An online cover inspection scraper for filter cloth production line
By using a combination of CCD camera and laser emitter on the filter cloth production line, the problem of distance measurement during full-coverage coating inspection was solved, enabling uniform coating spraying and high-precision detection, thus improving the quality and efficiency of filter cloth production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI TONCIN FILTRATION TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-30
AI Technical Summary
The online cover inspection scraper on the existing filter cloth production line cannot effectively measure distance during full-coverage coating inspection, resulting in inspection failure.
By combining a CCD camera and a laser emitter, the coating thickness is measured non-contactly. The thickness is calculated using geometric trigonometric relationships, and the coating is sprayed evenly from the nozzle to ensure accurate detection.
It enables uniform spraying of filter cloth coatings and high-precision non-contact detection, applicable to full-coverage coatings, improving the scope and accuracy of detection, and reducing waste.
Smart Images

Figure CN224435302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter cloth production technology, specifically an online cover inspection scraper for filter cloth production lines. Background Technology
[0002] The online cover inspection scraper in the filter cloth production line is a quality control device integrated into the continuous production process. Its core function is to detect the uniformity and integrity of the cover cloth (such as coating or composite layer) covering the filter cloth surface in real time. The scraper usually uses high-precision carbide or ceramic blades to contact the surface of the filter cloth in operation at a specific angle and constant pressure. The detection equipment detects the appearance of the coating area and transmits the data to the analysis system. Combined with preset quality standards, the product qualification is determined in real time.
[0003] For example, the patent with authorization announcement number CN222132487U describes a coating machine with a scraper adjustment component. It uses three laser rangefinders to monitor the distance between the material and the laser rangefinder, and two laser rangefinders to monitor the distance of the conveyor belt. The average value of the values obtained by the two laser rangefinders is taken, and the average value is subtracted from the result of the middle laser rangefinder to obtain the thickness of the material on the conveyor belt after scraping.
[0004] The existing technical solutions have the following problems:
[0005] The comparison document shows that multiple pairs of laser rangefinders are used to monitor the coating thickness. However, this method is only suitable for detecting half-coverage or partially-coverage coatings. When monitoring fully-coverage coatings, the laser rangefinders used to detect the distance to the conveyor belt will lose their reference point and will be unable to perform distance measurement.
[0006] Based on this, an online cover inspection scraper for filter cloth production lines is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0007] The purpose of this invention is to provide an online cover inspection scraper for filter cloth production lines to solve the problems in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] An online cover inspection scraper for a filter cloth production line includes a support frame, a limiting seat mounted on the upper end of the support frame, an mounting seat mounted in the middle of the limiting seat, an mounting groove at the lower end of the mounting seat, and a scraper slidably connected to the mounting groove. The mounting seat has several bolts for fixing the scraper. The support frame is mounted on the upper end of a vehicle frame. Two rotating rollers are located inside the vehicle frame, on which filter cloth raw material is wound. A feeding plate is located on the side of the rotating rollers. A dryer is located on the upper end of the vehicle frame. A fixing frame is located on the side of the limiting seat. A detection device is located on the surface of the limiting seat, and the detection device includes a detection seat mounted on the surface of the limiting seat.
[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0011] In one alternative: a plurality of nozzles are evenly arranged on the fixing frame, and the nozzles are directed toward the loading plate.
[0012] In one alternative: a CCD camera is mounted on the detection seat, an adjustment seat is provided on the side of the CCD camera, and a laser emitter is provided on the adjustment seat.
[0013] In one alternative: the upper end of the adjusting seat is rotatably connected to two rotating blocks, a transmission block is installed in the middle of the rotating blocks, and the upper end of the transmission block is fixedly connected to a laser emitter.
[0014] In one alternative: the transmission block surface is provided with a worm gear, the adjusting seat surface is provided with two rotating seats, the rotating seats are rotatably connected to the worm, and the worm meshes with the worm gear for transmission.
[0015] In one alternative: the worm gear is connected to the output end of the drive motor on its side, and the fixed end of the drive motor is fixedly connected to the surface of the detection seat.
[0016] In one alternative: the rotating block has a scale block on its side for easy observation.
[0017] In one alternative: the surface of the feeding plate is provided with a guide groove.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model sets up several nozzles to spray the coating onto the surface of the feeding plate, so that the filter cloth and the coating are in uniform contact, preventing uneven coating from affecting the subsequent scraping work and improving the scraping quality.
[0020] 2. This utility model emits a laser beam onto the surface of a filter cloth by setting a laser emitter, and captures the reflected light spot by a CCD camera. When there is a coating on the filter cloth, the laser beam deflects, and the CCD camera captures the displaced light spot. The thickness is calculated by a pre-calibrated geometric model. It has the advantages of being non-contact and accurate in detection, and has a wide range of applications. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 for Figure 1 A magnified view of a portion at point A shown.
[0023] Figure 3 This is a schematic diagram of the structure of the mounting base of this utility model.
[0024] Figure 4 This is a schematic diagram of the structure of the CCD camera of this utility model.
[0025] Figure 5 This is a schematic diagram of the transmission block of this utility model.
[0026] Figure reference numerals: 101, frame; 102, loading plate; 201, support frame; 202, limit seat; 203, mounting seat; 204, bolt; 205, scraper; 301, dryer; 401, fixing frame; 402, nozzle; 501, detection seat; 502, CCD camera; 503, adjusting seat; 504, rotating block; 505, transmission block; 506, worm gear; 507, worm; 508, rotating seat; 509, drive motor; 510, laser emitter. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0028] In one embodiment, such as Figures 1-3As shown, an online cover inspection scraper for a filter cloth production line includes a support frame 201. A limiting seat 202 is mounted on the upper end of the support frame 201, and a mounting seat 203 is mounted in the middle of the limiting seat 202. A mounting groove is provided at the lower end of the mounting seat 203, and a scraper 205 is slidably connected to the mounting groove. Several bolts 204 for fixing the scraper 205 are provided on the mounting seat 203. The support frame 201 is mounted on the upper end of a frame 101. Two rotating rollers are provided inside the frame 101, on which filter cloth raw material is wound. A feeding plate 102 is provided on the side of the rotating rollers. A dryer 30 is provided on the upper end of the frame 101. 1. The limiting seat 202 is provided with a fixing frame 401 on its side. The limiting seat 202 is provided with a detection device on its surface. The detection device includes a detection seat 501. The detection seat 501 is installed on the surface of the limiting seat 202. The filter cloth material is wound by two rotating rollers provided inside the frame 101. The coating is sprayed on the surface of the feeding plate 102. The feeding plate 102 guides the coating to combine with the filter cloth material on the rotating rollers. The rotating rollers drive the filter cloth material to move. The coating on the surface of the filter cloth material is scraped evenly by the scraper 205 through frictional contact with the surface of the filter cloth. The filter cloth is dried by the dryer 301 to complete the filter cloth processing work.
[0029] In one embodiment, such as Figure 2 and Figure 3 As shown, a plurality of nozzles 402 are evenly arranged on the fixed frame 401. The nozzles 402 spray nozzles face the feed plate 102. The fixed frame 401 provides the installation conditions. By installing a plurality of nozzles 402 on the fixed frame 401, the paint is sprayed more evenly. The evenly sprayed hot paint comes into contact with the filter cloth on the rotating roller through the feed plate 102, which facilitates the subsequent scraping work.
[0030] In one embodiment, such as Figure 2 and Figure 3 As shown, a CCD camera 502 is mounted on the detection seat 501, and an adjustment seat 503 is provided on the side of the CCD camera 502. A laser emitter 510 is provided on the adjustment seat 503. A laser beam is emitted to the surface of the filter cloth through the laser emitter 510 (which is the prior art and will not be described in detail here). The reflected light spot is received by the CCD camera 502. When there is a coating on the surface of the filter cloth, the displacement of the reflected light spot on the CCD camera 502 is detected by the processor, and the thickness is calculated by using geometric trigonometric relationships. It has the advantages of non-contact thickness measurement and high detection accuracy, and is suitable for online thickness measurement of flexible materials such as filter cloth and film.
[0031] In one embodiment, such as Figure 3 and Figure 4As shown, the upper end of the adjusting seat 503 is rotatably connected to two rotating blocks 504. A transmission block 505 is installed in the middle of the rotating blocks 504. The upper end of the transmission block 505 is fixedly connected to the laser emitter 510. The rotatable connection between the rotating blocks 504 and the adjusting seat 503 provides the rotation conditions for the transmission block 505. When the transmission block 505 rotates, it drives the laser emitter 510 to rotate, providing conditions for adjusting the emission angle of the detection seat 501.
[0032] In one embodiment, such as Figure 4 and Figure 5 As shown, the transmission block 505 has a worm gear 506 on its surface, and the adjustment seat 503 has two rotating seats 508 on its surface. The rotating seats 508 are rotatably connected to the worm 507. The worm 507 meshes with the worm gear 506 for transmission. The rotating seats 508 provide rotation conditions for the worm 507. The rotation of the worm 507 causes the worm gear 506 to rotate. The rotation angle of the transmission block 505 is adjusted by adjusting the rotation angle of the worm gear 506, thus providing transmission conditions for adjusting the emission position of the laser emitter 510.
[0033] In one embodiment, such as Figure 4 and Figure 5 As shown, the worm 507 is connected to the output end of the drive motor 509 on its side, and the fixed end of the drive motor 509 is fixedly connected to the surface of the detection seat 501. The drive motor 509 provides power for the rotation of the worm 507.
[0034] In one embodiment, such as Figure 4 and Figure 5 As shown, the rotating block 504 has a scale block on its side for easy observation. By observing the scale block on the rotating block 504, it is convenient to quickly record and adjust the rotation amplitude of the rotating block 504.
[0035] The above embodiment discloses an online cover inspection scraper for a filter cloth production line. The filter cloth raw material is wound around two rotating rollers inside the frame 101. Several nozzles 402 installed on the fixed frame 401 ensure more uniform coating spraying. The uniformly sprayed hot coating comes into contact with the filter cloth on the rotating rollers via the feeding plate 102, facilitating subsequent scraping. The coating is sprayed onto the surface of the feeding plate 102, which guides the coating to combine with the filter cloth raw material on the rotating rollers. The rotating rollers drive the filter cloth raw material to move. The scraper 205 scrapes the coating evenly onto the filter cloth raw material surface through frictional contact. A laser beam is emitted to the filter cloth surface via a laser emitter 510, and the reflected light spot is received by a CCD camera 502. When there is coating on the filter cloth surface, the processor detects the displacement of the reflected light spot on the CCD camera 502, calculates the thickness using geometric trigonometric relationships, and adjusts it promptly when the thickness does not meet the standard to avoid waste. The filter cloth is then dried by a dryer 301, completing the filter cloth processing.
[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An online cover inspection scraper for a filter cloth production line, comprising a support frame (201), a limiting seat (202) mounted on the upper end of the support frame (201), a mounting seat (203) mounted in the middle of the limiting seat (202), a mounting groove at the lower end of the mounting seat (203), a scraper (205) slidably connected to the mounting groove, a plurality of bolts (204) for fixing the scraper (205) on the mounting seat (203), the support frame (201) mounted on the upper end of a frame (101), two rotating rollers inside the frame (101), filter cloth raw material wound on the rotating rollers, a feeding plate (102) on the side of the rotating rollers, a dryer (301) on the upper end of the frame (101), and a fixing frame (401) on the side of the limiting seat (202), characterized in that, The limiting seat (202) is provided with a detection device, which includes a detection seat (501) and is installed on the surface of the limiting seat (202).
2. The online cover inspection scraper for a filter cloth production line according to claim 1, characterized in that, The fixed frame (401) is evenly provided with a plurality of nozzles (402), and the nozzles (402) spray nozzles face the feed plate (102).
3. The online cover inspection scraper for a filter cloth production line according to claim 1, characterized in that, A CCD camera (502) is mounted on the detection seat (501), and an adjustment seat (503) is provided on the side of the CCD camera (502). A laser emitter (510) is provided on the adjustment seat (503).
4. The online cover inspection scraper for a filter cloth production line according to claim 3, characterized in that, The upper end of the adjusting seat (503) is rotatably connected to two rotating blocks (504), and a transmission block (505) is installed in the middle of the rotating blocks (504). The upper end of the transmission block (505) is fixedly connected to the laser emitter (510).
5. The online cover inspection scraper for a filter cloth production line according to claim 4, characterized in that, The transmission block (505) has a worm gear (506) on its surface, and the adjustment seat (503) has two rotating seats (508) on its surface. The rotating seats (508) are rotatably connected to the worm (507), and the worm (507) meshes with the worm gear (506) for transmission.
6. The online cover inspection scraper for a filter cloth production line according to claim 5, characterized in that, The worm gear (507) is connected to the output end of the drive motor (509) on its side, and the fixed end of the drive motor (509) is fixedly connected to the surface of the detection seat (501).
7. The online cover inspection scraper for a filter cloth production line according to claim 4, characterized in that, The rotating block (504) has a scale block on its side for easy observation.
8. The online cover inspection scraper for a filter cloth production line according to claim 1, characterized in that, The surface of the feeding plate (102) is provided with a guide groove.