Plastic tarpaulin thickness detection device and process

Abstract

This application discloses a device and process for detecting the thickness of plastic tarpaulins, belonging to the field of equipment for quality inspection of plastic tarpaulins. The device and process include: a thickness measuring mechanism for measuring the thickness of the plastic tarpaulin; the thickness measuring mechanism includes a mounting housing with a through groove, and laser rangefinders mounted on both the upper and lower sides of the mounting housing; a placement frame; a conveying mechanism with two transmission rollers mounted on a first support frame; a limiting mechanism with two adjusting rollers mounted on a second support frame; a calibration component; a chip removal component; and an air-increasing component. This application's technical solution, by setting up adjusting rollers and two sets of upper and lower laser rangefinders, not only greatly reduces the wear on the plastic tarpaulin during measurement, ensuring the quality of the plastic tarpaulin, but also avoids measurement errors caused by a single-sided laser, effectively improving the accuracy of measuring the thickness of the plastic tarpaulin.

Description

Technical Field

[0001] This application relates to the field of equipment for quality testing of plastic tarpaulins, and more specifically, to a device and process for testing the thickness of plastic tarpaulins. Background Technology

[0002] As a crucial material widely used in warehousing, transportation, agriculture, and other fields, the uniformity of plastic tarpaulin thickness directly affects the product's waterproofness, tensile strength, and durability. Therefore, to ensure that the thickness of the plastic tarpaulins produced or purchased meets quality requirements, relevant personnel frequently use plastic tarpaulin thickness testing devices to inspect the thickness.

[0003] The prior art publication CN215114417U provides a spunlace nonwoven fabric thickness monitoring device. This device, by setting up a mounting housing, a laser rangefinder, and a controller, can quickly determine the thickness of the spunlace nonwoven fabric, making it convenient for staff to adjust the process parameters of the equipment, change the thickness, and achieve automated and precise adjustment.

[0004] While the existing technical solutions described above can achieve the relevant beneficial effects through their structure, they still have the following drawbacks: In the process of using these solutions to measure the thickness of tarpaulins, the tarpaulin needs to be completely in contact with the metal plate to ensure measurement accuracy. However, during the movement of the tarpaulin, a certain gap will inevitably exist between the tarpaulin and the metal plate. Furthermore, the metal surface may wear down after long-term use during the movement of the tarpaulin, increasing the coefficient of friction and affecting the smooth passage of the fabric while potentially damaging it. In addition, the aforementioned solutions use airflow to force the tarpaulin to adhere; however, the airflow may disturb the fibers on the fabric surface, affecting the reading accuracy of the laser rangefinder. Therefore, we propose a plastic tarpaulin thickness measurement device and process. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide a plastic tarpaulin thickness detection device and process, which solves the technical problem in the prior art that there will inevitably be gaps between the tarpaulin and the metal plate during the movement of the tarpaulin and that the tarpaulin is easily worn. This not only greatly reduces the wear on the plastic tarpaulin during the measurement process and ensures the quality of the plastic tarpaulin, but also avoids the measurement error caused by unilateral laser, effectively improving the accuracy of measuring the thickness of the plastic tarpaulin.

[0007] 2. Technical Solution

[0008] This application provides a plastic tarpaulin thickness detection device, including:

[0009] A thickness measuring mechanism is used to measure the thickness of a plastic tarpaulin. The thickness measuring mechanism includes a mounting housing with a through groove, and laser rangefinders are installed on both the upper and lower sides of the mounting housing.

[0010] A placement rack, one side of which is rotatably connected to a support rod;

[0011] A conveying mechanism is used to convey plastic tarpaulins. The conveying mechanism includes a first support frame installed on one side of the mounting housing. Two transmission rollers are installed on the first support frame. A drive mechanism is also installed on one side of the first support frame. The drive mechanism is used to drive the two transmission rollers to rotate.

[0012] A limiting mechanism, the limiting mechanism including a second support frame installed on the other side of the mounting housing, the second support frame having two adjusting rollers mounted on it;

[0013] A leveling assembly, wherein the leveling assembly is used to ensure that the tarpaulin located within the mounting housing is configured in a horizontal structure;

[0014] A chip removal assembly for removing material residue from a plastic tarpaulin;

[0015] An air-blowing component is used to blow air into the mounting housing to prevent external dust from entering and affecting the normal operation of the laser rangefinder.

[0016] By adopting the above technical solution, not only can the wear and tear on the plastic tarpaulin during the measurement process be greatly reduced, ensuring the quality of the plastic tarpaulin, but the measurement error caused by unilateral laser can also be avoided, effectively improving the accuracy of measuring the thickness of the plastic tarpaulin.

[0017] As an optional solution to the technical solution of this application, an electric motor is provided, wherein the output end of the electric motor is fixedly connected to one of the transmission rollers;

[0018] The first gear, there are two of them, the first gear is installed on one side of the conveyor roller, and the two first gears are meshed together.

[0019] By adopting the above technical solution, the two transmission rollers can rotate smoothly in opposite directions.

[0020] As an optional solution to the technical solution of this application, the limiting mechanism further includes a reversing component, which is used to drive two adjusting rollers to rotate in the opposite direction to the transmission rollers. The reversing component includes:

[0021] The first drive wheel is fixedly mounted on one of the first gears;

[0022] The second gear is installed at one end of the adjusting roller. The two second gears mesh with each other. One of the second gears is meshed with a third gear on one side. A drive shaft is fixedly installed on one side of the third gear. A second drive wheel is sleeved on the outside of the drive shaft. A first transmission belt is installed on one side of the second drive wheel. The first drive wheel and the second drive wheel are driven by friction with the first transmission belt.

[0023] By adopting the above technical solution, damage to the plastic tarpaulin by the adjusting roller can be avoided. This ensures that the plastic tarpaulin remains straight and also prevents damage caused by excessive tension.

[0024] As an optional solution to the technical solution of this application, the alignment component includes a detection mechanism and a lifting mechanism, wherein the lifting mechanism is used to drive the second support frame to move up and down; the detection mechanism includes:

[0025] The mounting bracket is fixedly installed on one side of the mounting housing;

[0026] Two movable plates, a connecting frame is fixedly installed on the inner side of the movable plates, a contact rod is slidably connected to the inner side of the connecting frame, and a ball is embedded at the end of the contact rod;

[0027] A pressure sensor is fixedly mounted on a movable plate, and the outer end of the contact rod abuts against the detection end of the pressure sensor.

[0028] A driving mechanism is used to drive two movable plates to move linearly.

[0029] By adopting the above technical solution, the position of the plastic tarpaulin can be adjusted in real time, thereby ensuring that the plastic tarpaulin remains horizontal during the thickness measurement process, and fully guaranteeing the consistency and accuracy of the measurement results.

[0030] As an optional solution to the technical solution of this application, the pushing mechanism includes a first bidirectional lead screw rotatably connected to the fixed frame, and the moving plate is threadedly connected to the first bidirectional lead screw; the lifting mechanism includes a plurality of electric push rods, and the output end of the electric push rod is connected and fixed to the second support frame.

[0031] By adopting the above technical solution, the movable plates on both sides can move smoothly towards each other.

[0032] As an optional solution to the technical solution of this application, both the first support frame and the second support frame are equipped with a roller gap adjustment mechanism. The roller gap adjustment mechanism is used to adjust the roller gap between the two transmission rollers and the two adjusting rollers. The roller gap adjustment mechanism includes:

[0033] A slider is slidably mounted on a first support frame and a second support frame, and the transmission roller and the adjusting roller are rotatably connected to the corresponding slider.

[0034] The universal connecting rod is fixedly connected on one side between the transmission roller and the corresponding first gear, and the universal connecting rod on the other side is fixedly connected between the adjusting roller and the corresponding second gear.

[0035] The second bidirectional lead screw is rotatably mounted on the first support frame and the second support frame, and the slider is rotatably connected to the corresponding second bidirectional lead screw.

[0036] By adopting the above technical solution, this technical solution can be applied to plastic tarpaulins of different thicknesses, thereby improving the applicability of this technical solution.

[0037] As an optional solution to the technical solution of this application, the chip removal component includes:

[0038] The induced draft fan has a receiving pipe connected to its suction end.

[0039] The cleaning cylinder is connected to the inner cavity of the receiving pipe. The cleaning cylinder is densely covered with bristles and has multiple dust suction grooves.

[0040] By adopting the above technical solution, the residual raw materials and dust on the surface of the plastic tarpaulin can be brushed off and absorbed, effectively preventing these impurities from affecting the accuracy of laser thickness measurement.

[0041] As an optional solution to the technical solution of this application, the dust removal cylinder is rotatably installed on one side of the receiving pipe, and a third drive wheel is fixedly installed on the end of the receiving pipe and the second gear. A second transmission belt is installed on one side of the second gear, and the third drive wheel and the second transmission belt are driven by friction.

[0042] The above technical solution effectively improves the cleaning effect of plastic tarpaulins.

[0043] As an optional solution to the technical solution of this application, the gas-boosting component includes:

[0044] A filter box is fixedly connected between the air intake end of the induced draft fan and the end of the receiving pipe. A sealing cover is inserted into the filter box, and a filter membrane is installed on one side of the sealing cover.

[0045] A blower tube, the end of which passes through one side of the mounting housing and extends into its inner cavity;

[0046] A cutting net is installed on one side of the end of the air blowing pipe.

[0047] By adopting the above technical solution, external dust can be prevented from entering the mounting housing, further improving the accuracy of laser thickness measurement.

[0048] This application also discloses a process for detecting the thickness of plastic tarpaulins, implemented using any of the aforementioned plastic tarpaulin thickness detection devices, comprising the following steps:

[0049] S1. The worker passes one end of the fabric through the space between the two adjusting rollers, the through groove, and the space between the two transmission rollers in sequence.

[0050] S2. Based on the thickness of the plastic tarpaulin, rotate the second bidirectional lead screw until the roller gap is adjusted to the appropriate state;

[0051] S3. Rotate the first bidirectional lead screw, and the moving plates on both sides will drive the corresponding contact rods to move inward until the ball contacts the surface of the plastic tarpaulin.

[0052] S4. The motor runs, and the two transmission rollers rotate in opposite directions, pulling the plastic tarpaulin to one side.

[0053] S5. Adjust the roller to rotate in the opposite direction to the transfer roller, straightening the plastic tarpaulin located inside the mounting housing;

[0054] S6. The dust removal cylinder will drive the brush to rotate while the blower runs, and the raw materials and dust remaining on the surface of the plastic tarpaulin will be brushed off and sucked into the filter box.

[0055] S7. The fabric is gradually inserted into the installation housing. The laser rangefinders on the upper and lower sides operate, and the thickness of the plastic tarpaulin can be obtained through calculation by the external control mechanism.

[0056] 3. Beneficial effects

[0057] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0058] 1. The technical solution of this application straightens the plastic tarpaulin in real time and adjusts its position in real time, thereby ensuring that the plastic tarpaulin remains horizontal throughout the thickness measurement process. This application not only greatly reduces wear on the plastic tarpaulin during measurement, ensuring its quality, but also avoids measurement errors caused by unilateral lasers, effectively improving the accuracy and precision of measuring the thickness of the plastic tarpaulin and fully guaranteeing the consistency and accuracy of the measurement results.

[0059] 2. The technical solution of this application, by setting up a detection mechanism and a lifting mechanism, can brush off and remove residual raw materials and dust from the surface of the plastic tarpaulin in real time before thickness measurement. At the same time, it can keep the installation housing under positive pressure, thereby preventing external dust from entering and effectively preventing these debris from affecting the accuracy of laser thickness measurement, further improving the accuracy of laser thickness measurement. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of the overall structure of the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0061] Figure 2 This is a rear view schematic diagram of the overall structure of the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0062] Figure 3 This is a schematic diagram of the thickness measuring mechanism in the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0063] Figure 4 This is a schematic diagram of the conveying mechanism and the limiting mechanism in a preferred embodiment of the plastic tarpaulin thickness detection device disclosed in this application;

[0064] Figure 5 This is a schematic diagram of the reversing component in a plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0065] Figure 6 This is a schematic diagram of the structure of the placement frame in the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0066] Figure 7 This is a schematic diagram of the alignment component in a plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0067] Figure 8 This is a partial structural diagram of the mounting housing side of the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0068] Figure 9 This is a schematic diagram of the structure of the chip removal component in the plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0069] Figure 10 This is a schematic diagram of the air-inflating component in a plastic tarpaulin thickness detection device disclosed in a preferred embodiment of this application;

[0070] Explanation of the numbers in the diagram: 1. Mounting housing; 101. Through groove; 2. Placement frame; 3. Transmission roller; 4. First support frame; 5. Alignment assembly; 501. Fixing frame; 502. First bidirectional lead screw; 503. Moving plate; 504. Connecting frame; 505. Contact rod; 506. Pressure sensor; 507. Ball bearing; 508. Electric push rod; 6. Adjusting roller; 7. Reversing assembly; 701. First drive wheel; 702. Third gear; 703. Second gear; 704. First transmission belt; 705. Second drive wheel; 706. 8. Drive shaft; 8. Chip removal assembly; 801. Receiving pipe; 802. Dust removal cylinder; 803. Dust suction trough; 804. Third drive wheel; 805. Second transmission belt; 806. Brush; 807. Exhaust fan; 9. Air booster assembly; 901. Filter box; 902. Filter membrane; 903. Air blowing pipe; 904. Sealing cover; 905. Cutting net; 10. Laser rangefinder; 11. Electric motor; 12. First gear; 13. Universal connecting rod; 14. Second support frame; 15. Slider; 16. Second bidirectional lead screw; 17. Receiving rod. Detailed Implementation

[0071] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0072] Reference Figures 1-10 The plastic tarpaulin thickness detection device disclosed in this application includes: a thickness measuring mechanism, a placement frame 2, a conveying mechanism, a limiting mechanism, a calibration component 5, a chip removal component 8, and an air-increasing component 9.

[0073] The thickness measuring mechanism is used to measure the thickness of the plastic tarpaulin. The thickness measuring mechanism includes a mounting housing 1 with a through groove 101. Laser rangefinders 10 are mounted on both the upper and lower sides of the mounting housing 1. A support rod 17 is rotatably connected to one side of a placement frame 2. One end of the support rod 17 has a T-shaped structure. A limiting groove is provided inside the placement frame 2 to ensure that the support rod 17 is limited and rotated on the placement frame 2. A conveying mechanism is used to convey the plastic tarpaulin. The conveying mechanism includes a first support frame 4 mounted on one side of the mounting housing 1, with two transmission rollers 3 mounted on the first support frame 4. A drive mechanism is also mounted on one side of the first support frame 4 to drive the two transmission rollers 3 to rotate. A limiting mechanism includes a second support frame 14 mounted on the other side of the mounting housing 1, with two adjusting rollers 6 mounted on the second support frame 14. A calibration component 5 ensures that the tarpaulin inside the mounting housing 1 is horizontally positioned. A chip removal component 8 removes residual material from the plastic tarpaulin. An air-boosting component 9 blows air into the mounting housing 1 to prevent external dust from entering and affecting the normal operation of the laser rangefinders 10.

[0074] The worker secures the fabric roll to the support rod 17, then passes one end of the fabric sequentially between two adjusting rollers 6, through the through groove 101, and between two transmission rollers 3. The adjusting rollers 6 adjust the pulled fabric to a horizontal position. Under the control of the external control mechanism, the drive mechanism operates, and the two transmission rollers 3 rotate in opposite directions, gradually inserting the fabric into the mounting housing 1. The laser rangefinders 10 on the upper and lower sides operate, and the thickness of the plastic tarpaulin can be calculated by the external control mechanism. This method not only greatly reduces the wear and tear on the plastic tarpaulin during measurement, ensuring its quality, but also avoids measurement errors caused by unilateral laser scanning, effectively improving the accuracy of measuring the thickness of the plastic tarpaulin.

[0075] Reference Figure 1 , Figure 2 and Figure 4 The plastic tarpaulin thickness detection device provided in this application embodiment has a drive mechanism including an electric motor 11 and two first gears 12.

[0076] The output end of the motor 11 is fixedly connected to one of the transmission rollers 3; the first gear 12 is installed on one side of the transmission roller 3, and the two first gears 12 are meshed together.

[0077] After the motor 11 starts running, the two transmission rollers 3 rotate in opposite directions under the connection of the two first gears 12, pulling the plastic tarpaulin to one side.

[0078] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 The plastic tarpaulin thickness detection device provided in this application embodiment further includes a reversing component 7 in the limiting mechanism. The reversing component 7 is used to drive two adjusting rollers 6 to rotate in the opposite direction to the transmission roller 3. The reversing component 7 includes a first driving wheel 701 and a second gear 703.

[0079] The first drive wheel 701 is fixedly installed on one of the first gears 12; the second gear 703 is installed on one end of the adjusting roller 6, the two second gears 703 mesh with each other, one of the second gears 703 is meshed with a third gear 702 on one side, the third gear 702 is fixedly installed with a drive shaft 706 on one side, the drive shaft 706 is sleeved with a second drive wheel 705, the second drive wheel 705 is installed with a first transmission belt 704 on one side, and the first drive wheel 701 and the second drive wheel 705 are driven by friction with the first transmission belt 704.

[0080] During the rotation of the transmission roller 3, under the connection of the first drive wheel 701, the first transmission belt 704 and the second drive wheel 705, the third gear 702 rotates accordingly. Since the third gear 702 is meshed with the second gear 703, the adjusting roller 6 will rotate in the opposite direction to the transmission roller 3, straightening the plastic tarpaulin located in the mounting housing 1, thereby effectively improving the accuracy of the plastic tarpaulin thickness measurement.

[0081] Based on the above solution, the plastic tarpaulin thickness detection device provided in this application has a connecting groove 707 on the second drive wheel 705, and one side of the drive shaft 706 is made of rubber and has anti-slip strips on its surface. The drive shaft 706 and the connecting groove 707 are driven by friction.

[0082] Since one side of the drive shaft 706 is made of rubber and has anti-slip strips on its surface, the second drive wheel 705 mainly relies on friction to drive the adjusting roller 6 to rotate. When the friction between the plastic tarpaulin and the adjusting roller 6 is large, the second drive wheel 705 will idle. In this way, the adjusting roller 6 can be prevented from damaging the plastic tarpaulin, ensuring that the plastic tarpaulin is straight and preventing excessive tension from damaging the plastic tarpaulin.

[0083] Reference Figure 3 , Figure 7 and Figure 8 The plastic tarpaulin thickness detection device provided in this application embodiment includes a calibration component 5 comprising a detection mechanism and a lifting mechanism. The detection mechanism includes a fixed frame 501, two movable plates 503, a pressure sensor 506, and a pushing mechanism.

[0084] The fixed frame 501 is fixedly installed on one side of the mounting housing 1; a connecting frame 504 is fixedly installed on the inner side of the movable plate 503, and a contact rod 505 is slidably connected to the inner side of the connecting frame 504, with a ball bearing 507 embedded at the end of the contact rod 505; a pressure sensor 506 is fixedly installed on the movable plate 503, and the outer end of the contact rod 505 abuts against the detection end of the pressure sensor 506; a pushing mechanism is used to drive the two movable plates 503 to move linearly; and a lifting mechanism is used to drive the second support frame 14 to move up and down.

[0085] Before the fabric is fixed in place for testing, the two moving plates 503, driven by the pushing mechanism, move the pressure sensor 506 inward until the ball bearing 507 contacts the surface of the plastic tarpaulin. When the plastic tarpaulin shifts vertically during testing, the contact rod 505 moves outward, applying pressure to the pressure sensor 506. At this time, under the control of the external control mechanism, the lifting mechanism operates, and the second support frame 14 drives the adjusting roller 6 to move up and down until the plastic tarpaulin is adjusted to a horizontal position. In this way, the position of the plastic tarpaulin can be adjusted in real time, ensuring that the plastic tarpaulin remains horizontal throughout the thickness measurement process, thus guaranteeing the consistency and accuracy of the measurement results.

[0086] Based on the above solution, the plastic tarpaulin thickness detection device provided in this application includes a pushing mechanism comprising a first bidirectional lead screw 502 rotatably connected to a fixed frame 501, and a moving plate 503 threadedly connected to the first bidirectional lead screw 502; the lifting mechanism includes a plurality of electric push rods 508, the output end of the electric push rods 508 being connected and fixed to a second support frame 14.

[0087] When the operator rotates the first bidirectional lead screw 502, the moving plates 503 on both sides move in opposite directions.

[0088] Reference Figure 1 and Figure 4 The plastic tarpaulin thickness detection device provided in this application embodiment has a roller gap adjustment mechanism installed on both the first support frame 4 and the second support frame 14. The roller gap adjustment mechanism is used to adjust the roller gap between the two transmission rollers 3 and the two adjustment rollers 6. The roller gap adjustment mechanism includes a slider 15, a universal connecting rod 13 and a second bidirectional lead screw 16.

[0089] The slider 15 is slidably mounted on the first support frame 4 and the second support frame 14, and the transmission roller 3 and the adjusting roller 6 are rotatably connected to the corresponding slider 15. One side of the universal connecting rod 13 is fixedly connected between the transmission roller 3 and the corresponding first gear 12, and the other side of the universal connecting rod 13 is fixedly connected between the adjusting roller 6 and the corresponding second gear 703. The universal connecting rod 13 enables the transmission roller 3 and the adjusting roller 6 to rotate smoothly after the roller pitch is adjusted. The second bidirectional lead screw 16 is rotatably mounted on the first support frame 4 and the second support frame 14, and the slider 15 is rotatably connected to the corresponding second bidirectional lead screw 16.

[0090] The operator rotates the second bidirectional lead screw 16, and the slider 15 drives the transmission roller 3 or the adjusting roller 6 to move linearly, thereby adjusting the roller distance between the two transmission rollers 3 and the two adjusting rollers 6. In this way, the technical solution can be applied to plastic tarpaulins of different thicknesses, thus improving the applicability of the technical solution.

[0091] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9 The plastic tarpaulin thickness detection device provided in this application embodiment includes a dust removal component 8 comprising an induced draft fan 807 and a dust removal cylinder 802.

[0092] The induced draft fan 807 has a suction end connected to a receiving pipe 801; the dust removal cylinder 802 is connected to the inner cavity of the receiving pipe 801, the dust removal cylinder 802 is densely covered with bristles 806, and multiple dust suction grooves 803 are opened on the dust removal cylinder 802.

[0093] Before the plastic tarpaulin enters the mounting housing 1 for thickness measurement, the brush 806 will brush off the residual raw materials and dust on the surface of the plastic tarpaulin. At the same time, under the action of the fan 807, these impurities will be sucked away, effectively preventing these impurities from affecting the accuracy of laser thickness measurement.

[0094] Based on the above solution, the plastic tarpaulin thickness detection device provided in this application has a dust removal cylinder 802 rotatably inserted through one side of the receiving pipe 801. A third drive wheel 804 is fixedly installed on the end of the receiving pipe 801 and on the second gear 703. A second transmission belt 805 is installed on one side of the second gear 703. The third drive wheel 804 and the second transmission belt 805 are driven by friction.

[0095] During the rotation of the second gear 703, under the connection between the third drive wheel 804 and the second transmission belt 805, the dust removal cylinder 802 will drive the brush bristles 806 to rotate, effectively improving the cleaning effect on the plastic tarpaulin.

[0096] Reference Figure 1 , Figure 2 , Figure 8 and Figure 10 The plastic tarpaulin thickness detection device provided in this application embodiment includes an air-increasing component 9 comprising a filter box 901, an air-blowing pipe 903, and a cutting net 905.

[0097] The filter box 901 is fixedly connected between the suction end of the blower 807 and the end of the receiving pipe 801. A sealing cover 904 is inserted into the filter box 901, and a filter membrane 902 is installed on one side of the sealing cover 904. The end of the blowing pipe 903 passes through one side of the mounting housing 1 and extends into its inner cavity. A cutting net 905 is installed on one side of the end of the blowing pipe 903. The air blown out by the blowing pipe 903 will be blocked and separated by the cutting net 905, effectively preventing the airflow from being too rapid and disturbing the plastic tarpaulin, thus affecting the measurement accuracy.

[0098] The airflow absorbed by the blower 807 is filtered by the filter membrane 902 and then blown to the cutting net 905 through the blower pipe 903. After being blocked and separated, this part of the airflow flows into the mounting housing 1, which keeps the mounting housing 1 under positive pressure, thereby preventing external dust from entering and further improving the accuracy of laser thickness measurement.

[0099] The plastic tarpaulin thickness detection process described in this embodiment is implemented based on any plastic tarpaulin thickness detection device and includes the following steps:

[0100] S1. The staff will fix the cloth roll onto the support rod 17 and pass one end of the cloth through the space between the two adjusting rollers 6, the through groove 101 and the space between the two transmission rollers 3 in sequence.

[0101] S2. Based on the thickness of the plastic tarpaulin, rotate the second bidirectional lead screw 16 until the roller gap is adjusted to the appropriate state.

[0102] S3. Rotate the first bidirectional lead screw 502. The moving plates 503 on both sides will drive the corresponding contact rods 505 to move inward until the ball bearings 507 contact the surface of the plastic tarpaulin.

[0103] S4. When the motor 11 runs, the two transmission rollers 3 rotate in opposite directions, pulling the plastic tarpaulin to one side.

[0104] S5, the adjusting roller 6 rotates in the opposite direction to the transmission roller 3 to straighten the plastic tarpaulin located inside the mounting housing 1;

[0105] S6. The dust removal cylinder 802 will drive the brush 806 to rotate while the blower 807 runs. The raw materials and dust remaining on the surface of the plastic tarpaulin will be brushed off and sucked into the filter box 901.

[0106] S7. The fabric is gradually inserted into the installation housing 1. The laser rangefinders 10 on the upper and lower sides operate. After calculation by the external control mechanism, the thickness of the plastic tarpaulin can be obtained.

[0107] The principle of the plastic tarpaulin thickness detection device in this application embodiment is as follows: When relevant personnel need to use this technical solution to detect the thickness of the plastic tarpaulin, the personnel first fix the cloth roll on the support rod 17, and then pass one end of the cloth through the two adjusting rollers 6, the through groove 101 and the two transmission rollers 3 in sequence.

[0108] Then, according to the thickness of the plastic tarpaulin, the staff rotates the second bidirectional lead screw 16, and the slider 15 then drives the transmission roller 3 or the adjusting roller 6 to move linearly until the roller gap is adjusted to the appropriate state.

[0109] Subsequently, the staff rotates the first bidirectional lead screw 502, and the moving plates 503 on both sides will drive the corresponding contact rods 505 to move inward until the ball bearings 507 contact the surface of the plastic tarpaulin.

[0110] Under the control of the external control mechanism, the motor 11 runs and the two transmission rollers 3 rotate in opposite directions, pulling the plastic tarpaulin to one side.

[0111] As the fabric moves continuously, under the combined action of the first drive wheel 701, the first transmission belt 704 and the second drive wheel 705, the adjusting roller 6 will rotate in the opposite direction to the transmission roller 3, straightening the plastic tarpaulin located inside the mounting housing 1.

[0112] During the rotation of the adjusting roller 6, the dust removal cylinder 802 will drive the brush 806 to rotate. At this time, the induced draft fan 807 will run synchronously, and the raw materials and dust remaining on the surface of the plastic tarpaulin will be brushed off and sucked into the filter box 901.

[0113] The airflow absorbed by the induced draft fan 807 is filtered by the filter membrane 902 and then blown to the cutting net 905 through the blower pipe 903. After being blocked and separated, this part of the airflow flows into the mounting housing 1, which keeps the mounting housing 1 under positive pressure.

[0114] Subsequently, the fabric is gradually inserted into the mounting housing 1, and the laser rangefinders 10 on the upper and lower sides operate. After calculation by the external control mechanism, the thickness of the plastic tarpaulin can be obtained.

[0115] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0117] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0118] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0119] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations are found to be part of the claims of this application...

Claims

1. A plastic tarpaulin thickness detection device, characterized in that: Include: Thickness measuring mechanism for measuring the thickness of plastic tarpaulin; the thickness measuring mechanism includes a mounting housing (1), a through groove (101) is provided on the mounting housing (1), and laser rangefinders (10) are installed on both the upper and lower sides of the mounting housing (1); The limiting mechanism includes a second support frame (14) installed on the other side of the mounting housing (1), on which two adjusting rollers (6) are mounted; Alignment component (5) is used to ensure that the tarpaulin located inside the mounting housing (1) is arranged in a horizontal structure; The chip removal assembly (8) is used to remove material residues from the plastic tarpaulin; The air-blowing component (9) is used to blow air into the mounting housing (1) to prevent external dust from entering and affecting the normal operation of the laser rangefinder (10); The alignment component (5) includes a detection mechanism and a lifting mechanism. The lifting mechanism is used to drive the second support frame (14) to move up and down. The detection mechanism includes: A fixing bracket (501) is fixedly installed on one side of the mounting housing (1); Two movable plates (503), a connecting frame (504) is fixedly installed on the inner side of the movable plate (503), a contact rod (505) is slidably connected to the inner side of the connecting frame (504), and a ball bearing (507) is embedded at the end of the contact rod (505); A pressure sensor (506) is fixedly mounted on a movable plate (503), and the outer end of the contact rod (505) abuts against the detection end of the pressure sensor (506). A driving mechanism is provided to drive two movable plates (503) to move linearly. The pushing mechanism includes a first bidirectional lead screw (502) rotatably connected to the fixed frame (501), and the moving plate (503) is threadedly connected to the first bidirectional lead screw (502); the lifting mechanism includes a plurality of electric push rods (508), and the output end of the electric push rods (508) is connected and fixed to the second support frame (14); The chip removal assembly (8) includes: An induced draft fan (807) is provided with a receiving pipe (801) connected to the suction end of the induced draft fan (807); The cleaning cylinder (802) is connected to the inner cavity of the receiving pipe (801). The cleaning cylinder (802) is densely covered with bristles (806), and multiple dust suction grooves (803) are opened on the cleaning cylinder (802). The gas booster assembly (9) includes: A filter box (901) is fixedly connected between the suction end of the blower (807) and the end of the receiving pipe (801). A sealing cover (904) is inserted on the filter box (901), and a filter membrane (902) is installed on one side of the sealing cover (904). A blower tube (903), the end of which passes through one side of the mounting housing (1) and extends into its inner cavity; A cutting net (905) is installed on one side of the end of the air blower (903).

2. The plastic tarpaulin thickness detection device according to claim 1, characterized in that: Also includes: A conveying mechanism is used to convey plastic tarpaulin. The conveying mechanism includes a first support frame (4) installed on one side of the mounting housing (1). Two transmission rollers (3) are installed on the first support frame (4). A driving mechanism is also installed on one side of the first support frame (4). The driving mechanism is used to drive the two transmission rollers (3) to rotate. The drive mechanism includes: An electric motor (11) is fixedly connected to one of the transmission rollers (3) at its output end. The first gear (12) consists of two gears, which are mounted on one side of the transmission roller (3) and are meshed together.

3. The plastic tarpaulin thickness detection device according to claim 2, characterized in that: The limiting mechanism further includes a reversing component (7), which is used to drive two adjusting rollers (6) to rotate in the opposite direction to the transmission roller (3). The reversing component (7) includes: The first drive wheel (701) is fixedly mounted on one of the first gears (12); The second gear (703) is installed at one end of the adjusting roller (6). The two second gears (703) mesh with each other. One of the second gears (703) is connected to a third gear (702) on one side. A drive shaft (706) is fixedly installed on one side of the third gear (702). A second drive wheel (705) is sleeved on the outside of the drive shaft (706). A first transmission belt (704) is installed on one side of the second drive wheel (705). The first drive wheel (701) and the second drive wheel (705) are driven by friction with the first transmission belt (704).

4. The plastic tarpaulin thickness detection device according to claim 3, characterized in that: Both the first support frame (4) and the second support frame (14) are equipped with roller gap adjustment mechanisms. These mechanisms are used to adjust the roller gap between the two transmission rollers (3) and the two adjusting rollers (6). The roller gap adjustment mechanisms include: The slider (15) is slidably mounted on the first support frame (4) and the second support frame (14), and the transmission roller (3) and the adjusting roller (6) are rotatably connected to the corresponding slider (15); Universal connecting rod (13), one side of the universal connecting rod (13) is fixedly connected between the transmission roller (3) and the corresponding first gear (12), and the other side of the universal connecting rod (13) is fixedly connected between the adjusting roller (6) and the corresponding second gear (703); The second bidirectional lead screw (16) is rotatably mounted on the first support frame (4) and the second support frame (14), and the slider (15) is rotatably connected to the corresponding second bidirectional lead screw (16).

5. The plastic tarpaulin thickness detection device according to claim 1, characterized in that: The cleaning cylinder (802) is rotatably installed on one side of the receiving pipe (801). A third drive wheel (804) is fixedly installed on the end of the receiving pipe (801) and on the second gear (703). A second transmission belt (805) is installed on one side of the second gear (703). The third drive wheel (804) and the second transmission belt (805) are driven by friction.

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