed in the clamping block; clamping screws are symmetrically connected with two sides of the transverse groove on the clamping block in a threaded manner; one end of the clamping screw is positioned in the transverse groove.
Preferably, a positioning disc is arranged in the transverse groove; the positioning disc is marked with a concentric circle scale; the center of the positioning disc coincides with the center of the clamping block.
The polyurethane rubber roller is aligned to the position of the polyurethane rubber roller on the clamping block through the positioning disc, and the two ends of the polyurethane rubber roller are clamped by the clamping screw on the clamping block, so that the polyurethane rubber roller can be aligned to the circle center position of the clamping block rapidly and accurately when the polyurethane rubber rollers with different specifications are clamped, the polyurethane rubber roller is prevented from deviating from the circle center of the clamping block, and eccentric vibration is generated when the polyurethane rubber roller is driven to rotate by the clamping block, and the use effect of the polyurethane rubber roller is improved.
An ozone aging test method for polyurethane product detection is suitable for the ozone aging test device for polyurethane product detection, and comprises the following steps:
s1, a worker puts the polyurethane rubber roller into a clamping block, clamps the polyurethane rubber roller through a clamping screw rod, then closes a cabin door of a box body, and an ozone mechanism, a temperature mechanism and a humidity mechanism adjust the ozone concentration, the temperature and the humidity in the box body to the environment required by a test;
s2, the extrusion block moves downwards with the rotating shaft, the transmission belt and the metal flywheel, the transmission belt is in contact with the polyurethane rubber roller, and the transmission belt extrudes the polyurethane rubber roller downwards, so that the polyurethane rubber roller receives downward pressure, and the polyurethane rubber roller drives the transmission belt to rotate;
s3, current is introduced into the reluctance coil, a magnetic field generated by the reluctance coil has an obstruction effect on the rotation of the metal flywheel, the obstruction effect acts on the polyurethane rubber roller through the transmission belt, so that the polyurethane rubber roller receives acting force in the tangential direction, and the condition of the polyurethane rubber roller in article transmission is simulated; after the test is completed, the invention is closed, the cabin door is opened, and the polyurethane rubber roller is taken out.
The invention has the beneficial effects that:
1. according to the invention, the extrusion block, the rotating shaft, the transmission belt and the metal flywheel are arranged in the box body, when an ozone aging test is carried out, the extrusion block moves downwards along with the rotating shaft and the transmission belt to extrude the polyurethane rubber roller, so that the polyurethane rubber roller is pressurized, and the reluctance coil is used for blocking the rotation of the metal flywheel.
2. According to the invention, when the first pressure sensor detects that the transmission belt is in contact with the polyurethane rubber roller, the pressure on the polyurethane rubber roller is detected, and before the ozone aging test is carried out on the polyurethane rubber roller through the detection shaft, the detection cylinder and the detection spring, the resistance of the transmission belt, the metal flywheel and the reluctance coil is detected and calibrated, and whether the current is fed into the reluctance coil through the controller corresponds to the resistance actually generated or not is detected, so that the accuracy of the pressure and tangential acting force on the polyurethane rubber roller is ensured, and the accuracy of a test result is ensured.
3. According to the polyurethane rubber roller, the positioning disc is aligned with the position of the polyurethane rubber roller on the clamping block, and the clamping screw rods on the clamping block clamp the two ends of the polyurethane rubber roller, so that the polyurethane rubber roller can be aligned with the circle center position of the clamping block rapidly and accurately when the polyurethane rubber rollers with different specifications are clamped, the polyurethane rubber roller is prevented from deviating from the circle center of the clamping block, and eccentric vibration is generated when the clamping block drives the polyurethane rubber roller to rotate, so that the use effect of the polyurethane rubber roller is improved.
Drawings
FIG. 1 is a schematic structural view of an ozone aging test device for detecting polyurethane products;
FIG. 2 is a schematic view of the structure of the support frame, the conveyor belt, the rotating shaft and the metal flywheel in a sectional state;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is a cross-sectional view of the test shaft and test cartridge from the cross-sectional view C-C of FIG. 3;
FIG. 6 is a cross-sectional view of the support block, clamp block and pulley from the perspective of section D-D of FIG. 4.
In the figure: 1. a case; 11. an ozone mechanism; 12. a temperature mechanism; 13. a humidity mechanism; 14. a support frame; 15. a driving motor; 2. extruding a block; 21. a rotating shaft; 22. a transmission belt; 23. a metal flywheel; 24. a magneto-resistive coil; 25. an extrusion groove; 26. extruding the electric push rod; 27. a first linkage rod; 28. a second linkage rod; 29. a gear; 3. a support rod; 32. a first pressure sensor; 4. a sliding groove; 41. sliding the electric push rod; 42. a sliding block; 43. a detection shaft; 44. detecting a motor; 45. a detection cylinder; 46. an inclined groove; 47. a second pressure sensor; 48. detecting a spring; 5. a support block; 51. a fixed screw; 52. a belt pulley; 53. a clamping block; 54. a belt; 55. a tension spring; 56. pulling the block; 57. a transverse groove; 58. clamping a screw; 59. and positioning the disc.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1 of the specification, an ozone aging test apparatus for detecting polyurethane products comprises: a case 1; an ozone mechanism 11, a temperature mechanism 12 and a humidity mechanism 13 are arranged in the box body 1; the ozone mechanism 11 is used for generating ozone in the box body 1; the temperature mechanism 12 and the humidity mechanism 13 are used for adjusting the temperature and the humidity in the box body 1;
referring to fig. 2 of the specification, a supporting frame 14 is symmetrically and fixedly connected in the box body 1; the supporting frame 14 is fixedly connected with a driving motor 15; the polyurethane rubber roller is rotatably connected to the supporting frame 14; the driving motor 15 drives the polyurethane rubber roller to rotate; a pressing mechanism is arranged in the box body 1; the pressing mechanism is used for applying acting force in the horizontal direction and the vertical direction to the polyurethane rubber roller.
Referring to fig. 4 of the drawings, in the present invention, the pressing mechanism includes a pressing block 2, a rotating shaft 21, a conveyor belt 22, a metal flywheel 23, and a reluctance coil 24; the side walls of the two sides of the box body 1 are provided with extrusion grooves 25; the extrusion block 2 is connected in the extrusion groove 25 in a sliding way; an extrusion electric push rod 26 is fixedly connected in the extrusion groove 25; the output end of the extrusion electric push rod 26 is connected with the extrusion block 2; two ends of the two rotating shafts 21 are respectively and rotatably connected to the extrusion blocks 2 on two sides of the box body 1; the transmission belt 22 is sleeved on the two rotating shafts 21;
a first linkage rod 27 and a second linkage rod 28 are rotatably connected between the extrusion blocks 2 on two sides of the box body 1; the transmission belt 22 contacts with the first linkage rod 27 to drive the rotation of the first linkage rod; the metal flywheel 23 is fixedly connected to a second linkage rod 28, and the first linkage rod 27 and the second linkage rod 28 are fixedly connected with gears 29 which are meshed with each other; the same supporting rod 3 is fixedly connected between the two extrusion blocks 2; the reluctance coil 24 is fixedly connected to the support rod 3, and the reluctance coil 24 is located at the side edge of the metal flywheel 23.
In the invention, a cabin door is arranged on a box body 1, a polyurethane rubber roller is arranged on a supporting frame 14 after a worker opens the cabin door, then the worker closes the cabin door again, an ozone mechanism 11, a temperature mechanism 12 and a humidity mechanism 13 are opened, and the ozone concentration, the temperature and the humidity in the box body 1 are adjusted to the environment required by a test;
when the polyurethane rubber roller is required to rotate and acting force is applied to the tangential direction of the outer side of the polyurethane rubber roller, a worker controls the extrusion electric push rod 26 to push the extrusion block 2 downwards through the controller, so that the transmission belt 22 is in contact with the polyurethane rubber roller, then the controller controls the driving motor 15 to drive the polyurethane rubber roller to rotate, the polyurethane rubber roller drives the transmission belt 22 to rotate, the first linkage rod 27 in contact with the transmission belt 22 drives the second linkage rod 28 fixedly connected with the metal flywheel 23 and the metal flywheel 23 to rotate through the gear 29, then the controller introduces current into the reluctance coil 24, so that the reluctance coil 24 generates a magnetic field, the metal flywheel 23 is influenced by the magnetic field in the rotating process, the rotation is blocked, the resistance is transmitted to the transmission belt 22 through the second linkage rod 28 and the first linkage rod 27, and the polyurethane rubber roller is subjected to tangential resistance due to the tangential contact with the outer side of the polyurethane rubber roller, and the direction of the resistance is consistent with the acting force direction of goods when the polyurethane rubber roller is used in actual use; according to the invention, the extrusion electric push rod 26 is extruded to push the extrusion block 2 downwards, so that the transmission belt 22 is driven to move downwards by the rotation shaft 21, and the polyurethane rubber roller is extruded by the rotation shaft 21 and the transmission belt 22, so that the polyurethane rubber roller is subjected to certain pressure, and the environment of the polyurethane rubber roller in actual use can be more attached when the polyurethane rubber roller is subjected to an ozone aging test;
according to the invention, the extrusion block 2, the rotating shaft 21, the transmission belt 22 and the metal flywheel 23 are arranged in the box body 1, when an ozone aging test is carried out, the extrusion block 2 moves downwards along with the rotating shaft 21 and the transmission belt 22 to extrude the polyurethane rubber roller, so that the polyurethane rubber roller is pressurized, the reluctance coil 24 is used for blocking the rotation of the metal flywheel 23, and the polyurethane rubber roller is subjected to tangential resistance force due to tangential contact between the transmission belt 22 and the outer side of the polyurethane rubber roller, and the direction of the tangential resistance force is consistent with the direction of acting force of goods when the polyurethane rubber roller is used in actual use, and when goods are transported, the test process of the invention is more fit with the actual use environment of the polyurethane rubber roller, so that the test result is more accurate.
In the invention referring to fig. 3 of the specification, a first pressure sensor 32 is fixedly connected to the upper end of the extrusion block 2; the output of the squeeze motor 26 is fixedly connected to a first pressure sensor 32.
Referring to fig. 2, 3 and 5 of the specification, in the present invention, sliding grooves 4 are formed on two sides of a box body 1; a sliding electric push rod 41 is fixedly connected in the sliding groove 4; the output end of the sliding electric push rod 41 is fixedly connected with a sliding block 42 which is in sliding connection with the sliding groove 4; a detection shaft 43 is rotatably connected between the two sliding blocks 42, and a detection motor 44 is fixedly connected to the sliding blocks 42; the output end of the detection motor 44 is fixedly connected with the detection shaft 43; the outer side of the detection shaft 43 is sleeved with a detection cylinder 45; the outer side of the detection shaft 43 is uniformly provided with inclined slots 46; the bottom of the inclined groove 46 is fixedly connected with a second pressure sensor 47; a detection spring 48 is fixedly connected between the second pressure sensor 47 and the detection cylinder 45.
In the invention, the extrusion block 2 moves downwards to enable the transmission belt 22 to be in contact with the polyurethane rubber roller, the first pressure sensor 32 connected with the extrusion electric push rod 26 is subjected to pressure, then the extrusion block 2 moves downwards with the transmission belt 22 to extrude the polyurethane rubber roller, at the moment, the pressure on the first pressure sensor 32 is increased, and the controller adds the pressure values of the two first pressure sensors to obtain the pressure value of the polyurethane rubber roller subjected to extrusion, so that the invention can detect the pressure of the polyurethane rubber roller subjected to extrusion in real time in the ozone aging test process;
in the invention, before the transmission belt 22 contacts with the polyurethane rubber roller, the controller controls the sliding electric push rod 41 to push the sliding block 42, so that the detection cylinder 45 on the sliding block 42 contacts with the transmission belt 22, then the detection motor 44 drives the detection shaft 43 to rotate, so that the detection shaft 43 pulls the detection cylinder 45 to rotate through the detection spring 48, the detection cylinder 45 drives the transmission belt 22 and the metal flywheel 23 to rotate, and a worker introduces current into the reluctance coil 24 through the controller and changes the resistance by adjusting the current; the detecting spring 48 transmits the tensile force of the detecting cylinder 45 to the second pressure sensor 47, and the sum of the tensile forces received by all the second pressure sensors 47 is the resistance at this time, so that before the ozone aging test is carried out on the polyurethane rubber roller, the resistance of the conveying belt 22, the metal flywheel 23 and the reluctance coil 24 is detected and calibrated, whether the current flowing into the reluctance coil 24 through the controller corresponds to the resistance actually generated or not is detected, and after the detection and calibration are completed, the controller controls the sliding block 42 to be far away from the conveying belt 22, so that the detecting cylinder 45 is separated from the conveying belt 22;
according to the invention, when the first pressure sensor 32 detects that the conveyor belt 22 is in contact with the polyurethane rubber roller, the pressure on the polyurethane rubber roller is detected, and before the ozone aging test is carried out on the polyurethane rubber roller, the resistance of the conveyor belt 22, the metal flywheel 23 and the reluctance coil 24 is detected and calibrated through the detection shaft 43, the detection cylinder 45 and the detection spring 48, and whether the current is fed into the reluctance coil 24 through the controller corresponds to the resistance actually generated is detected, so that the accuracy of the pressure and tangential acting force on the polyurethane rubber roller is ensured, and the accuracy of the test result is ensured.
Embodiment two: on the basis of the first embodiment, referring to fig. 2, 4 and 6 of the specification, in the invention, a supporting block 5 is uniformly and slidably connected to a supporting frame 14, and a fixing screw 51 is screwed to the supporting frame 14; the fixing screw 51 can press the supporting block 5 to fix the supporting block 5; one side of the supporting block 5 is rotatably connected with a belt pulley 52, and the other side is rotatably connected with a clamping block 53; the belt pulley 52 is fixedly connected with the clamping block 53; the output end of the driving motor 15 is also fixedly connected with a belt pulley 52; the pulley 52 is provided with a belt 54.
In the invention, a tension spring 55 is fixedly connected to a support frame 14, and a pulling block 56 is connected to the support frame 14 in a sliding manner; the stretching spring 55 is fixedly connected with the pulling block 56; pulley 52 is also rotatably connected to pull block 56.
In the invention, the clamping block 53 is round, and a transverse groove 57 is formed on the clamping block 53; clamping screws 58 are symmetrically and threadedly connected to two sides of the transverse groove 57 on the clamping block 53; one end of the clamping screw 58 is located in the transverse slot 57.
In the invention, a positioning disc 59 is arranged in the transverse groove 57; concentric circle scales are marked on the positioning disc 59; the center of the positioning disk 59 coincides with the center of the clamping block 53.
In the invention, the two ends of the polyurethane rubber roller are respectively placed into the transverse grooves 57 of the clamping blocks 53 by a worker, then the polyurethane rubber roller is moved, so that the end part of the polyurethane rubber roller is aligned to the positioning disc 59 and positioned in the most proper circle on the concentric circle scale on the positioning disc 59, the end part of the polyurethane rubber roller is positioned by the worker through the positioning disc 59, the end part of the polyurethane rubber roller is aligned to the circle center of the clamping blocks 53, and then the worker screws the clamping screw 58, so that the clamping screw 58 clamps the end part of the polyurethane rubber roller, thereby fixing the polyurethane rubber roller; in the invention, when the polyurethane rubber rollers with different thicknesses are fixed on the clamping blocks 53, the round shape on the positioning disc 59 corresponding to the end part of the polyurethane rubber roller is correspondingly changed, and the positioning screw rods extend out of different lengths to clamp the polyurethane rubber rollers, so that the polyurethane rubber rollers with different thicknesses can be fixed on the clamping blocks 53;
in the invention, after the clamping blocks 53 clamp polyurethane rubber rolls with different thicknesses, the positions of the clamping blocks 53 are synchronously adjusted, a worker unscrews the fixed screw 51 and slides the supporting blocks 5, so that the tops of all the polyurethane rubber rolls keep the same horizontal line, and therefore, the clamping blocks 53 move downwards, and the pressure can be kept consistent when the conveying belt 22 contacts the polyurethane rubber rolls;
in the invention, the tension spring 55 and the pulling block 56 are arranged on the supporting frame 14, so when the belt 54 is loosened after the up-down position of the supporting block 5 is adjusted, the tension spring 55 pulls the pulling block 56, so that the belt pulley 52 on the pulling block 56 tightens the belt 54, and when the belt 54 is tightened, the pulling block 56 moves upwards, so that the belt 54 is loosened, and the pulling block 56 compensates the tightness of the belt 54;
according to the invention, the positioning disc 59 is aligned with the position of the polyurethane rubber roller on the clamping block 53, and the clamping screw rods 58 on the clamping block 53 clamp the two ends of the polyurethane rubber roller, so that the polyurethane rubber roller can be aligned with the circle center position of the clamping block 53 rapidly and accurately when the polyurethane rubber rollers with different specifications are clamped, the polyurethane rubber roller is prevented from deviating from the circle center of the clamping block 53, and eccentric vibration is generated when the polyurethane rubber roller is driven by the clamping block 53 to rotate, so that the use effect of the polyurethane rubber roller is improved.
Embodiment III: an ozone aging test method for polyurethane product detection is suitable for the ozone aging test device for polyurethane product detection, and comprises the following steps:
s1, a worker puts a polyurethane rubber roller into a clamping block 53, clamps the polyurethane rubber roller through a clamping screw 58, then closes a cabin door of the box body 1, and the ozone mechanism 11, the temperature mechanism 12 and the humidity mechanism 13 adjust the ozone concentration, the temperature and the humidity in the box body 1 to the environment required by a test;
s2, the extrusion block 2 moves downwards with the rotating shaft 21, the transmission belt 22 and the metal flywheel 23, the transmission belt 22 is in contact with the polyurethane rubber roller, and the transmission belt 22 extrudes the polyurethane rubber roller downwards, so that the polyurethane rubber roller receives downward pressure, and the polyurethane rubber roller drives the transmission belt 22 to rotate;
s3, current is introduced into the reluctance coil 24, the magnetic field generated by the reluctance coil 24 has an obstruction effect on the rotation of the metal flywheel 23, the obstruction effect acts on the polyurethane rubber roller through the transmission belt 22, so that the polyurethane rubber roller receives acting force in the tangential direction, and the situation of the polyurethane rubber roller in the process of conveying objects is simulated; after the test is completed, the invention is closed, the cabin door is opened, and the polyurethane rubber roller is taken out.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims; the scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An ozone aging test device for polyurethane product detection, comprising: a case (1); an ozone mechanism (11), a temperature mechanism (12) and a humidity mechanism (13) are arranged in the box body (1); the ozone mechanism (11) is used for generating ozone in the box body (1); the temperature mechanism (12) and the humidity mechanism (13) are used for adjusting the temperature and the humidity in the box body (1);
the method is characterized in that: a supporting frame (14) is symmetrically and fixedly connected in the box body (1); a driving motor (15) is fixedly connected to the supporting frame (14); the polyurethane rubber roller is rotationally connected to the supporting frame (14); the driving motor (15) drives the polyurethane rubber roller to rotate; a pressing mechanism is arranged in the box body (1); the pressing mechanism is used for applying acting force in the horizontal direction and the vertical direction to the polyurethane rubber roller;
the pressing mechanism comprises a pressing block (2), a rotating shaft (21), a conveying belt (22), a metal flywheel (23) and a reluctance coil (24); the side walls of the two sides of the box body (1) are provided with extrusion grooves (25); the extrusion block (2) is connected in the extrusion groove (25) in a sliding way; an extrusion electric push rod (26) is fixedly connected in the extrusion groove (25); the output end of the extrusion electric push rod (26) is connected with the extrusion block (2); two ends of the two rotating shafts (21) are respectively and rotatably connected to the extrusion blocks (2) at two sides of the box body (1); the transmission belt (22) is sleeved on the two rotating shafts (21);
a first linkage rod (27) and a second linkage rod (28) are rotatably connected between the extrusion blocks (2) at two sides of the box body (1); the transmission belt (22) is contacted with the first linkage rod (27) to drive the first linkage rod to rotate; the metal flywheel (23) is fixedly connected to the second linkage rod (28), and gears (29) meshed with each other are fixedly connected to the first linkage rod (27) and the second linkage rod (28); the same supporting rod (3) is fixedly connected between the two extrusion blocks (2); the magnetic resistance coil (24) is fixedly connected to the supporting rod (3), and the magnetic resistance coil (24) is positioned at the side edge of the metal flywheel (23);
a first pressure sensor (32) is fixedly connected to the upper end of the extrusion block (2); the output end of the extrusion electric push rod (26) is fixedly connected with the first pressure sensor (32).
2. The ozone aging test device for detecting polyurethane products according to claim 1, wherein: sliding grooves (4) are formed in two sides of the box body (1); a sliding electric push rod (41) is fixedly connected in the sliding groove (4); the output end of the sliding electric push rod (41) is fixedly connected with a sliding block (42) which is in sliding connection with the sliding groove (4); a detection shaft (43) is rotatably connected between the two sliding blocks (42), and a detection motor (44) is fixedly connected to the sliding blocks (42); the output end of the detection motor (44) is fixedly connected with the detection shaft (43); a detection cylinder (45) is sleeved outside the detection shaft (43); inclined slots (46) are uniformly formed in the outer side of the detection shaft (43); the bottom of the inclined groove (46) is fixedly connected with a second pressure sensor (47); and a detection spring (48) is fixedly connected between the second pressure sensor (47) and the detection cylinder (45).
3. The ozone aging test device for detecting polyurethane products according to claim 2, wherein: the support frame (14) is uniformly and slidably connected with a support block (5), and the support frame (14) is in threaded connection with a fixed screw rod (51); the fixing screw (51) can extrude the supporting block (5) to fix the supporting block (5); one side of the supporting block (5) is rotationally connected with a belt pulley (52), and the other side is rotationally connected with a clamping block (53); the belt pulley (52) is fixedly connected with the clamping block (53); the output end of the driving motor (15) is also fixedly connected with a belt pulley (52); a belt (54) is sleeved on the belt pulley (52).
4. The ozone aging test device for detecting polyurethane products according to claim 3, wherein: the support frame (14) is fixedly connected with a tension spring (55), and the support frame (14) is connected with a pulling block (56) in a sliding manner; the stretching spring (55) is fixedly connected with the pulling block (56); the pulling block (56) is also rotatably connected with a belt pulley (52).
5. The ozone aging test device for detecting polyurethane products according to claim 4, wherein: the clamping block (53) is round, and a transverse groove (57) is formed in the clamping block (53); clamping screws (58) are symmetrically connected with two sides of the transverse groove (57) in a threaded manner on the clamping block (53); one end of the clamping screw (58) is positioned in the transverse groove (57).
6. The ozone aging test device for detecting polyurethane products according to claim 5, wherein: a positioning disc (59) is arranged in the transverse groove (57); a concentric circle scale is marked on the positioning disc (59); the center of the positioning disc (59) coincides with the center of the clamping block (53).
7. An ozone aging test method for detecting polyurethane products, which is suitable for the ozone aging test device for detecting polyurethane products according to any one of claims 1 to 6, and is characterized in that: the method comprises the following steps:
s1, a worker puts a polyurethane rubber roller into a clamping block (53), clamps the polyurethane rubber roller through a clamping screw (58), then closes a cabin door of a box body (1), and an ozone mechanism (11), a temperature mechanism (12) and a humidity mechanism (13) adjust the ozone concentration, the temperature and the humidity in the box body (1) to the environment required by a test;
s2, the extrusion block (2) moves downwards with the rotating shaft (21), the transmission belt (22) and the metal flywheel (23), the transmission belt (22) is in contact with the polyurethane rubber roller, and the polyurethane rubber roller is extruded downwards by the transmission belt (22) so that the polyurethane rubber roller receives downward pressure, and the polyurethane rubber roller drives the transmission belt (22) to rotate;
s3, current is introduced into the reluctance coil (24), a magnetic field generated by the reluctance coil (24) has an obstruction effect on the rotation of the metal flywheel (23), the obstruction effect acts on the polyurethane rubber roller through the transmission belt (22), so that the polyurethane rubber roller receives acting force in the tangential direction, and the situation of the polyurethane rubber roller in the process of conveying objects is simulated; after the test is completed, the invention is closed, the cabin door is opened, and the polyurethane rubber roller is taken out.
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| CN202311274931.6A CN117054319B (en) | 2023-09-28 | 2023-09-28 | Ozone aging test device and method for polyurethane product detection |
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