An EPE thickness measuring device

Abstract

The present invention discloses an EPE thickness measuring device, which relates to the technical field of EPE detection, and includes a thickness measuring device body, a thickness measuring auxiliary mechanism and a thickness detection and warning mechanism. The thickness measuring auxiliary mechanism is connected to one side of the thickness measuring device body, and the thickness detection and warning mechanism is arranged in the middle of the thickness measuring device body; by setting the thickness measuring auxiliary mechanism, the first pressing roller and the second pressing roller can evenly apply an appropriate pressure to the EPE body, making the surface of the EPE flat. By adjusting the height of the second pressing roller, it can ensure that the thickness of the EPE is consistent during each production, avoiding the situation of uneven surface. The precise pressing process not only improves the overall quality of the EPE, but also can avoid subsequent processing problems caused by uneven thickness, such as inaccurate cutting and insecure packaging, thereby improving the production efficiency and the reliability of the final product.

Description

Technical Field

[0001] The present invention relates to the technical field of EPE detection, and particularly to an EPE thickness measuring device. Background Technique

[0002] EPE is a material widely used in the fields of packaging, heat insulation, shock absorption, etc. It has the advantages of light weight, good elasticity, strong pressure resistance, etc. With the advancement of the industrialization process, the production demand for EPE is continuously increasing, and its quality control, especially the accurate measurement of thickness, has become an important link to ensure the quality and function of the final product.

[0003] According to the invention patent with the Chinese patent publication number CN103940395B, whose name is a device and method for measuring the thickness of a high-speed moving long strip of polyurethane foam sheet, it is specifically described that during the production process of the existing soft polyurethane foam long strip sheet, there is no thickness measuring instrument, and when the thickness is uneven, it cannot be measured and processed in time. By the time the thickness problem is found in the final product, a large number of unqualified products have already been produced. The composition of the present invention includes: a bracket (5), a high-precision sensor (2) and a high-point demarcator (1) are installed on the bracket. The high-point demarcator is in contact with the surface of the running long strip sheet. The high-precision sensor is connected to a signal converter (3), and the signal converter is connected to a PLC control interface (4). The high-precision sensor is connected to the high-point demarcator. The present invention is used for measuring the thickness of a soft polyurethane foam long strip sheet.

[0004] In the traditional EPE production process, surface unevenness, air bubbles or irregular structures are common problems. When there are undulations on the surface of EPE, it is difficult for the thickness measuring instrument to maintain uniform contact with its surface, resulting in inaccurate measurement results. Due to the elastic and morphological characteristics of the EPE material itself, the surface irregularities will affect the contact situation of the measuring instrument, and further lead to deviations in the thickness readings. If there are air bubbles, wrinkles or other structural problems on the surface of EPE, the instrument may miss the thickness changes in some areas during measurement, or be unable to obtain uniform data due to the inability to accurately contact the surface, thus affecting the final quality control and subsequent processing. Such uneven surfaces will not only lead to inaccurate thickness measurements, but also affect the subsequent processing accuracy, such as cutting, packaging and other links, resulting in inconsistent product sizes and affecting the quality and reliability of the final product.

[0005] Traditional thickness measurement methods are usually carried out after production is completed. Each measurement requires the production line to stop, which means that during each measurement, the production process will be temporarily interrupted, greatly reducing production efficiency. Especially in large-scale production, this manual measurement method consumes a lot of time, affecting the continuity and efficiency of the production line. During the production process, any downtime may cause delays, resulting in an unstable production rhythm, affecting the delivery date, and may lead to an increase in production costs. Moreover, traditional manual measurement cannot monitor the thickness change of the EPE in real time, resulting in a lag in the production process. When there is a problem with the thickness, the production line has continued to run, and a large number of unqualified products may be produced. Since the thickness cannot be detected and adjusted in real time, the problem is often discovered at the back end of the production line, and even the best correction timing may be missed, causing irreparable losses. In addition, manual operation is easily affected by the experience and judgment of the operator, and human errors are likely to occur, resulting in inaccurate thickness data and it is difficult to ensure the quality consistency of each batch of products.

[0006] Therefore, we propose a device for measuring the thickness of EPE to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of the present invention is to provide a device for measuring the thickness of EPE to solve the problems of inaccurate thickness and low production efficiency caused by the uneven surface and lagged measurement of the traditional method.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A device for measuring the thickness of EPE, including the main body of the thickness measurement device, a thickness measurement auxiliary mechanism, and a thickness detection and warning mechanism. The thickness measurement auxiliary mechanism is connected to one side of the main body of the thickness measurement device, the thickness detection and warning mechanism is arranged in the middle of the main body of the thickness measurement device, and the top of the main body of the thickness measurement device is provided with the EPE main body;

[0009] Thickness measurement auxiliary mechanism, the thickness measurement auxiliary mechanism includes a first extrusion roller, a second extrusion roller, and a flattening plate. The first extrusion roller and the second extrusion roller are used to extrude the EPE main body, and the flattening plate can flatten the EPE main body;

[0010] The main body of the thickness measurement device includes a detection wheel, an audible and visual alarm, and a Hall sensor. The detection wheel can detect the thickness of the EPE main body. When the detection wheel stops rotating, the Hall sensor will activate the audible and visual alarm to give an alarm, reminding that the thickness of the EPE main body is inconsistent.

[0011] Preferably, an installation frame is provided at the bottom of the first extrusion roller. The top end of the installation frame is fixedly connected with an adjustment frame. Both ends of the first extrusion roller are rotatably connected to the inner wall of the adjustment frame. Two adjustment blocks are vertically slidably connected to the inner wall of the adjustment frame. Both ends of the second extrusion roller are respectively rotatably connected to the inner sides of the two adjustment blocks. Compression springs are rotatably connected to the top ends of the two adjustment blocks. One side of the thickness measuring device body is connected with an EPE production machine, and one side of the EPE production machine is connected with a cooling device.

[0012] Preferably, the top end of each compression spring is rotatably connected with a screw rod. The top ends of the two screw rods are fixedly connected with adjustment handles. The tops of the two screw rods are threadedly connected to the adjustment frame. One side of the inner wall of the adjustment frame is connected with a temperature control switch.

[0013] Preferably, a cooling device is provided on the outer side of the EPE production machine. The cooling device is electrically connected to the temperature control switch. Both side walls of the installation frame are fixedly connected with connecting plates. One ends of the two connecting plates are respectively fixedly connected to both side walls of the thickness measuring device body.

[0014] Preferably, a first transmission wheel is rotatably connected to the outer side of the adjustment frame. The first transmission wheel is fixedly connected with one end of the first extrusion roller. A second transmission wheel is provided on one side of the first transmission wheel. A transmission belt is sleeved between the first transmission wheel and the second transmission wheel.

[0015] Preferably, a conveyor belt is connected to the middle of the thickness measuring device body. A support is fixedly connected to one side wall of the thickness measuring device body. A motor is fixedly connected to the top end of the support. The output end of the motor is fixedly connected with an output shaft. The second transmission wheel is fixedly sleeved on the middle of the output shaft. The middle of the top end of the support is fixedly connected with a base. A first gear and a second gear are respectively rotatably connected to the inner side of the base. The first gear and the second gear mesh with each other. The bottom of the EPE body is placed on the top end of the conveyor belt.

[0016] Preferably, one end of the output shaft penetrates through the base and is fixedly connected with the central axis of the second gear. A limiting column is fixedly connected to the outer wall of the first gear. A support arm is rotatably connected to the outside of the limiting column. The bottom end of the support arm is rotatably connected with a transmission rod. A limiting seat is fixedly connected to the inner side of the support. The transmission rod is vertically slidably connected to the inner wall of the limiting seat. A support plate is fixedly connected to the inner side of the limiting seat. The support plate is fixedly connected to the inner wall of the support. A stabilizing seat is fixedly connected to one side of the top end of the support. The bottom end of the transmission rod is fixedly connected with a bottom plate. Two buffer springs are fixedly connected to the bottom end of the bottom plate. The top end of the flattening plate is fixedly connected to the bottom ends of the two buffer springs.

[0017] Preferably, thickness gauges are connected to both sides of the inner wall of the thickness measuring device body. Mounting plates are fixedly connected to the outsides of the two thickness gauges. Scale plates are fixedly connected to the insides of the two mounting plates. Adjusting rods are threadedly connected to the upper and lower ends of the two mounting plates. One end of each adjusting rod is rotatably connected to a return spring. One end of each return spring is fixedly connected to a limiting plate. Each detection wheel is rotatably connected to the inside of each limiting plate.

[0018] Preferably, fixing pieces are fixedly connected to the outsides of each detection wheel. Magnetic attraction pieces are fixedly connected to the outsides of each fixing piece. Hall sensors are provided on one side of each magnetic attraction piece. Each magnetic attraction piece is electrically connected to each Hall sensor. Expansion rods are fixedly connected to the outsides of each Hall sensor. One end of each expansion rod is fixedly connected to the outside of each mounting plate.

[0019] Preferably, indicating plates are fixedly connected to the insides of each limiting plate. The indicating plates are slidably connected to the outer walls of the scale plates. The Hall sensors are electrically connected to the sound and light alarm.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Through the thickness measurement auxiliary mechanism provided by the present invention, the first pressing roller and the second pressing roller can evenly apply appropriate pressure to the EPE body, making the surface of the EPE flat. By adjusting the height of the second pressing roller, it can ensure that the thickness of the EPE is consistent during each production, avoiding the situation of uneven surface. The precise pressing process not only improves the overall quality of the EPE, but also can avoid subsequent processing problems caused by uneven thickness, such as inaccurate cutting and insecure packaging, thereby improving the production efficiency and the reliability of the final product.

[0022] 2. Through the thickness measurement auxiliary mechanism provided by the present invention, the flattening plate repeatedly hammers the EPE body through the action of the buffer spring and the transmission system, effectively eliminating the air bubbles and irregular structures on the surface of the EPE. This hammering and flattening effect can greatly improve the surface quality of the EPE, making it more flat and smooth, avoiding thickness measurement errors caused by uneven surface or affecting subsequent processing. In addition, through the slapping process, the internal stress of the EPE can be reduced, reducing deformation during transportation or storage, thereby improving the stability and service life of the EPE.

[0023] 3. Through the thickness detection and warning mechanism provided in the present invention, with a precise thickness measurement device, the thickness change of the EPE can be monitored in real time to ensure that the thickness of each section of the EPE meets the standard. When the thickness of the EPE does not meet the standard, the Hall sensor automatically triggers the sound and light alarm to remind the operator to make adjustments immediately, thus preventing unqualified products from flowing into the production line. This device not only improves the accuracy of thickness measurement but also reduces human error through an automated process, ensuring the consistency and quality reliability of the EPE products and further enhancing the control ability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of the front view structure in a device for measuring the thickness of EPE according to the present invention;

[0025] Figure 2 It is a perspective view of one side of a device for measuring the thickness of EPE according to the present invention;

[0026] Figure 3 It is a sectional view of the structure of the main body of the thickness measurement device in a device for measuring the thickness of EPE according to the present invention;

[0027] Figure 4 It is a schematic view of the structure of the mounting frame part in a device for measuring the thickness of EPE according to the present invention;

[0028] Figure 5 It is for a device for measuring the thickness of EPE according to the present invention Figure 4 Enlarged view at A;

[0029] Figure 6 It is a schematic view of the structure of a part of the gear in a device for measuring the thickness of EPE according to the present invention;

[0030] Figure 7 It is for a device for measuring the thickness of EPE according to the present invention Figure 6 Enlarged view at B;

[0031] Figure 8 It is a schematic view of the structure of the mounting plate part in a device for measuring the thickness of EPE according to the present invention;

[0032] Figure 9 It is a schematic view of the structure of the detection wheel part in a device for measuring the thickness of EPE according to the present invention;

[0033] Figure 10 It is for a device for measuring the thickness of EPE according to the present invention Figure 9 Enlarged view at C.

[0034] In the figure: 1. EPE production machine; 2. Thickness measurement device body; 3. Cooling device; 4. Thickness measurement auxiliary mechanism; 401. Support; 402. Installation frame; 403. Adjustment frame; 404. Adjustment handle; 405. First gear; 406. Connecting plate; 407. First extrusion roller; 408. Second extrusion roller; 409. First transmission wheel; 410. Adjustment block; 411. Screw; 412. Compression spring; 413. Transmission rod; 414. Limit post; 415. Support arm; 416. Base; 417. Output shaft; 418. Support plate; 419. Buffer spring; 420. Flattening plate; 421. Limit seat; 422. Second gear; 423. Stabilizing seat; 424. Second transmission wheel; 425. Transmission belt; 426. Motor; 427. Base plate; 5. Thickness detection and warning mechanism; 501. Thickness measurer; 502. Installation plate; 503. Detection wheel; 504. Acousto-optic alarm; 505. Scale plate; 506. Indicator plate; 507. Expansion rod; 508. Adjustment rod; 509. Hall sensor; 510. Return spring; 511. Limit plate; 512. Fixed piece; 513. Magnetic sheet; 6. EPE body; 7. Temperature control switch; 8. Conveyor belt. Detailed implementation mode

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to the attached Figure 1 - attached Figure 10 As shown, this embodiment also discloses EPE production equipment, including an EPE production machine 1 and an EPE thickness measurement device. The EPE thickness measurement device includes a thickness measurement device body 2, a thickness measurement auxiliary mechanism 4, and a thickness detection and warning mechanism 5. The thickness measurement auxiliary mechanism 4 is connected to one side of the thickness measurement device body 2, the thickness detection and warning mechanism 5 is arranged in the middle of the thickness measurement device body 2, and an EPE body 6 is arranged on the top of the thickness measurement device body 2;

[0037] The thickness measurement auxiliary mechanism 4 includes a first extrusion roller 407, a second extrusion roller 408, and a flattening plate 420. The first extrusion roller 407 and the second extrusion roller 408 are used to extrude the EPE body 6, and the flattening plate 420 can flatten the EPE body 6;

[0038] The main body 2 of the thickness measuring device includes a detection wheel 503, an acoustic-optic alarm 504, and a Hall sensor 509. The detection wheel 503 can detect the thickness of the EPE main body 6. When the detection wheel 503 stops rotating, the Hall sensor 509 will activate the acoustic-optic alarm 504 to give an alarm, reminding that the thickness of the EPE main body 6 is inconsistent.

[0039] Example 1, according to Figures 1 - 7As shown, an installation frame 402 is provided at the bottom of the first extrusion roller 407. The top end of the installation frame 402 is fixedly connected with an adjustment frame 403. Both ends of the first extrusion roller 407 are rotatably connected to the inner wall of the adjustment frame 403. Two adjustment blocks 410 are vertically slidably connected to the inner wall of the adjustment frame 403. Both ends of the second extrusion roller 408 are respectively rotatably connected to the inner sides of the two adjustment blocks 410. Compression springs 412 are rotatably connected to the top ends of the two adjustment blocks 410. One side of the thickness measuring device body 2 is connected to an EPE production machine 1. One side of the EPE production machine 1 is connected to a cooling device 3. The top end of each compression spring 412 is rotatably connected to a screw rod 411. The top ends of the two screw rods 411 are fixedly connected with adjustment handles 404. The tops of the two screw rods 411 are threadedly connected to the adjustment frame 403. One side of the inner wall of the adjustment frame 403 is connected to a temperature control switch 7. A cooling device 3 is provided outside the EPE production machine 1. The cooling device 3 is electrically connected to the temperature control switch 7. Both side walls of the installation frame 402 are fixedly connected with connecting plates 406. One ends of the two connecting plates 406 are respectively fixedly connected to both side walls of the thickness measuring device body 2. A first transmission wheel 409 is rotatably connected to the outside of the adjustment frame 403. The first transmission wheel 409 is fixedly connected to one end of the first extrusion roller 407. A second transmission wheel 424 is provided on one side of the first transmission wheel 409. A transmission belt 425 is sleeved between the first transmission wheel 409 and the second transmission wheel 424. A conveyor belt 8 is connected to the middle of the thickness measuring device body 2. A support 401 is fixedly connected to one side wall of the thickness measuring device body 2. A motor 426 is fixedly connected to the top end of the support 401. The output end of the motor 426 is fixedly connected with an output shaft 417. The second transmission wheel 424 is fixedly sleeved on the middle of the output shaft 417. A base 416 is fixedly connected to the middle of the top end of the support 401. A first gear 405 and a second gear 422 are respectively rotatably connected to the inside of the base 416. The first gear 405 and the second gear 422 are meshed with each other. The bottom of the EPE body 6 is placed on the top end of the conveyor belt 8. One end of the output shaft 417 penetrates through the base 416 and is fixedly connected to the central axis of the second gear 422. A limiting column 414 is fixedly connected to the outer wall of the first gear 405. An arm 415 is rotatably connected to the outside of the limiting column 414. The bottom end of the arm 415 is rotatably connected to a transmission rod 413. A limiting seat 421 is fixedly connected to the inside of the support 401. The transmission rod 413 is vertically slidably connected to the inner wall of the limiting seat 421. A support plate 418 is fixedly connected to the inside of the limiting seat 421. The support plate 418 is fixedly connected to the inner wall of the support 401. A stabilizing seat 423 is fixedly connected to one side of the top end of the support 401. The bottom end of the transmission rod 413 is fixedly connected with a bottom plate 427. Two buffer springs 419 are fixedly connected to the bottom end of the bottom plate 427. The top end of the flattening plate 420 is fixedly connected to the bottom ends of the two buffer springs 419.

[0040] The effects achieved by the entire Embodiment 1 are as follows: When the user needs to measure or produce the thickness of the EPE body 6, first start the EPE production machine 1, and pass the produced EPE body 6 through the gap between the first pressing roller 407 and the second pressing roller 408. Then, the user adjusts the height of the second pressing roller 408 according to the actual thickness of the EPE body 6 to ensure the flatness of the surface of the EPE body 6. When adjustment is needed, the user can rotate the two adjustment handles 404 simultaneously. The two adjustment handles 404 drive the two screws 411 to rotate respectively. Through the threaded connection with the adjustment frame 403, the two screws 411 drive the two compression springs 412 to be compressed, and then the two adjustment blocks 410 descend, and the second pressing roller 408 presses down to the top of the EPE body 6 to evenly flatten the EPE body 6, avoiding affecting subsequent production and thickness measurement due to uneven surface. Next, the user starts the motor 426. The output end of the motor 426 drives the second transmission wheel 424 to rotate through the output shaft 417. The second transmission wheel 424 drives the first transmission wheel 409 to rotate through the transmission belt 425, thereby driving the first pressing roller 407 to rotate. The first pressing roller 407 further pushes the EPE body 6 through the second pressing roller 408. Due to the elastic force of the compression spring 412, the second pressing roller 408 will not exert excessive pressure on the EPE body 6, avoiding damaging the surface of the EPE body 6. The output shaft 417 of the motor 426 also drives the second gear 422 to rotate. The second gear 422 meshes with the first gear 405. The rotation of the first gear 405 drives the limit post 414 to move, and the limit post 414 further drives the swing arm 415 to swing. The swing of the swing arm 415 transmits the acting force to the transmission rod 413. The transmission rod 413 generates a vertical movement under the restriction of the limit seat 421, and then drives the bottom plate 427 to move. The movement of the bottom plate 427 drives the two buffer springs 419 to move up and down, and the buffer springs 419 drive the flattening plate 420 to move up and down. The flattening plate 420 repeatedly hammers the EPE body 6 to help it flatten and avoid thickness measurement errors.

[0041] It should be noted that when the user needs to measure or produce the thickness of the EPE body 6, first start the EPE production machine 1, and the equipment starts to enter the running state. The user guides the produced EPE body 6 through between the first pressing roller 407 and the second pressing roller 408, so that it enters the preliminary shaping and leveling channel. Since the EPE body 6 has certain elasticity and surface softness, if no preliminary pressing treatment is carried out, surface undulations, bubbles or bending are very likely to occur, seriously affecting the subsequent process flow and the accuracy of thickness detection. When the screw 411 rotates, it will further compress the compression spring 412 below it. During the elastic deformation process of the compression spring 412, it drives the adjusting block 410 to move downward, so that the second pressing roller 408 moves downward as a whole with the adjusting block 410. The second pressing roller 408 finally presses against the upper surface of the EPE body 6 to perform flexible flattening on it. Since this mechanism utilizes the buffering characteristics of the spring, it can automatically adapt according to the softness and hardness of the EPE body 6 and local minute fluctuations, avoiding over-extrusion or even surface damage to the material, effectively protecting the material integrity and improving the flatness, providing a good foundation for subsequent processing. The user starts the motor 426. The output end of the motor 426 drives the second driving wheel 424 to rotate through the connected output shaft 417. The second driving wheel 424 is then connected to the first driving wheel 409 through the transmission belt 425 to form a stable power transmission system. The rotation of the first driving wheel 409 drives the first pressing roller 407 to rotate synchronously, and uses the frictional force in contact with the EPE body 6 to continuously push it forward, so that it passes through the second pressing roller 408 at a stable speed to complete the pressing process. The second pressing roller 408 always maintains an appropriate elastic downward pressure. This elastic force is supported by the compression spring 412, which can prevent the surface from being damaged while ensuring that the EPE body 6 is flattened. Power transmission is achieved through meshing between the second driving wheel and the first gear 405. During the rotation of the first gear 405, it drives the limit post 414 to perform a horizontal displacement. The limit post 414 further pushes the support arm 415 connected to one end of it to swing. The reciprocating movement of the support arm 415 simulates a lever-like force transmission path. This acting force is finally transmitted from the support arm 415 to the connected transmission rod 413. Under the restriction and guidance of the limit seat 421, the transmission rod 413 can only perform a linear motion in the vertical direction. Through this structural design, the shaking or lateral deviation of the transmission path is avoided, making the movement more stable and reliable. The transmission rod 413 drives the bottom plate 427 to move up and down. The two buffer springs 419 on the bottom plate 427 expand and contract accordingly, thereby driving the connected smoothing plate 420 to perform a reciprocating movement in the vertical direction. During the working process, the smoothing plate 420 continuously performs flexible beating on the EPE body 6. This continuous and rhythmic mechanical beating can effectively eliminate the micro-bubbles, wrinkles and surface fluctuations formed during the foaming or extrusion process of the material, making it more flat and uniform. Compared with the simple extrusion method, the smoothing action can act on the deeper structure, especially suitable for reshaping the EPE body 6 with certain elasticity and loose structure.Further improve the measurability of the material surface and the stability of subsequent processes, thereby significantly reducing the thickness measurement error caused by surface undulations or local bulges.

[0042] Example 2, according to Figure 1 - Figure 3 and Figures 8 - 10 As shown, thickness measuring devices 501 are connected to both sides of the inner wall of the main body 2 of the thickness measuring device. Mounting plates 502 are fixedly connected to the outer sides of the two thickness measuring devices 501. Scale plates 505 are fixedly connected to the inner sides of the two mounting plates 502. Adjusting rods 508 are threadedly connected to the upper and lower ends of the two mounting plates 502. One end of each adjusting rod 508 is rotatably connected to a return spring 510. One end of each return spring 510 is fixedly connected to a limiting plate 511. Each detection wheel 503 is rotatably connected to the inner side of each limiting plate 511. Fixing pieces 512 are fixedly connected to the outer sides of each detection wheel 503. Magnetic attraction pieces 513 are fixedly connected to the outer sides of each fixing piece 512. Hall sensors 509 are provided on one side of each magnetic attraction piece 513. Each magnetic attraction piece 513 is electrically connected to each Hall sensor 509. Expansion rods 507 are fixedly connected to the outer sides of each Hall sensor 509. One end of each expansion rod 507 is fixedly connected to the outer side of each mounting plate 502. Indicator plates 506 are fixedly connected to the inner sides of each limiting plate 511. The indicator plates 506 are slidably connected to the outer walls of the scale plates 505. The Hall sensors 509 are electrically connected to the sound and light alarm 504.

[0043] The overall effect achieved by the entire Example 2 is as follows: When the user starts the conveyor belt 8, the EPE body 6 is sent into the thickness measuring device through the conveyor belt 8. The user can rotate the adjusting rod 508 to adjust the position of the return spring 510. The return spring 510 drives the limiting plate 511 to approach the EPE body 6, so that the detection wheel 503 closely adheres to the surface of the EPE body 6. By observing the distance between the indicator plate 506 and the scale plate 505, the user can roughly understand the thickness of the EPE body 6. During the movement of the EPE body 6 along the conveyor belt 8, the detection wheel 503 rotates accordingly, driving the fixing piece 512 to move. The magnetic attraction piece 513 on the outer side of the fixing piece 512 is connected to the Hall sensor 509. The Hall sensor 509 counts the number of rotations of the detection wheel 503 in real time to judge the production length of the EPE body 6. When the thickness of the EPE body 6 is insufficient, it will not be able to drive the detection wheel 503 to rotate. At this time, the Hall sensor 509 triggers the sound and light alarm 504 to give an alarm, reminding the user to check and adjust the thickness of the EPE body 6.

[0044] It should be noted that after the user starts the conveyor belt 8, the EPE body 6 is stably and continuously conveyed to the thickness measurement area through the conveying mechanism. The user rotates the adjusting rod 508 to adjust the pre-tightening state of the return spring 510, so that the return spring 510 drives the limiting plate 511 to displace towards the EPE body 6, thereby making the limiting plate 511 push the detection wheel 503 to fit on the surface of the EPE, realizing real-time contact. After the detection wheel 503 is pressed against the EPE body 6, as the EPE moves along the conveyor belt 8, a frictional force is generated between its surface and the detection wheel 503, prompting the detection wheel 503 to rotate. The detection wheel 503 is linked with the magnetic attraction piece 513 through the connected fixing piece 512. A magnetic attraction piece 513 is installed on one side of the fixing piece 512, which can run synchronously with the rotation of the detection wheel 503. The Hall sensor 509 is installed on the fixed structure of the thickness measurement device, adjacent to the running path of the magnetic attraction piece 513. The Hall sensor 509 is a magnetic field sensing element based on the Hall effect principle: when a magnetic object (such as the magnetic attraction piece 513) moves or rotates near the Hall sensor 509, an electric potential difference will be generated inside the sensor, thereby generating an electric signal. This signal can be read by an external control circuit and converted into rotation information or rotation count statistics. In this device, whenever the detection wheel 503 completes one rotation, the magnetic attraction piece 513 moves once with the fixing piece 512 in front of the Hall sensor 509, and the Hall sensor 509 thus generates a pulse signal. The system calculates the rotation speed and cumulative rotation count of the detection wheel 503 by recording the number of pulses within a unit time, thereby accurately judging the moving distance and total length of the EPE body 6. When the thickness of the EPE is normal, the detection wheel 503 can stably maintain frictional contact with its surface and continuously rotate as it moves. The magnetic attraction piece 513 periodically passes by the Hall sensor 509, generating a stable pulse signal. When the thickness of the EPE body 6 is insufficient (such as insufficient foaming, local collapse, or poor extrusion), its surface height will not be able to effectively lift the detection wheel 503 or provide sufficient frictional force, resulting in the detection wheel 503 being unable to rotate or rotating slowly with it. The Hall sensor 509 fails to detect the expected pulse frequency (or the rotation count is zero) within the preset time, and the control system will judge it as the state of "the detection wheel 503 does not rotate". At this time, the Hall sensor 509 sends a "rotation speed loss" or "no rotation" signal to the connected sound and light alarm module through the signal output terminal. After receiving the abnormal signal from the Hall sensor 509, the sound and light alarm 504 is immediately activated, randomly emitting a high-frequency sound and accompanied by flashing warning lights, forming a dual alarm effect, reminding the operator that there may be a problem with the thickness of the current EPE body 6 not meeting the standard, and it is necessary to immediately stop the machine for inspection or readjust the extrusion and smoothing processes.

[0045] The working principle of the entire device is as follows: When the user needs to measure the thickness of the EPE body 6 or produce the EPE body 6, the user first starts the EPE production machine 1 and passes the produced EPE body 6 through the gap between the first pressing roller 407 and the second pressing roller 408. Subsequently, the user can adjust the height of the second pressing roller 408 according to the actual thickness of the EPE body 6 to ensure the flatness of the surface of the EPE body 6. When adjustment is needed, the user can rotate the two adjustment handles 404 simultaneously. The two adjustment handles 404 drive the rotation of the two screw rods 411 respectively. The two screw rods 411 drive the compression of the two compression springs 412 through the threaded connection with the adjustment frame 403, so that the two adjustment blocks 410 descend, and the second pressing roller 408 presses down to the top of the EPE body 6, flattening it evenly to avoid the uneven surface affecting subsequent production and thickness measurement. Next, the user can start the motor 426. The output end of the motor 426 drives the rotation of the second transmission wheel 424 through the output shaft 417. The second transmission wheel 424 drives the rotation of the first transmission wheel 409 through the transmission belt 425, thereby driving the rotation of the first pressing roller 407. The rotation of the first pressing roller 407 will push the EPE body 6 through the second pressing roller 408. Affected by the elastic force of the compression spring 412, the second pressing roller 408 will not exert excessive pressure on the EPE body 6 to avoid damaging its surface. The output shaft 417 of the motor 426 can also drive the rotation of the second gear 422. The second gear 422 meshes with the first gear 405. The rotation of the first gear 405 will drive the movement of the limit post 414. The limit post 414 further drives the swing of the support arm 415. The swing of the support arm 415 is transmitted to the transmission rod 413. The transmission rod 413 generates a vertical movement under the restriction of the limit seat 421, thereby driving the movement of the bottom plate 427. The movement of the bottom plate 427 can drive the up and down movement of the two buffer springs 419, thereby driving the up and down movement of the flattening plate 420. The flattening plate 420 repeatedly hammers the EPE body 6 to achieve its flatness and avoid thickness measurement errors. When the user starts the conveyor belt 8, the EPE body 6 is sent into the thickness measurement device. The user can rotate the adjustment rod 508 to adjust the position of the return spring 510. The return spring 510 drives the limit plate 511 to approach the EPE body 6, making the detection wheel 503 closely fit the surface of the EPE body 6. The user can roughly understand the thickness of the EPE body 6 by observing the distance between the indicator board 506 and the scale board 505. During the movement of the EPE body 6 along the conveyor belt 8, the detection wheel 503 rotates accordingly, driving the movement of the fixing piece 512. The magnetic attracting piece 513 outside the fixing piece 512 is connected to the Hall sensor 509. On the one hand, the Hall sensor 509 counts the number of rotations of the detection wheel 503 in real time to judge the production length of the EPE body 6;On the other hand, when the thickness of the EPE body 6 does not reach the standard, the EPE body 6 will not be able to contact the detection wheel 503 sufficiently, thus unable to drive the detection wheel 503 to rotate. At this time, the Hall sensor 509 will trigger the acoustic-optic alarm 504 to give an alarm, reminding the user to check and adjust the thickness of the EPE body 6 in time. When it is necessary to measure the thickness of the EPE body 6 in detail, the thickness measurer 501 can be started. Although the thickness measurer 501 provides higher measurement accuracy, during the production process, long-term use of this device for continuous measurement may cause wear of the detection end. Therefore, during normal production, in order to avoid excessive wear, it is usually not necessary to frequently start the thickness measurer 501.;

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pearl cotton thickness measuring device, comprising a thickness measuring device body (2), a thickness measurement auxiliary mechanism (4) and a thickness detection warning mechanism (5), characterized in that: The thickness measurement auxiliary mechanism (4) is connected to one side of the thickness measurement device body (2), the thickness detection warning mechanism (5) is arranged in the middle of the thickness measurement device body (2), and the top of the thickness measurement device body (2) is provided with an EPE body (6); The thickness measurement auxiliary mechanism (4) comprises a first squeezing roller (407), a second squeezing roller (408) and a smoothing plate (420), wherein the first squeezing roller (407) and the second squeezing roller (408) are used to squeeze the pearl cotton body (6), and the smoothing plate (420) can smooth the pearl cotton body (6); The thickness measuring device body (2) comprises a detection wheel (503), an audible and visual alarm (504) and a Hall sensor (509); the detection wheel (503) can detect the thickness of the pearl cotton body (6); when the detection wheel (503) stops rotating, the Hall sensor (509) activates the audible and visual alarm (504) to sound an alarm; both sides of the inner wall of the thickness measuring device body (2) are connected to thickness measuring devices (501); the outer sides of the two thickness measuring devices (501) are fixedly connected to mounting plates (502); the inner sides of the two mounting plates (502) are fixedly connected to scale plates (505); the upper and lower ends of the two mounting plates (502) are threadedly connected to adjustment rods (508); one end of each adjustment rod (508) is rotatable. A return spring (510) is rotatably connected to the detection wheel (503), one end of each return spring (510) is fixedly connected to the inner side of each limit plate (511), the outer side of each detection wheel (503) is fixedly connected to a fixing plate (512), the outer side of each fixing plate (512) is fixedly connected to a magnetic sheet (513), one side of each magnetic sheet (513) is provided with a Hall sensor (509), each magnetic sheet (513) is electrically connected to each Hall sensor (509), the outer side of each Hall sensor (509) is fixedly connected to a telescopic rod (507), and one end of each telescopic rod (507) is fixedly connected to the outer side of each mounting plate (502).

2. A pearl cotton thickness measuring device according to claim 1, characterized in that: The bottom of the squeezing roller 1 (407) is provided with a mounting frame (402), the top of the mounting frame (402) is fixedly connected to an adjusting frame (403), both ends of the squeezing roller 1 (407) are rotatably connected to the inner wall of the adjusting frame (403), the inner wall of the adjusting frame (403) is vertically slidably connected to two adjusting blocks (410), both ends of the squeezing roller 2 (408) are rotatably connected to the inner sides of the two adjusting blocks (410), the tops of the two adjusting blocks (410) are rotatably connected to compression springs (412), one side of the thickness measuring device body (2) is connected to an EPE production machine (1), and one side of the EPE production machine (1) is connected to a cooling device (3).

3. A pearl cotton thickness measuring device according to claim 2, characterized in that: The top end of each compression spring (412) is rotatably connected to a screw rod (411), the top ends of the two screw rods (411) are fixedly connected to an adjustment handle (404), the top ends of the two screw rods (411) are threadedly connected to an adjustment frame (403), and one side of the inner wall of the adjustment frame (403) is connected to a temperature control switch (7).

4. A pearl cotton thickness measuring device according to claim 2, characterized in that: Both side walls of the installation frame (402) are fixedly connected with connecting plates (406), and one end of the two connecting plates (406) is respectively fixedly connected to the two side walls of the thickness measuring device body (2).

5. A pearl cotton thickness measuring device according to claim 3, characterized in that: The outer side of the adjustment frame (403) is rotatably connected to a transmission wheel 1 (409), the transmission wheel 1 (409) is fixedly connected to one end of a squeezing roller 1 (407), a transmission wheel 2 (424) is provided on one side of the transmission wheel 1 (409), and a transmission belt (425) is sleeved between the transmission wheel 1 (409) and the transmission wheel 2 (424).

6. A pearl cotton thickness measuring device according to claim 5, characterized in that: The middle part of the thickness measuring device body (2) is connected to a conveyor belt (8); a side wall of the thickness measuring device body (2) is fixedly connected to a support (401); the top end of the support (401) is fixedly connected to a motor (426); the output end of the motor (426) is fixedly connected to an output shaft (417); the second transmission wheel (424) is fixedly sleeved on the middle part of the output shaft (417); the middle part of the top end of the support (401) is fixedly connected to a base (416); the inner side of the base (416) is rotatably connected to a gear 1 (405) and a gear 2 (422); the gear 1 (405) and the gear 2 (422) are meshed with each other; and the bottom of the pearl cotton body (6) is placed on the top end of the conveyor belt (8).

7. A pearl cotton thickness measuring device according to claim 6, characterized in that: One end of the output shaft (417) passes through the base (416) and is fixedly connected to the central axis of the second gear (422); the outer wall of the first gear (405) is fixedly connected to the limit column (414); the outer part of the limit column (414) is rotatably connected to the support arm (415); the bottom end of the support arm (415) is rotatably connected to the transmission rod (413); the inner side of the support (401) is fixedly connected to the limit seat (421); the transmission rod (413) is vertically slidably connected to the limit seat (421). The inner wall of the limit seat (421) is fixedly connected to a support plate (418), the support plate (418) is fixedly connected to the inner wall of the support (401), the top side of the support (401) is fixedly connected to a stabilizing seat (423), the bottom end of the transmission rod (413) is fixedly connected to a bottom plate (427), the bottom end of the bottom plate (427) is fixedly connected to two buffer springs (419), and the top of the smoothing plate (420) is fixedly connected to the bottom ends of the two buffer springs (419).

8. The pearl cotton thickness measuring device according to claim 1, characterized in that: An indication plate (506) is fixedly connected to the inner side of each of the limit plates (511), and the indication plate (506) is slidably connected to the outer wall of the scale plate (505). The Hall sensor (509) is electrically connected to the sound and light alarm (504).

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