Flash non-woven fabric uniformity detection equipment and production line

Abstract

The invention provides flash non-woven fabric uniformity detection equipment and a production line, and the equipment comprises a conveyor which is used for driving flash non-woven fabric to move along a first direction, centering assemblies which are oppositely arranged at two sides of the conveyor along a second direction and are used for centering the flash non-woven fabric on the conveyor, and a measurement module which is used for measuring the width of the flash non-woven fabric, the light source module is used for emitting light to irradiate the upper surface of the flash non-woven fabric, the light intensity detection module comprises a rotating mechanism, a mounting plate and light intensity measurement units, the rotating mechanism is arranged on the conveyor, the mounting plate is arranged at the output end of the rotating mechanism, the light intensity measurement units are arranged on the mounting plate in an array mode, and the light intensity measurement units are used for receiving the light intensity of the lower surface of the flash non-woven fabric. The flash non-woven fabric uniformity detection device has the beneficial effects that the uniformity of the flash non-woven fabric can be detected in real time in the production process of the flash non-woven fabric, and the flash non-woven fabric uniformity detection device is suitable for uniformity detection of various flash non-woven fabrics with different widths and is high in universality.

Description

Technical Field

[0001] The invention relates to the field of flash steamed nonwoven fabric equipment, and in particular to a flash steamed nonwoven fabric uniformity detection device and a production line. Background Art

[0002] In the prior art, non-woven fabric uniformity detection equipment can generally only detect non-woven fabrics of one width, with low detection efficiency, and cannot be applied to the uniformity detection of non-woven fabrics of different widths. In addition, in the prior art, it is generally necessary to sample part of the non-woven fabric for detection after the non-woven fabric is rolled up. Since the uniformity detection equipment cannot be connected to the non-woven fabric production line, it is impossible to perform real-time detection of uniformity during the non-woven fabric production process. If some areas of the non-woven fabric are uneven during the production process, but the sample of the uneven area is not taken, it is easy to miss the detection, and the measurement accuracy is low, resulting in the outflow of defective products, which is not conducive to the automated production of non-woven fabrics.

[0003] At present, in the field of flash spinning, the uniformity detection of the flash non-woven fabric production process also faces the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the present invention provides a flash nonwoven fabric uniformity detection device and a production line.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] A flash nonwoven fabric uniformity detection device, comprising:

[0009] The conveyor is used for driving the flash-steamed non-woven fabric to move along a first direction.

[0010] The centering components are arranged on both sides of the conveyor relatively along the second direction, and are used to center the flash-steamed non-woven fabric on the conveyor.

[0011] The measuring module is arranged on the conveying path of the conveyor and is used for measuring the width of the flash-steamed nonwoven fabric.

[0012] The light source module is arranged on the conveying path of the conveyor and is used for emitting light to illuminate the upper surface of the flash-steamed non-woven fabric.

[0013] The light intensity detection module includes a rotating mechanism, a mounting plate, and a light intensity measuring unit. The rotating mechanism is arranged on the conveyor. A mounting plate is provided at the output end of the rotating mechanism to drive the mounting plate to rotate. The mounting plate is arranged below the flash-steamed non-woven fabric. The rotation axis of the mounting plate is arranged on the vertical mid-plane of the conveyor. The mounting plate array is provided with a light intensity measuring unit, and the light intensity measuring unit is used to receive the light intensity on the lower surface of the flash-steamed non-woven fabric.

[0014] Among them, according to the width of the flash-steamed non-woven fabric measured by the measuring module, the rotating mechanism drives the mounting plate to rotate to a preset angle α, so that the detection range of the light intensity measurement unit corresponds to the width of the flash-steamed non-woven fabric, and the transmittance of the flash-steamed non-woven fabric within the detection range of the light intensity measurement unit is measured.

[0015] Preferably, the centering component includes a stepper motor and an elastic push plate, the stepper motor and the conveyor are fixed, and an elastic push plate is provided at the output end of the stepper motor, and the stepper motor is used to drive the elastic push plate to move along the second direction.

[0016] Preferably, the elastic push plate includes a connecting plate, a guide shaft, a spring and a push plate body. The connecting plate is connected to the output shaft of the stepper motor, one end of the guide shaft is fixed to the conveyor, and the other end passes through the connecting plate and the push plate body in sequence. The guide shaft sleeve is provided with a spring, one end of the spring is abutted against the connecting plate, and the other end is abutted against the push plate body. The spring has a tendency to push the push plate body to move in the second direction, and a limiting groove is provided on one end surface of the push plate body facing the non-woven fabric.

[0017] Preferably, it also includes a flattening component for flattening the flash-steamed nonwoven fabric, the flattening component is arranged between the centering component and the measuring module, the flattening component includes a first flattening unit and a second flattening unit symmetrically arranged on the conveyor, and the first flattening unit and the second flattening unit are arranged in a V shape.

[0018] Preferably, the first flattening unit and the second flattening unit have the same structure. The first flattening unit includes a mounting frame and a rotating roller. The mounting frame is arranged on the conveyor, and the length direction of the mounting frame is set at an angle to the first direction. The rotating rollers are arranged in sequence at intervals in the length direction of the mounting frame, and the rotating rollers are in contact with the lower surface of the flash-steamed non-woven fabric.

[0019] Preferably, the preset angle α has a value range of 0°-90°.

[0020] Preferably, the length of the mounting plate is L, the width is M, and the width of the flash-steamed nonwoven fabric is W, satisfying L*sinα+M*conα=W.

[0021] Preferably, the light source module includes a housing, a light source unit, and a shading assembly. The light source unit and the shading assembly are arranged in the housing. The light source module is used to emit light, and the shading assembly is used to adjust the irradiation range of the light source module to correspond to flash-steamed non-woven fabrics of different widths.

[0022] Preferably, the shading assembly includes an electric cylinder, a shading plate and a telescopic rod. The electric cylinder is arranged in a box, and the output end of the electric cylinder is connected to the middle part of the telescopic rod. The two side walls of the box that are relatively arranged along the second direction are hinged to the upper end of the shading plate, and the lower ends of the two shading plates are hinged to one end of the telescopic rod.

[0023] The present invention also provides a flash non-woven fabric production line, including the above-mentioned flash non-woven fabric uniformity detection equipment, and also including a discharging device and a winding device, the discharging device is used to produce flash non-woven fabrics, the winding device is used to wind up the flash non-woven fabrics, the discharging end of the discharging device is connected to the feeding end of the conveyor, and the feeding end of the winding device is connected to the discharging end of the conveyor.

[0024] (III) Beneficial effects

[0025] The beneficial effects of the present invention are as follows: by adopting the above technical scheme, the flash-steamed non-woven fabric is transported by a conveyor, the light source module emits light to illuminate the upper surface of the flash-steamed non-woven fabric, and the conveyor can be connected to the production line of the flash-steamed non-woven fabric through the light intensity measuring unit arrayed on the lower surface of the flash-steamed non-woven fabric. During the production process of the flash-steamed non-woven fabric, the light transmittance of the flash-steamed non-woven fabric within the detection range of the light intensity measuring unit can be measured, and the standard dynamic range of the flash-steamed non-woven fabric is determined by the measured light transmittance. If more than 90% of the measured light transmittance data are within the standard dynamic range, it indicates that the flash-steamed non-woven fabric has good uniformity, otherwise, it indicates that the flash-steamed non-woven fabric has poor uniformity. In addition, in order to adapt to the uniformity detection of flash-steamed non-woven fabrics of various widths, a centering component is provided to center the flash-steamed non-woven fabric on the conveyor belt, and the rotation axis of the flash-steamed non-woven fabric mounting plate is arranged on the vertical mid-plane of the conveyor. According to the width of the flash-steamed non-woven fabric measured by the measuring module, the rotating mechanism drives the mounting plate to rotate to a preset angle α, ensuring that the detection range of the light intensity measurement unit can always correspond to flash-steamed non-woven fabrics of different widths, thereby improving the measurement accuracy. Moreover, the centering component centers the flash-steamed non-woven fabric on the conveyor belt, which can avoid unevenness during the subsequent winding process of the flash-steamed non-woven fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a flash steamed nonwoven fabric uniformity detection device.

[0027] Figure 2 The present invention is a schematic diagram of the structure of a light source module of a flash nonwoven fabric uniformity detection device.

[0028] Figure 3 It is a top view of a flash nonwoven fabric uniformity detection device.

[0029] Figure 4 The present invention is a schematic diagram of the structure of a centering component of a flash nonwoven fabric uniformity detection device.

[0030] Figure 5The present invention is a schematic diagram of the structure of a light shielding component of a flash steamed nonwoven fabric uniformity detection device.

[0031] Figure 6 The present invention is a schematic structural diagram of a light source unit of a flash nonwoven fabric uniformity detection device.

[0032] Figure 7 The present invention is a structural schematic diagram of a light intensity detection module of a flash steamed nonwoven fabric uniformity detection device.

[0033] Figure 8 This is a reference diagram of the working status of a light intensity detection module of a flash steamed nonwoven fabric uniformity detection device.

[0034] [Description of Reference Numerals]

[0035] 1. Conveyor.

[0036] 2. Centering assembly, 21. Stepping motor; 22. Elastic push plate; 221. Connecting plate; 222. Guide shaft; 223. Spring; 224. Push plate body; 2241. Limiting groove. 3. Measuring module.

[0037] 4. Light source module, 41 housing, 42. Light source unit, 43. Shading assembly, 431. Electric cylinder, 432. Shading plate, 433. Telescopic rod, 4331. Hollow rod, 4332. Connecting rod. 5. Light intensity detection module, 51 rotating mechanism, 52. Mounting plate, 53. Light intensity measurement unit.

[0038] 6. Flattening assembly, 61. First flattening unit; 62. Second flattening unit; 611. Mounting frame; 612. Rotating roller.

[0039] X, first direction, Y, second direction, A, flash-steamed nonwoven fabric. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0041] See also Figures 1 to 8 The present invention provides a flash nonwoven fabric uniformity detection device, including a conveyor 1, a centering component 2, a measuring module 3, a light source module 4 and a light intensity detection module 5. For ease of description, refer to Figure 1 , Figure 2 , Figure 3 , define the length direction of the conveyor 1 as the first direction X, and the width direction of the conveyor 1 as the second direction Y.

[0042] Among them, the conveyor 1 is used to drive the flash-steamed non-woven fabric A to move along the first direction X. The centering component 2 is relatively arranged on both sides of the conveyor 1 along the second direction Y, and is used to center the flash-steamed non-woven fabric A on the conveyor 1. The measuring module 3 is arranged on the conveying path of the conveyor 1 and is used to measure the width of the flash-steamed non-woven fabric A. In this embodiment, the measuring module 3 adopts a binocular width meter, which can realize accurate measurement of the width of the flash-steamed non-woven fabric A. The light source module 4 is arranged on the conveying path of the conveyor 1 and is used to emit light to illuminate the upper surface of the flash-steamed non-woven fabric A.

[0043] It should be made clear that traditional non-woven fabrics usually do not have significant light transmittance, because they are designed to provide certain covering and filtering functions, rather than allowing light to penetrate freely like transparent materials, and the light transmittance of traditional non-woven fabrics is related to their thickness. The increase in thickness will lead to a significant decrease in light transmittance. The fibers of flash non-woven fabrics are very fine, and the stacking and interweaving of the fibers are uneven, which results in some areas being able to block direct penetration of some light, but some light will be transmitted through the gaps between the fibers, making the flash non-woven fabric have a certain degree of light transmittance.

[0044] When light is irradiated on the upper surface of the flash steamed non-woven fabric, the flash steamed non-woven fabric light intensity detection module 5 can be used to receive the light intensity on the lower surface of the flash steamed non-woven fabric, measure the transmittance of the flash steamed non-woven fabric within the detection range of the light intensity detection module 5, and then process the measured transmittance data. If more than 90% of the transmittance data of this group is within the standard dynamic range, it indicates that the uniformity of the detected flash steamed non-woven fabric is good; otherwise, it indicates that the obtained transmittance data fluctuates greatly, and the fibers in multiple areas of the measured flash steamed non-woven fabric are unevenly laid. If the transmittance data of multiple groups of products detected do not meet the above-mentioned good uniformity, it is necessary to adjust the production process parameters or equipment of the flash steamed non-woven fabric.

[0045] Specifically, the light intensity detection module 5 includes a rotating mechanism 51, a mounting plate 52, and a light intensity measuring unit 53. The rotating mechanism 51 is arranged on the conveyor 1. The output end of the rotating mechanism 51 is provided with a mounting plate 52 for driving the mounting plate 52 to rotate. The mounting plate 52 is arranged below the flash-steamed non-woven fabric. The rotation axis of the mounting plate 52 is arranged on the vertical mid-plane of the conveyor 1. The mounting plate 52 array is provided with a light intensity measuring unit 53. The light intensity measuring unit 53 is used to receive the light intensity on the lower surface of the flash-steamed non-woven fabric. At this time, the transmittance of the flash-steamed non-woven fabric within the detection range of the light intensity measuring unit 53 is measured.

[0046] In this embodiment, the light intensity measuring unit 53 is a light intensity sensor, wherein the rotating mechanism 51 drives the mounting plate 52 to rotate so that the detection range of the light intensity measuring unit 53 corresponds to flash-steamed non-woven fabrics of different widths. At the same time, the light intensity of the light source module 4 is adjustable within the range of 0-10000 lux.

[0047] In a specific embodiment, the light intensity used by the light source module 4 is 4000 lux. When the gram weight of the detected flash-steamed non-woven fabric is between 40g / ㎡ and 49g / ㎡, the corresponding standard dynamic range is ±3% of the average value of the measured transmittance data, that is, the average transmittance of the group of data is 27.51%. If more than 90% of the transmittance data of the group is between 24.51% and 30.51% (standard dynamic range), it indicates that the uniformity of the flash-steamed non-woven fabric is good, otherwise, the uniformity is poor. It should be noted that the standard dynamic ranges corresponding to flash-steamed non-woven fabrics of different gram weight ranges are different.

[0048] Since the above modules are electrically connected to the control system, the control system operates the rotating mechanism 51 to drive the mounting plate 52 to rotate to a preset angle α according to the width of the flash steamed non-woven fabric measured by the measuring module 3, so that the detection range of the light intensity measuring unit 53 corresponds to the width of the flash steamed non-woven fabric.

[0049] Preferably, in order to make the flash-steamed nonwoven fabric always centered on the conveyor 1, and to be suitable for the flash-steamed nonwoven fabrics of different widths, refer to Figure 1 , Figure 4 The centering component 2 includes a stepper motor 21 and an elastic push plate 22, wherein the stepper motor 21 and the conveyor 1 are fixed, and an elastic push plate 22 is provided at the output end of the stepper motor 21, and the stepper motor 21 is used to drive the elastic push plate 22 to move along the second direction Y, so that the flash-steamed non-woven fabric is always in a centered state on the conveyor 1, and the stepper motor 21 can adjust the movement distance of the elastic push plate 22 in the second direction Y according to the measured width of the flash-steamed non-woven fabric, thereby being suitable for centering flash-steamed non-woven fabrics of different widths.

[0050] Preferably, in order to simplify the structure of the elastic push plate 22, in this embodiment, the elastic push plate 22 includes a connecting plate 221, a guide shaft 222, a spring 223 and a push plate body 224. Figure 4 , wherein the connecting plate 221 is connected to the output shaft of the stepping motor 21, one end of the guide shaft 222 is fixed to the conveyor 1, and the other end passes through the connecting plate 221 and the push plate body 224 in sequence, the guide shaft 222 is sleeved with a spring 223, one end of the spring 223 is against the connecting plate 221, and the other end is against the push plate body 224, the spring 223 has a tendency to push the push plate body 224 to move along the second direction Y, in order to facilitate the flash steamed non-woven fabric to be locked and limited when pushing the flash steamed non-woven fabric, a limiting groove 2241 is provided on one end surface of the push plate body 224 facing the flash steamed non-woven fabric, such as Figure 4 As shown, the upper and lower inner walls of the limiting groove 2241 are provided with guiding inclined surfaces, which are beneficial to guiding and limiting when engaging with the flash-steamed non-woven fabric.

[0051] Since the centering component 2 pushes the two ends of the flash steamed non-woven fabric, in order to avoid wrinkles on both sides of the flash steamed non-woven fabric and affect the subsequent uniformity detection accuracy, the present invention also includes a flattening component 6 for flattening the flash steamed non-woven fabric. The flattening component 6 is arranged between the centering component 2 and the measuring module 3. The flattening component 6 includes a first flattening unit 61 and a second flattening unit 62 symmetrically arranged on the conveyor 1. The first flattening unit 61 and the second flattening unit 62 are arranged in a V shape.

[0052] Further, in order to simplify the design of the flattening unit, in this embodiment, the first flattening unit 61 and the second flattening unit 62 have the same structure, wherein the first flattening unit 61 includes a mounting frame 611 and a rotating roller 612, the mounting frame 611 is arranged on the conveyor 1, and the length direction of the mounting frame 611 is arranged at an angle to the first direction X, and the rotating rollers 612 are arranged in sequence in the length direction of the mounting frame 611, and the rotating rollers 612 are in contact with the lower surface of the flash non-woven fabric. That is, after being pushed by the centering component 2, refer to Figure 3 Since the rotating drum 612 is set at an angle to the first direction X, when the flash steamed non-woven fabric passes through the rotating drum 612, both sides of the flash steamed non-woven fabric will be subjected to a pulling force along the second direction Y, so that the wrinkles on both sides of the flash steamed non-woven fabric that may appear due to the push of the centering component 2 are flattened.

[0053] See also Figure 8 In this embodiment, in order to be applicable to the uniformity detection of flash-steamed non-woven fabrics of different widths, the preset value range of the angle α is 0°-90°. Furthermore, in order to ensure that the detection range of the light intensity measurement unit 53 does not decrease with the change of the width of the flash-steamed non-woven fabric after the mounting plate 52 is rotated, and the measurement accuracy is ensured, in this embodiment, refer to Figure 8 The length of the mounting plate 52 is L, the width is M, and the width of the flash-steamed nonwoven fabric is W, satisfying L*sinα+M*conα=W.

[0054] Further, in this embodiment, in order to facilitate the setting of the light source module 4, the light source module 4 includes a box 41, a light source unit 42, and a light shielding assembly 43, wherein the light source unit 42 and the light shielding plate 432 assembly are arranged in the box 41, and the box 41 is used to isolate the influence of external light on the uniformity detection and provide a dark environment. The light source module 4 is used to emit light, see Figure 6 In this embodiment, the light source module 4 includes a reflector and an LED lamp arrayed on the reflector, and the shading component 43 is used to adjust the irradiation range of the light source module 4 to correspond to flash-steamed non-woven fabrics of different widths.

[0055] For further information, see Figure 1 , Figure 4Since the width of the flash-steamed non-woven fabric changes, when the light source unit 42 irradiates the flash-steamed non-woven fabric, part of the light will enter the detection range of the light intensity detection module 5 through the gap between the flash-steamed non-woven fabric and the conveyor 1, affecting the uniformity detection result. Therefore, in the present invention, when the width of the flash-steamed non-woven fabric changes, the width of the light source unit 42 irradiated on the flash-steamed non-woven fabric should also change synchronously. Therefore, refer to Figure 5 The light shielding assembly 43 includes an electric cylinder 431, a light shielding plate 432 and a telescopic rod 433, wherein the electric cylinder 431 is arranged in the box body 41, the output end of the electric cylinder 431 is connected to the middle of the telescopic rod 433, the two side walls of the box body 41 oppositely arranged along the second direction Y are hinged to the upper end of the light shielding plate 432, and the lower ends of the two light shielding plates 432 are hinged to one end of the telescopic rod 433. When the width of the flash-steamed non-woven fabric changes, the length of the output shaft of the electric cylinder 431 in the vertical direction changes, driving the telescopic rod 433 to extend and retract, and the light shielding plate 432 rotates, thereby shielding the gap between the flash-steamed non-woven fabric and the conveyor 1. In this embodiment, in order to facilitate the design of the telescopic rod 433, the telescopic rod 433 includes a hollow rod 4431 and a connecting rod 4332. One end of the connecting rod 4332 is hinged to the sunshade 432, and the other end is inserted into the hollow rod 4431. The other end of the hollow rod 4431 is hinged to another sunshade 432. In order to prevent the telescopic rod 433 from getting stuck when extending, a return spring 223 (not shown in the figure) is also provided in the hollow rod 4431. One end of the return spring 223 is against the inner wall of the hollow rod 4431, and the other end is against the end of the connecting rod 4332. The return spring 223 has a tendency to push the connecting rod 4332 away from the hollow rod 4431.

[0056] Furthermore, in order to facilitate the fully automatic detection and production of flash-steamed non-woven fabrics, the present invention also provides a flash-steamed non-woven fabric production line, including any of the flash-steamed non-woven fabric uniformity detection equipment mentioned above, and also including a discharging device and a winding device, the discharging device is used to produce flash-steamed non-woven fabrics, the winding device is used to wind up the flash-steamed non-woven fabrics, the discharging end of the discharging device is connected to the feeding end of the conveyor 1, and the feeding end of the winding device is connected to the discharging end of the conveyor 1.

[0057] The working principle of the present invention is as follows: Figure 1 , Figure 8, the centering component 2 is activated to center the flash steamed non-woven fabric on the conveyor 1, and the measuring module 3 detects the width of the flash steamed non-woven fabric. According to the measured width of the flash steamed non-woven fabric, the rotating mechanism 51 drives the mounting plate 52 to rotate the preset angle α, so that the detection range of the light intensity measuring unit 53 corresponds to the width of the flash steamed non-woven fabric. Then the light source module 4 emits light to irradiate the upper surface of the flash steamed non-woven fabric, and the light intensity measuring unit 53 receives the light intensity of the lower surface of the flash steamed non-woven fabric. At this time, the transmittance of the flash steamed non-woven fabric within the detection range of the light intensity measuring unit 53 is measured, and then the measured transmittance data is processed. If more than 90% of the transmittance data of the group is within the standard dynamic range, it indicates that the detected flash steamed non-woven fabric has good uniformity. Otherwise, it indicates that the obtained transmittance quantity fluctuates greatly, and the fibers in multiple areas of the measured flash steamed non-woven fabric are unevenly laid. If the transmittance data of multiple groups of products detected do not meet the above-mentioned good uniformity condition, it is necessary to adjust the production process parameters or equipment of the flash non-woven fabric.

[0058] The flash-steamed nonwoven fabric uniformity detection device and production line of the present invention, the flash-steamed nonwoven fabric is transported by a conveyor 1, the light source module 4 emits light to illuminate the upper surface of the flash-steamed nonwoven fabric, and the conveyor 1 can be connected to the production line of the flash-steamed nonwoven fabric through the light intensity measurement unit 53 arranged in an array on the lower surface of the flash-steamed nonwoven fabric. During the production process of the flash-steamed nonwoven fabric, the light transmittance of the flash-steamed nonwoven fabric within the detection range of the light intensity measurement unit and the standard dynamic range of the flash-steamed nonwoven fabric can be measured. If more than 90% of the measured light transmittance data are within the standard dynamic range, it indicates that the flash-steamed nonwoven fabric has good uniformity. Otherwise, it indicates that the flash-steamed nonwoven fabric has poor uniformity. The uniformity of the flash-steamed nonwoven fabric is detected in real time to avoid missed detection. In addition, in order to adapt to the uniformity detection of flash-steamed non-woven fabrics of various widths, a centering component 2 is provided to center the flash-steamed non-woven fabric on the conveyor belt, and the rotation axis of the flash-steamed non-woven fabric mounting plate 52 is arranged on the vertical mid-plane of the conveyor 1. According to the width of the flash-steamed non-woven fabric measured by the measuring module 3, the rotating mechanism 51 drives the mounting plate 52 to rotate to a preset angle α, ensuring that the detection range of the light intensity measurement unit 53 can always correspond to flash-steamed non-woven fabrics of different widths, thereby improving the measurement accuracy. Moreover, the centering component 2 centers the flash-steamed non-woven fabric on the conveyor belt, which can avoid unevenness of the flash-steamed non-woven fabric during the subsequent winding process.

[0059] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0060] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flash nonwoven fabric uniformity detection device, characterized in that: include: The conveyor is used to drive the flash-steamed nonwoven fabric to move along a first direction, A centering component, arranged on both sides of the conveyor relatively along the second direction, and used for centering the flash-steamed non-woven fabric on the conveyor; A measuring module, disposed on a conveying path of the conveyor, for measuring a width of the flash-steamed nonwoven fabric; A light source module, arranged on the conveying path of the conveyor, for emitting light to illuminate the upper surface of the flash-steamed non-woven fabric; A light intensity detection module, comprising a rotating mechanism, a mounting plate, and a light intensity measuring unit, wherein the rotating mechanism is arranged on the conveyor, the mounting plate is arranged at the output end of the rotating mechanism for driving the mounting plate to rotate, the mounting plate is arranged below the flash-steamed non-woven fabric, the rotation axis of the mounting plate is arranged on the vertical mid-plane of the conveyor, the mounting plate array is provided with the light intensity measuring unit, and the light intensity measuring unit is used to receive the light intensity of the lower surface of the flash-steamed non-woven fabric; Among them, according to the width of the flash-steamed non-woven fabric measured by the measuring module, the rotating mechanism drives the mounting plate to rotate to a preset angle α, so that the detection range of the light intensity measurement unit corresponds to the width of the flash-steamed non-woven fabric, and the transmittance of the flash-steamed non-woven fabric within the detection range of the light intensity measurement unit is measured.

2. The flash nonwoven fabric uniformity detection device according to claim 1, characterized in that: The centering component includes a stepper motor and an elastic push plate. The stepper motor and the conveyor are fixed, and the elastic push plate is provided at the output end of the stepper motor. The stepper motor is used to drive the elastic push plate to move along the second direction.

3. The flash nonwoven fabric uniformity detection device according to claim 2, characterized in that: The elastic push plate includes a connecting plate, a guide shaft, a spring and a push plate body. The connecting plate is connected to the output shaft of the stepper motor, one end of the guide shaft is fixed to the conveyor, and the other end passes through the connecting plate and the push plate body in sequence. The guide shaft sleeve is provided with the spring, one end of the spring is against the connecting plate, and the other end is against the push plate body. The spring has a tendency to push the push plate body to move along the second direction, and a limiting groove is provided on one end face of the push plate body facing the flash-steamed non-woven fabric.

4. The flash nonwoven fabric uniformity detection device according to claim 1, characterized in that: It also includes a flattening component for flattening the flash-steamed nonwoven fabric, the flattening component is arranged between the centering component and the measuring module, the flattening component includes a first flattening unit and a second flattening unit symmetrically arranged on the conveyor, and the first flattening unit and the second flattening unit are arranged in a V shape.

5. The flash nonwoven fabric uniformity detection device according to claim 4, characterized in that: The first flattening unit and the second flattening unit have the same structure. The first flattening unit includes a mounting frame and a rotating roller. The mounting frame is installed on the conveyor, and the length direction of the mounting frame is set at an angle to the first direction. The rotating rollers are arranged in sequence at intervals in the length direction of the mounting frame, and the rotating rollers are in contact with the lower surface of the flash-steamed non-woven fabric.

6. The flash nonwoven fabric uniformity detection device according to claim 1, characterized in that: The preset angle α has a value range of 30°-90°.

7. The flash nonwoven fabric uniformity detection device according to claim 1, characterized in that: The length of the mounting plate is L, the width is M, the width of the flash-steamed nonwoven fabric is W, and L*sinα+M*conα=W is satisfied.

8. The flash nonwoven fabric uniformity detection device according to claim 1, characterized in that: The light source module includes a housing, a light source unit, and a shading component. The light source unit and the shading component are arranged in the housing. The light source module is used to emit light, and the shading component is used to adjust the irradiation range of the light source module to correspond to flash-steamed non-woven fabrics of different widths.

9. The flash nonwoven fabric uniformity detection device according to claim 8, characterized in that: The shading assembly includes an electric cylinder, a shading plate and a telescopic rod. The electric cylinder is arranged on the box body, and the output end of the electric cylinder is connected to the middle part of the telescopic rod. The two side walls of the box body arranged opposite to each other along the second direction are hinged to the upper end of the shading plate, and the lower ends of the two shading plates are hinged to one end of the telescopic rod.

10. A production line of a flash-steamed nonwoven fabric uniformity detection device, comprising the flash-steamed nonwoven fabric uniformity detection device according to any one of claims 1 to 9, characterized in that: It also includes a discharging device and a winding device, wherein the discharging device is used to produce flash-steamed non-woven fabrics, and the winding device is used to wind up the flash-steamed non-woven fabrics. The discharging end of the discharging device is connected to the feeding end of the conveyor, and the feeding end of the winding device is connected to the discharging end of the conveyor.

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