Device for detecting the suction cotton of a high ball top and method for detecting the same

Abstract

The present application belongs to the technical field of testing, and particularly relates to detection of the strength of fixed materials, and more particularly to a detection device for attraction cotton used for high-pitched ball tops and a detection method thereof; wherein one detection device for attraction cotton used for high-pitched ball tops comprises: an adjusting support which is slidingly arranged on a conveying belt; a transparent film which is arranged on one end of the adjusting support and extends upwardly at an angle; an adjusting plate which is hingedly connected to the lower end of the adjusting support; a plurality of air holes which are evenly distributed on the side wall of the adjusting support and are in communication with an air pump; wherein when the conveying belt drives the sponge block to move below the adjusting support, the sponge block pushes the adjusting plate to drive the adjusting support to move synchronously with the sponge block; the air holes blow air to the sponge block to clean the impurities on the surface of the sponge block; after the sponge block passes through the adjusting support from below, the conveying belt drives the sponge block to move reversely, and the transparent film is attached to the upper surface of the sponge block; and a laser detector emits a laser beam to the sponge block covered with the transparent film to detect whether the thickness of the sponge block is qualified.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of testing, and particularly relates to detection of the strength of fixed materials, and especially to a detection device for attraction cotton used for high-pitched ball tops and a detection method thereof. BACKGROUND

[0002] In the field of industrial manufacturing, sponge blocks are widely used in industries such as buffering, sealing, sound insulation and packaging as a kind of porous elastic material. The sponge blocks need to be cut into shape during the production process, and whether the thickness size meets the design requirements directly relates to the performance and quality of the products. Therefore, thickness detection is an indispensable key link in the production process of sponge blocks.

[0003] In the related art, laser thickness measurement is often used to detect the thickness of sponge blocks. Laser sensors are used to emit laser beams and receive reflected signals, and the thickness of the sponge blocks is measured by calculating the optical path difference. However, in actual application, laser thickness measurement faces significant technical problems:

[0004] There are a large number of irregular holes and pore structures on the surface of the sponge block, and scattering, diffraction or penetration phenomena occur when the laser beam is irradiated, resulting in large fluctuations in the intensity of the reflected signal and unstable measurement data. In addition, during production and transportation, the surface of the sponge block is prone to attach debris, dust or other impurities generated by cutting, and these residues further interfere with the reflection path of the laser, causing measurement errors to increase, seriously affecting the accuracy and reliability of the detection results.

[0005] To solve the above problems, the prior art attempts to improve the accuracy of the laser sensor or increase the filtering algorithm to optimize the measurement, but the effect is limited. For example, although a high-resolution laser can improve the theoretical accuracy, it cannot fundamentally solve the problem of signal noise caused by the porous surface; and although the software filtering algorithm can smooth the data fluctuations, it may mask the real deviation and reduce the detection sensitivity.

[0006] Therefore, how to solve the problem of increased error in laser thickness measurement for sponge block detection is a technical problem that needs to be solved in the field.

[0007] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background of the present application, and therefore, the above description is not considered to constitute information of the related art. SUMMARY

[0008] The present application provides at least a detection device for attraction cotton used for high-pitched ball tops and a detection method thereof.

[0009] In a first aspect, the present application provides a detection device for attraction cotton used for high-pitched ball tops, comprising:

[0010] a laser detector vertically arranged on the workbench;

[0011] A conveying belt is arranged below the laser detector for conveying the sponge block;

[0012] An adjusting support is slidingly arranged on the conveying belt and above the sponge block;

[0013] A transparent film is arranged on the adjusting support at one end and extends upwardly at the other end, and the middle part thereof is downwardly drooped;

[0014] An adjusting plate is hingedly arranged at the lower end of the adjusting support and is vertically downward in the initial state;

[0015] The side walls of the adjusting support are uniformly provided with a plurality of air holes which are in communication with an air pump;

[0016] When the conveying belt drives the sponge block to move below the adjusting support, the sponge block pushes the adjusting plate to drive the adjusting support to move synchronously with the sponge block;

[0017] The air holes blow air to the sponge block to clean the impurities on the surface of the sponge block;

[0018] After the sponge block passes through the adjusting support from below, the conveying belt drives the sponge block to move reversely, and the middle part of the transparent film is attached to the upper surface of the sponge block;

[0019] The laser detector emits a laser beam to the sponge block covered with the transparent film to detect whether the thickness of the sponge block is qualified.

[0020] In an optional embodiment, a limiting plate is arranged on each side of the moving direction of the conveying belt, and a sliding rail is arranged on the inner wall of the limiting plate, and the adjusting support is slidingly arranged on the sliding rail.

[0021] In an optional embodiment, an inclined angle is arranged between the sliding rail and the horizontal plane, and the angle of the inclined angle is 2-4°.

[0022] In an optional embodiment, the distance between the bottom wall of the adjusting plate and the conveying belt in the initial state is less than the height of the sponge block.

[0023] In an optional embodiment, a containing groove is arranged on the bottom wall of the adjusting support close to the adjusting plate, and an air pipe connecting the air hole and the air pump is arranged in the containing groove.

[0024] When the conveying belt drives the sponge block to move reversely, the sponge block pushes the adjusting plate to turn upwardly about the hinged point.

[0025] The adjusting plate turns upwardly to press and close the air pipe.

[0026] In an alternative embodiment, when the sponge block pushes the adjusting support to move horizontally to be directly below the laser detector, the middle sagging part of the transparent film is attached to the surface of the sponge block.

[0027] In an alternative embodiment, the limiting plate is provided with a support plate at the end away from the laser detector, the horizontal height of the support plate is greater than that of the adjusting support, and the end of the transparent film is arranged on the side wall of the support plate.

[0028] In an alternative embodiment, the bottom of the support plate is provided with a conveying port, and the height and width of the conveying port are greater than the thickness and width of the sponge block.

[0029] In an alternative embodiment, the air outlet end of the air hole is in the shape of a trumpet mouth to expand the airflow coverage area.

[0030] In an alternative embodiment, the axis of the air hole and the horizontal plane form an angle of 25°±5°.

[0031] In a second aspect, the embodiments of the present disclosure also provide a detection method of the detection device for the high-pitched ball top suction cotton, and the detection method comprises:

[0032] When the conveying belt drives the sponge block to move below the adjusting support, the sponge block pushes the adjusting plate to drive the adjusting support to move synchronously with the sponge block;

[0033] The air hole blows air to the sponge block to clean the impurities on the surface of the sponge block;

[0034] After the sponge block passes through the adjusting support from below, the conveying belt drives the sponge block to move reversely, and the transparent film is attached to the upper surface of the sponge block;

[0035] The laser detector emits a laser beam to the sponge block covered with the transparent film to detect whether the thickness of the sponge block is qualified.

[0036] The present application has the advantages that the present application provides a detection device and detection method for high-pitched ball top suction cotton, through the cooperation of the transparent film and the adjusting support, before detection, the surface of the sponge block is treated by blowing air through the air hole to remove surface impurities, reduces manual intervention, and improves work efficiency; then the surface of the sponge block is attached by the transparent film to isolate the scattering and diffraction of the laser by the porous structure of the sponge block, so that the laser reflection signal is stable; and then the sponge block and the transparent film are moved synchronously to the laser thickness measurement station for measurement, which greatly reduces the measurement error. This method effectively reduces laser scattering and impurity interference through physical isolation and surface flattening treatment, and significantly improves the accuracy and stability of thickness detection.

[0037] Other features and advantages of the present application will be set forth in the descriptions that follow, and in part will be apparent from the description or can be learned by practice of the application. The purposes and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0038] To make the above objectives, features and advantages of the present application more obvious and comprehensible, the preferred embodiments are specifically described in the following with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the related art, the drawings needed to be used in the specific embodiments or the related art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0040] Figure 1 A perspective view of the high-pitched ball top suction cotton detection device provided by the embodiment of the present disclosure is shown in the figure.

[0041] Figure 2 A perspective view of the adjusting support and transparent film provided by the embodiment of the present disclosure is shown in the figure.

[0042] Figure 3 A cross-sectional view of the adjusting support and transparent film provided by the embodiment of the present disclosure is shown in the figure.

[0043] Figure 4 A schematic diagram of the sponge block abutting the adjusting plate provided by the embodiment of the present disclosure is shown in the figure.

[0044] Figure 5 A schematic diagram of the sponge block separating from the adjusting plate provided by the embodiment of the present disclosure is shown in the figure.

[0045] In the figure:

[0046] 1, laser detector; 2, conveying belt; 21, limiting plate; 22, sliding rail; 23, supporting plate; 24, conveying port; 3, adjusting support; 30, air hole; 31, containing groove; 32, air pipe; 4, transparent film; 5, adjusting plate; 6, sponge block. DETAILED DESCRIPTION

[0047] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely in the following with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. DETAILED DESCRIPTION

[0048] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0049] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify an entire column of elements when following a column of elements. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0050] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0051] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0052] Research has shown that in the industrial manufacturing sector, sponge blocks, as a porous elastic material, are widely used in cushioning, sealing, sound insulation, and packaging. During the production process, sponge blocks need to be cut and shaped, and whether their thickness meets design requirements directly affects the product's performance and quality. Therefore, thickness testing is an indispensable and crucial step in the production of sponge blocks.

[0053] In the related art, the thickness of the sponge block is detected by a laser thickness measurement method. The laser sensor emits a laser beam and receives a reflected signal, and the thickness of the sponge block is measured by calculating the optical path difference. However, in the actual application process, the laser thickness measurement method faces significant technical problems:

[0054] There are a large number of irregular holes and pore structures on the surface of the sponge block. When the laser beam is irradiated, scattering, diffraction or penetration phenomena occur, resulting in large fluctuations in the intensity of the reflected signal and unstable measurement data. In addition, in the production and transportation process, the surface of the sponge block is easy to attach cutting debris, dust or other impurities. These residues further interfere with the reflection path of the laser, causing the measurement error to increase, seriously affecting the accuracy and reliability of the detection results.

[0055] To solve the above problems, the prior art attempts to optimize the measurement by improving the precision of the laser sensor or increasing the filtering algorithm, but the effect is limited. For example, although a high-resolution laser can improve the theoretical accuracy, it cannot fundamentally solve the problem of signal noise caused by the porous surface. While the software filtering algorithm can smooth the data fluctuations, it may mask the real deviation and reduce the detection sensitivity.

[0056] Therefore, how to solve the error increase of the laser thickness measurement method in the detection of the sponge block is a technical problem that needs to be solved in the field.

[0057] The defects of the above-mentioned solutions and their causes are the results of the inventors after careful research and practice. Therefore, the discovery process of the above-mentioned problems and the solutions proposed in this paper should be the contribution of the inventors to this disclosure.

[0058] It should be noted that similar reference numerals and letters refer to similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0059] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0060] As Figure 1As shown, at least one embodiment provides a high ball top suction cotton detection device, comprising: a laser detector 1, a conveyor belt 2, an adjusting support 3, a transparent film 4, an adjusting plate 5 and the like. The laser detector 1 is vertically arranged on the workbench; the conveyor belt 2 is arranged below the laser detector 1 and is used for conveying the sponge block 6; the adjusting support 3 is slidingly arranged on the conveyor belt 2 and is located above the sponge block 6; when the conveyor belt 2 drives the sponge block 6 to move horizontally, the sponge block 6 can push the adjusting support 3 to move horizontally relative to the conveyor belt 2. The transparent film 4 is arranged on the adjusting support 3 at one end, extends upwardly and obliquely at the other end, and the middle part falls downwardly; the adjusting plate 5 is hingedly connected to the lower end of the adjusting support 3 and is vertically downward in the initial state; the side walls of the adjusting support 3 are uniformly provided with a plurality of air holes 30, the air holes 30 are communicated with the air pump; the two sides of the conveyor belt 2 are provided with limiting plates 21, the inner wall of the limiting plate 21 is provided with a sliding rail 22, and the adjusting support 3 is slidingly arranged on the sliding rail 22. An inclined angle is arranged between the sliding rail 22 and the horizontal plane, and the angle of the inclined angle is 3°±1°. Further, the sliding rail 22 and the horizontal plane form an angle of 3°, which ensures smooth sliding of the adjusting support 3. Figure 4 In the formula, a represents the angle between the sliding rail 22 and the horizontal plane.

[0061] The working principle of the laser detector is as follows:

[0062] When the laser detector 1 (usually based on the principle of triangulation or echo analysis) works, a clear and stable reflection spot is needed. When the laser light is directly shot on the bare sponge block 6, serious diffuse reflection will occur. The laser energy will be scattered in all directions, and only a small part of the light energy will return to the receiver of the sensor along the original path. Due to the micro unevenness of the surface of the sponge block 6, the intensity and quality of the reflection spot returning to the receiver will have great random fluctuations every time the measurement is taken, which will cause the measured value to jump, the repeatability to be poor, and even stable readings cannot be obtained.

[0063] Based on the working principle of the laser detector, covering the transparent film 4 (such as PET film, PE preservative film and the like) on the sponge block 6 is equivalent to creating an “ideal measurement surface” for the sponge block 6 in an optical sense. The surface of the transparent film 4 is usually very smooth and flat, and when the laser light is incident on the film, mirror reflection (or directional reflection) will occur at the interface between the film and the air, and a stable and strong reflection signal will be obtained: the mirror reflection will make most of the laser energy return to the sensor receiver in a concentrated and directional manner. In this way, the spot signal obtained by the receiver becomes very strong, very clear and very stable in position. The key role of the transparent film 4 is “isolation”. It covers the porous and irregular structure of the sponge below, so that the laser sensor “cannot see” the sponge and can only “see” the smooth film surface, and thus the optical interference (scattering, emission) caused by the sponge itself is greatly reduced.

[0064] Reference is made to the drawingsFigure 4 , the sponge block 6 pushes the adjusting bracket 3 to move from right to left (F1 direction in Figure 4 , the sponge block 6 is separated from the adjusting bracket 3 (A state diagram in Figure 5 ), and at this time the adjusting bracket 3 is gradually pushed by the sponge block 6 to be close to the support plate 23, and the middle part of the transparent film 4 is covered and adhered on the sponge block 6 (B state diagram in Figure 5 ) under the action of its own gravity, so as to realize physical isolation and surface flattening treatment of the sponge block 6, effectively reduce laser scattering and impurity interference of the laser detector 1 when detecting the sponge block 6, and significantly improve the accuracy and stability of thickness detection.

[0065] Referring to the accompanying drawings Figure 2 , one end of the transparent film 4 is fixed to the adjusting bracket 3, the other end is fixed to the support plate 23, and the middle part is drooping. The adjusting plate 5 is hinged to the lower end of the adjusting bracket 3, and is initially perpendicular downward, the height of the bottom from the conveying belt 2 is less than the height of the sponge block 6, so as to ensure that the sponge block 6 can push it. The turning angle of the adjusting plate 5 is not greater than 90°, when the sponge block 6 moves from right to left, the sponge block 6 abuts against the adjusting plate 5 to push the adjusting bracket 3 to move horizontally synchronously; and when the sponge block 6 moves from left to right, the sponge block 6 pushes the adjusting plate 5 to turn upward around the hinge point, and the upward turning of the adjusting plate 5 can close the air pipe 32.

[0066] Referring to the accompanying drawings Figure 2 , the conveying belt 2 drives the sponge block 6 to move left (F1 direction in Figure 2 ). When the sponge block 6 enters below the adjusting bracket 3, the sponge block 6 pushes the adjusting plate 5 to drive the adjusting bracket 3 to move synchronously along the slide rail 22. At the same time, the air pump is started, the airflow is blown out from the air hole 30 through the air pipe 32, the airflow is diffused in the shape of a horn, and is blown to the surface of the sponge block 6 at an angle of 25°, so as to effectively remove the debris and dust. The accommodating groove 31 at the bottom of the adjusting bracket 3 protects the air pipe 32 from being damaged. The bottom wall of the adjusting bracket 3 is provided with an accommodating groove 31 near the adjusting plate 5, and the air pipe 32 connecting the air hole 30 and the air pump is arranged in the accommodating groove 31; wherein, when the sponge block 6 moves reversely driven by the conveying belt 2, the sponge block 6 pushes the adjusting plate 5 to turn upward around the hinge point; the upward turning of the adjusting plate 5 extrudes to close the air pipe 32.

[0067] Referring to the accompanying drawings Figure 2 , one end of the limiting plate 21 away from the laser detector 1 is provided with a support plate 23, the horizontal height of the support plate 23 is greater than that of the adjusting bracket 3, and the end of the transparent film 4 is arranged on the side wall of the support plate 23. The bottom of the support plate 23 is provided with a conveying port 24, and the height and width of the conveying port 24 are greater than the thickness and width of the sponge block 6.

[0068] Referring to the accompanying drawingsFigure 3 The air outlet end of the air hole 30 is in the shape of a trumpet mouth to expand the air flow coverage area. The axis of the air hole 30 and the horizontal plane form an angle of 25°±5°, and further, the axis of the air hole 30 and the horizontal plane form an angle of 30° to optimize the air flow direction. The air flow blown by the air hole 30 can cover a larger area of the surface of the sponge block 6.

[0069] At least one embodiment provides a detection method of the high-pitched ball top suction cotton detection device, the detection method comprising:

[0070] When the conveyor belt 2 drives the sponge block 6 to move below the adjusting support 3, the sponge block 6 pushes the adjusting plate 5 to drive the adjusting support 3 to move synchronously with the sponge block 6;

[0071] The air hole 30 blows air to the sponge block 6 to clean the impurities on the surface of the sponge block 6;

[0072] After the sponge block 6 passes through the adjusting support 3 from below, the conveyor belt 2 drives the sponge block 6 to move reversely, and the transparent film 4 is attached to the upper surface of the sponge block 6;

[0073] The laser detector 1 emits a laser beam to the sponge block 6 covered with the transparent film 4 to detect whether the thickness of the sponge block 6 is qualified.

[0074] The working principle of the high-pitched ball top suction cotton detection device is as follows:

[0075] As shown in FIG. 1, the conveyor belt 2 drives the sponge block 6 to move to the left (direction of the middle A state F1). Figure 4 When the sponge block 6 enters below the adjusting support 3, it pushes the adjusting plate 5 (middle B state) to drive the adjusting support 3 to move synchronously along the slide rail 22. At the same time, the air pump is started, and the air flow is blown out from the air hole 30 through the air pipe 32 to effectively remove the debris and dust. Figure 4 Figure 4 As shown in FIG. 2, the sponge block 6 continues to move, and as the adjusting support 3 moves along the conveyor belt 2 from right to left, the adjusting support 3 drives the adjusting plate 5 to gradually move away from the sponge block 6 (middle A state).

[0076] After the sponge block 6 completely passes through the adjusting support 3, the conveyor belt 2 reversely drives the sponge block 6 to move to the left (direction of movement of the middle B state F3). In the middle A state, F2 indicates that the adjusting support 3 moves away from the sponge block 6. Figure 5 Figure 5 In the middle B state, the direction of movement of F3 indicates that the sponge block 6 moves reversely. Figure 5 Figure 5 Figure 5

[0077] ​​​​​The sagging part of the transparent film 4 is attached to the upper surface of the sponge block 6. The transparent film 4 is made of a flexible transparent material and does not affect the laser penetration. When the adjusting support 3 is pushed to be directly below the laser detector 1, the laser detector 1 emits a laser beam, and the thickness of the sponge block 6 covered by the film is measured, and the data is stable and accurate. The conveying port 24 of the support plate 23 ensures the smooth return of the sponge block 6.

[0078] When the sponge block 6 moves reversely, the push adjusting plate 5 is flipped upward around the hinge point. The adjusting plate 5 presses the air pipe 32 in the containing groove 31, temporarily closes the air flow, and avoids the air flow from interfering with the detection process. After the detection is completed, the conveying belt 2 stops, the sponge block 6 is removed, and the device is reset.

[0079] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0080] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 application. In addition, terms such as "first", "second" and other numerical terms are used herein and do not imply order or sequence unless expressly indicated herein. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0081] Based on the above ideal embodiments according to the present application, the above description, relevant personnel can make various changes and modifications without deviating from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A device for detecting suction cotton for a tweeter dome tweeter, characterized in that, include: A laser detector (1) is vertically mounted on a workbench; A conveyor belt (2) is positioned below the laser detector (1) and is used to transport sponge blocks (6). Adjusting bracket (3) is slidably mounted on conveyor belt (2) and located above sponge block (6); A transparent film (4) has one end set on an adjustment bracket (3), the other end extending upward at an angle, and the middle part hanging downward; Adjustment plate (5), which is hinged to the lower end of the adjustment bracket (3), is vertically downward in the initial state; The side wall of the adjusting bracket (3) is evenly distributed with a number of air holes (30), and the air holes (30) are connected to the air pump; When the conveyor belt (2) drives the sponge block (6) to move below the adjusting bracket (3), the sponge block (6) pushes the adjusting plate (5) to drive the adjusting bracket (3) to move synchronously with the sponge block (6); Air is blown into the sponge block (6) through the air hole (30) to clean the impurities on the surface of the sponge block (6); After the sponge block (6) passes through the adjusting bracket (3) from below, the conveyor belt (2) drives the sponge block (6) to move in the opposite direction, and the transparent film (4) is attached to the upper surface of the sponge block (6) in the middle. The laser detector (1) emits a laser beam to the sponge block (6) covered with a transparent film (4) to detect whether the thickness of the sponge block (6) is qualified.

2. The suction cotton detection device for tweeter dome as described in claim 1, characterized in that, A limiting plate (21) is provided on each side of the conveyor belt (2) in the direction of movement. A slide rail (22) is provided on the inner wall of the limiting plate (21). The adjusting bracket (3) is slidably mounted on the slide rail (22).

3. The suction cotton detection device for tweeter dome tweeters as described in claim 2, characterized in that, The slide rail (22) has an inclined angle with the horizontal plane, and the angle of the inclined angle is 2°-4°.

4. The suction cotton detection device for tweeter dome as described in claim 1, characterized in that, In the initial state, the distance between the bottom wall of the adjusting plate (5) and the surface of the conveyor belt (2) is less than the height of the sponge block (6).

5. The suction cotton detection device for tweeter dome tweeters as described in claim 4, characterized in that, The bottom wall of the adjusting bracket (3) near the adjusting plate (5) has a receiving groove (31), and the receiving groove (31) is provided with an air pipe connecting the air hole (30) and the air pump. When the conveyor belt (2) drives the sponge block (6) to move in the opposite direction, the sponge block (6) pushes the adjusting plate (5) to flip upward with the hinge point as the axis. The adjusting plate (5) is flipped upwards and squeezed to close the airway.

6. The suction cotton detection device for tweeter dome tweeters as described in claim 1, characterized in that, When the sponge block (6) pushes the adjustment bracket (3) to move horizontally to directly below the laser detector (1), the middle part of the transparent film (4) hangs down and adheres to the surface of the sponge block (6).

7. The suction cotton detection device for tweeter dome as described in claim 2, characterized in that, A support plate (23) is provided at one end of the limiting plate (21) away from the laser detector (1). The horizontal height of the support plate (23) is greater than that of the adjusting bracket (3), and the end of the transparent film (4) is provided on the side wall of the support plate (23).

8. The suction cotton detection device for tweeter dome tweeters as described in claim 7, characterized in that, The support plate (23) has a conveying port (24) at its bottom. The height and width of the conveying port (24) are both greater than the thickness and width of the sponge block (6).

9. The suction cotton detection device for tweeter dome as described in claim 1, characterized in that, The outlet end of the air hole (30) is funnel-shaped to expand the airflow coverage area.

10. The suction cotton detection device for tweeter dome as described in claim 9, characterized in that, The axis of the pore (30) is at 25°±5° to the horizontal plane.

11. A detection method for a high-frequency dome suction cotton detection device, characterized in that, The detection method using the suction cotton detection device for tweeter dome as described in any one of claims 1-10 includes: When the conveyor belt (2) drives the sponge block (6) to move below the adjusting bracket (3), the sponge block (6) pushes the adjusting plate (5) so that the adjusting bracket (3) moves synchronously with the sponge block (6); Air is blown into the sponge block (6) through the air hole (30) to clean the impurities on the surface of the sponge block (6); After the sponge block (6) passes through the adjusting bracket (3) from below, the conveyor belt (2) drives the sponge block (6) to move in the opposite direction, and the transparent film (4) adheres to the upper surface of the sponge block (6); the laser detector (1) emits a laser beam to the sponge block (6) covered with the transparent film (4) to detect whether the thickness of the sponge block (6) is qualified.

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