Inner diameter laser measuring device and method based on thermocouple sampler paper tube processing

Abstract

The invention relates to the technical field of measuring devices, and particularly discloses an inner diameter laser measuring device and method based on thermocouple sampler paper tube processing, and the device comprises a measuring mechanism for measuring the inner diameter of a paper tube, the measuring mechanism comprises a first auxiliary assembly and a tube body, and the outer wall of one end, away from an electric push rod, of the tube body is sleeved with a sleeve; according to the device, paper scraps and the like adhered to the inner wall of a paper tube are scraped off through reciprocating motion of a first annular plate, the torn scraps are drawn away through a first conveying pipe and the like, the amount of the scraps remaining in the paper tube is reduced, and the paper tube is prevented from being scraped off through the first conveying pipe and the like. And a relatively sealed space is formed between the first annular plate and the second annular plate, so that leakage of suction force is reduced, the effect of sucking away chippings is improved, and the influence of the chippings on subsequent laser measurement is reduced.

Description

Technical Field

[0001] This invention relates to the field of measuring device technology, specifically to a laser measuring device and method for inner diameter based on thermocouple sampler paper tube processing. Background Technology

[0002] The thermocouple sampler paper tube is made of high-temperature resistant material, with an outer high-strength paper tube structure and an internal encapsulation of the thermocouple head and protective device. It can maintain stability in extreme high-temperature environments and ensure accurate and reliable temperature measurement data. After production, the inner diameter of the thermocouple sampler paper tube typically needs to be measured to ensure that its dimensions meet assembly and usage requirements. Since the paper tube needs to fit tightly with the thermocouple element or temperature sensor head, an inner diameter that is too small may cause installation difficulties, while an inner diameter that is too large will affect temperature measurement stability or even cause loosening and detachment. Therefore, measuring the inner diameter of the thermocouple sampler paper tube is one of the key quality control points.

[0003] Patent application CN221259799U discloses a paper tube inner diameter measuring device, which is convenient for measuring the inner diameter of paper tubes with large inner diameters and can be applied to the measurement needs of paper tubes with different inner diameters.

[0004] Based on existing technologies, the following problems exist: When measuring the inner diameter of existing thermocouple sampler paper tubes using laser rangefinders, paper scraps and other impurities adhere to the inner wall, affecting the accuracy of subsequent laser measurements. Furthermore, during continuous measurements, these impurities adhere to the laser rangefinder's transmitter, impacting practical use. Moreover, the inner wall of the thermocouple sampler paper tube should not have noticeable paper scraps after manufacturing. During manufacturing, the interior must be kept clean to prevent residues from affecting the installation of the thermocouple element or the accuracy of temperature measurement. Paper scraps remaining on the inner wall may lead to poor contact, temperature measurement delays, or even signal interruption. Referring to the aforementioned application documents, they only perform basic inner diameter measurements using a laser rangefinder, and cannot clean the paper scraps adhering to the laser rangefinder's transmitter, making long-term measurement inconvenient and lacking certain shortcomings. To address these issues, a laser measurement device and method for the inner diameter of thermocouple sampler paper tubes are proposed. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an inner diameter laser measuring device based on thermocouple sampler paper tube processing, comprising a paper tube and a measuring mechanism for measuring the inner diameter of the paper tube, the measuring mechanism comprising: An electric linear actuator has a mounting component fixedly fitted on its telescopic shaft. A tube is fixedly fitted on the side wall of the mounting component. A sleeve is fitted on the outer wall of the tube at the end away from the electric linear actuator. Laser rangefinders are fixedly fitted on both sides of the outer wall of the sleeve. A first auxiliary component is disposed at the end of the tube body away from the electric push rod. A second auxiliary component is disposed on the side of the first auxiliary component away from the tube body. The first auxiliary component includes: A mounting base is fixedly installed at the end of the tube away from the electric push rod. A first electromagnet is fixedly sleeved on the inner wall of the mounting base, and a second electromagnet is sleeved on the inner wall of the mounting base. The sides of the first electromagnet and the second electromagnet that are close to each other are the same magnetic poles. A connecting cylinder is fixedly installed on the side of the second electromagnet away from the first electromagnet. A ring array of fixing members is fixedly installed on the inner wall of the connecting cylinder. A first connecting pipe extending outside the mounting base is fixedly installed on the inner side of the fixing members. A first annular plate is fixedly sleeved at the end of the first connecting pipe outside the mounting base.

[0006] Furthermore, a first groove is provided on the side of the mounting base away from the tube body, and a second groove is provided on the inner wall of the first groove. The inner wall diameter of the second groove is larger than that of the first groove. The first electromagnet and the second electromagnet are both disposed in the second groove, and the second electromagnet can move within the second groove. The connecting cylinder is sleeved in the first groove, and a spline groove arranged in an annular array is provided on the outer wall of the connecting cylinder. A spline block arranged in an annular array is fixed on the inner wall of the first groove and the inner wall of the second annular plate. The spline blocks are respectively placed in the spline groove to restrict the rotation of the connecting cylinder. A third electromagnet is fixedly installed on the inner wall of the second groove away from the first electromagnet, and a fourth electromagnet is fixedly sleeved on the outer wall of the connecting cylinder. The sides of the third and fourth electromagnets that are close to each other are the same magnetic poles. The first, second, third and fourth electromagnets are all designed in a ring shape.

[0007] Furthermore, the first auxiliary component also includes: The second annular plate is fixedly installed on the side of the mounting base away from the tube body. The outer side of the second annular plate is fixedly provided with a first rubber ring. The first rubber ring is arc-shaped and protrudes towards the first annular plate. An annular arc surface is formed on the inner wall of the connecting cylinder near the first annular plate, and the diameter of the inner wall of the connecting cylinder on the annular arc surface gradually decreases from the direction of the connecting cylinder near the first annular plate to the direction of the connecting cylinder away from the first annular plate.

[0008] Furthermore, the inner wall of the connecting cylinder is fixedly sleeved with a first conveying pipe extending into the pipe body. A rubber telescopic tube is fixedly installed at one end of the first conveying pipe located inside the pipe body. A flexible hose is fixedly installed at the end of the rubber telescopic tube away from the first conveying pipe. A second conveying pipe is fixedly installed at the end of the flexible hose away from the rubber telescopic tube. The second conveying pipe extends to the end of the pipe body away from the mounting base.

[0009] Furthermore, the second auxiliary component includes: The third annular plate is rotatably positioned on the side of the first annular plate away from the tube body. An air bladder is fixedly sleeved on the outer wall of the third annular plate, and a second rubber ring is fixedly sleeved on the outer wall of the air bladder. The air bladder has an annular design. The nozzle is fixedly located on the side of the third annular plate away from the first annular plate and facing the inner wall of the paper tube. The air inlet end of the nozzle is fixedly provided with a first guide tube, and the air inlet end of the first guide tube is fixedly provided with an air guide box.

[0010] Furthermore, the second auxiliary component also includes: The second connecting tube is sleeved on the inner wall of the first connecting tube and extends to the side of the first annular plate away from the tube body. The inner wall of the third annular plate is fixedly connected to the outer wall of the second connecting tube. A guide block is fixedly disposed on the inner wall of the second connecting pipe. A third connecting pipe is fixedly sleeved on the inner wall of the pipe body. The third connecting pipe extends along the inner wall of the second connecting pipe to the outside of the second connecting pipe. A guide groove is opened on the inner wall of the third connecting pipe. The guide groove is arc-shaped, and the guide block is placed in the guide groove.

[0011] Furthermore, a first connector is fixedly sleeved on the outer wall of one end of the second connecting pipe located inside the pipe body. Both ends of the first connector penetrate the hose and extend into the pipe body. Both ends of the first connector are sealed to the hose. A through groove is opened on the outer wall of the pipe body for the first connector to rotate radially and move axially along the pipe body. Both ends of the first connector are fixedly connected to the inner wall of the sleeve. The inner wall of the sleeve is fixedly fitted with sealing rings arranged at intervals, and the sealing rings are respectively located at both ends of the first connector.

[0012] Furthermore, a second connector is fixedly sleeved on the outer wall of one end of the third connecting pipe located inside the pipe body. Both ends of the second connector penetrate the second conveying pipe and are fixedly connected to the inner wall of the pipe body. Both ends of the second connector and the second conveying pipe are designed to be sealed. The inner wall of the third connecting pipe is fitted with a second conduit. One end of the second conduit is connected to the air inlet of the air box, and the other end of the second conduit extends to the outside of the second delivery pipe.

[0013] Furthermore, a third conduit is fixedly provided at one end of the second conduit inside the tube body. The third conduit extends outside the tube body, with one end of the third conduit outside the tube body facing the laser ranging sensor. A valve body is provided on the outer wall of the third conduit.

[0014] This invention also provides a method for using the inner diameter laser measuring device based on thermocouple sampler paper tube processing. The method, employing the aforementioned inner diameter laser measuring device based on thermocouple sampler paper tube processing, includes the following steps: S1: Fix the first electric push rod so that the central axis of the tube body and the mounting base coincides with the central axis of the paper tube; S2: When measuring the inner diameter of the paper tube, the tube body, the first auxiliary component and the second auxiliary component are moved into the paper tube by an electric push rod so that the inner diameter of the paper tube can be measured by a laser rangefinder.

[0015] This invention provides a laser measurement device and method for the inner diameter of paper tubes based on thermocouple samplers. Compared with existing technologies, it has the following advantages: 1. The present invention scrapes off paper scraps and other debris adhering to the inner wall of the paper tube by reciprocating the first annular plate, and removes the scraps by the first conveying pipe, thereby reducing the amount of debris remaining in the paper tube and avoiding affecting subsequent inner diameter measurement. Furthermore, by forming a relatively sealed space between the first and second annular plates, the leakage of suction is reduced, thereby improving the effect of debris removal and reducing the impact of debris on subsequent laser measurement.

[0016] 2. This invention cleans the debris or other debris adhering to the inner wall of the paper tube by rubbing the second rubber ring against it. Furthermore, the third annular plate and the first annular plate move in different directions to clean the debris adhering to the inner wall of the paper tube, thereby further improving the cleaning effect. In addition, by controlling the distance of the reciprocating rotation and reciprocating movement, the probability of tearing off large pieces of paper is reduced, thereby reducing damage to the inner wall of the paper tube and minimizing the impact of debris on subsequent laser measurements.

[0017] 3. In this invention, the laser rangefinder moves and rotates accordingly when the third annular plate reciprocates and moves, thereby adjusting the angle of the laser rangefinder and measuring the inner diameter of the paper tube at different positions. This allows for the selection of different positions on the inner wall of the paper tube for inner diameter measurement according to actual measurement needs, thus improving the accuracy of the measurement.

[0018] 4. This invention first uses nozzles to blow air through the inner wall of the paper tube to remove debris and other impurities adhering to the inner wall. Then, the second and first annular plates rub and scrape the inner wall of the paper tube in different directions to remove paper scraps and other debris adhering to the inner wall, thus improving the cleaning effect on the inner wall of the paper tube. Furthermore, the impurities cleaned and blown out are blocked by the first and second rubber rings on the side of the second annular plate closer to the first annular plate, reducing the probability of impurities falling onto the laser rangefinder sensor's emitting end, thereby facilitating the long-term use of the laser rangefinder sensor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the measuring mechanism structure of the present invention; Figure 3 This is a schematic diagram of the transverse cross-sectional structure of the tube body of the present invention; Figure 4This is a schematic cross-sectional view of the pipe body and the second conveying pipe of the present invention. Figure 5 For the present invention Figure 3 A magnified structural diagram of A in the middle; Figure 6 For the present invention Figure 4 A magnified structural diagram of B in the diagram; Figure 7 This is a schematic diagram of the transverse cross-sectional structure of the first conveying pipe of the present invention; Figure 8 This is a schematic diagram of the second connecting pipe, the third connecting pipe, and the guide groove structure of the present invention; Figure 9 For the present invention Figure 8 A magnified structural diagram of C; Figure 10 This is a schematic diagram of the transverse cross-sectional structure of the second connecting pipe of the present invention; Figure 11 This is a schematic cross-sectional view of the second and third connecting pipes of the present invention. Figure 12 For the present invention Figure 11 A magnified structural diagram of A in the diagram.

[0020] The reference numerals in the above figures are: 1. paper tube; 2. measuring mechanism; 21. Electric actuator; 22. Mounting component; 23. Tube body; 24. First auxiliary component; 25. Second delivery pipe; 26. Second auxiliary component; 27. First delivery pipe; 28. Rubber telescopic tube; 29. ​​Sealing ring; 291. Hoses; 292. Sleeve; 293. Third conduit; 294. Laser rangefinder sensor; 241. Mounting base; 242. Second annular plate; 243. Connecting cylinder; 244. Third electromagnet; 245. Fourth electromagnet; 246. Second electromagnet; 247. First electromagnet; 248. First rubber ring; 249. First annular plate; 2491. Fixing component; 2492. Annular arc surface; 2493. First connecting pipe; 261. Second rubber ring; 262. Third annular plate; 263. Air guide box; 264. First guide tube; 265. Nozzle; 266. Airbag; 267. Third connecting pipe; 268. Guide groove; 269. Second connecting pipe; 2691. Second guide tube; 2692. Second connector; 2693. First connector; 2694. Guide block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figures 1-6 A laser measuring device for inner diameter of paper tube based on thermocouple sampler processing includes a paper tube 1 and a measuring mechanism 2 for measuring the inner diameter of the paper tube 1. The measuring mechanism 2 includes: Electric push rod 21, the telescopic shaft of electric push rod 21 is fixedly sleeved with mounting part 22, the side wall of mounting part 22 is fixedly sleeved with tube body 23, the outer wall of the end of tube body 23 away from electric push rod 21 is sleeved with sleeve 292, and laser range sensors 294 are fixedly installed on both sides of the outer wall of sleeve 292. A first auxiliary component 24 is disposed at the end of the tube 23 away from the electric push rod 21. A second auxiliary component 26 is disposed on the side of the first auxiliary component 24 away from the tube 23. The first auxiliary component 24 includes: Mounting base 241 is fixedly disposed at the end of tube body 23 away from electric push rod 21. A first electromagnet 247 is fixedly sleeved on the inner wall of mounting base 241, and a second electromagnet 246 is sleeved on the inner wall of mounting base 241. The sides of the first electromagnet 247 and the second electromagnet 246 that are close to each other are the same magnetic poles. A connecting cylinder 243 is fixedly disposed on the side of the second electromagnet 246 away from the first electromagnet 247. A ring array of fixing members 2491 is fixedly disposed on the inner wall of the connecting cylinder 243. A first connecting pipe 2493 extending outside mounting base 241 is fixedly disposed on the inner side of fixing member 2491. A first annular plate 249 is fixedly sleeved at the end of the first connecting pipe 2493 outside mounting base 241.

[0023] In implementation of this invention, the electric push rod 21 is fixed, and after the electric push rod 21 is fixed, the central axis of the tube body 23 coincides with the central axis of the paper tube 1, thereby causing the electric push rod 21 to drive the tube body 23 and others to move into the paper tube 1. During the movement, the distance from the laser rangefinder 294 to the inner wall of the paper tube 1 is measured by two laser rangefinders 294. The distance information measured by the two laser rangefinders 294 is added to the distance between the two laser rangefinders 294 to obtain the inner diameter of the paper tube 1, thereby measuring the inner diameter of the paper tube 1. The laser rangefinders 294 move with the tube body 23 inside the paper tube 1, thereby measuring different positions inside the paper tube 1, thereby improving the accuracy of the inner diameter measurement of the paper tube 1.

[0024] During the movement of the tube body 23, the first annular plate 249 of the first auxiliary component 24 reciprocates along the axial direction of the tube body 23, thereby scraping away the paper scraps attached or adhering to the inner wall of the paper tube 1. At the same time, the reciprocating movement of the first annular plate 249 drives the third annular plate 262 to reciprocate, thereby driving the airbag 266 and the second rubber ring 261 to rotate against the inner wall of the paper tube 1, so as to remove the impurities attached to the inner wall of the paper tube 1 by friction.

[0025] Please see Figures 5-7 The mounting base 241 has a first groove on the side away from the tube body 23. The inner wall of the first groove has a second groove. The inner wall diameter of the second groove is larger than that of the first groove. The first electromagnet 247 and the second electromagnet 246 are both set in the second groove, and the second electromagnet 246 can move in the second groove. The connecting cylinder 243 is sleeved in the first groove. The outer wall of the connecting cylinder 243 has a spline groove arranged in an annular array. The inner wall of the first groove and the inner wall of the second annular plate 242 are both fixed with spline blocks arranged in an annular array. The spline blocks are placed in the spline groove to restrict the rotation of the connecting cylinder 243. A third electromagnet 244 is fixedly installed on the inner wall of the second groove away from the first electromagnet 247, and a fourth electromagnet 245 is fixedly sleeved on the outer wall of the connecting cylinder 243. The sides of the third electromagnet 244 and the fourth electromagnet 245 that are close to each other are the same magnetic poles. The first electromagnet 247, the second electromagnet 246, the third electromagnet 244 and the fourth electromagnet 245 are all in a ring design.

[0026] The first auxiliary component 24 also includes: The second annular plate 242 is fixedly disposed on the side of the mounting base 241 away from the tube body 23. The outer side of the second annular plate 242 is fixedly provided with a first rubber ring 248. The first rubber ring 248 is arc-shaped and protrudes towards the first annular plate 249. An annular arc surface 2492 is formed on the inner wall of the connecting cylinder 243 near the first annular plate 249, and the diameter of the inner wall of the connecting cylinder 243 located on the annular arc surface 2492 gradually decreases from the direction of the connecting cylinder 243 near the first annular plate 249 to the direction away from the first annular plate 249.

[0027] The inner wall of the connecting cylinder 243 is fixedly fitted with a first conveying pipe 27 extending into the pipe body 23. A rubber telescopic pipe 28 is fixedly installed at one end of the first conveying pipe 27 located inside the pipe body 23. A flexible hose 291 is fixedly installed at the end of the rubber telescopic pipe 28 away from the first conveying pipe 27. A second conveying pipe 25 is fixedly installed at the end of the flexible hose 291 away from the rubber telescopic pipe 28. The second conveying pipe 25 extends to the end of the pipe body 23 away from the mounting base 241.

[0028] In practical implementation, the electric push rod 21 drives the tube body 23 to move into the paper tube 1. During this process, the first electromagnet 247, the second electromagnet 246, the third electromagnet 244, and the fourth electromagnet 245 are energized, causing a repulsive force between the first electromagnet 247 and the second electromagnet 246. This pushes the second electromagnet 246, the fourth electromagnet 245, and the connecting cylinder 243 to move. This, in turn, pushes the first connecting tube 2493 and the first annular plate 249 to move via the fixing member 2491. Subsequently, a repulsive force is generated between the third electromagnet 244 and the fourth electromagnet 245. At the same time, the first electromagnet 247 and the second electromagnet 246 are de-energized, causing the fourth electromagnet 245, the second electromagnet 246, and the connecting cylinder 243 to move in the opposite direction, thereby driving the first annular plate 249 to move in the directional direction. This cycle repeats, thus moving the first annular plate 249. Plate 249 reciprocates along the axial direction of tube 23. During the reciprocating movement of the first annular plate 249, the first annular plate 249 scrapes the inner wall of the paper tube 1, thereby scraping off paper scraps and other debris adhering to the inner wall of the paper tube 1. By controlling the reciprocating distance of the first annular plate 249, large pieces of paper scraps are avoided from being torn off along the paper scrap texture direction when scraping off paper scraps, thus avoiding damage to the paper tube 1. When the torn paper scraps approach the second annular plate 242, they are pushed into the second annular plate 242. At the same time, through the external suction pipe of the second conveying pipe 25, the suction force is transmitted along the second conveying pipe 25, the hose 291, the rubber telescopic pipe 28, and the second conveying pipe 25 to the connecting cylinder 243, the second annular plate 242, and the first annular plate 249, thereby removing the torn scraps and reducing the amount of scraps remaining in the paper tube 1, thus avoiding affecting the subsequent inner diameter measurement. By forming a relatively sealed space between the first annular plate 249 and the second annular plate 242, the leakage of suction is reduced after the second conveying pipe 25 is connected to the external suction pipe, thereby facilitating the removal of debris between the first annular plate 249 and the second annular plate 242 and improving the debris cleaning effect.

[0029] The first rubber ring 248 flexibly connects the second annular plate 242 and the paper tube 1, which facilitates the sealing of the side of the second annular plate 242 close to the first annular plate 249. This reduces the amount of flying debris entering the side of the second annular plate 242 away from the first annular plate 249, thereby reducing the amount of debris entering the laser rangefinder 294 and reducing the probability of debris falling onto the emitting end of the laser rangefinder 294, so as to facilitate long-term monitoring and use of the laser rangefinder 294.

[0030] Example 2, please refer to Figures 6-12 The technical difference between this embodiment and Embodiment 1 is that the second auxiliary component 26 includes: The third annular plate 262 is rotatably disposed on the side of the first annular plate 249 away from the tube body 23. An airbag 266 is fixedly sleeved on the outer wall of the third annular plate 262. A second rubber ring 261 is fixedly sleeved on the outer wall of the airbag 266. The airbag 266 is annular in design. Nozzle 265 is fixedly disposed on the side of the third annular plate 262 away from the first annular plate 249 and facing the inner wall of paper tube 1. The air inlet end of nozzle 265 is fixedly provided with a first conduit 264, and the air inlet end of the first conduit 264 is fixedly provided with an air guide box 263.

[0031] The second auxiliary component 26 also includes: The second connecting pipe 269 is sleeved on the inner wall of the first connecting pipe 2493 and extends to the side of the first annular plate 249 away from the pipe body 23. The inner wall of the third annular plate 262 is fixedly connected to the outer wall of the second connecting pipe 269. The guide block 2694 is fixedly disposed on the inner wall of the second connecting pipe 269. The inner wall of the pipe body 23 is fixedly sleeved with the third connecting pipe 267. The third connecting pipe 267 extends along the inner wall of the second connecting pipe 269 to the outside of the second connecting pipe 269. The inner wall of the third connecting pipe 267 is provided with a guide groove 268. The guide groove 268 is arc-shaped, and the guide block 2694 is placed in the guide groove 268.

[0032] The second connecting pipe 269 is located inside the pipe body 23. The outer wall of one end is fixedly fitted with a first connecting member 2693. Both ends of the first connecting member 2693 pass through the hose 291 and extend into the pipe body 23. Both ends of the first connecting member 2693 are sealed with the hose 291. The outer wall of the pipe body 23 is provided with a through groove for the first connecting member 2693 to rotate radially along the pipe body 23 and move axially along the pipe body 23. Both ends of the first connecting member 2693 are fixedly connected to the inner wall of the sleeve 292. The inner wall of the sleeve 292 is fixedly fitted with sealing rings 29 arranged at intervals, and the sealing rings 29 are respectively located at both ends of the first connector 2693.

[0033] The third connecting pipe 267 is located inside the pipe body 23. The outer wall of one end is fixedly fitted with a second connecting member 2692. Both ends of the second connecting member 2692 pass through the second conveying pipe 25 and are fixedly connected to the inner wall of the pipe body 23. Both ends of the second connecting member 2692 and the second conveying pipe 25 are designed to be sealed. The inner wall of the third connecting pipe 267 is fitted with a second conduit 2691. One end of the second conduit 2691 is connected to the air inlet of the air box 263, and the other end of the second conduit 2691 extends to the outside of the second delivery pipe 25.

[0034] The second conduit 2691 is fixedly provided with a third conduit 293 at one end inside the tube body 23. The third conduit 293 extends to the outside of the tube body 23, and the end of the third conduit 293 outside the tube body 23 faces the laser range sensor 294. A valve body is provided on the outer wall of the third conduit 293.

[0035] In practical implementation, when the first annular plate 249 reciprocates, it drives the third annular plate 262 to reciprocate. Since the third annular plate 262 and the first annular plate 249 are rotatably connected, and the third annular plate 262 drives the guide block 2694 to move along the guide groove 268 during its reciprocating movement, and since the guide groove 268 is arc-shaped, the third annular plate 262 reciprocates and rotates during its reciprocating movement, thereby driving the airbag 266 and the second rubber ring 261 to reciprocate and rotate. This causes the second rubber ring 261 to rub against the inner wall of the paper tube 1, thereby cleaning the debris or other debris attached or adhered to the inner wall of the paper tube 1 through friction. Furthermore, by using the movement of the third annular plate 262 and the first annular plate 249 in different directions to clean the debris attached or adhered to the inner wall of the paper tube 1, the cleaning effect is further improved. Moreover, by controlling the distance of the reciprocating rotation and reciprocating movement, the probability of tearing off large pieces of paper scraps is reduced, thus reducing damage to the inner wall of the paper tube 1.

[0036] When the third annular plate 262 reciprocates and moves, it drives the second connecting pipe 269 to move accordingly. The second connecting pipe 269 drives the sleeve 292 to move and rotate reciprocally through the first connecting member 2693, thereby driving the laser rangefinder 294 to move and rotate accordingly, so as to adjust the angle of the laser rangefinder 294, thereby measuring the inner diameter of the paper tube 1 at different positions. According to the actual measurement requirements, different positions on the inner wall of the paper tube 1 can be selected for inner diameter measurement, thereby improving the accuracy of the measurement.

[0037] Gas is connected to an external air blowing pipe through the second conduit 2691, and then enters the first conduit 264 and nozzle 265 arranged in a ring array through the second conduit 2691 and the air guide box 263. The gas is then ejected through the nozzle 265. Since the nozzle 265 faces the inner wall of the paper tube 1, it blows away impurities and debris from the inner wall of the paper tube 1. The nozzle 265 blows away the debris and other impurities attached to the inner wall of the paper tube 1. Then, the second ring plate 242 and the first ring plate 249 rub and scrape the inner wall of the paper tube 1 in different directions to remove paper scraps and other debris adhering to the inner wall of the paper tube 1, thereby improving the cleaning effect of the inner wall of the paper tube 1. The impurities cleaned and blown away are blocked by the first rubber ring 248 and the second rubber ring 261 on the side of the second ring plate 242 close to the first ring plate 249, reducing the probability of impurities falling on the emitting end of the laser range sensor 294, thus facilitating the long-term use of the laser range sensor 294.

[0038] Air is blown into the emitting end of the laser rangefinder 294 through the third conduit 293 to facilitate cleaning and make it easier to use for actual measurements.

[0039] By integrating the first auxiliary component 24 and the second auxiliary component 26 for cleaning the inner wall of the paper tube 1, as well as the laser rangefinder 294 for measuring the inner diameter of the paper tube 1, onto the tube body 23, it is convenient to measure the inner diameter after cleaning the inner wall of the paper tube 1, thus facilitating actual measurement.

[0040] By designing the hose 291 and providing a through groove on the side wall of the tube body 23 for the first connector 2693 to move, the first connector 2693 can overcome the elastic movement of the hose 291 during reciprocating rotation and movement, thus avoiding affecting the movement of the first connector 2693 and not affecting normal air extraction.

[0041] The design of the rubber telescopic tube 28 ensures stable air extraction during the reciprocating movement of the first arc plate.

[0042] When measuring the inner diameter of the paper tube 1 using the laser rangefinder 294, the reciprocating motion of the first annular plate 249 and the second annular plate 242 can be stopped to facilitate actual measurement. This invention also provides a method for using an inner diameter laser measuring device based on thermocouple sampler paper tube processing. The method includes the following steps: S1: Fix the first electric push rod 21 so that the central axis of the tube body 23 and the mounting base 241 coincides with the central axis of the paper tube 1; S2: When measuring the inner diameter of the paper tube 1, the tube body 23, the first auxiliary component 24 and the second auxiliary component 26 are moved into the paper tube 1 by the electric push rod 21 so as to measure the inner diameter of the paper tube 1 by the laser range sensor 294.

[0043] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser measurement device for the inner diameter of a paper tube based on a thermocouple sampler, comprising a paper tube, characterized in that, It also includes a measuring mechanism for measuring the inner diameter of the paper tube, the measuring mechanism comprising: An electric linear actuator has a mounting component fixedly fitted on its telescopic shaft. A tube is fixedly fitted on the side wall of the mounting component. A sleeve is fitted on the outer wall of the tube at the end away from the electric linear actuator. Laser rangefinders are fixedly fitted on both sides of the outer wall of the sleeve. A first auxiliary component is disposed at the end of the tube body away from the electric push rod. A second auxiliary component is disposed on the side of the first auxiliary component away from the tube body. The first auxiliary component includes: A mounting base is fixedly installed at the end of the tube away from the electric push rod. A first electromagnet is fixedly sleeved on the inner wall of the mounting base, and a second electromagnet is sleeved on the inner wall of the mounting base. The sides of the first electromagnet and the second electromagnet that are close to each other are the same magnetic poles. A connecting cylinder is fixedly installed on the side of the second electromagnet away from the first electromagnet. A ring array of fixing members is fixedly installed on the inner wall of the connecting cylinder. A first connecting pipe extending outside the mounting base is fixedly installed on the inner side of the fixing members. A first annular plate is fixedly sleeved at the end of the first connecting pipe outside the mounting base.

2. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 1, characterized in that, The mounting base has a first groove on the side away from the tube body. The inner wall of the first groove has a second groove. The inner wall diameter of the second groove is larger than that of the first groove. The first electromagnet and the second electromagnet are both disposed in the second groove, and the second electromagnet can move within the second groove. The connecting cylinder is sleeved in the first groove. The outer wall of the connecting cylinder has a spline groove arranged in an annular array. The inner wall of the first groove and the inner wall of the second annular plate are both fixed with spline blocks arranged in an annular array. The spline blocks are placed in the spline grooves to restrict the rotation of the connecting cylinder. A third electromagnet is fixedly installed on the inner wall of the second groove away from the first electromagnet, and a fourth electromagnet is fixedly sleeved on the outer wall of the connecting cylinder. The sides of the third and fourth electromagnets that are close to each other are the same magnetic poles. The first, second, third and fourth electromagnets are all designed in a ring shape.

3. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 2, characterized in that, The first auxiliary component also includes: The second annular plate is fixedly installed on the side of the mounting base away from the tube body. The outer side of the second annular plate is fixedly provided with a first rubber ring. The first rubber ring is arc-shaped and protrudes towards the first annular plate. An annular arc surface is formed on the inner wall of the connecting cylinder near the first annular plate, and the diameter of the inner wall of the connecting cylinder on the annular arc surface gradually decreases from the direction of the connecting cylinder near the first annular plate to the direction of the connecting cylinder away from the first annular plate.

4. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 1, characterized in that, The inner wall of the connecting cylinder is fixedly fitted with a first conveying pipe extending into the pipe body. A rubber telescopic tube is fixedly installed at one end of the first conveying pipe located inside the pipe body. A flexible hose is fixedly installed at the end of the rubber telescopic tube away from the first conveying pipe. A second conveying pipe is fixedly installed at the end of the flexible hose away from the rubber telescopic tube. The second conveying pipe extends to the end of the pipe body away from the mounting base.

5. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 1, characterized in that, The second auxiliary component includes: The third annular plate is rotatably positioned on the side of the first annular plate away from the tube body. An air bladder is fixedly sleeved on the outer wall of the third annular plate, and a second rubber ring is fixedly sleeved on the outer wall of the air bladder. The air bladder has an annular design. The nozzle is fixedly located on the side of the third annular plate away from the first annular plate and facing the inner wall of the paper tube. The air inlet end of the nozzle is fixedly provided with a first guide tube, and the air inlet end of the first guide tube is fixedly provided with an air guide box.

6. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 5, characterized in that, The second auxiliary component also includes: The second connecting tube is sleeved on the inner wall of the first connecting tube and extends to the side of the first annular plate away from the tube body. The inner wall of the third annular plate is fixedly connected to the outer wall of the second connecting tube. A guide block is fixedly disposed on the inner wall of the second connecting pipe. A third connecting pipe is fixedly sleeved on the inner wall of the pipe body. The third connecting pipe extends along the inner wall of the second connecting pipe to the outside of the second connecting pipe. A guide groove is opened on the inner wall of the third connecting pipe. The guide groove is arc-shaped, and the guide block is placed in the guide groove.

7. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 6, characterized in that, The second connecting pipe has a first connecting member fixedly sleeved on the outer wall of one end inside the pipe body. Both ends of the first connecting member pass through the hose and extend into the pipe body. Both ends of the first connecting member are sealed to the hose. The outer wall of the pipe body has a through groove for the first connecting member to rotate radially and move axially along the pipe body. Both ends of the first connecting member are fixedly connected to the inner wall of the sleeve. The inner wall of the sleeve is fixedly fitted with sealing rings arranged at intervals, and the sealing rings are respectively located at both ends of the first connector.

8. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 6, characterized in that, The third connecting pipe is fixedly sleeved on the outer wall of one end of the pipe body with a second connecting member. Both ends of the second connecting member penetrate the second conveying pipe and are fixedly connected to the inner wall of the pipe body. Both ends of the second connecting member and the second conveying pipe are designed to be sealed. The inner wall of the third connecting pipe is fitted with a second conduit. One end of the second conduit is connected to the air inlet of the air box, and the other end of the second conduit extends to the outside of the second delivery pipe.

9. The laser measurement device for inner diameter based on thermocouple sampler paper tube processing according to claim 8, characterized in that, The second conduit has a third conduit fixedly installed at one end inside the tube body. The third conduit extends outside the tube body, with the end of the third conduit outside the tube body facing the laser ranging sensor. A valve body is installed on the outer wall of the third conduit.

10. A method for using a laser measurement device for the inner diameter of a paper tube based on a thermocouple sampler, characterized in that, The method using the inner diameter laser measurement device based on thermocouple sampler paper tube processing as described in any one of claims 1-9 includes the following steps: S1: Fix the first electric push rod so that the central axis of the tube body and the mounting base coincides with the central axis of the paper tube; S2: When measuring the inner diameter of the paper tube, the tube body, the first auxiliary component and the second auxiliary component are moved into the paper tube by an electric push rod so that the inner diameter of the paper tube can be measured by a laser rangefinder.

Images