Detection device for damage density in production of non-woven geotextile
By introducing a conveyor belt and a pressure roller mechanism into the nonwoven geotextile testing device, the problem of wrinkles during the nonwoven geotextile testing process was solved, and higher testing accuracy was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHENTAI NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-05-05
AI Technical Summary
Non-woven geotextiles are prone to wrinkles during testing, which affects the accuracy of the test.
A detection device comprising a housing, a conveying assembly, a U-shaped frame, a partition, and a pressing mechanism was designed. The fabric is conveyed by a conveyor belt, and the pressing roller is moved by a drive motor and a threaded rod to press and straighten the fabric, thus preventing the formation of wrinkles.
This improves the accuracy of nonwoven geotextile damage density detection and ensures the reliability of test results.
Smart Images

Figure CN224203191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and in particular to a testing device for the density of damage in the production of nonwoven geotextiles. Background Technology
[0002] Geotextile, also known as geotextile fabric, is a permeable geosynthetic material made of synthetic fibers through needle punching or weaving. Currently, Chinese patent announcement CN210803319U discloses a device for detecting the density of damaged geotextiles. This device includes a housing, with a control unit fixedly connected to the lower right corner of the housing's inner cavity. A transverse partition is fixedly connected to the middle of the housing, and a longitudinal partition is fixedly connected between the front side of the bottom of the transverse partition and the top of the inner surface of the housing. This utility model relates to the field of geotextile quality testing technology. After irradiating the geotextile with a detection lamp, a marking device can be used to mark the damaged area, facilitating later cutting of that section. Utilizing the cooperation of a piston, sliding sleeve, and spring, after marking, the spring can open the piston and sliding sleeve, allowing negative pressure to draw a small amount of ink from the ink bottle into the sponge block, enabling the sponge block to work continuously for a long time while maintaining clear markings. The structure is simple and easy to use.
[0003] In practical use, it was found that when the nonwoven geotextile is conveyed to the bottom of the testing instrument, the nonwoven geotextile lacks a tensioning mechanism, which easily leads to wrinkles in the nonwoven geotextile, affecting the accuracy of the nonwoven geotextile testing. Therefore, we proposed a testing device for the breakage density of nonwoven geotextile production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting the breakage density in the production of nonwoven geotextiles.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A device for detecting the breaking density of nonwoven geotextile production includes a housing, a conveying assembly inside the housing, a U-shaped frame fixedly installed on the top of the housing, partitions fixedly installed on the inner walls of both sides of the U-shaped frame, a detector installed at the bottom of the partitions, and connecting seats fixedly installed on the inner walls of both sides of the U-shaped frame. A rectangular groove is opened on one side of the connecting seat, and a rectangular seat is slidably installed in the rectangular groove. A pressing mechanism for nonwoven geotextile is provided on the rectangular seat. The pressing mechanism includes a guide hole, a guide rod, a U-shaped plate, and a pressing roller. The guide hole is opened on the rectangular seat, the guide rod is slidably installed in the guide hole, the bottom end of the guide rod is fixedly installed with a U-shaped plate, and a pressing roller is rotatably installed in the U-shaped plate.
[0007] Preferably, a horizontal plate is fixedly installed on the guide rod, and a return spring is fixedly installed at the bottom of the horizontal plate. The bottom end of the return spring is fixedly installed on a rectangular base.
[0008] Preferably, two trapezoidal seats are fixedly installed at the bottom of the partition, and the guide rod is adapted to the corresponding trapezoidal seat.
[0009] Preferably, driving holes are provided on the top inner wall of the rectangular groove and on the partition plate, and driving seats are slidably installed in the corresponding two driving holes, with the bottom end of the driving seat fixedly connected to the rectangular seat.
[0010] Preferably, threaded rods are rotatably mounted on the inner walls of both sides of the U-shaped frame, and the drive seat is threaded onto the threaded rods. A drive motor is fixedly mounted on one side of the U-shaped frame, and the output shaft of the drive motor is fixedly connected to the threaded rods.
[0011] Preferably, the threaded rod has two external threads with opposite directions of rotation, and the drive seat has an internal threaded hole that meshes with the corresponding external thread.
[0012] Preferably, the conveying assembly includes a rotating shaft, conveying rollers, and a conveyor belt. The rotating shaft is rotatably mounted on the inner walls of both sides of the housing, and the conveying rollers are fixedly mounted on the rotating shaft. The conveyor belt is driven and sleeved on the two conveying rollers.
[0013] Preferably, a rotary motor is fixedly installed on one side of the housing, and the output shaft of the rotary motor is fixedly connected to the corresponding rotary shaft.
[0014] The beneficial effects of this utility model are:
[0015] 1. When testing the breaking density of nonwoven geotextile, the broken nonwoven geotextile can be transported by a conveyor belt, so that the nonwoven geotextile can be transported directly below the testing instrument.
[0016] 2. By starting the drive motor, the drive motor can drive the threaded rod to rotate, the threaded rod can drive the two drive seats to move away from each other, the drive seats can drive the rectangular seat to move, and the rectangular seat can drive the pressure roller to move through the guide rod.
[0017] 3. With the cooperation of the guide rod and trapezoidal seat, the guide rod can drive the U-shaped plate and the pressing roller to move downward. The downward movement of the pressing roller can press the non-woven geotextile below the detector. At the same time, when the two pressing rollers move away from each other, they can straighten the non-woven geotextile, avoid wrinkles during the detection of the non-woven geotextile, and improve the accuracy of the detection of the density of non-woven geotextile damage. Attached Figure Description
[0018] Figure 1This is a three-dimensional structural diagram of a device for detecting the breaking density in the production of nonwoven geotextiles, as proposed in this utility model.
[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of a device for detecting the breaking density in the production of nonwoven geotextiles, as proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of part A of a device for detecting the breaking density in the production of nonwoven geotextiles, as proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of part B of a device for detecting the breaking density in the production of nonwoven geotextiles, as proposed in this utility model.
[0022] In the diagram: 1. Housing; 2. Conveying assembly; 3. Rotary motor; 4. U-shaped frame; 5. Partition plate; 6. Detector; 7. Support plate; 8. Connecting seat; 9. Rectangular groove; 10. Rectangular seat; 11. Drive hole; 12. Drive seat; 13. Threaded rod; 14. Drive motor; 15. Trapezoidal seat; 16. Guide hole; 17. Guide rod; 18. Pressure roller; 19. Horizontal plate; 20. Return spring. Detailed Implementation
[0023] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0024] Reference Figure 1-4 A device for detecting the breaking density of nonwoven geotextile production includes a housing 1, a conveying assembly 2 inside the housing 1, a U-shaped frame 4 fixedly installed on the top of the housing 1, partitions 5 fixedly installed on the inner walls of both sides of the U-shaped frame 4, a detector 6 installed at the bottom of the partitions 5, connecting seats 8 fixedly installed on the inner walls of both sides of the U-shaped frame 4, a rectangular groove 9 opened on one side of the connecting seat 8, a rectangular seat 10 slidably installed in the rectangular groove 9, and a pressing mechanism for nonwoven geotextile on the rectangular seat 10. The pressing mechanism includes a guide hole 16, a guide rod 17, a U-shaped plate and a pressing roller 18. The guide hole 16 is opened on the rectangular seat 10, the guide rod 17 is slidably installed in the guide hole 16, the bottom end of the guide rod 17 is fixedly installed with a U-shaped plate, and the pressing roller 18 is rotatably installed in the U-shaped plate. The pressing roller 18 can be used to detect the breaking density of nonwoven geotextile.
[0025] In this embodiment, a horizontal plate 19 is fixedly installed on the guide rod 17, and a return spring 20 is fixedly installed at the bottom of the horizontal plate 19. The bottom end of the return spring 20 is fixedly installed on the rectangular seat 10 for pressing and stretching the non-woven geotextile. Two trapezoidal seats 15 are fixedly installed at the bottom of the partition 5, and the guide rod 17 is adapted to the corresponding trapezoidal seat 15. By setting the trapezoidal seat 15, when the guide rod 17 moves in the horizontal direction, the trapezoidal seat 15 can achieve the purpose of squeezing the guide rod 17 in the vertical direction.
[0026] In this embodiment, drive holes 11 are provided on the top inner wall of the rectangular groove 9 and on the partition 5. Drive seats 12 are slidably installed in the corresponding two drive holes 11, and the bottom end of the drive seats 12 is fixedly connected to the rectangular seat 10. By providing drive seats 12, the movement of drive seats 12 can drive the rectangular seat 10 to move.
[0027] In this embodiment, threaded rods 13 are rotatably mounted on the inner walls of both sides of the U-shaped frame 4, and drive seats 12 are threadedly sleeved on the threaded rods 13. A drive motor 14 is fixedly mounted on one side of the U-shaped frame 4, and the output shaft of the drive motor 14 is fixedly connected to the threaded rods 13. The threaded rods 13 are provided with two external threads with opposite directions of rotation, and the drive seats 12 are provided with internal threaded holes, which mesh with the corresponding external threads. Since the threaded rods 13 are provided with two external threads with opposite directions of rotation, the rotation of the threaded rods 13 can drive the two drive seats 12 to move, and the two drive seats 12 move in opposite directions.
[0028] In this embodiment, the conveying assembly 2 includes a rotating shaft, conveying rollers, and a conveyor belt. The rotating shaft is rotatably mounted on the inner walls of both sides of the housing 1. Conveying rollers are fixedly mounted on the rotating shaft, and conveyor belts are driven sleeved on the two conveying rollers. A rotary motor 3 is fixedly mounted on one side of the housing 1, and the output shaft of the rotary motor 3 is fixedly connected to the corresponding rotating shaft. By providing the rotary motor 3, the rotary motor 3 can drive the conveying rollers and conveyor belt to rotate. The rotation of the conveyor belt can drive the non-woven geotextile to be conveyed, thereby conveying the non-woven geotextile to the area directly below the detector 6. More specifically, support plates 7 for supporting the conveyor belt are fixedly mounted on the inner walls of both sides of the housing 1, and the support plates 7 are located directly below the detector 6.
[0029] In this invention, when testing the breaking density of nonwoven geotextile, the broken nonwoven geotextile is transported via a conveyor belt to a position directly below the testing instrument 6. By activating the drive motor 14, the drive motor 14 rotates the threaded rod 13, which in turn moves the two drive seats 12 away from each other. The drive seats 12 then move the rectangular seat 10, which, via the guide rod 17, moves the pressure roller. When the guide rod 17 moves horizontally... At the same time, under the action of the trapezoidal seat 15, the guide rod 17 moves downward along the inclined side of the trapezoidal seat 15. The guide rod 17 can drive the horizontal plate 19 to move downward and compress the return spring 20. The guide rod 17 can drive the U-shaped plate and the pressing roller 18 to move downward. The pressing roller 18 can press the non-woven geotextile below the detector 6 when it moves downward. At the same time, when the two pressing rollers 18 move away from each other, they can straighten the non-woven geotextile, avoid wrinkles when the non-woven geotextile is tested, and improve the accuracy of the non-woven geotextile damage density test.
[0030] The above provides a detailed description of the device for detecting the breaking density in the production of nonwoven geotextiles, as provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A device for detecting the breaking density in the production of nonwoven geotextiles, characterized in that, Includes a housing (1), inside which a conveying assembly (2) is provided, a U-shaped frame (4) is fixedly installed on the top of the housing (1), partitions (5) are fixedly installed on the inner walls of both sides of the U-shaped frame (4), and a detector (6) is installed at the bottom of the partitions (5). Connecting seats (8) are fixedly installed on both inner walls of the U-shaped frame (4). A rectangular groove (9) is opened on one side of the connecting seat (8). A rectangular seat (10) is slidably installed in the rectangular groove (9). A pressing mechanism for non-woven geotextile is provided on the rectangular seat (10). The pressing mechanism includes a guide hole (16), a guide rod (17), a U-shaped plate and a pressing roller (18). The guide hole (16) is opened on a rectangular seat (10). The guide rod (17) is slidably installed in the guide hole (16). The bottom end of the guide rod (17) is fixedly installed with a U-shaped plate. The pressing roller (18) is rotatably installed in the U-shaped plate.
2. The device for detecting the breaking density in nonwoven geotextile production according to claim 1, characterized in that, A horizontal plate (19) is fixedly installed on the guide rod (17), and a return spring (20) is fixedly installed at the bottom of the horizontal plate (19). The bottom end of the return spring (20) is fixedly installed on the rectangular seat (10).
3. The device for detecting the breaking density in the production of nonwoven geotextiles according to claim 1, characterized in that, Two trapezoidal seats (15) are fixedly installed at the bottom of the partition (5), and the guide rod (17) is adapted to the corresponding trapezoidal seat (15).
4. The device for detecting the breaking density in nonwoven geotextile production according to claim 1, characterized in that, The top inner wall of the rectangular groove (9) and the partition (5) are provided with drive holes (11), and drive seats (12) are slidably installed in the corresponding two drive holes (11), and the bottom end of the drive seat (12) is fixedly connected to the rectangular seat (10).
5. The device for detecting the breaking density in nonwoven geotextile production according to claim 4, characterized in that, A threaded rod (13) is rotatably installed on the inner walls of both sides of the U-shaped frame (4), and the drive seat (12) is threaded onto the threaded rod (13). A drive motor (14) is fixedly installed on one side of the U-shaped frame (4), and the output shaft of the drive motor (14) is fixedly connected to the threaded rod (13).
6. The device for detecting the breaking density in the production of nonwoven geotextiles according to claim 5, characterized in that, The threaded rod (13) is provided with two external threads with opposite directions of rotation, and the drive seat (12) is provided with an internal thread hole, which meshes with the corresponding external thread.
7. The device for detecting the breaking density in the production of nonwoven geotextiles according to claim 1, characterized in that, The conveying assembly (2) includes a rotating shaft, conveying rollers and a conveyor belt. The rotating shaft is rotatably mounted on the inner walls of both sides of the housing (1). The conveying rollers are fixedly mounted on the rotating shaft, and the conveyor belts are driven sleeved on the two conveying rollers.
8. The device for detecting the breaking density in the production of nonwoven geotextiles according to claim 7, characterized in that, A rotary motor (3) is fixedly installed on one side of the housing (1), and the output shaft of the rotary motor (3) is fixedly connected to the corresponding rotary shaft.
Citation Information
Patent Citations
Damage density detection device for geotechnical cloth
CN210803319U