Fabric thickness measuring device and fabric production and processing equipment

Abstract

The utility model relates to the field of fabric thickness measurement, specifically relates to a kind of fabric thickness measuring device and fabric production and processing equipment.Fabric thickness measuring device includes the cloth passing component for supporting the fabric being transported, calibration component and the non-contact thickness measuring component for non-contact measurement the corrected front thickness of fabric at cloth passing component;Calibration component includes hold-down mechanism, longitudinal shift driving mechanism and displacement measuring mechanism, hold-down mechanism includes pressing plate and elastic element, longitudinal shift driving mechanism is connected hold-down mechanism, for driving hold-down mechanism moves towards cloth passing component to make pressing plate under the action of elastic element and fabric is pressed on cloth passing component;Displacement measuring mechanism is used to obtain fabric calibration thickness by measuring the displacement of pressing plate.The utility model can realize the non-contact thickness measurement of pile fabric, while ensuring high-precision detection fabric thickness, completely eliminate the interference to pile structure and the hindrance to fabric movement.

Description

Technical Field

[0001] This utility model relates to the field of fabric thickness measurement, specifically to a fabric thickness measurement device and fabric production and processing equipment. Background Technology

[0002] In the field of fabric thickness testing, thickness measurement methods are mainly divided into two categories: contact and non-contact. For fleece fabrics with a three-dimensional pile structure, such as velvet and coral fleece, non-contact thickness measurement technologies such as optical measurement and ultrasonic measurement have significant drawbacks: their measurement results will mistakenly include the height of the pile on the fabric surface into the overall thickness, causing the test data to deviate significantly from the true thickness, and failing to meet the precise control requirements for thickness indicators of fleece fabrics.

[0003] Therefore, the industry currently widely adopts contact-type thickness measuring devices. A typical structure includes two parallel clamping members that apply a constant clamping force to the fabric under the action of an elastic element. The thickness is determined by detecting the relative displacement between the two clamping members using a displacement sensor. However, this method has the following inherent drawbacks: Firstly, there is the issue of fabric movement resistance: the friction generated by the continuous contact between the clamping parts and the fabric surface increases the resistance when the fabric moves on the continuous production line, which can easily cause the fabric to stack or deviate, thus affecting production efficiency. Secondly, there is a risk of fabric damage: especially for high-density long-pile fabrics, the pressure applied by the clamping device may cause the pile to flatten, crush, or even break, damaging the appearance quality of the fabric.

[0004] The inventors of this patent, through a series of optimizations such as reducing clamping force and optimizing the pressure plate material, have been able to partially alleviate the damage problem, but it is difficult to balance the contradiction between measurement accuracy and fabric protection: when the clamping force is insufficient, the pressure plate cannot effectively contact the fabric substrate, resulting in the thickness value including the pile height; when the clamping force is too large, it aggravates physical damage. Therefore, there is an urgent need to develop a dedicated thickness measuring device for pile fabrics to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a fabric thickness measuring device that can realize non-contact thickness measurement of pile fabrics, while ensuring high-precision detection of fabric thickness and completely eliminating interference with the pile structure and obstruction to fabric movement.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a fabric thickness measuring device, comprising a fabric conveying component, a calibration component, and a non-contact thickness measuring component; wherein... The fabric conveying component is used to support the conveyed fabric, and the non-contact thickness measuring component is used to non-contactly measure the uncorrected thickness of the fabric at the fabric conveying component. The calibration assembly includes a pressing mechanism, a longitudinal movement driving mechanism, and a displacement measuring mechanism. The pressing mechanism includes a pressure plate and an elastic element. The longitudinal movement driving mechanism is connected to the pressing mechanism and is used to drive the pressing mechanism to move toward the fabric feeding member so that the pressure plate presses the fabric onto the fabric feeding member under the action of the elastic element. The displacement measuring mechanism is used to obtain the calibrated fabric thickness by measuring the displacement of the pressure plate.

[0007] Furthermore, the clamping mechanism also includes a mounting plate, the pressure plate being slidably mounted on the mounting plate via at least two sliding rods, and the elastic element being sleeved on the sliding rods, with one end abutting against the pressure plate and the other end abutting against the mounting plate.

[0008] Furthermore, in order to bring the calibration component and the fabric thickness measuring device as close as possible during the calibration phase, the fabric thickness measuring device also includes a lateral drive mechanism connected to the calibration component for driving the calibration component to move so that the pressure plate is located in the measurement area of ​​the non-contact thickness measuring component.

[0009] Furthermore, the calibration component uses the non-contact thickness measuring component as its displacement measuring mechanism.

[0010] Furthermore, the non-contact thickness measurement component includes a laser thickness gauge.

[0011] Furthermore, in order to achieve multi-point thickness measurement along the axial direction of the fabric component, the fabric thickness measuring device also includes an axis shift drive assembly. The axis shift drive assembly is connected to the calibration assembly and the non-contact thickness measuring assembly, and is used to drive the calibration assembly and the non-contact thickness measuring assembly to move along the axial direction of the fabric component.

[0012] Furthermore, for protective purposes, the fabric thickness measuring device also includes a mounting box, within which the calibration component, the non-contact thickness measuring component, and the axis displacement drive component are respectively located; wherein, The mounting box is provided with a clearance groove on the side facing the fabric component to avoid interfering with the operation of the calibration component and the non-contact thickness measuring component.

[0013] Furthermore, the fabric conveyor component is mounted to the mounting box via a connecting plate.

[0014] Furthermore, the fabric thickness measuring device also includes a controller, which is connected to the calibration component and the non-contact thickness measuring component respectively.

[0015] This utility model also relates to a fabric production and processing equipment, including a fabric thickness measuring device.

[0016] By adopting the above technical solution, this utility model can achieve non-contact thickness measurement of pile fabrics through the combination of calibration components and non-contact thickness measurement components. The detection accuracy is relatively high, and it will not affect or interfere with the movement of the fabric, nor will it damage the pile fabric. Thus, while ensuring high-precision detection of fabric thickness, it completely eliminates interference with the pile structure and obstacles to the movement of the fabric. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the fabric thickness measuring device of this utility model; Figure 2 This is a schematic diagram of the fabric thickness measuring device of this utility model after removing the top cover of the mounting box; Figure 3 This is a schematic diagram of the fabric thickness measuring device of this utility model after removing the mounting box; Figure 4 This is a schematic diagram of the fabric thickness measuring device of this utility model (excluding the mounting box and the fabric feeding component) during the calibration stage; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram of the fabric thickness measuring device of this utility model (excluding the mounting box and the fabric feeding component) during the measurement stage; Figure 7 for Figure 6 Enlarged view of part B; In the figure, 1. Fabric conveying component; 2. Calibration component; 21. Clamping mechanism; 211. Pressure plate; 212. Elastic element; 213. Mounting plate; 214. Slide rod; 22. Longitudinal movement drive mechanism; 3. Non-contact thickness measuring component; 4. Lateral movement drive mechanism; 5. Axis movement drive component; 6. Mounting box; 61. Clearance groove; 7. Connecting plate; 8. Guide rail. Detailed Implementation

[0018] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Example 1: As Figures 1 to 7 As shown, a fabric thickness measuring device includes: It includes a fabric conveying component 1, a calibration component 2, and a non-contact thickness measuring component 3; among which, The fabric conveying component 1 is used to support the conveyed fabric, the calibration component 2 is used to press the fabric onto the fabric conveying component 1 and measure the calibration thickness of the fabric at the pressed position, and the non-contact thickness measuring component 3 is used to non-contactly measure the uncorrected thickness of the fabric at the fabric conveying component 1. The calibration assembly 2 includes a pressing mechanism 21, a longitudinal movement drive mechanism 22, and a displacement measuring mechanism. The pressing mechanism 21 includes a pressure plate 211 and an elastic element 212. The longitudinal movement drive mechanism 22 is connected to the pressing mechanism 21 and is used to drive the pressing mechanism 21 to move toward the fabric feed member 1 so that the pressure plate 211 presses the fabric onto the fabric feed member 1 under the action of the elastic element 212. The displacement measuring mechanism is used to obtain the fabric calibration thickness by measuring the displacement of the pressure plate 211.

[0020] Specifically, after replacing the new fleece fabric, the conveyed fabric is supported by the fabric conveyor component 1 and undergoes a calibration phase: during the fabric conveying process, the thickness is measured at multiple measurement locations. For each measurement location, the calibration component 2 measures the calibrated thickness of the fabric, and the non-contact thickness measuring component 3 measures the uncorrected thickness of the fabric, and the measurements are recorded. After calibration, the measurement phase begins: during the fabric conveying process, the uncorrected thickness of the fabric is measured non-contactly using the non-contact thickness measuring component 3. Then, based on the data from the calibration phase, the calibrated thickness is converted into the final fabric thickness.

[0021] More specifically, a relationship can be established between the calibration thickness and the measurement results of the non-contact thickness measuring component 3 based on the measurement results of the calibration component 2 and the non-contact thickness measuring component 3 during the calibration stage (this relationship can be a fitted formula or multiple sets of recorded data that correspond one-to-one). Based on this relationship, the measurement results of the non-contact thickness measuring component 3 during the measurement stage can be converted into the calibration thickness (by substituting into the formula or looking up the data). This conversion process can be performed manually or by a controller.

[0022] This embodiment achieves non-contact thickness measurement of pile fabrics by pre-calibrating in conjunction with calibration component 2 and non-contact thickness measurement component 3. The measurement accuracy is relatively high, and it does not affect or interfere with the movement of the fabric, nor does it damage the pile fabric. Thus, while ensuring high-precision measurement of fabric thickness, it completely eliminates interference with the pile structure and obstacles to the movement of the fabric.

[0023] In this embodiment, the calibration component 2 can apply pressure within a preset range to the fabric under the action of the elastic element 212, pressing the fabric onto the fabric feed member 11. The pressure plate 211 moves toward or away from the fabric feed member 11 as the fabric thickness changes, thereby enabling the accurate thickness of the fabric to be detected during the calibration stage.

[0024] In addition, this fabric thickness measuring device is also suitable for measuring the thickness of non-fleece fabrics.

[0025] In this embodiment, there are multiple ways to assemble the pressure plate 211 and the elastic element 212, one of which is listed here.

[0026] like Figures 2 to 7As shown, the clamping mechanism 21 also includes a mounting plate 213. The pressure plate 211 is slidably mounted on the mounting plate 213 via at least two slide rods 214. An elastic element 212 is sleeved on the slide rods 214, with one end abutting against the pressure plate 211 and the other end abutting against the mounting plate 213. In a specific example, there are two slide rods 214 and one elastic element 212, which can be a spring.

[0027] In this embodiment, the fabric guide component 1 can be a non-rotatable fabric guide bar or a rotatable fabric guide roller, etc.

[0028] In this embodiment, preferably, the pressure plate 211 is slidably mounted on the mounting plate 213 via at least two slide rods 214, and the elastic element 212 is sleeved on the slide rods 214, with one end abutting against the pressure plate 211 and the other end abutting against the mounting plate 213.

[0029] In this embodiment, the longitudinal movement drive mechanism 22 can be a pneumatic cylinder, hydraulic cylinder, electric cylinder, linear module, etc., and the displacement measurement mechanism can be a laser rangefinder, etc.

[0030] In this embodiment, the non-contact thickness measuring component 3 can be a laser thickness gauge.

[0031] Example 2: Based on Example 1, as follows Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the fabric thickness measuring device also includes a transverse drive mechanism 4, which is connected to the calibration component 2 and is used to drive the calibration component 2 to move so that the pressure plate 211 is located in the measurement area of ​​the non-contact thickness measuring component 3.

[0032] Specifically, the calibration component 2 operates as follows during the calibration phase: the longitudinal drive mechanism 22 first drives the clamping mechanism 21 to move towards the fabric conveyor 1 beyond the non-contact thickness measuring component 3; the transverse drive mechanism 4 then drives the calibration component 2 to move laterally (in the fabric width direction) towards the non-contact thickness measuring component 3 until the pressure plate 211 is located within the measurement area of ​​the non-contact thickness measuring component 3; the longitudinal drive mechanism 22 then drives the clamping mechanism 21 to move towards the fabric conveyor 1 to clamp the fabric; the displacement measuring mechanism measures the displacement of the pressure plate 211 to measure the fabric calibration thickness; and finally, the component retracts. The retraction process is as follows: the longitudinal drive mechanism 22 first drives the clamping mechanism 21 to move away from the fabric conveyor 1, disengaging from the fabric; the transverse drive mechanism 4 then drives the calibration component 2 to move laterally (in the fabric width direction) away from the non-contact thickness measuring component 3 until the pressure plate 211 is misaligned with the non-contact thickness measuring component 3; the longitudinal drive mechanism 22 then continues to drive the clamping mechanism 21 to move away from the fabric conveyor 1.

[0033] The pressure plate 211 moves using this step, which allows the measuring points of the calibration component 2 and the non-contact thickness measuring component 3 to be as close as possible during the calibration stage, resulting in more accurate calibration results. During the calibration stage, if the fabric is not being conveyed, the measuring points of the calibration component 2 and the non-contact thickness measuring component 3 coincide; if the fabric is being conveyed, the measuring points of the calibration component 2 and the non-contact thickness measuring component 3 are aligned in the fabric extension direction and are relatively close, with almost no change in actual thickness.

[0034] In this embodiment, preferably, the calibration component 2 uses a non-contact thickness measuring component 3 as its displacement measuring mechanism.

[0035] In this way, on the one hand, a displacement measuring mechanism can be saved, and on the other hand, the calibration component 2 and the non-contact thickness measuring component 3 share a displacement measuring mechanism, which can further improve the accuracy of the calibration results, thereby improving the accuracy of the final fabric thickness obtained subsequently.

[0036] In this embodiment, the transverse drive mechanism 4 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, a linear module, etc., and is not specifically limited here.

[0037] It should be noted that when the calibration component 2 and the non-contact thickness measuring component 3 do not share the same sensor, the displacement measuring mechanism (displacement sensor) of the calibration component 2 can be a contact type, such as an inductive displacement sensor, or a non-contact displacement sensor, such as an inductive displacement sensor, a capacitive displacement sensor, a laser thickness gauge, etc.

[0038] Example 3: Based on Example 1 or Example 2, such as 2. Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the fabric thickness measuring device also includes an axis shift drive assembly 5, which is connected to the calibration assembly 2 and the non-contact thickness measuring assembly 3, and is used to drive the calibration assembly 2 and the non-contact thickness measuring assembly 3 to move along the axial direction of the fabric conveying member 1.

[0039] In this way, the calibration component 2 and the non-contact thickness measuring component 3 can be driven to move along the fabric width. During the calibration stage, multi-point calibration can be performed in the fabric width direction, and during the measurement stage, multi-point measurement in the fabric width direction can be realized, thereby improving the comprehensiveness of the measurement.

[0040] In this embodiment, the axis-shifting drive assembly 5 can be a conveyor belt, which is tensioned between two wheels, and one of the wheels is driven to rotate by a motor. The non-contact measuring assembly 3 is fixed on the conveyor belt. In this embodiment, without the lateral drive mechanism 4, the calibration assembly 2 can be fixedly installed on the conveyor belt or fixedly installed on the non-contact measuring assembly 3. In this embodiment, with the lateral drive mechanism 4, the lateral drive mechanism 4 is fixed on the non-contact measuring assembly 3, and the non-contact measuring assembly 3 moves with the conveyor belt, driving the calibration assembly 2 to move via the lateral drive mechanism 4.

[0041] In this embodiment, in order to make the calibration component 2 and the non-contact thickness measuring component 3 move smoothly, a guide rail 8 can also be provided, and both the calibration component 2 and the non-contact thickness measuring component 3 are slidably mounted on the guide rail 8.

[0042] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the fabric thickness measuring device also includes a mounting box 6, with the calibration component 2, the non-contact thickness measuring component 3, and the axis shift drive component 5 located inside the mounting box 6; wherein, The mounting box 6 is provided with a clearance groove 61 on the side facing the fabric component 1 to avoid interference with the operation of the calibration component 2 and the non-contact thickness measuring component 3.

[0043] Considering that fabrics may carry lint, oil, etc., which could affect the operation of calibration component 2 and non-contact thickness measuring component 3, a mounting box 6 is provided, and a clearance groove 61 is provided on the mounting box 6. This can protect calibration component 2 and non-contact thickness measuring component 3 without interfering with their operation, which is conducive to long-term stable operation.

[0044] Among them, the fabric component 1 can be installed in the mounting box 6 through the connecting plate 7.

[0045] Example 4: A fabric production and processing equipment, including the fabric thickness measuring device in any one of Examples 1, 2, or 3.

[0046] Fabric production and processing equipment can include napping machines, raising machines, shearing machines, coating machines, etc.

[0047] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fabric thickness measuring device, characterized in that, It includes a fabric conveying component (1), a calibration component (2), and a non-contact thickness measuring component (3); among which, The fabric conveying component (1) is used to support the conveyed fabric, and the non-contact thickness measuring component (3) is used to non-contactly measure the uncorrected thickness of the fabric at the fabric conveying component (1). The calibration assembly (2) includes a pressing mechanism (21), a longitudinal movement drive mechanism (22), and a displacement measuring mechanism. The pressing mechanism (21) includes a pressure plate (211) and an elastic element (212). The longitudinal movement drive mechanism (22) is connected to the pressing mechanism (21) and is used to drive the pressing mechanism (21) to move toward the fabric feed member (1) so that the pressure plate (211) presses the fabric onto the fabric feed member (1) under the action of the elastic element (212). The displacement measuring mechanism is used to obtain the fabric calibration thickness by measuring the displacement of the pressure plate (211).

2. The fabric thickness measuring device according to claim 1, characterized in that, The clamping mechanism (21) further includes a mounting plate (213). The pressure plate (211) is slidably mounted on the mounting plate (213) via at least two slide rods (214). The elastic element (212) is sleeved on the slide rods (214), with one end abutting against the pressure plate (211) and the other end abutting against the mounting plate (213).

3. The fabric thickness measuring device according to claim 1, characterized in that, It also includes a transverse drive mechanism (4), which is connected to the calibration component (2) and is used to drive the calibration component (2) to move the pressure plate (211) to the measurement area of ​​the non-contact thickness measuring component (3).

4. The fabric thickness measuring device according to claim 3, characterized in that, The calibration component (2) uses the non-contact thickness measuring component (3) as its displacement measuring mechanism.

5. The fabric thickness measuring device according to any one of claims 1 to 4, characterized in that, The non-contact thickness measurement component (3) includes a laser thickness gauge.

6. The fabric thickness measuring device according to any one of claims 1 to 4, characterized in that, It also includes an axis shift drive assembly (5), which is connected to the calibration assembly (2) and the non-contact thickness measuring assembly (3) and is used to drive the calibration assembly (2) and the non-contact thickness measuring assembly (3) to move along the axial direction of the fabric conveyor (1).

7. The fabric thickness measuring device according to claim 6, characterized in that, It also includes a mounting box (6), in which the calibration component (2), the non-contact thickness measuring component (3), and the shaft shift drive component (5) are respectively located; wherein, The mounting box (6) is provided with a clearance groove (61) on the side facing the overlay member (1) to avoid interfering with the operation of the calibration component (2) and the non-contact thickness measuring component (3).

8. The fabric thickness measuring device according to claim 7, characterized in that, The fabric-covering component (1) is installed in the mounting box (6) via a connecting plate (7).

9. The fabric thickness measuring device according to claim 1, characterized in that, It also includes a controller, which is connected to the calibration component (2) and the non-contact thickness measurement component (3).

10. A fabric production and processing equipment, characterized in that, Includes the fabric thickness measuring device according to any one of claims 1-9.

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