Non-woven fabric cover uniformity detection device

Abstract

The utility model relates to the technical field of non-woven fabric surface uniformity detection, in particular to a non-woven fabric surface uniformity detection device, which comprises a display and two mutually hinged detection seats, the two detection seats can be closed to clamp and press a non-woven fabric to be detected, the plane of each detection seat, which is tightly attached to the non-woven fabric, is a clamping surface, and the non-woven fabric surface uniformity detection device is arranged on the display. A plurality of light-transmitting holes are formed in the clamping surfaces, the end parts of one ends, opposite to the clamping surfaces, of the light-transmitting holes are closed, the plurality of light-transmitting holes in each clamping surface are distributed in an array, and the plurality of light-transmitting holes in one clamping surface are in one-to-one correspondence with the plurality of light-transmitting holes in the other clamping surface; illumination sources are arranged in the multiple light-transmitting holes in one clamping face, illuminance detection elements are arranged in the multiple light-transmitting holes in the other clamping face, light emitted by the illumination sources penetrates through the non-woven fabric to enter the illuminance detection elements, and the illumination value detected by the illuminance detection elements is the light-transmitting value of the cloth cover and is displayed on the displayer. And the uniformity of the cloth cover is judged by calculating the difference value between the maximum value and the minimum value of the light transmission value.

Description

TECHNICAL FIELD

[0001] The utility model relates to non - woven fabric cloth surface evenness detection technical field, especially to a kind of non - woven fabric cloth surface evenness detection device. BACKGROUND

[0002] At present, the uniformity of non-woven fabric cloth is generally measured by randomly cutting multiple non-woven fabric samples from different positions of the cloth. The area of each non-woven fabric sample should be consistent, typically 100 cm 2 If the area of the non-woven fabric sample is not exactly 100 cm 2 , appropriate adjustments need to be made to ensure the accuracy of the calculation results. According to the formula "gram weight = sample weight ÷ sample area", the gram weight of each non-woven fabric sample is calculated. Gram weight refers to the weight of an object per square meter (m 2 ) area.

[0003] After calculating the gram weight of each non-woven fabric sample, compare the gram weights of multiple non-woven fabric samples to find the maximum and minimum values. The difference between the maximum and minimum values is the deviation of the gram weight. Finally, the uniformity of the cloth is evaluated based on the deviation of the gram weight. The smaller the deviation, the higher the uniformity of the cloth; the larger the deviation, the lower the uniformity of the cloth.

[0004] However, measuring the uniformity of the cloth by the deviation of the gram weight has the following defects:

[0005] First, multiple non-woven fabric samples need to be cut to measure and calculate the gram weight deviation, resulting in low measurement efficiency.

[0006] Second, the measurement area of the gram weight relies on 100 cm 2 .

[0007] Third, the cloth made of wood pulp and cellulose fibers has certain moisture regain and water absorption, which affects the weight of the sample, thereby increasing the deviation of the measurement data and leading to inaccurate measurement precision. SUMMARY

[0008] One of the purposes of the utility model is to provide a non-woven fabric cloth surface evenness detection device, which aims to solve the technical problems of measuring the uniformity of the cloth by the deviation of the gram weight, cutting multiple non-woven fabric samples for measurement, reducing measurement efficiency, and the deviation caused by the moisture regain or water absorption of the cloth affecting the weight of the sample, thereby increasing the deviation of the measurement data and leading to inaccurate measurement precision.

[0009] In order to achieve the above object, the utility model provides a non - woven fabric cloth surface evenness detection device, including display and two mutually articulated detection seat, two detection seat can close clamping pressure the non - woven fabric of detection, each detection seat is close to the plane of non - woven fabric and is equipped with clamping surface, a plurality of light transmission holes are equipped on the clamping surface, the end of the light transmission hole is closed to the clamping surface, a plurality of light transmission holes on each clamping surface are array distribution, a plurality of light transmission holes on one clamping surface and a plurality of light transmission holes on another clamping surface one to one correspond;A plurality of light transmission holes on one clamping surface are equipped with light source, and a plurality of light transmission holes on another clamping surface are equipped with illuminance detection element, the light emitted by the light source passes through the opposite surface of the non - woven fabric clamped between two clamping surfaces and enters the illuminance detection element, and the illumination value measured by the illuminance detection element is used as the light transmission value of the cloth surface;The display is arranged on one of the two detection seats, the illuminance detection element is electrically connected with the display, and the display is used to display the illumination value measured by the illuminance detection element.

[0010] Preferably, the non - woven fabric cloth surface evenness detection device of the utility model further includes a circuit board, the circuit board is fixed on one detection seat, the circuit board is electrically connected with the light source and the illuminance detection element, and the circuit board is used for calculating the difference between the maximum value and the minimum value of a plurality of light transmission values and displaying the difference on the display.

[0011] Preferably, the non - woven fabric cloth surface evenness detection device further includes a controller electrically connected with the light source, which is used to control and adjust the light source brightness of the light source.

[0012] Preferably, the number of light transmission holes on each clamping surface is 9-16.

[0013] Preferably, the number of light transmission holes on each clamping surface is 9, and the area of the clamping surface is 100cm 2 .

[0014] Preferably, the light transmission hole is sleeved with a black hole sleeve, and the black hole sleeve is located at the periphery of the light source.

[0015] Preferably, a frosted layer is arranged on the inner wall surface of the black hole sleeve.

[0016] Preferably, in the state that the two clamping surfaces clamp the non - woven fabric, each light transmission hole on one clamping surface is coaxially aligned with each light transmission hole on another clamping surface.

[0017] Preferably, the diameter of the light transmission hole is 2cm, and the light intensity range of the light source is 100-100000 lux.

[0018] Preferably, the illuminance detection element is an illuminance sensor.

[0019] Compared with the prior art, the non-woven fabric surface uniformity detection device has the advantages that:

[0020] 1、The non-woven fabric surface uniformity detection device of the utility model in use, since the measured non-woven fabric is clamped and pressed by the clamping surface on the two detection seats, and the end of the light transmission hole on the clamping surface opposite to the clamping surface is closed, the external natural light is avoided to affect the test; so the light source irradiates the non-woven fabric clamped by the two clamping surfaces, the light emitted by the light source will pass through the opposite surface of the non-woven fabric and enter the illuminance detection element, the illuminance value measured by the illuminance detection element is taken as the light transmission value of the fabric surface, and the light transmission value of the fabric surface is displayed on the display, and the difference between the maximum value and the minimum value in the plurality of light transmission values is calculated, so that the uniformity of the fabric surface is determined; the difference is the uniformity of the measured non-woven fabric, the smaller the difference, the better the uniformity of the fabric surface, and the larger the difference, the worse the uniformity of the fabric surface.

[0021] 2、Compared with the traditional measurement method of the deviation of the grammage, the utility model adopts the deviation of the fabric surface light transmission value to measure the uniformity of the fabric surface, eliminates the grammage deviation caused by the moisture regain or water absorption of the fabric, thereby improving the detection precision of the fabric surface uniformity, and meets the detection requirements of high-standard fabric surface; meanwhile, the detection range of the fabric surface is reduced without relying on the fabric surface with a measurement area of 100cm 2 .

[0022] 3、The utility model adopts the deviation of the fabric surface light transmission value to measure the uniformity of the fabric surface, only needs to cut a non-woven fabric sample for measurement, and the difference between the maximum value and the minimum value in the plurality of fabric surface light transmission values of the tested non-woven fabric sample is calculated, so that the fabric surface uniformity of the non-woven fabric is determined, and a plurality of non-woven fabric samples are not needed to be cut for measurement, thereby greatly improving the measurement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic view of two detection seats in the embodiment of the utility model;

[0024] Figure 2 It is the structure schematic view of the non-woven fabric surface uniformity detection device of the utility model;

[0025] Figure 3 It is Figure 2 the top view;

[0026] Figure 4 It is Figure 3 the sectional view of A-A in the embodiment of the utility model;

[0027] Figure 5 It is the structure schematic view of the upper detection seat in the embodiment of the utility model;

[0028] Figure 6The utility model discloses an embodiment related to the structure diagram of the detection seat of lower end.

[0029] 1, detection seat;10, clamping surface;11, light transmission hole;12, light source;13, illuminance detection element;14, black hole cover;140, frosted layer;15, display;16, hinged shaft;2, non-woven fabric;3, power switch;4, test switch;5, circuit board. DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are merely exemplary and not intended to limit the present utility model.

[0031] In the description of the present utility model, it is to be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0032] In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0033] In the present utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and inclined upward of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and inclined downward of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] Please refer to Figure 1 - Figure 6The utility model provides a non - woven fabric cloth surface evenness detection device, including display 15 and two mutual hinged detection seat 1, two mutual hinged detection seat 1 is hinged through the hinged shaft 16, two detection seat 1 can close and hold the non - woven fabric 2 of detection, the plane of each detection seat 1 pasting non - woven fabric 2 is equipped with the clamping surface 10, a plurality of light transmission holes 11 are seted up on the clamping surface 10, the end of the one end of light transmission hole 11 back to the clamping surface 10 is closed, a plurality of light transmission holes 11 on each clamping surface 10 all show array distribution, a plurality of light transmission holes 11 on one clamping surface 10 correspond with a plurality of light transmission holes 11 on another clamping surface 10 one to one.

[0035] Among them, a plurality of light transmission holes 11 in one clamping surface 10 all are equipped with light source 12, and a plurality of light transmission holes 11 on another clamping surface 10 all are equipped with illuminance detection element 13;The light emitted by light source 12 passes through the opposite surface of the non - woven fabric 2 clamped between two clamping surfaces 10 and enters illuminance detection element 13, and the illumination value measured by illuminance detection element 13 is taken as the light transmission value of the cloth surface.

[0036] Refer to Figure 2 , display 15 is arranged on the upper surface of the upper end detection seat 1, which is convenient for testers to intuitively understand the test data displayed on display 15, and illuminance detection element 13 is electrically connected with display 15, and display 15 is used to display the illumination value measured by illuminance detection element 13.

[0037] In summary, when the non - woven fabric 2 cloth surface evenness detection device of the utility model is used, the measured non - woven fabric 2 is clamped and pressed by the clamping surface 10 on the two detection seats 1, and the end of the one end of the light transmission hole 11 on the clamping surface 10 is closed, so as to avoid the influence of external natural light on the test;So light source 12 irradiates the clamped non - woven fabric 2, and the light emitted by light source 12 will pass through the opposite surface of the non - woven fabric 2 and enter illuminance detection element 13, and the illumination value measured by illuminance detection element 13 is taken as the light transmission value of the cloth surface, and the light transmission value of the cloth surface is displayed on display 15;By calculating the difference between the maximum value and the minimum value in a plurality of light transmission values, the uniformity of the cloth surface can be determined;The difference is the uniformity of the measured non - woven fabric 2, the smaller the difference, the better the uniformity of the cloth surface, and the larger the difference, the worse the uniformity of the cloth surface.

[0038] Compared with the traditional measurement method by weight deviation, the utility model adopts the deviation of cloth surface light transmission value to measure the uniformity of the cloth surface, eliminates the weight deviation caused by cloth moisture regain or water absorption, thereby improving the detection accuracy of the cloth surface uniformity, and meeting the detection requirements of high standard cloth surface;Meanwhile, instead of relying on the cloth surface with a measurement area of 100cm 2 , the deviation of cloth surface light transmission value is used to measure the uniformity of the cloth surface, and the measurement range of the cloth surface can be reduced to about 3cm 2The unevenness of the cloth surface is controlled in a narrow range, so that the detection range of the cloth surface is greatly reduced.

[0039] In addition, the utility model discloses a cloth surface uniformity detection device, which measures the uniformity of the cloth surface of the non-woven fabric 2 by using the deviation of the cloth surface light transmittance value, only needs to cut a non-woven fabric 2 sample to measure, and can determine the cloth surface uniformity of the non-woven fabric 2 by testing the difference between the maximum value and the minimum value of the plurality of cloth surface light transmittance values of the non-woven fabric 2 sample, so that the plurality of non-woven fabric 2 samples do not need to be cut to measure, and the measurement efficiency is greatly improved.

[0040] Referring Figure 4 The cloth surface uniformity detection device of the utility model further includes a circuit board 5 electrically connected with the display 15, the circuit board 5 can be electrically connected with the display 15 in a wireless or wired mode, and the circuit board is fixed on the detection seat 1 at the upper end.

[0041] Of course, the circuit board 5 is also electrically connected with the light source 12 and the illuminance detection element 13, and the light source 12 and the illuminance detection element 13 can also be electrically connected with the circuit board in a wired or wireless mode; the circuit board is provided with an operation module, the difference between the maximum value and the minimum value of the plurality of light transmittance values is calculated through the operation module, and the difference is displayed on the display 15. In addition, the upper surface of the detection seat 1 at the upper end is also provided with a test switch 4 and a power switch 3, and the power switch 3 and the test switch 4 are electrically connected with the circuit board, after the power switch 3 is turned on, the detection device is connected with the mains, and the detection device can work after the test switch 4 is turned on.

[0042] In addition, the circuit board is also electrically connected with a controller, the controller can be fixed on the upper surface of the detection seat 1 at the upper end, and the controller is mainly used for controlling the light brightness of the light source 12.

[0043] The light intensity range of the light source 12 is 100-100000 lux. The light intensity of the light source 12 in the embodiment is 100 lux, and in other embodiments, the light intensity of the light source 12 can also be 100000 lux, which is not limited here. In actual application, the light brightness of the light source 12 is not limited, and the light brightness of the light source 12 can be arbitrarily set according to actual application.

[0044] In an embodiment, the number of the light transmission holes 11 on each clamping surface 10 is 9-16, the number of the light transmission holes 11 on each clamping surface 10 is 9, and the 9 light transmission holes 11 are arrayed on the clamping surface 10. 2 That is, the 9 light transmission holes 11 on each clamping surface 10 are arrayed on the 100cm 2The diameter of each light transmission hole 11 is 2cm, so as to avoid the diameter of the light transmission hole 11 being too large and affecting the penetration of the light through the cloth surface. Of course, in other embodiments, the number of light transmission holes 11 on each clamping surface 10 can also be 16; the diameter of each light transmission hole 11 can also be 3cm or 4cm, which is not limited herein.

[0045] In summary, in actual applications, the light transmission hole 11 is not limited to a diameter of 2cm, and any diameter of the light transmission hole can be set according to the required degree of the corresponding cloth surface; the number of light transmission holes 11 on each clamping surface 10 is also not limited to only 9, and the number of light transmission holes 11 with any diameter can be set according to the actual application.

[0046] In an embodiment, the light intensity detection element 13 is a light intensity sensor, which receives light and outputs a numerical value, that is, the light emitted by the light source 12 penetrates the cloth surface of the clamped non-woven fabric 2 and is received by the light intensity sensor, the light intensity received by the light intensity sensor can be converted into an electrical signal output displayed on the display 15, and the light value output by the light intensity sensor is the light transmission value of the cloth surface.

[0047] Of course, in actual applications, the light intensity sensor is not limited to being used as a tool for receiving light and outputting a numerical value; in other embodiments, a photodiode or a photosensitive transistor can also be used as a tool for receiving light and outputting a numerical value. Therefore, any suitable numerical value output tool determined by light can be used, including but not limited to a light intensity sensor or a photodiode or other tools or methods.

[0048] In an embodiment, the light transmission hole 11 is sleeved with a black hole sleeve 14, the black hole sleeve 14 is located at the periphery of the light source 12, the black hole sleeve 14 does not refract or reflect the light emitted by the light source 12, which is beneficial to the light emitted by the light source 12 penetrating the cloth surface of the clamped non-woven fabric 2.

[0049] Further, an abrasive layer 140 is arranged on the inner wall surface of the black hole sleeve 14, which can further avoid the light from being refracted or reflected.

[0050] In an embodiment, in the state that the two clamping surfaces 10 clamp the non-woven fabric 2, each light transmission hole 11 on one clamping surface 10 is coaxially aligned with each light transmission hole 11 on the other clamping surface 10, so as to avoid external light from entering the light transmission hole 11, thereby further improving the detection accuracy of the utility model.

[0051] It should be noted that, in actual applications, the utility model uses the deviation of the light transmission value of the cloth surface to measure the uniformity of the cloth surface, which is not limited to only measuring the non-woven fabric 2, and can also be applied to testing the uniformity of knitted cloth, household paper, industrial paper, special paper and the like.

[0052] The above merely describes preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A device for detecting the uniformity of nonwoven fabric surface, characterized in that, The application relates to a non-woven fabric testing device, which comprises a display and two mutually hinged testing seats capable of clamping and pressing a non-woven fabric to be tested, the plane of each testing seat closely attached to the non-woven fabric is provided as a clamping surface, a plurality of light transmission holes are arranged on the clamping surface, the end of each light transmission hole away from the clamping surface is closed, the light transmission holes on each clamping surface are arranged in an array, and the light transmission holes on one clamping surface correspond to the light transmission holes on the other clamping surface one by one; a light source is arranged in each light transmission hole on one clamping surface, and a light intensity detection element is arranged in each light transmission hole on the other clamping surface, the light emitted by the light source enters the light intensity detection element through the opposite surfaces of the non-woven fabric clamped between the two clamping surfaces, and the light value measured by the light intensity detection element is used as the light transmission value of the cloth surface; the display is arranged on one of the two testing seats, the light intensity detection element is electrically connected with the display, and the display is used for displaying the light value measured by the light intensity detection element.

2. The nonwoven fabric evenness detecting apparatus according to claim 1, wherein The application further comprises a circuit board fixed on one testing seat, the circuit board is electrically connected with the light source and the light intensity detection element, and the circuit board is used for calculating the difference between the maximum value and the minimum value of the light transmission values and displaying the difference on the display.

3. The nonwoven fabric basis uniformity detection device according to claim 1 or 2, characterized by The application further comprises a controller electrically connected with the light source and used for controlling and adjusting the light source brightness of the light source.

4. The nonwoven fabric uniformity detection device according to claim 1, wherein The number of light transmission holes on each clamping surface is 9-16.

5. The nonwoven fabric uniformity detection device according to claim 4, wherein The number of light transmission holes on each of the clamping surfaces is 9, and the area of the clamping surface is 100 cm 2 .

6. The nonwoven fabric uniformity detection device according to claim 1, wherein A black hole sleeve is arranged in each light transmission hole, and the black hole sleeve is located at the periphery of the light source.

7. The nonwoven fabric basis weight uniformity detection device according to claim 6, characterized by An abrasive layer is arranged on the inner wall surface of the black hole sleeve.

8. The nonwoven fabric uniformity detecting apparatus according to claim 1 or 5, wherein In the state that the non-woven fabric is clamped between the two clamping surfaces, each light transmission hole on one clamping surface is coaxially aligned with each light transmission hole on the other clamping surface.

9. The nonwoven fabric uniformity detecting apparatus according to claim 1 or 5, wherein The diameter of the light transmission hole is 2 cm, and the light intensity of the light source ranges from 100 to 100000 lux.

10. The nonwoven fabric uniformity detection apparatus according to claim 1, wherein The light intensity detection element is a light intensity sensor.

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