An online haze detection device for BOPE film

Abstract

An online haze detection device for BOPE films includes: an upper sliding rod and a lower sliding rod arranged parallel to each other in the horizontal direction; a light emitter mounted on the upper sliding rod and movable along its axial direction; and a light receiver mounted on the lower sliding rod and movable along its axial direction. The emitting end of the light emitter and the receiving end of the light receiver are kept coaxially opposite each other, and the optical path is kept aligned during movement by a mechanical coaxial structure. A standard filter with adjustable haze is provided between the upper and lower sliding rods for calibrating the light emitter and the light receiver. This invention utilizes the parallel upper and lower sliding rods and the coaxially opposite light emitter and light receiver to construct a coaxial moving detection optical path, realizing full-width continuous scanning of moving films. The light emitter and light receiver are calibrated by the standard filter, and the detection standard can be changed by replacing the standard filter to adapt to the production and testing needs of different types of BOPE films.

Description

Technical Field

[0001] This utility model relates to the technical field of BOPE film testing equipment, and in particular to an online haze detection device for BOPE film. Background Technology

[0002] BOPE film, also known as biaxially oriented polyethylene film, boasts advantages such as high transparency, high strength, good low-temperature impact resistance, and heat-sealing properties. Haze is an important indicator of a film's clarity and transparency. Lower haze indicates higher transparency, which is particularly important in the packaging industry. Furthermore, haze is closely related to the film's material properties, additives, and processing technology; therefore, detecting haze can indirectly reveal the film's production quality.

[0003] However, traditional haze meters can only perform offline testing and cannot achieve real-time monitoring during the BOPE film production process. Therefore, to address the shortcomings of existing technologies, it is necessary to design an online haze detection device for BOPE films to solve the above problems.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0005] To overcome the shortcomings of the prior art, the present invention aims to disclose an online haze detection device for BOPE film, which realizes continuous, non-contact measurement of haze during the production process and improves the efficiency of quality monitoring.

[0006] This utility model discloses an online haze detection device for BOPE film, comprising:

[0007] The upper and lower sliding rods are arranged parallel to each other in the horizontal direction;

[0008] A light emitter mounted on an upper slide bar and movable along its axis;

[0009] A light receiver mounted on a sliding bar and movable along its axis;

[0010] The emitting end of the light emitter and the receiving end of the light receiver are kept coaxially opposite each other, and the optical path is kept aligned by a mechanical coaxial structure during movement;

[0011] An adjustable haze standard filter is located between the upper and lower sliders, used for calibrating the light emitter and receiver. It should be noted that the adjustable haze value of this standard filter is achieved by replacing it with a standard filter of different haze values.

[0012] Preferred technical solution: The light emitter includes a light source module, the emitting end of the light source module is connected to an optical collimation module, and the light receiver includes a photoelectric sensor. The emitting end of the optical collimation module and the receiving end of the photoelectric sensor always remain coaxial and relative to each other during the movement.

[0013] Preferred technical solution: The photoelectric sensor is connected to a signal output interface for transmitting detection data to the outside.

[0014] Preferred technical solution: A wireless transmission module is connected to the signal output interface to realize remote data transmission.

[0015] Preferred technical solution: The photoelectric sensor is connected to a detector heat sink.

[0016] Preferred technical solution: The distance between the upper slide bar and the lower slide bar is adjustable to accommodate films of different thicknesses.

[0017] A preferred technical solution includes a dustproof housing covering the detection area, wherein the dustproof housing has a strip opening through which the BOPE film passes.

[0018] Preferred technical solution: The dustproof shell is made of ABS plastic.

[0019] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0020] This invention relates to an online haze detection device for BOPE films. It utilizes parallel upper and lower sliding rods, along with a coaxially opposed light emitter and receiver, to construct a coaxial moving detection optical path, enabling continuous full-width scanning of moving films. The light emitter and receiver are calibrated using standard filters, and the detection standard can be changed by replacing the standard filters to adapt to the production and testing needs of different BOPE film models. The distance between the upper and lower sliding rods is adjustable, improving compatibility with different film production lines. A dustproof housing reduces the impact of environmental dust on the optical path. A heat sink ensures stable long-term operation of the photoelectric sensor. A wireless transmission module supports remote data monitoring and quality analysis. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal structure of an online haze detection device for BOPE film according to this utility model;

[0023] Figure 2 This is a schematic diagram of the external structure of an online haze detection device for BOPE film according to this utility model;

[0024] Figure 3 This is a longitudinal sectional view of an online haze detection device for BOPE film according to this utility model.

[0025] In the attached diagrams above, 100 represents the BOPE film; 1 represents the upper slide bar; 2 represents the lower slide bar; 3 represents the light emitter; 4 represents the light receiver; 5 represents the standard filter; 6 represents the dustproof housing; and 61 represents the strip opening. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses an online haze detection device for BOPE films, including an upper sliding rod 1, a lower sliding rod 2, a light emitter 3, a light receiver 4, and a standard filter 5. The main components of this utility model will be described in detail below:

[0033] The upper sliding rod 1 and the lower sliding rod 2 are arranged horizontally and parallel to each other on the upper and lower sides of the BOPE film 100;

[0034] The light emitter 3 is mounted on the upper slide bar 1 and can move along its axis. The light receiver 4 is mounted on the lower slide bar 2 and can move along its axis. The central axes of the emitting end of the light emitter 3 and the receiving end of the light receiver 4 are always coincident, ensuring that the light penetrates the BOPE film 100 perpendicularly. A standard filter 5 with adjustable haze is provided between the upper slide bar 1 and the lower slide bar 2. The light emitted by the light emitter 3 passes through the standard filter 5 and reaches the light receiver 4. The light transmittance corresponding to the haze value of the standard filter 5 is obtained. The BOPE film 100 is tested online using this standard. The haze value fluctuation of the BOPE film 100 can be monitored in real time to see if it exceeds the allowable range. When the model and haze value of the BOPE film 100 to be tested are changed, only the corresponding standard filter 5 needs to be replaced to recalibrate the light emitter 3 and the light receiver 4.

[0035] Specifically, the light emitter 3 includes a light source module, the emitting end of which is connected to an optical collimation module, and the light receiver 4 includes a photoelectric sensor. The emitting end of the optical collimation module and the receiving end of the photoelectric sensor remain coaxially opposite each other during movement. The optical collimation module is used to adjust the direction of the light beam emitted by the light source module to make it a parallel beam, thereby improving the accuracy and stability of the optical path and thus improving the accuracy of haze detection.

[0036] In some embodiments, the photoelectric sensor is connected to a signal output interface for transmitting detection data, and a wireless transmission module is connected to the signal output interface. This allows the data to be transmitted to a computer device for convenient data storage and organization.

[0037] In some embodiments, the photoelectric sensor is connected to a detector heat sink to avoid detection distortion caused by device overheating, and also to prevent the quality of the BOPE film from being affected by excessively high device temperature.

[0038] In some embodiments, the spacing between the upper slide bar 1 and the lower slide bar 2 is adjustable to accommodate different BOPE film production lines.

[0039] In some embodiments, the BOPE film online haze detection device further includes a dustproof housing 6 covering the detection area to prevent dust from entering and affecting the detection optical path; the dustproof housing 6 is provided with a strip-shaped opening 61 for the BOPE film to pass through, and the dustproof housing 6 is made of ABS plastic.

[0040] The method of use and principle of this utility model are as follows:

[0041] Calibration: Adjust the distance between the upper slide bar 1 and the lower slide bar 2 according to the BOPE film 100 production line model, and install the standard filter 5 with the corresponding haze value between the upper slide bar 1 and the lower slide bar 2; the light emitter 3 and the receiver 4 move synchronously to the upper and lower sides of the standard filter 5 along the upper slide bar 1 and the lower slide bar 2. The light emitter 3 emits a parallel light beam, which is attenuated by the standard filter 5 and then received by the light receiver 4; establish a correspondence between the measured light transmittance value and the calibrated haze value of the filter.

[0042] Detection: The BOPE film 100 is passed through the detection area via the strip opening 61; the light emitter 3 and receiver 4 move synchronously along the upper slide bar 1 and the lower slide bar 2 to scan and detect the BOPE film 100 laterally; the light source module emits infrared or visible light, which is adjusted by the optical collimation module and then penetrates the BOPE film 100; the photoelectric sensor receives the transmitted light and converts it into an electrical signal, which is then uploaded to the control center or computer through the signal output interface and the wireless module.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An online haze detection device for BOPE film, characterized in that, include: The upper sliding rod (1) and the lower sliding rod (2) are arranged parallel to each other in the horizontal direction; A light emitter (3) is mounted on the upper slide bar (1) and can move along its axial direction. A light receiver (4) is mounted on the slide bar (2) and can move along its axial direction. The emitting end of the light transmitter (3) and the receiving end of the light receiver (4) are kept coaxially opposite each other. A standard filter (5) with adjustable haze value is provided between the upper slide bar (1) and the lower slide bar (2) for calibrating the light emitter (3) and the light receiver (4).

2. The online haze detection device for BOPE film according to claim 1, characterized in that: The light emitter (3) includes a light source module, the emitting end of which is connected to an optical collimation module. The light receiver (4) includes a photoelectric sensor. The emitting end of the optical collimation module and the receiving end of the photoelectric sensor remain coaxially opposite each other during movement.

3. The online haze detection device for BOPE film according to claim 2, characterized in that: The photoelectric sensor is connected to a signal output interface for transmitting detection data to the outside.

4. The online haze detection device for BOPE film according to claim 3, characterized in that: A wireless transmission module is connected to the signal output interface.

5. The online haze detection device for BOPE film according to claim 2, characterized in that: The photoelectric sensor is connected to a heat sink.

6. The online haze detection device for BOPE film according to claim 1, characterized in that: The distance between the upper slide bar (1) and the lower slide bar (2) is adjustable.

7. The online haze detection device for BOPE film according to claim 1, characterized in that: It also includes a dustproof housing that covers the detection area, the dustproof housing having a strip opening through which the BOPE film passes.

8. The online haze detection device for BOPE film according to claim 7, characterized in that: The dustproof housing is made of ABS plastic.

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