CN114235964A - Flaw detection device applied to forming type building material - Google Patents
Flaw detection device applied to forming type building material Download PDFInfo
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- CN114235964A CN114235964A CN202111283182.4A CN202111283182A CN114235964A CN 114235964 A CN114235964 A CN 114235964A CN 202111283182 A CN202111283182 A CN 202111283182A CN 114235964 A CN114235964 A CN 114235964A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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Abstract
The invention discloses a flaw detection device applied to a forming type building material, which belongs to the technical field of nondestructive flaw detection and comprises a support, a transmission mechanism, a flaw detection mechanism and a sorting mechanism, wherein the transmission mechanism is arranged on the support, a detector component and the sorting mechanism are respectively arranged on the transmission mechanism, the transmission mechanism transmits the building material, the flaw detection mechanism is used for detecting the damage of the building material, and the sorting mechanism sorts the building material. The building materials are weighed through a weighing device, the shape of the building materials is identified through induced current, and the purpose of model identification is achieved by combining weighing and induced current identification; the ultrasonic flaw detection and the infrared flaw detection are combined, the damage condition of the building materials can be accurately detected, compared with expensive ray flaw detection equipment, the flaw detection device is simple to operate, convenient to use and low in cost, defective building materials can be sorted by the sorting mechanism, different models can be distinguished, the multifunctional effect of one machine is achieved, the sorting mechanism achieves the automatic sorting, and the labor intensity of workers is reduced.
Description
Technical Field
The invention relates to the technical field of nondestructive inspection, in particular to an inspection detection device applied to a forming type building material.
Background
There are many different flaw detection devices on the market, and the types of these flaw detection devices include radiographic inspection, magnetic particle inspection, ultrasonic inspection, infrared inspection, etc., and these flaw detection devices have respective advantages and disadvantages, for example, the most commonly used radiographic inspection device has the widest applicability and is not limited by materials, but the radiographic inspection equipment is expensive, and a shielding cover needs to be added around the radiographic inspection to reduce the damage of the radiation to workers, and the cost of later-stage equipment maintenance is high.
The principle of magnetic powder inspection is not complex, magnetic powder is covered on the surface of an inspection piece, and the distribution and the direction of a magnetic domain of the inspection piece can be influenced by defects in the material, so that the distribution of the magnetic powder is different; however, damage identification needs to be judged by workers with abundant experience with naked eyes, the automatic flaw detection effect cannot be achieved, magnetic powder flaw detection is suitable for ferromagnetic elements and has large range limitation, the magnetic powder flaw detection only can show the position of a flaw detection piece, the damage depth cannot be judged, and a considerable basis cannot be provided for later-stage process improvement.
The ultrasonic flaw detection is suitable for materials with smooth and flat surfaces, and has simple structure and easy operation; the infrared flaw detection is mainly used for detecting electronic elements, and can easily find abnormal temperature rise caused by short circuit when electrical elements run; therefore, at present, the flaw detection of the metal building materials still has to rely on expensive ray inspection or magnetic powder inspection, so that the labor intensity of workers can not be reduced while the equipment cost is saved.
Disclosure of Invention
The invention aims to provide a flaw detection device applied to a forming type building material, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a flaw detection device applied to a forming type building material comprises a support, a transmission mechanism, a flaw detection mechanism and a sorting mechanism, wherein the transmission mechanism is installed on the support, a flaw detector component and the sorting mechanism are respectively installed on the transmission mechanism, the transmission mechanism conveys the building material, the flaw detection mechanism is used for detecting damage of the building material, the sorting mechanism sorts the building material, and the flaw detection device mainly processes the building material through three links, namely identification of the model of the building material, external flaw detection and internal flaw detection and sorting of the building material; in the identification link of the type of the building material, comprehensively judging the building material by weighing the weight of the building material and measuring the induction current amount; in the flaw detection link, high-frequency alternating current is introduced into a coil to generate an alternating magnetic field, the alternating magnetic field enables magnetic domains in the ferromagnetic material to change rapidly, the magnetic domain changes to drive molecules to rub with each other to generate heat, so that the building material is heated properly, and flaw detection is carried out on the exterior and the interior of the building material through two detection modes of ultrasonic waves and infrared rays; in the sorting link of the building materials, the building materials with the quality problems are separated in a distribution mode, so that the building materials flow to different areas, and the automatic sorting function is realized.
Furthermore, the transmission mechanism comprises a transmission chain, a weighing component and an electric sensing component, the transmission chain comprises a first transmission chain and a second transmission chain, the first transmission chain and the second transmission chain are both arranged on the support, the weighing component is arranged between the first transmission chain and the second transmission chain, the electric sensing component is arranged on the weighing component, the weights of the building materials with different types are different, the building materials are weighed, the models can be preliminarily judged, if the weights of the building materials are the same but the shapes of the building materials are different, the magnetic fluxes of the sections with different shapes are different, the shape of the building materials is judged by measuring the induction current amount generated by cutting the magnetic sensing wire when the building materials move in a magnetic field, and the unique model of the building material is determined according to the weights and the induction current amount; the invention achieves the purpose of model identification by combining two modes of weighing the building material and measuring the induction current of the building material, the model identification plays an important role in the later flaw detection link, the model of the building material comprises the outer contour and the shape information, and a detector for acquiring the model information of the building material can be fully close to a piece to be detected for detection, thereby reducing the influence of the surrounding environment on the detection process and improving the detection precision.
The weighing assembly comprises a bottom plate, the bottom plate is installed between a first transmission chain and a second transmission chain, at least one pair of weighing devices are installed on the bottom plate, a pressure sensor is arranged in each weighing device, the pressure sensor of each weighing device is electrically connected with a control system, each pair of weighing devices are symmetrically arranged, two weighing supports are arranged on each weighing device, tapered rollers are installed on the two weighing supports, one ends, with small diameters, of the tapered rollers installed on each pair of weighing devices are close to each other, the pair of tapered rollers are installed in a mode that the middle is low and the two ends are high, the building materials are kept in the middle of the pair of tapered rollers in the transmission process, and the postures of the building materials are properly adjusted in the weighing process; the weight of the building materials is applied to the tapered rollers, the tapered rollers transmit the weight of the building materials to the pressure sensors in the weighing devices through the weighing supports, the three weighing devices are all in contact with the building materials, the whole weight of the building materials is divided into six parts to be weighed, the weight of the building materials borne by each weighing device is relatively uniform, the building materials are prevented from exceeding the range of a single weighing device, and the initial judgment on the models of the building materials is facilitated by the weight.
Furthermore, the electric induction component comprises two electric brushes and a current inductor, the two electric brushes are arranged on the bottom plate, the two electric brushes are not in contact with each other, each electric brush is connected with a tapered roller on at least one weighing device, the current inductor is arranged below the bottom plate, the current inductor is respectively connected with the electric brushes and a control system circuit, the building material and the tapered rollers are in point contact, so that the whole building material is lapped between the paired tapered rollers, the electric brushes are in contact with the tapered rollers, the electric brushes are simultaneously connected with the current inductor, the building material moves in an alternating magnetic field to cut the magnetic field, induced current is generated in a current inductor loop, the larger the cross section of the building material is, the larger the magnetic flux passing through the cross section is, the stronger the induced current is, and the size of the building material is judged by identifying the intensity of the induced current; the model of the building material is determined according to the weight and the shape of the building material, signal basis is provided for a later flaw detection link, and the flaw detection link is convenient to adjust.
Further, the flaw detection mechanism comprises a heating part and a guide rail, wherein the heating part comprises two coils which are respectively arranged on the side surface of the bottom plate; the guide rail is arranged on the second transmission chain through two guide rail brackets, at least two groups of moving assemblies are arranged on the guide rail, a detection part is arranged on each group of moving assemblies, the moving assemblies move along the guide rail, and the detection parts adjust the distance between the detector and the building materials; the coil, the moving assembly and the detection part are all connected with a control system circuit, and the heating of the building materials is influenced by two factors, namely electromagnetic heating and resistance heating; after the two coils are introduced with high-frequency alternating current, the alternating magnetic fields generated by the two coils have the same direction, the building material passes through the alternating magnetic fields, irregularly arranged magnetic domains in the building material are influenced by the alternating magnetic fields to change the direction ceaselessly, and the magnetic domains change rapidly to drive the material molecules to rub with each other to generate heat; secondly, the building material moves in the alternating magnetic field to generate induction current, the magnitude of the induction current is related to the strength of the alternating magnetic field, the larger the alternating magnetic field strength is, the larger the induction current magnitude generated on the building material is, the resistance heat can be generated when the induction current flows through the material, the building material is heated by the self-generation of the alternating magnetic field and the induction current, the ferromagnetic substance is heated by the high-frequency magnetic field quickly, the material is heated more uniformly, and the heated material radiates infrared rays to the periphery to pretreat the infrared flaw detection.
Further, every group remove the subassembly including removing the frame, servo motor is installed to the top of removing the frame, servo motor and control system circuit connection, remove the symmetry on the frame and install two gears, two the gear divide into master gear and pinion, the master gear is connected with servo motor shaft, the tooth's socket has been seted up on the guide rail corresponds the position of master gear and pinion, master gear and pinion pass through tooth's socket and guide rail meshing transmission, and master gear and pinion symmetry are installed on removing the frame, make and remove the frame and utilize master gear and pinion nestification on the guide rail, make the laminating of removing frame and guide rail closely firm more, and servo motor drives the master gear and rotates, and the master gear cooperatees with the tooth's socket on the guide rail, ensures that the displacement of removing the frame is accurate.
Furthermore, the guide rail is in a closed loop shape, the detector is driven by the moving frame to carry out encircling detection along the guide rail, the guide rail encircles the second transmission chain, the servo motor drives the main gear to rotate, and therefore the moving frame freely moves on the guide rail, the detector can detect the damage condition of each surface of the building materials, the limitation of the detection range caused by the limited stroke of the moving frame on the guide rail during detection is avoided, and the continuity of the detection process is ensured by the guide rail in the closed loop shape.
Furthermore, each group of detection components comprises a gear motor and a rack, the gear motor is connected with a control system circuit, the gear motor is mounted on a movable frame, a shaft of the gear motor is connected with an adjusting gear, the rack is connected with the movable frame in a sliding manner, the adjusting gear is in meshing transmission with the rack, one end of the rack is provided with a detector, the detector comprises an ultrasonic detector and an infrared detector, the ultrasonic detector sends out sound waves, the sound waves collide with the surface of the building material and rebound back to the ultrasonic detector, if the surface of the building material is uneven or defective, the time for the sound waves to reach the normal surface and rebound is faster than that of the defect, and the surface damage condition of the workpiece can be judged by comparing the time difference of the rebound of the sound waves; the infrared detector observes a thermal imaging graph of the heated building material for analysis, the building material radiates from outside to inside along with the time, if the interior of the building material has a defect, the heat loss speed of the defect part is higher than the heat radiation speed of the normal position, so the defect part can be cooled before the surrounding, whether damage exists in the building material and the shape range of the damage can be judged by capturing the change condition of the thermal imaging graph, and in addition, the infrared detector can also be combined with the time for cooling the building material to judge the depth of the damage in the building material; the invention accurately detects the damage condition of the building material by combining ultrasonic flaw detection and infrared flaw detection, thereby saving equipment cost.
Gear motor drives the adjusting gear and rotates, and the adjusting gear drives the rack and reciprocates, and convenient adjustment detector and wait to detect a flaw the distance between the piece, two sets of detectors simultaneous workings, and ultrasonic inspection and infrared flaw detection go on simultaneously, have not only promoted and have explored the precision, also improve the work efficiency of the link of detecting a flaw.
Furthermore, the detector is arranged on the rack through a steering component, the steering component enables the detector to rotate on the rack, and the steering component expands the detection range of the detector, so that the detector can flexibly detect edge corners on building materials.
Further, transport mechanism still includes the third transmission chain, the third transmission chain is installed on the support, letter sorting mechanism includes letter sorting frame, blend stop, distance sensor sets up on the third transmission chain, the sorting frame is erect on the third transmission chain, installs the letter sorting motor on the letter sorting frame, the letter sorting motor shaft is connected with the shifting block, the dog is installed on the third transmission chain, distance sensor and letter sorting motor all with control system circuit connection, and letter sorting mechanism not only can distinguish the building materials of normal and defect, also can be used for distinguishing the building materials of different models, has realized the efficiency of a tractor serves several purposes, and letter sorting mechanism has realized the automation of letter sorting, reduces artifical intensity of labour.
Compared with the prior art, the invention has the following beneficial effects:
1. the building material model identification device has the advantages that the building material is weighed through the weighing device, the shape of the building material is identified by using induced current generated by the building material under an alternating magnetic field, and the weighing and the induced current detection are combined, so that the purpose of identifying the building material model is achieved; the coil is connected with alternating current to generate an alternating magnetic field, the alternating magnetic field is used for heating the ferromagnetic substance, the heating temperature rises rapidly, and the heat distribution is more uniform.
2. The method has the advantages that the ultrasonic detection and the infrared detection are combined, the internal and external flaw detection of the building material is realized, compared with expensive ray flaw detection equipment, the method is more economical, and compared with magnetic powder flaw detection, the infrared detector can also be combined with the time for cooling the building material to judge the damage depth of the internal part of the building material, so that a considerable basis is provided for the subsequent process improvement.
3. The moving assembly freely moves along the guide rail, and the steering component enables the detector to detect the building materials from different angles and detects the damage condition of each surface of the building materials; the detector can be fully close to the piece to be detected for detection, so that the influence of the surrounding environment on the detection process is reduced, and the detection precision is improved; the moving frame moves continuously on the closed-loop guide rail, so that the continuity of the detection process is ensured, and the detection is not interrupted due to the limitation of the travel of the guide rail.
4. The sorting mechanism can distinguish normal and defective building materials and different types of building materials, so that the multifunctional effect of one machine is realized, the sorting mechanism realizes the automation of sorting, and the labor intensity of workers is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an isometric view of an inspection and testing apparatus of the present invention applied to a formed building material;
FIG. 2 is a schematic view of a part of the structure of a flaw detection apparatus applied to a formed construction material according to the present invention;
FIG. 3 is a schematic structural view of a flaw detection apparatus applied to a formed building material according to the present invention;
FIG. 4 is a schematic structural view of a flaw detection apparatus applied to a formed building material according to the present invention;
FIG. 5 is a schematic structural view of a flaw detection apparatus applied to a formed building material according to the present invention;
FIG. 6 is a schematic structural view of a flaw detection apparatus applied to a formed building material according to the present invention;
in the figure: 1. a support; 201. a first transmission chain; 202. a second transmission chain; 203. a third transmission chain; 3. a tapered roller; 4. a weighing device; 5. a weighing bracket; 6. an electric brush; 7. a coil; 8. a rail bracket; 9. a guide rail; 101. a main gear; 102. a pinion gear; 11. a servo motor; 12. a movable frame; 13. a gear motor; 14. an adjusting gear; 15. a rack; 16. a detector; 17. a base plate; 18. a sorting rack; 19. a sorting motor; 20. shifting blocks; 21. and (6) blocking strips.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions:
a flaw detection device applied to a forming type building material comprises a support 1, a transmission mechanism, a flaw detection mechanism and a sorting mechanism, wherein the transmission mechanism is installed on the support 1, a flaw detector component and the sorting mechanism are respectively installed on the transmission mechanism, the transmission mechanism transmits the building material, the flaw detection mechanism carries out damage detection on the building material by utilizing ultrasonic waves and heat, the sorting mechanism sorts the building material, the flaw detection device carries out comprehensive judgment on the model of the building material mainly through identification of the model of the building material, flaw detection outside and inside and sorting of the building material, and weighing of the weight of the building material and a method for measuring the induction current amount; the coil 7 is used for introducing high-frequency alternating current to generate an alternating magnetic field, so that magnetic domains in the ferromagnetic material are rapidly changed, the magnetic domains in the ferromagnetic material are driven to rub with each other to generate heat, the building material is properly heated, and the external and internal of the building material are simultaneously subjected to flaw detection by using two detection modes of ultrasonic waves and infrared rays; and finally, building materials with problematic quality are separated through the sorting mechanism, and the function of automatic sorting is realized.
The transmission mechanism comprises a transmission chain, a weighing component and an inductance component, the transmission chain comprises a first transmission chain 201 and a second transmission chain 202, and the first transmission chain 201 and the second transmission chain 202 are both arranged on the support 1.
The weighing assembly comprises a bottom plate 17, the bottom plate 17 is installed between a first transmission chain 201 and a second transmission chain 202, three weighing devices 4 are installed on the bottom plate 17, a pressure sensor is arranged in each weighing device 4, each pair of weighing devices 4 are oppositely arranged, two weighing supports 5 are arranged on each weighing device 4, a tapered roller 3 is installed between the two weighing supports 5, the tapered rollers 3 on the three weighing devices 4 are divided into two groups, one ends of the two groups of tapered rollers 3 with small diameters are close to each other, the pressure sensor in each weighing device 4 is in circuit connection with a control system (not shown in the figure), the pressure sensor is used for detecting the gravity borne by the weighing devices 4, the pair of tapered rollers 3 are installed into a structure with a low middle and two high ends, and the building material is kept in the middle of the pair of tapered rollers 3 in the transmission process; the weight of the building material is applied to the tapered rollers 3, the tapered rollers 3 transmit the weight of the building material to the weighing devices 4 through the weighing supports 5, the three weighing devices 4 are all in contact with the building material, the whole weight of the building material is weighed by the six weighing devices 4 simultaneously, the building material weight is prevented from exceeding the measuring range of the single weighing device 4, and the measuring result is accurate.
The building material weighing device comprises a weighing component, an electric sensing component and a current sensor (not shown in the figure), wherein the electric sensing component is arranged on the weighing component, the weight of a building material is weighed so as to be convenient for preliminarily judging the type, the electric sensing component comprises two electric brushes 6 and the current sensor (not shown in the figure), the two electric brushes 6 are arranged on a bottom plate 17, the two electric brushes 6 are not mutually contacted, the two electric brushes 6 are respectively contacted with two groups of tapered rollers 3, the current sensor is arranged below the bottom plate 17, the electric brushes 6 are in circuit connection with the current sensor, the current sensor is in circuit connection with a control system, the building material is in point contact with the tapered rollers 3, the electric brushes 6 are in contact with the tapered rollers 3, the electric brushes 6 are simultaneously connected with the current sensor, the building material moves in a cutting magnetic field in an alternating magnetic field, induction current is generated in a loop of the current sensor, and the shape of the building material is judged by identifying the intensity of the induction current; if the weight of the building materials is the same but the shapes are different and the magnetic fluxes of the sections in different shapes are inconsistent, judging the shapes by measuring the induction current amount generated by cutting the magnetic induction lines when the building materials move in a magnetic field, and determining the unique model of the building materials according to the weight and the induction current amount; the model identification plays an important role in the later flaw detection link, the model of the building material comprises the external outline and shape information, and the detector 16 is fully close to the building material to detect according to the signals.
The flaw detection mechanism is connected with a control system circuit and comprises a heating part and a guide rail 9, the heating part comprises two coils 7, and the two coils 7 are respectively arranged on the side surface of the bottom plate 17; the guide rail 9 is installed on the second transmission chain 202 through two guide rail brackets 8, two groups of moving assemblies are arranged on the guide rail 9, a detection component is arranged on each group of moving assemblies, the moving assemblies move along the guide rail 9, the detection components adjust the distance between a detection element and the building materials, the heating of the building materials is influenced by electromagnetic heating and resistance heat, after the two coils 7 are electrified with high-frequency alternating current, the directions of alternating magnetic fields generated by the two coils 7 are the same, the building materials pass through the alternating magnetic fields, the magnetic domains in the building materials change the directions continuously, and the magnetic domains change to drive the molecules of the materials to rub with each other to generate heat; secondly, the building material moves in an alternating magnetic field to generate induction current, and resistance heat can be generated when the induction current flows through the material; the building material is heated by the aid of the alternating magnetic field and the induced current, and pretreatment is performed on infrared flaw detection.
Each group of moving components comprises a moving frame 12, a servo motor 11 is arranged above the moving frame 12, two gears are symmetrically arranged on the moving frame 12, the two gears are divided into a main gear 101 and a secondary gear 102, the main gear 101 is connected with the servo motor 11, tooth grooves are arranged on the guide rail 9 corresponding to the main gear 101 and the secondary gear 102, the main gear 101 and the secondary gear 102 are in meshing transmission with the guide rail 9 through the tooth grooves, the section of the guide rail 9 is in a T shape, the main gear 101 and the secondary gear 102 are respectively positioned on two sides of the T-shaped section, so that the moving frame 12 is tightly and firmly attached to the guide rail 9, the main gear 101 is matched with the tooth grooves on the guide rail 9 to ensure accurate displacement of the moving frame 12, the guide rail 9 is in a closed loop shape, a detector 16 is driven by the moving frame 12 to perform surrounding detection along the guide rail 9 to ensure the continuity of detection, and the detector 16 detects the damage condition of each face of building materials, the detection range is prevented from being limited due to the limited travel of the movable frame 12 on the guide rail 9 during detection.
Each group of detection components comprises a gear motor 13 and a rack 15, the gear motor 13 is installed on the movable frame 12, the gear motor 13 is connected with an adjusting gear 14 through a shaft, the rack 15 is connected with the movable frame 12 in a sliding mode, the adjusting gear 14 is in meshing transmission with the rack 15, the detector 16 is installed on the rack 15 through a steering component (not shown in the figure), and the steering component rotates the detector 16 to enable the detector 16 to flexibly detect edge corners on the building materials; the detector 16 comprises an ultrasonic detector and an infrared detector, the ultrasonic detector emits sound waves, the sound waves collide with the surface of the building material and rebound back to the ultrasonic detector, and the surface damage condition of the workpiece can be judged by comparing the time difference of the rebound of the sound waves; and an infrared detector observes a thermal imaging graph of the heated building material for analysis, the heat loss speed of the defect position is faster than the heat dissipation speed of the normal position, and whether damage exists in the building material or not and the shape range of the damage is judged by capturing the change condition of the thermal imaging graph.
The sorting mechanism comprises a sorting frame 18, a barrier strip 21, a distance sensor, the distance sensor is arranged on a third transmission chain 203, the sorting frame 18 is erected on the third transmission chain 203, a sorting motor 19 is installed on the sorting frame 18, the sorting motor 19 is connected with a shifting block 20 through a shaft, the barrier strip 21 is installed on the third transmission chain 203, the distance sensor and the sorting motor 19 are both connected with a control system circuit, the sorting motor 19 rotates the shifting block 20, the position and the direction of the building materials are changed, the defective building materials flow to different areas, the sorting mechanism can distinguish normal and defective building materials through flaw detection results, and can also distinguish different types of building materials.
The working principle of the invention is as follows:
a building material to be detected is conveyed backwards along a first conveying chain 201, firstly passes through a weighing assembly, the building material moves onto the tapered rollers 3, the building material is kept between six tapered rollers 3 on the three weighing devices 4 along with the conveying of the tapered rollers 3, the gravity of the building material is exerted on the tapered rollers 3, the tapered rollers 3 transmit the gravity of the building material to the weighing devices 4 through the weighing brackets 5, pressure sensors in the weighing devices 4 record the weight information of the building material, and as the three weighing devices 4 are used, the building material is contacted with each tapered roller 3, therefore, the total weight of the building materials is measured separately, the weight of the building materials borne by each weighing device 4 is relatively even, the weight of the building materials is prevented from exceeding the measuring range of the weighing devices 4, the weighing is more accurate, and comparing the weight information with the previously set weight data to preliminarily judge the model of the building material.
The pressure sensor in the weighing device 4 detects a signal of the weight of the building material, the weight signal starts the heating component by using the control system, the two coils 7 on the left side and the right side of the bottom plate 17 are introduced with high-frequency current, the two coils 7 generate alternating magnetic fields with the same direction, the building material moves in the alternating magnetic fields, a large number of magnetic domains exist in ferromagnetic substances, the magnetic domains are disordered under the condition of no magnetic field interference, the magnetic domains in the material are rapidly changed under the action of the alternating magnetic fields, the changed magnetic domains disturb molecules to rub, and the building material is heated by using friction heat.
The tapered rollers 3 keep the position of the building material unchanged, and meanwhile, the building material and the tapered rollers 3 are also ensured to be in a point contact state, each group of tapered rollers 3 on the bottom plate 17 are in contact with one electric brush 6, the two electric brushes 6 are connected with a current inductor, and the building material, the tapered rollers 3, the electric brushes 6 and the current inductor form a current loop; the building material is heated and moves along the rotating direction of the tapered roller 3, the building material cuts the alternating magnetic field, and induced current is generated in the building material; the building materials of different models have different contour shapes and different cross sections, namely the magnetic fluxes passing through the cross sections are different, the more the magnetic fluxes, the larger the induced current, the less the magnetic flux and the smaller the induced current, and the current inductor judges the shape of the building materials by identifying the magnitude of the induced current generated by the building materials and comparing the magnitude with the previously set data, and simultaneously judges the model of the current building materials by combining the weight information of the building materials and the magnitude of the induced current.
The building materials after model identification and heating flow onto the second transmission chain 202, the weight of the building materials cannot be sensed by the pressure sensor in the weighing device 4, the control system starts the flaw detection mechanism to perform flaw detection on the building materials, the flaw detection mechanism receives information related to the model of the building materials, the control system starts the servo motor 11 to drive the main gear 101 to rotate, the main gear 101 and the pinion gear 102 are meshed with tooth grooves formed in the guide rail 9 to drive the moving component to freely move on the guide rail 9, so that the ultrasonic detector and the infrared detector detect the damage condition of each surface of the building materials, the control system simultaneously starts the gear motor 13 to drive the adjusting gear 14 to rotate, the adjusting gear 14 drives the rack 15 to move up and down, according to the contour information of the building materials, the distance between the detector 16 and the building materials is adjusted in real time, the influence of the surrounding environment on the detection process is reduced, and the flaw detection precision is improved; the ultrasonic detector sends out sound waves, the sound waves collide with the surface of the building material and rebound back to the ultrasonic detector, if the surface of the building material is uneven or defective, the sound waves reach the normal surface and the rebound time is faster than that of the defect, and the surface damage condition of the workpiece can be judged by comparing the rebound time difference of the sound waves; the infrared detector observes a thermal imaging graph of the heated building material for analysis, the building material radiates from outside to inside along with the time, if the interior of the building material has a defect, the heat loss speed of the defect part is higher than the heat radiation speed of the normal position, therefore, the defect part can be cooled before the surrounding, whether damage exists in the building material and the shape range of the damage can be judged by capturing the change condition of the thermal imaging graph, and in addition, the infrared detector can also be combined with the time for cooling the building material to judge the depth of the damage in the building material.
After the flaw detection link is finished, the building materials continuously flow backwards into the third conveying chain 203, a distance sensor is mounted on the third conveying chain 203, after the distance sensor senses the building materials, the control system starts the sorting motor 19, the sorting mechanism starts to work, the sorting motor 19 rotates the shifting block 20 to shift the normal building materials and the damaged building materials to different areas, the control system controls the distance sensor to identify the sequence of the building materials on the conveying chain by calculating the flowing time of the building materials on the conveying chain, so that the sorting mechanism is prevented from selecting the wrong building materials, and the automatic sorting function is realized.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a be applied to detection device that detects a flaw of shaping formula building material which characterized in that: including support (1), transmission device, mechanism of detecting a flaw, letter sorting mechanism, transmission device installs on support (1), the defectoscope component and letter sorting mechanism install respectively on transmission device, and transmission device conveys the building materials, and the mechanism of detecting a flaw utilizes ultrasonic wave and heat to detect the damage of building materials, and letter sorting mechanism selects separately the building materials.
2. The flaw detection device applied to the forming type building material according to claim 1, characterized in that: the conveying mechanism comprises a conveying chain, a weighing component and an electric sensing component, the conveying chain comprises a first conveying chain (201) and a second conveying chain (202), the first conveying chain (201) and the second conveying chain (202) are both installed on the support (1), the weighing component is installed between the first conveying chain (201) and the second conveying chain (202), the electric sensing component is installed on the weighing component, the weighing component weighs the building materials, and the electric sensing component measures induced current generated by the building materials.
3. The flaw detection device applied to the forming type building material according to claim 2, characterized in that: the weighing assembly comprises a bottom plate (17), the bottom plate (17) is installed between a first transmission chain (201) and a second transmission chain (202), at least one pair of weighing devices (4) are installed on the bottom plate (17), and each weighing device (4) is electrically connected with a control system;
each pair of weighing devices (4) are symmetrically arranged, two weighing brackets (5) are arranged on each weighing device (4), tapered rollers (3) are mounted on the two weighing brackets (5), and the ends, with small diameters, of the tapered rollers (3) mounted on each pair of weighing devices (4) are close to each other.
4. The flaw detection device applied to the forming type building material according to claim 3, characterized in that: the electric induction assembly comprises two electric brushes (6) and a current inductor, the two electric brushes (6) are arranged on a bottom plate (17), the two electric brushes (6) are not in contact with each other, each electric brush (6) is connected with a tapered roller (3) on at least one weighing device (4), the current inductor is arranged below the bottom plate (17), and the current inductor is respectively in circuit connection with the electric brushes (6) and a control system;
the flaw detection mechanism comprises a heating part, the heating part comprises two coils (7), the two coils (7) are respectively arranged on the side surface of the bottom plate (17), and the coils (7) are in circuit connection with the control system.
5. The flaw detection device applied to the forming type building material according to claim 4, characterized in that: the flaw detection mechanism further comprises a guide rail (9), the guide rail (9) is mounted on the second transmission chain (202) through two guide rail supports (8), at least two groups of moving assemblies are arranged on the guide rail (9), a detection part is arranged on each group of moving assemblies, the moving assemblies move along the guide rail (9), and the detection part adjusts the distance between the detector (16) and the building materials; the moving assembly and the detection component are both connected with a control system circuit.
6. The flaw detection device applied to the forming type building material according to claim 5, characterized in that: every group remove the subassembly including removing frame (12), servo motor (11) are installed to the top of removing frame (12), servo motor (11) and control system circuit connection, remove and install two gears, two on frame (12) the gear divide into master gear (101) and pinion (102), master gear (101) and servo motor (11) hub connection, the tooth's socket has been seted up on guide rail (9) correspond master gear (101) and pinion (102) position, master gear (101) and pinion (102) are through tooth's socket and guide rail (9) meshing transmission.
7. The flaw detection device applied to the forming type building material according to claim 6, characterized in that: the guide rail (9) is in a closed loop shape, and the detector (16) is driven by the moving frame (12) to carry out surrounding detection along the guide rail (9).
8. The flaw detection device applied to the forming type building material according to claim 6, characterized in that: every group the detection part includes gear motor (13), rack (15), gear motor (13) and control system circuit connection, and gear motor (13) are installed on removing frame (12), install adjusting gear (14) on gear motor (13), rack (15) and removal frame (12) sliding connection, adjusting gear (14) and rack (15) meshing transmission, detector (16) are installed to the one end of rack (15), detector (16) include ultrasonic detector and infrared detector.
9. The flaw detection device applied to the forming type building material according to claim 8, characterized in that: the detector (16) is mounted on the rack (15) by means of a steering member which rotates the detector (16) on the rack (15).
10. The flaw detection device applied to the forming type building material according to claim 2, characterized in that: the transmission mechanism further comprises a third transmission chain (203), and the third transmission chain (203) is installed on the bracket (1);
the sorting mechanism comprises a sorting frame (18), a blocking strip (21) and a distance sensor, the distance sensor is arranged on a third transmission chain (203), the sorting frame (18) is erected on the third transmission chain (203), a sorting motor (19) is installed on the sorting frame (18), a shifting block (20) is connected with the shaft of the sorting motor (19), the blocking strip (21) is installed on the third transmission chain (203), and the distance sensor and the sorting motor (19) are both connected with a control system circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283182.4A CN114235964A (en) | 2021-11-01 | 2021-11-01 | Flaw detection device applied to forming type building material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283182.4A CN114235964A (en) | 2021-11-01 | 2021-11-01 | Flaw detection device applied to forming type building material |
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| CN114235964A true CN114235964A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111283182.4A Withdrawn CN114235964A (en) | 2021-11-01 | 2021-11-01 | Flaw detection device applied to forming type building material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673232A (en) * | 2023-08-01 | 2023-09-01 | 杭州灵西机器人智能科技有限公司 | Composite nondestructive testing method and system for sorting complex workpieces and storage medium |
-
2021
- 2021-11-01 CN CN202111283182.4A patent/CN114235964A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673232A (en) * | 2023-08-01 | 2023-09-01 | 杭州灵西机器人智能科技有限公司 | Composite nondestructive testing method and system for sorting complex workpieces and storage medium |
| CN116673232B (en) * | 2023-08-01 | 2023-11-14 | 杭州灵西机器人智能科技有限公司 | Composite nondestructive testing method and system for sorting complex workpieces and storage medium |
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