A paper tube size detection device and its usage method

Abstract

This invention relates to the field of paper tube testing equipment technology, and discloses a paper tube size testing device and its usage method. The device includes a testing box with several support legs fixedly connected to its bottom. A fixing plate is fixedly connected to one side wall of the testing box, and a drive motor is fixedly connected to the end of the fixing plate away from the testing box. In this invention, the rotating threaded rod drives a testing sliding block to move along an auxiliary sliding rod towards the middle of the paper tube. At this time, the testing sliding block drives a contact-type testing head on a telescopic testing column to move towards the inner wall of the paper tube. The contact-type testing head on the telescopic testing column then performs inner diameter contact measurement on the middle of the paper tube. This arrangement allows the contact-type testing head to avoid the inner walls at both ends of the paper tube during testing, and the middle of the paper tube is less prone to deformation. Therefore, the inner diameter data measured in the middle of the paper tube is more accurate.

Description

Technical Field

[0001] This invention relates to the field of paper tube testing equipment technology, specifically to a paper tube size testing device and its usage method. Background Technology

[0002] For electronic components and optical elements requiring high-precision protection, paper tubes must possess extremely high precision. Examples include optical fibers, circuit boards, and optical glass. These components typically need to be precisely wound and packaged, requiring strict control of the paper tube dimensions to ensure the product is not damaged during transportation and storage. The errors in inner diameter and wall thickness must be controlled very precisely, usually within ±0.05mm, to ensure the stability of these precision components. Therefore, the inner diameter of the paper tube needs to be inspected during the production process.

[0003] In the process of measuring the inner diameter of paper tubes, most existing testing devices only measure the inner walls at both ends of the paper tube. Since the two ends of the paper tube are prone to collisions and deformation, measuring the two ends of the paper tube will lead to inaccurate measurement dimensions. Summary of the Invention

[0004] The purpose of this invention is to provide a paper tube size detection device and its usage method to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a paper tube size detection device and its usage method, comprising a detection chamber, a plurality of support legs fixedly connected to the bottom of the detection chamber, a fixing plate fixedly connected to one side wall of the detection chamber, a drive motor fixedly connected to the end of the fixing plate away from the detection chamber, an output shaft fixedly connected to the output end of the drive motor, a detection cylinder fixedly connected to the central shaft inside the detection chamber, and a feed inlet opened at the end of the detection chamber away from the drive motor, and further comprising:

[0007] The inner diameter detection mechanism includes a detection threaded rod fixedly connected to the end of the output shaft away from the drive motor. A detection sliding block is rotatably connected to the end of the detection threaded rod near the detection housing. Several telescopic detection columns are fixedly connected to the side wall of the detection sliding block. A contact detection head is fixedly connected to the end of the telescopic detection column away from the detection sliding block.

[0008] Furthermore, the inner diameter detection mechanism also includes a calibration block fixedly connected to the end of the detection cylinder near the drive motor. The contact detection head is pressed against the inner wall of the calibration block. An auxiliary slide rod is fixedly connected to the inner wall of the detection box. The detection sliding block is slidably connected to the auxiliary slide rod. A return spring is sleeved on the end of the auxiliary slide rod away from the calibration block. A sliding sleeve is slidably connected to the auxiliary slide rod. The sliding sleeve is fixedly connected to one end of the return spring.

[0009] Furthermore, several fixed auxiliary mechanisms are provided at both ends of the detection cylinder. The fixed auxiliary mechanism includes a gear one fixedly connected to the end of the output shaft away from the drive motor. Several rotating columns are rotatably passed through the side wall of the detection box. A gear two is fixedly connected to the end of the rotating column near the gear one. The gear two meshes with the gear one.

[0010] Furthermore, the fixed auxiliary mechanism also includes a threaded groove in the middle of the gear, sliding rings slidably connected to both ends of the detection cylinder, the sliding rings being rotatably connected to the threaded grooves on the rotating column, several fixed grooves being opened at both ends of the detection cylinder, several sliding frames being fixedly connected to the outer wall of the detection cylinder corresponding to the fixed grooves, and a fixed sliding block being slidably connected to the side of the sliding frame away from the detection cylinder.

[0011] Furthermore, the fixed auxiliary mechanism also includes several fixed telescopic rods fixedly connected to the bottom of the fixed sliding block. A clamping spring is fitted on the end of the fixed telescopic rod away from the fixed sliding block. A fixed base is fixedly connected to the end of the fixed telescopic rod away from the fixed sliding block. The fixed base is slidably connected inside the fixed groove. Several balls are embedded in the bottom of the fixed base. Several connecting rods are rotatably connected to the side of the sliding ring near the sliding frame. The end of the connecting rod away from the sliding ring is rotatably connected to the fixed sliding block.

[0012] Furthermore, a rotation auxiliary mechanism is provided in the middle of the rotating column. The rotation auxiliary mechanism includes several auxiliary grooves opened on the side wall of the detection cylinder. Several push rods are fixedly connected to the end of the sliding ring away from the connecting rod. A compression spring is sleeved on the rotating column. The compression spring is fixedly connected to one side of the sliding ring. A rotating groove block is fixedly connected to the side wall of the rotating column corresponding to the auxiliary groove.

[0013] Furthermore, the rotating auxiliary mechanism also includes an air cylinder fixedly connected to the side of the rotating groove block near the sliding ring, a sliding plate fixedly connected to the end of the push rod away from the sliding ring, the sliding plate being slidably connected inside the air cylinder, an air bag fixedly connected inside the rotating groove block, a flexible friction plate fixedly connected to the side wall of the air bag, and several air inlet pipes fixedly passing through the side of the air bag near the air cylinder.

[0014] A paper tube size detection device and its usage method include the following steps:

[0015] Step 1: Proceed to the detection site for further detection;

[0016] Step 2: Assist in securing the paper tube;

[0017] Step 3: Assist in rotating the paper tube;

[0018] Step 4: Calibration of the tested area.

[0019] The present invention has the following beneficial effects:

[0020] (1) In this invention, when using the detection device, the paper tube to be tested is first pushed into the detection tube along the feed port on the side wall of the detection box. At this time, the output end of the drive motor rotates, which drives the output shaft to rotate. The rotation of the output shaft drives the detection threaded rod to rotate. The rotation of the detection threaded rod drives the detection sliding block to move along the auxiliary sliding rod towards the middle of the paper tube. At this time, the detection sliding block drives the contact detection head on the telescopic detection column to move towards the inner wall of the paper tube. At this time, the contact detection head on the telescopic detection column makes contact measurement of the inner diameter of the middle of the paper tube. This setting is beneficial to make the contact detection head avoid the inner walls at both ends of the paper tube for detection. The middle of the paper tube is not easily deformed. Therefore, the inner diameter data of the middle of the paper tube is more accurate.

[0021] (2) In this invention, when the detection sliding block drives the contact detection head on the telescopic detection column to move along the auxiliary slide rod to the middle of the paper tube, the detection sliding block and the sliding sleeve on the sliding sleeve are pressed together. The sliding sleeve is pressed along the auxiliary slide rod to press the return spring. When the detection sliding block disengages from the thread on the detection threaded rod, the detection sliding block stops sliding on the auxiliary slide rod. After the contact detection head has finished detecting, the output end of the drive motor is reversed. At this time, the return spring pushes the detection sliding block back into the thread on the detection threaded rod. At this time, the detection threaded rod drives the detection sliding block to move towards the end closer to the drive motor. When the contact detection head on the detection sliding block returns to the inside of the calibration block, the contact detection head contacts the inner wall of the calibration block. Since the calibration block is a standard part with a known inner diameter, the measurement accuracy of the contact detection head can be determined by reading the computer. This setting is conducive to timely calibration of the contact detection head, thereby improving the detection accuracy of the detection device.

[0022] (3) In this invention, by setting a fixed auxiliary mechanism, when the paper tube is being tested, the output shaft rotates, which drives gear one to rotate. Gear one rotates, which drives the rotating column on gear two to rotate. The rotating column rotates, which drives the sliding ring to move along the thread groove. At this time, the sliding ring moves along the outer wall of the test tube towards the middle of the test tube. The sliding ring drives the fixed sliding block at one end of the connecting rod to move downward along the sliding frame. The downward movement of the fixed sliding block drives the fixed base at one end of the fixed telescopic rod to move towards the outer wall of the paper tube. At this time, the ball on the fixed base is pressed against the outer wall of the paper tube. This setting is conducive to fixing the two ends of the paper tube with the ball, thereby ensuring that the axis of the paper tube is aligned with the axis of the test tube, avoiding the paper tube from shaking when rotating inside the test tube, thereby ensuring that the contact detection head can stably measure the inner diameter of the paper tube.

[0023] (4) In this invention, by setting a rotating auxiliary mechanism, the sliding ring moves along the threaded groove, which drives the sliding plate at one end of the push rod to move along the inner wall of the air cylinder towards the end close to the auxiliary groove. At this time, the sliding plate squeezes the gas inside the air cylinder and enters the air bag through the air inlet pipe. At this time, the air bag expands outward, which drives the flexible friction plate to move towards the outer wall of the paper tube. When the air inlet pipe is squeezed against the side wall of the paper tube, on the one hand, the rotating column drives the rotating groove block to rotate, the rotating groove block drives the flexible friction plate to rotate, and the flexible friction plate drives the paper tube to rotate. The rotation of the paper tube is conducive to the contact detection head to fully detect the inner diameter of the paper tube. On the other hand, the pressure of the flexible friction plate on the outer wall of the paper tube is conducive to the stable rotation of the auxiliary paper tube and improves the stability of the paper tube rotation.

[0024] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the cross-sectional structure of the testing chamber of the present invention;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the detection box of the present invention from another perspective;

[0028] Figure 3 This is a schematic diagram of the inner diameter detection mechanism of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged view of A in the middle;

[0030] Figure 5 For the present invention Figure 3 Enlarged view of B in the middle;

[0031] Figure 6 For the present invention Figure 3 Enlarged view of C;

[0032] Figure 7 This is a schematic cross-sectional view of the overall structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the fixed auxiliary mechanism structure of the present invention;

[0034] Figure 9 This is a partial structural diagram of the fixing auxiliary mechanism of the present invention;

[0035] Figure 10 This is a schematic diagram of the rotating auxiliary mechanism of the present invention;

[0036] Figure 11 For the present invention Figure 7 Enlarged view of D;

[0037] Figure 12 For the present invention Figure 10 Enlarged view of E in the middle;

[0038] Figure 13 This is a flowchart of the method of using the present invention.

[0039] The attached diagram lists the components represented by each number as follows:

[0040] In the diagram: 1. Detection box; 11. Support leg; 12. Fixing plate; 13. Drive motor; 14. Output shaft; 15. Detection cylinder; 16. Feed inlet; 2. Inner diameter detection mechanism; 201. Detection thread rod; 202. Detection sliding block; 203. Telescopic detection column; 204. Contact detection head; 205. Calibration block; 206. Auxiliary slide rod; 207. Return spring; 208. Sliding sleeve; 3. Fixed auxiliary mechanism; 301. Gear 1; 302. Rotating column; 303. Gear 2. Threaded groove; 304. Sliding ring; 306. Fixed groove; 307. Sliding frame; 308. Fixed sliding block; 309. Fixed telescopic rod; 310. Clamping spring; 311. Fixed base; 312. Ball bearing; 313. Connecting rod; 4. Rotation auxiliary mechanism; 401. Auxiliary groove; 402. Push rod; 403. Compression spring; 404. Rotating groove block; 405. Air cylinder; 406. Sliding plate; 407. Airbag; 408. Flexible friction plate; 409. Air inlet pipe. Detailed Implementation

[0041] 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.

[0042] Example 1, please refer to Figures 1-5As shown, the present invention is a paper tube size detection device and its usage method, including a detection box 1, a plurality of support legs 11 fixedly connected to the bottom of the detection box 1, a fixing plate 12 fixedly connected to one side wall of the detection box 1, a drive motor 13 fixedly connected to the end of the fixing plate 12 away from the detection box 1, an output shaft 14 fixedly connected to the output end of the drive motor 13, a detection cylinder 15 fixedly connected to the internal central shaft of the detection box 1, and a feed port 16 opened at the end of the detection box 1 away from the drive motor 13, and further including:

[0043] The inner diameter detection mechanism 2 includes a detection threaded rod 201 fixedly connected to the end of the output shaft 14 away from the drive motor 13. A detection sliding block 202 is rotatably connected to the end of the detection threaded rod 201 near the detection housing 1. Several telescopic detection columns 203 are fixedly connected to the side wall of the detection sliding block 202. A contact detection head 204 is fixedly connected to the end of each telescopic detection column 203 away from the detection sliding block 202. The function of this component is that when using the detection device, the paper tube to be detected is first pushed into the detection cylinder 15 along the feed inlet 16 on the side wall of the detection housing 1. At this time, the output end of the drive motor 13 rotates... The output shaft 14 rotates, which in turn drives the detection threaded rod 201 to rotate. The rotation of the detection threaded rod 201 drives the detection sliding block 202 to move along the auxiliary sliding rod 206 toward the middle of the paper tube. At this time, the detection sliding block 202 drives the contact detection head 204 on the telescopic detection column 203 to move toward the inner wall of the paper tube. The contact detection head 204 on the telescopic detection column 203 then performs inner diameter contact measurement on the middle of the paper tube. This arrangement helps the contact detection head 204 to avoid the inner walls at both ends of the paper tube for detection, and the middle of the paper tube is less prone to deformation. Therefore, the measurement of the inner diameter data of the middle of the paper tube is more accurate.

[0044] The inner diameter detection mechanism 2 also includes a calibration block 205 fixedly connected to the end of the detection cylinder 15 near the drive motor 13. The contact detection head 204 is pressed against the inner wall of the calibration block 205. An auxiliary slide rod 206 is fixedly connected to the inner wall of the detection box 1. The detection sliding block 202 is slidably connected to the auxiliary slide rod 206. A return spring 207 is sleeved on the end of the auxiliary slide rod 206 away from the calibration block 205. A sliding sleeve 208 is slidably connected to the auxiliary slide rod 206. One end of the sliding sleeve 208 is fixedly connected to the return spring 207. The function of this component is that when the detection sliding block 202 drives the contact detection head 204 on the telescopic detection column 203 to move along the auxiliary slide rod 206 to the middle of the paper tube, the detection sliding block 202 is pressed against the sliding sleeve 208 on the sliding sleeve 208. The sliding sleeve 208 is pressed along the auxiliary slide rod 206 to press the return spring 207. When the sliding block 202 disengages from the thread on the detection threaded rod 201, the detection sliding block 202 stops sliding on the auxiliary sliding rod 206. After the contact detection head 204 finishes its detection, the output end of the drive motor 13 is reversed. At this time, the return spring 207 pushes the detection sliding block 202 back into the thread on the detection threaded rod 201. The detection threaded rod 201 then moves the detection sliding block 202 closer to the drive motor 13. When the contact detection head 204 on the detection sliding block 202 returns to the calibration block 205, the contact detection head 204 contacts the inner wall of the calibration block 205. Since the calibration block 205 is a standard part with a known inner diameter, the measurement accuracy of the contact detection head 204 can be determined by reading the data on the computer. This setup facilitates timely calibration of the contact detection head 204, thereby improving the accuracy of the detection device.

[0045] Example 2 differs from Example 1 in that: Figures 1-13 As shown, several fixed auxiliary mechanisms 3 are provided at both ends of the detection cylinder 15. The fixed auxiliary mechanism 3 includes a gear 301 fixedly connected to the end of the output shaft 14 away from the drive motor 13. Several rotating columns 302 are rotatably passed through the side wall of the detection box 1. A gear 303 is fixedly connected to the end of the rotating column 302 near the gear 301. The gear 303 meshes with the gear 301.

[0046] The fixed auxiliary mechanism 3 also includes a threaded groove 304 opened in the middle of the gear 301. Both ends of the detection cylinder 15 are slidably connected to sliding rings 305. The sliding rings 305 are rotatably connected to the threaded grooves 304 on the rotating column 302. Both ends of the detection cylinder 15 are provided with several fixed grooves 306. Several sliding frames 307 are fixedly connected to the outer wall of the detection cylinder 15 corresponding to the fixed grooves 306. A fixed sliding block 308 is slidably connected to the side of the sliding frame 307 away from the detection cylinder 15.

[0047] The fixed auxiliary mechanism 3 also includes several fixed telescopic rods 309 fixedly connected to the bottom of the fixed sliding block 308. A clamping spring 310 is fitted onto the end of each fixed telescopic rod 309 away from the fixed sliding block 308. A fixed base 311 is fixedly connected to the end of each fixed telescopic rod 309 away from the fixed sliding block 308. The fixed base 311 is slidably connected inside the fixed groove 306. Several ball bearings 312 are embedded in the bottom of the fixed base 311. Several connecting rods 313 are rotatably connected to the side of the sliding ring 305 near the sliding frame 307. The end of each connecting rod 313 away from the sliding ring 305 is rotatably connected to the fixed sliding block 308. The function of this component is that, by setting up the fixed auxiliary mechanism 3, when the paper tube is being detected, the output shaft 14 rotates, driving the gear 301 to rotate, and the gear 301 rotates, driving the gear... The rotating column 302 on wheel 2 303 rotates, and the rotation of the rotating column 302 drives the sliding ring 305 to move along the threaded groove 304. At this time, the sliding ring 305 moves along the outer wall of the detection cylinder 15 towards the middle of the detection cylinder 15. The sliding ring 305 drives the fixed sliding block 308 at one end of the connecting rod 313 to move downward along the sliding frame 307. The downward movement of the fixed sliding block 308 drives the fixed base 311 at one end of the fixed telescopic rod 309 to move towards the outer wall of the paper tube. At this time, the ball bearing 312 on the fixed base 311 is pressed against the outer wall of the paper tube. This arrangement is conducive to fixing the two ends of the paper tube with the ball bearing 312, thereby ensuring that the axis of the paper tube is aligned with the axis of the detection cylinder 15, avoiding the paper tube from shaking when rotating inside the detection cylinder 15, thereby ensuring that the contact detection head 204 can stably measure the inner diameter of the paper tube.

[0048] A rotating auxiliary mechanism 4 is provided in the middle of the rotating column 302. The rotating auxiliary mechanism 4 includes several auxiliary grooves 401 opened on the side wall of the detection cylinder 15. Several push rods 402 are fixedly connected to the end of the sliding ring 305 away from the connecting rod 313. A compression spring 403 is sleeved on the rotating column 302. The compression spring 403 is fixedly connected to one side of the sliding ring 305. A rotating groove block 404 is fixedly connected to the side wall of the rotating column 302 corresponding to the auxiliary groove 401.

[0049] The rotating auxiliary mechanism 4 also includes an air cylinder 405 fixedly connected to the rotating slot block 404 near the sliding ring 305. A sliding plate 406 is fixedly connected to the end of the push rod 402 away from the sliding ring 305. The sliding plate 406 is slidably connected inside the air cylinder 405. An air bag 407 is fixedly connected inside the rotating slot block 404. A flexible friction plate 408 is fixedly connected to the side wall of the air bag 407. Several air inlet pipes 409 are fixedly inserted through the side of the air bag 407 near the air cylinder 405. The function of this component is that, by setting up the rotating auxiliary mechanism 4, the sliding ring 305 moves along the threaded groove 304, causing the sliding plate 406 at one end of the push rod 402 to move along the inner wall of the air cylinder 405 towards... As the end near the auxiliary groove 401 moves, the sliding plate 406 compresses the gas inside the air cylinder 405 and enters the air bag 407 through the air inlet pipe 409. At this time, the air bag 407 expands outward, causing the flexible friction plate 408 to move towards the outer wall of the paper tube. When the air inlet pipe 409 is pressed against the side wall of the paper tube, on the one hand, the rotating column 302 drives the rotating groove block 404 to rotate, the rotating groove block 404 drives the flexible friction plate 408 to rotate, and the flexible friction plate 408 drives the paper tube to rotate. The rotation of the paper tube is beneficial for the contact detection head 204 to fully detect the inner diameter of the paper tube. On the other hand, the pressure of the flexible friction plate 408 on the outer wall of the paper tube is beneficial for the stable rotation of the auxiliary paper tube and improves the stability of the paper tube rotation.

[0050] A paper tube size detection device and its usage method include the following steps:

[0051] Step 1: Proceed to the detection site for further detection;

[0052] Step 2: Assist in securing the paper tube;

[0053] Step 3: Assist in rotating the paper tube;

[0054] Step 4: Calibration of the tested area.

[0055] One specific application of this embodiment is:

[0056] When using this testing device, the paper tube to be tested is first pushed into the testing cylinder 15 along the feed port 16 on the side wall of the testing chamber 1. At this time, the output end of the drive motor 13 rotates, driving the output shaft 14 to rotate. The rotation of the output shaft 14 drives the testing threaded rod 201 to rotate. The rotation of the testing threaded rod 201 drives the testing sliding block 202 to move along the auxiliary slide rod 206 towards the middle of the paper tube. At this time, the testing sliding block 202 drives the contact testing head 204 on the telescopic testing column 203 to move towards the inner wall of the paper tube. At this time, the contact testing head 204 on the telescopic testing column 203 makes contact measurement of the inner diameter of the middle of the paper tube. This setting is beneficial to make the contact testing head 204 avoid the inner walls at both ends of the paper tube for testing. The middle of the paper tube is less prone to deformation, so the measurement of the inner diameter data of the middle of the paper tube is more accurate. When the testing sliding block 202 drives the contact testing head 204 on the telescopic testing column 203 to move along the auxiliary slide rod 206 to the middle of the paper tube, the testing sliding block 202 and the sliding sleeve 208... The sliding sleeve 208 is pressed against the auxiliary slide rod 206, which presses against the return spring 207. When the detection sliding block 202 disengages from the thread on the detection threaded rod 201, the detection sliding block 202 stops sliding on the auxiliary slide rod 206. After the contact detection head 204 finishes detection, the output end of the drive motor 13 is reversed. At this time, the return spring 207 pushes the detection sliding block 202 back into the thread on the detection threaded rod 201. At this time, the detection threaded rod 201 drives the detection sliding block 202 to move closer to the drive motor 13. When the contact detection head 204 on the detection sliding block 202 returns to the inside of the calibration block 205, the contact detection head 204 contacts the inner wall of the calibration block 205. Since the calibration block 205 is a standard part with a known inner diameter, the measurement accuracy of the contact detection head 204 can be determined by reading the computer. This setting is conducive to timely calibration of the contact detection head 204, thereby improving the accuracy of the detection device.

[0057] Simultaneously, by setting a fixed auxiliary mechanism 3, when the paper tube is being tested, the output shaft 14 rotates, driving gear 1 301 to rotate. Gear 1 301 then drives the rotating column 302 on gear 2 303 to rotate. The rotating column 302 drives the sliding ring 305 to move along the threaded groove 304. At this time, the sliding ring 305 moves along the outer wall of the testing cylinder 15 towards the center of the testing cylinder 15. The sliding ring 305 drives the fixed sliding block 308 at one end of the connecting rod 313 to move downward along the sliding frame 307. The downward movement of the fixed sliding block 308 drives the fixed base 311 at one end of the fixed telescopic rod 309 to move towards the outer wall of the paper tube. At this time, the ball bearing 312 on the fixed base 311 presses against the outer wall of the paper tube. This arrangement helps the ball bearing 312 to fix both ends of the paper tube, thereby ensuring that the axis of the paper tube is aligned with the axis of the testing cylinder 15, preventing the paper tube from shaking when rotating inside the testing cylinder 15, thus ensuring... The contact detection head 204 stably measures the inner diameter of the paper tube. By setting a rotating auxiliary mechanism 4, the sliding ring 305 moves along the threaded groove 304, driving the sliding plate 406 at one end of the push rod 402 to move along the inner wall of the air cylinder 405 towards the end close to the auxiliary groove 401. At this time, the sliding plate 406 squeezes the gas inside the air cylinder 405 and enters the air bag 407 through the air inlet pipe 409. At this time, the air bag 407 expands outward, driving the flexible friction plate 408 to move towards the outer wall of the paper tube. When the air inlet pipe 409 is squeezed against the side wall of the paper tube, on the one hand, the rotating column 302 drives the rotating groove block 404 to rotate, the rotating groove block 404 drives the flexible friction plate 408 to rotate, and the flexible friction plate 408 drives the paper tube to rotate. The rotation of the paper tube is conducive to the contact detection head 204 to fully detect the inner diameter of the paper tube. On the other hand, the pressure of the flexible friction plate 408 on the outer wall of the paper tube is conducive to the stable rotation of the paper tube and improves the stability of the paper tube rotation.

[0058] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A paper tube size detection device, comprising a detection box (1), wherein a plurality of support legs (11) are fixedly connected to the bottom of the detection box (1), a fixing plate (12) is fixedly connected to one side wall of the detection box (1), a drive motor (13) is fixedly connected to the end of the fixing plate (12) away from the detection box (1), an output shaft (14) is fixedly connected to the output end of the drive motor (13), a detection cylinder (15) is fixedly connected to the internal central shaft of the detection box (1), and a feed port (16) is provided at the end of the detection box (1) away from the drive motor (13), characterized in that, Also includes: The inner diameter detection mechanism (2) includes a detection threaded rod (201) fixedly connected to the end of the output shaft (14) away from the drive motor (13). The detection threaded rod (201) is rotatably connected to a detection sliding block (202) at the end near the detection box (1). A plurality of telescopic detection columns (203) are fixedly connected to the side wall of the detection sliding block (202). A contact detection head (204) is fixedly connected to the end of the telescopic detection column (203) away from the detection sliding block (202). Both ends of the detection cylinder (15) are provided with several fixed auxiliary mechanisms (3). The fixed auxiliary mechanism (3) includes a gear one (301) fixedly connected to the end of the output shaft (14) away from the drive motor (13). The side wall of the detection box (1) is rotatably connected with several rotating columns (302). The end of the rotating column (302) near the gear one (301) is fixedly connected with a gear two (303). The gear two (303) meshes with the gear one (301). The fixed auxiliary mechanism (3) further includes a threaded groove (304) opened in the middle of the gear (301). Both ends of the detection cylinder (15) are slidably connected to a sliding ring (305). The sliding ring (305) is rotatably connected to the threaded groove (304) on the rotating column (302). Both ends of the detection cylinder (15) are provided with a number of fixed grooves (306). The outer wall of the detection cylinder (15) corresponding to the fixed groove (306) is fixedly connected to a number of sliding frames (307). A fixed sliding block (308) is slidably connected to the side of the sliding frame (307) away from the detection cylinder (15). The fixed auxiliary mechanism (3) further includes several fixed telescopic rods (309) fixedly connected to the bottom of the fixed sliding block (308). A clamping spring (310) is sleeved on one end of the fixed telescopic rod (309) away from the fixed sliding block (308). A fixed base (311) is fixedly connected to one end of the fixed telescopic rod (309) away from the fixed sliding block (308). The fixed base (311) is slidably connected inside the fixed groove (306). Several balls (312) are embedded in the bottom of the fixed base (311). Several connecting rods (313) are rotatably connected to one side of the sliding ring (305) near the sliding frame (307). The end of the connecting rod (313) away from the sliding ring (305) is rotatably connected to the fixed sliding block (308).

2. The paper tube size detection device according to claim 1, characterized in that: The inner diameter detection mechanism (2) also includes a calibration block (205) fixedly connected to one end of the detection cylinder (15) near the drive motor (13). The contact detection head (204) is pressed against the inner wall of the calibration block (205). An auxiliary slide rod (206) is fixedly connected to the inner wall of the detection box (1). The detection sliding block (202) is slidably connected to the auxiliary slide rod (206). A reset spring (207) is sleeved on one end of the auxiliary slide rod (206) away from the calibration block (205). A sliding sleeve (208) is slidably connected to the auxiliary slide rod (206). The sliding sleeve (208) is fixedly connected to one end of the reset spring (207).

3. The paper tube size detection device according to claim 2, characterized in that: A rotating auxiliary mechanism (4) is provided in the middle of the rotating column (302). The rotating auxiliary mechanism (4) includes several auxiliary grooves (401) opened on the side wall of the detection cylinder (15). Several push rods (402) are fixedly connected to one end of the sliding ring (305) away from the connecting rod (313). A compression spring (403) is sleeved on the rotating column (302). The compression spring (403) is fixedly connected to one side of the sliding ring (305). A rotating groove block (404) is fixedly connected to the side wall of the rotating column (302) corresponding to the auxiliary groove (401).

4. The paper tube size detection device according to claim 3, characterized in that: The rotating auxiliary mechanism (4) further includes an air cylinder (405) fixedly connected to the side of the rotating groove block (404) near the sliding ring (305). A sliding plate (406) is fixedly connected to the end of the push rod (402) away from the sliding ring (305). The sliding plate (406) is slidably connected inside the air cylinder (405). An air bag (407) is fixedly connected inside the rotating groove block (404). A flexible friction plate (408) is fixedly connected to the side wall of the air bag (407). Several air inlet pipes (409) are fixedly passed through the side of the air bag (407) near the air cylinder (405).

5. A paper tube size detection device and its method of use, comprising the paper tube size detection device and its method of use as described in claim 4, characterized in that, It includes the following steps: Step 1: Proceed to the detection site for further detection; Step 2: Assist in securing the paper tube; Step 3: Assist in rotating the paper tube; Step 4: Calibration of the tested area.

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