Cord fabric on-line thickness measuring device

Abstract

The utility model relates to a kind of cord fabric online thickness measuring device, including installation base plate, measurement component and driving lifting element are provided on installation base plate, measurement component includes displacement detector and measuring head, measuring head is transmission connection with the sensing end of displacement detector, measuring head is set to with cord fabric surface contact in rolling mode, and follow-up with cord fabric movement;Driving lifting element is used to drive measurement component to make lifting movement, so that measuring head and cord fabric surface contact or separate, the utility model can solve the obvious technical problems of the continuity, accuracy, stability and automation degree of cord fabric thickness detection in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of air spring manufacturing technology, specifically relating to an online thickness measuring device for curtain fabric. Background Technology

[0002] In the manufacturing process of air springs, the fabric cord is a key material, and its thickness uniformity directly affects the mechanical properties, durability, and overall quality stability of the finished product. Therefore, real-time and accurate online detection of the fabric cord thickness is a crucial step in ensuring the quality of air spring products.

[0003] Currently, the industry mainly uses two methods to inspect the thickness of fabric cords, but both have significant technical drawbacks: One is the manual handheld thickness gauge method, which relies on operators randomly selecting points on the production line using a handheld thickness gauge. Its main drawbacks include: 1. Poor continuity of detection: It can only achieve discrete point measurements, and cannot cover the continuous change process of the entire roll of fabric. It is difficult to detect local thickness abnormalities or trend fluctuations in a timely manner, resulting in a significant risk of missed quality inspections. 2. Difficulty in maintaining constant measurement pressure: Excessive pressure can easily cause compression deformation of the flexible fabric, resulting in lower measured values; insufficient pressure will introduce gap errors due to insufficient contact between the probe and the material, resulting in higher measured values. 3. Probe alignment accuracy depends on manual operation: The probe is prone to tilting or not being perpendicular to the surface being measured, resulting in the actual measurement path being slanted, and the measurement results being systematically higher. 4. Low production efficiency: The detection process relies on manual intervention, which is difficult to match the cycle time requirements of modern high-speed continuous production lines, restricting the improvement of the overall automation level. Secondly, non-contact measurement technologies (such as laser thickness measurement) face numerous challenges in practical applications for fabric inspection, despite their theoretical advantages of high speed and non-destructive testing: 1. High environmental sensitivity: Temperature fluctuations in industrial settings can cause changes in the refractive index of the laser beam, affecting the stability of the optical path; simultaneously, vibrations of the fabric during transport can also cause laser focusing deviation, leading to measurement errors; 2. Significant interference from material properties: Fabrics are mostly made of rubber composite materials, which have strong absorption characteristics for lasers, resulting in attenuation of reflected signal intensity and a decrease in signal-to-noise ratio; uneven fabric textures or coatings on the surface can cause laser scattering and multipath reflection, resulting in drastic fluctuations in thickness measurement data and poor repeatability; Insufficient dynamic adaptability: When the fabric experiences slight shaking, shifting, or local wrinkles during operation, the non-contact system struggles to effectively identify the true surface contour, easily leading to misjudgments or data distortion, and its stability cannot meet the demands of continuous production. Utility Model Content

[0004] In view of the various shortcomings of the existing technology, an online fabric thickness measurement device is proposed to solve the technical problems that the existing technology has significant deficiencies in terms of continuity, accuracy, stability and automation of fabric thickness detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An online thickness measuring device for fabric curtains includes a mounting base plate, on which are disposed: The measuring component includes a displacement detector and a probe, the probe being drivenly connected to the sensing end of the displacement detector, the probe being configured to contact the surface of the curtain in a rolling manner and to move with the curtain. And a driving lifting element, which is used to drive the measuring component to move up and down, so that the probe contacts or separates from the surface of the curtain.

[0006] The technical solution is further configured such that the extension and retraction direction of the driving lifting element is perpendicular to the movement direction of the curtain.

[0007] The technical solution is further configured such that the displacement detector is a displacement sensor and the probe is a roller.

[0008] The technical solution is further configured such that the fixed end of the driving lifting element is connected to the mounting base plate, and the output end of the driving lifting element is connected to a first mounting bracket; The first mounting bracket has a first mounting hole, and the sensing end of the displacement detector passes through the first mounting hole and is locked.

[0009] The technical solution is further configured such that a limiting component is provided on the mounting base plate, and the limiting component is located on the side of the driving lifting element; The limiting component includes a lower limiting block, which is used to limit the extension limit position of the output end of the driving lifting element.

[0010] The technical solution is further configured such that the output end of the driving lifting element is also provided with a second mounting bracket, and the second mounting bracket is connected to the buffer. During the extension of the output end of the driving lifting element, the buffer abuts against the lower limit block and absorbs the impact force generated by the abutment, thereby limiting the extension limit position of the output end of the driving lifting element.

[0011] The technical solution is further configured such that the buffer is disposed on the mounting base, and the mounting base is connected to the second mounting bracket; The shock absorber's ejector pin is positioned directly opposite the lower limit block, and a limiting element is provided on the shock absorber's housing. The technical solution is further configured such that a protective cover is provided on the mounting base plate, and the measuring component, the driving lifting element, the limiting component and the buffer are all located inside the protective cover. The protective cover is provided with an opening for the probe to extend to its outside.

[0012] The technical solution is further configured to include a control valve, which is disposed on the mounting base plate and connected to the drive lifting element through a pipeline.

[0013] The beneficial effects of this utility model are: 1. By driving the lifting element to press the probe onto the surface of the fabric, and using the follow-up design of the probe to follow the movement of the fabric, continuous measurement of the fabric thickness on the production line is achieved. This overcomes the fatal weaknesses of manual measurement, which is "single-point, intermittent, and lagging". It also fundamentally avoids the problems of non-contact measurement (such as laser) being easily affected by environmental factors such as light absorption by rubber materials, scattering of surface texture, changes in workshop temperature, and equipment vibration. It can detect thickness fluctuations and defects in real time, greatly improving the level and timeliness of product quality control.

[0014] 2. The extension limit position of the output end of the drive lifting element is mechanically limited by the limiting component, and the impact force generated by the mechanical limit is buffered by the buffer. This ensures that the probe descends to the exact same position every time, guaranteeing that the contact pressure (measuring force) between the probe and the curtain is highly stable and consistent, and also avoids damage to the device due to rigid collision. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the online thickness measuring device for curtain fabric in an embodiment of this utility model; Figure 2 This is a schematic diagram of the online thickness measuring device for curtain fabric (excluding the protective cover) in an embodiment of this utility model; Figure 3 This is a top view of the online fabric thickness measuring device (excluding the protective cover) in an embodiment of this utility model.

[0016] In the attached diagram: 1. Mounting base plate; 2. Protective cover; 3. Control valve; 4. Opening; 5. Displacement detector; 6. Probe; 7. Drive lifting element; 8. First mounting bracket; 9. Upper limit component; 10. Lower limit block; 11. Second mounting bracket; 12. Buffer; 13. Mounting base; 14. Limit component; 15. Connecting column. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0018] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0019] According to an embodiment of this utility model, an online thickness measuring device for curtain fabric is provided. Please refer to [link / reference]. Figures 1 to 3 The device includes a mounting base plate 1, on which a measuring component and a driving lifting element 7 are provided. The measuring component uses a contact measurement method to measure the thickness of the curtain in real time. The driving lifting element 7 is used to drive the measuring component to perform lifting and lowering movements, so that the measuring component contacts or separates from the surface of the curtain.

[0020] Furthermore, the measuring component includes a displacement detector 5 and a probe 6, wherein the probe 6 is drivenly connected to the sensing end of the displacement detector 5, and the probe 6 is configured to contact the surface of the curtain in a rolling manner and move with the curtain.

[0021] By adopting the above scheme, the probe 6 is pressed onto the surface of the fabric by driving the lifting element 7, and the probe 6, with its follow-up design, moves with the fabric, enabling uninterrupted continuous measurement of the fabric thickness on the production line. This overcomes the fatal weaknesses of manual measurement, which is "single-point, intermittent, and lagging," and fundamentally avoids the problems of non-contact measurement (such as laser) being easily affected by environmental factors such as light absorption by rubber materials, scattering of surface textures, changes in workshop temperature, and equipment vibration. It can detect thickness fluctuations and defects in real time, greatly improving the level and timeliness of product quality control.

[0022] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The extension and retraction direction of the driving lifting element 7 is perpendicular to the movement direction of the curtain, that is, the lifting and retraction direction of the measuring component is perpendicular to the movement direction of the curtain.

[0023] Optionally, the lifting element 7 can be driven by a cylinder.

[0024] By adopting the above scheme, and setting the lifting and lowering direction of the measuring component to be perpendicular to the moving fabric surface, it is ensured that the displacement detector 5 and the probe 6 move in a straight line along the fabric thickness direction. This allows the displacement change of the probe 6 detected by the displacement detector 5 to directly and linearly correspond to the actual thickness change of the fabric, avoiding the cosine error introduced by the angle between the measurement direction and the thickness direction, and fundamentally guaranteeing the accuracy of the measurement.

[0025] Furthermore, the displacement detector 5 is configured as a displacement sensor, and the probe 6 is configured as a roller. Specifically, the roller is rotatably mounted on a roller mounting base, which is connected to the probe (sensing end) of the displacement sensor. The displacement sensor is preferably a contact-type displacement sensor.

[0026] By adopting the above technical solution, the roller is linked with the probe of the displacement sensor. During the measurement process, the fluctuation of the fabric thickness causes the roller (probe) to change its position in the fabric thickness direction. The amount of displacement change of the roller is the amount of fabric thickness change.

[0027] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The fixed end of the driving lifting element 7 is connected to the mounting base plate 1, and the output end of the driving lifting element 7 is connected to the first mounting bracket 8. The first mounting bracket 8 has a first mounting hole, and the sensing end of the displacement detector 5 passes through the first mounting hole and is locked.

[0028] Optionally, the first mounting bracket 8 is set in a direction parallel to the direction of movement of the curtain, the output end of the driving lifting element 7 is connected to the first end of the first mounting bracket 8, the first mounting hole is located at the second end of the first mounting bracket 8, and the second end of the first mounting bracket 8 is provided with a notch communicating with the first mounting hole, the locking bolt is located at the notch, and the notch is locked by a locking nut.

[0029] Alternatively, the driving lifting element 7 and the displacement detector 5 can be integrated into one unit, that is, a cylinder-type contact sensor can be used to integrate driving and measurement functions by utilizing the structural characteristics of the cylinder itself.

[0030] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The mounting base plate 1 is also provided with a limiting component, which is located on the side of the driving lifting element 7; The limiting component includes a lower limiting block 10 and an upper limiting member 9. The lower limiting block 10 is used to limit the extension limit position of the output end of the driving lifting element 7, and the upper limiting member 9 is used to limit the retraction limit position of the output end of the driving lifting element 7.

[0031] By adopting the above technical solution, the lower limit block 10 limits the descent (extension) limit position of the output end of the drive lifting element 7, ensuring that the contact pressure between the probe 6 and the curtain surface is completely consistent during each measurement.

[0032] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The output end of the driving lifting element 7 is also provided with a second mounting bracket 11, which is connected to the buffer 12. During the extension process of the output end of the driving lifting element 7, the buffer 12 abuts against the lower limit block 10 and absorbs the impact force generated by the abutment, so as to limit the extension limit position of the output end of the driving lifting element 7.

[0033] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The buffer 12 is disposed on the mounting base 13, and the mounting base 13 is connected to the second mounting bracket 11; The ejector pin of the buffer 12 is positioned directly opposite the lower limit block 10, and a limiting member 14 is provided on the housing of the buffer 12.

[0034] Furthermore, the housing of the buffer 12 is threadedly connected to the mounting base 13 and locked with a nut. The limiting member 14 is threadedly connected to the end of the housing of the buffer 12, so the buffering stroke of the pin of the buffer 12 can be adjusted by turning the limiting member 14 to adjust its installation position.

[0035] Optionally, the buffer 12 may be a hydraulic buffer.

[0036] By adopting the above technical solution, as the driving lifting element 7 drives the sensing end of the displacement detector 5 and the probe 6 to descend, when the pin of the buffer 12 abuts against the lower limit block 10, the pin of the buffer 12 retracts relative to its housing to achieve buffering under the impact of external force. When the limit member 14 abuts against the lower limit block 10, the pin of the buffer 12 retracts into place to avoid rigid collision damage to the device. At this time, the probe 6 is in place and starts working. After the probe 6 finishes working, the driving lifting element 7 drives the sensing end of the displacement detector 5 and the probe 6 to rise. When the mounting base 13 abuts against the upper limit member 9, the driving lifting element 7 retracts into place.

[0037] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 The mounting base plate 1 is provided with a protective cover 2, and the two are connected by a connecting post 15. The measuring component, the driving lifting element 7, the limiting component and the buffer are all located inside the protective cover 2, and the protective cover 2 is provided with an opening 4 for the probe 6 to extend to its outside.

[0038] In one embodiment of the online thickness measuring device for curtain fabric, please refer to Figures 1 to 3 It also includes a control valve 3, which is disposed on the mounting base plate 1 and connected to the drive lifting element 7 via a pipeline. The control valve 3 controls the on / off of the air passage of the drive lifting element 7 to achieve automated lifting control.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or components is not necessarily limited to those steps or components explicitly listed, but may include other steps or components not explicitly listed or inherent to such processes, methods, products, or devices.

[0040] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0041] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0042] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0043] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A device for online thickness measurement of curtain fabric, characterized in that, Includes a mounting base plate, wherein the mounting base plate is provided with: The measuring component includes a displacement detector and a probe, the probe being drivenly connected to the sensing end of the displacement detector, the probe being configured to contact the surface of the curtain in a rolling manner and to move with the curtain. And a driving lifting element, which is used to drive the measuring component to move up and down, so that the probe contacts or separates from the surface of the curtain.

2. The online thickness measuring device for curtain fabric according to claim 1, characterized in that, The extension and retraction direction of the driving lifting element is perpendicular to the movement direction of the curtain.

3. The online thickness measuring device for curtain fabric according to claim 1, characterized in that, The displacement detector is configured as a displacement sensor, and the probe is configured as a roller.

4. The online thickness measuring device for curtain fabric according to claim 1, characterized in that, The fixed end of the driving lifting element is connected to the mounting base plate, and the output end of the driving lifting element is connected to the first mounting bracket. The first mounting bracket has a first mounting hole, and the sensing end of the displacement detector passes through the first mounting hole and is locked.

5. The online thickness measuring device for curtain fabric according to claim 4, characterized in that, The mounting base plate is also provided with a limiting component, which is located on the side of the driving lifting element; The limiting component includes a lower limiting block, which is used to limit the extension limit position of the output end of the driving lifting element.

6. The online thickness measuring device for curtain fabric according to claim 5, characterized in that, The output end of the drive lifting element is also provided with a second mounting bracket, which is connected to the buffer. During the extension of the output end of the driving lifting element, the buffer abuts against the lower limit block and absorbs the impact force generated by the abutment, thereby limiting the extension limit position of the output end of the driving lifting element.

7. The online thickness measuring device for curtain fabric according to claim 6, characterized in that, The buffer is mounted on a mounting base, which is connected to a second mounting bracket. The shock absorber's ejector pin is positioned directly opposite the lower limit block, and a limiting element is provided on the shock absorber's housing.

8. The online thickness measuring device for curtain fabric according to claim 6 or 7, characterized in that, A protective cover is provided on the mounting base plate. The measuring component, the driving lifting element, the limiting component, and the buffer are all located inside the protective cover. The protective cover is provided with an opening for the probe to extend to the outside.

9. The online thickness measuring device for curtain fabric according to claim 1, characterized in that, It also includes a control valve, which is disposed on the mounting base plate and connected to the drive lifting element through a pipeline.

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