Classified recycling equipment and method for beverage bottles

Abstract

The classified recycling equipment comprises a classification box with a plurality of classification spaces, a box door assembly is arranged at an inlet of each classification space, and an identification area, a light source assembly, a calculation module and an identification assembly are arranged at a delivery opening of each classification box; the light source assembly is used for irradiating to-be-classified beverage bottles, and a photoelectric sensor used for receiving light intensity penetrating through the to-be-classified beverage bottles is arranged below the to-be-classified beverage bottles in the recognition area; the calculation module obtains the light intensity received by the photoelectric sensor, calculates the light transmittance of the to-be-classified beverage bottles, compares classification set threshold values, controls the box door assembly to act, and classifies and recycles the to-be-classified beverage bottles. The beverage bottles are distinguished according to the light transmittance of different types of beverage bottles, so that the labor intensity of workers is reduced, and the recycling value of the beverage bottles is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage classification, and in particular to a classification and recycling device and method for beverage bottles. Background Art

[0002] With the development of society, the classification and recycling of recyclable waste has become more and more popular, and the classification, recycling and reuse of beverage bottles has become more and more important. Due to the diverse materials of beverage bottles and different recycling values, beverage bottles are currently divided into three categories according to their utilization methods: transparent and colorless, colored and translucent, and completely opaque (such as cans, cartons, etc.). The value and performance of the three types are quite different, which directly affects the later processing technology and the value of reuse. Colorless beverage bottles can be used to make colored plastics later, which are of higher value; colored and translucent beverage bottles can be used to make black plastic granules or as mixed materials for other purposes after processing, which are of relatively low value. Opaque types such as cans are generally subjected to metal smelting and remanufacturing. However, the existing classification and recycling methods are insufficient, resulting in a large number of recyclable resources not being effectively utilized.

[0003] In the prior art, garbage classification mainly adopts manual sorting and machine sorting. Manual sorting relies on workers' visual recognition and manual operation of beverage bottles. In order to maximize the reuse value of beverage bottles, beverage bottles must be sorted according to different types in the early stage of processing, which greatly increases labor costs. Long-term repetitive labor can easily lead to worker fatigue, which in turn affects the accuracy of sorting, and manual sorting is inefficient. Mechanical automated sorting uses conveyor belts, optical sensors and other equipment to achieve rapid sorting. Existing automated equipment is less efficient in processing complex or irregularly shaped beverage bottles, and is difficult to adapt to beverage bottles of different sizes and materials. In addition, the automated equipment is expensive and the classification accuracy is insufficient. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a classification and recycling device and method for beverage bottles, which can reduce the labor intensity of sorting, efficiently and accurately classify and recycle beverage bottles, and improve the value of recycling and reuse of beverage bottles.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a classification and recycling device for beverage bottles, comprising a classification box with multiple classification spaces, a box door component is arranged at the entrance of the classification space, and an identification area, a light source component, a calculation module and an identification component are arranged at the delivery port of the classification box;

[0006] The light source assembly is used to illuminate the beverage bottles to be classified, and the identification area is provided with a photoelectric sensor below the beverage bottles to be classified for receiving the light intensity passing through the beverage bottles to be classified;

[0007] The calculation module obtains the light intensity received by the photoelectric sensor to calculate the light transmittance of the beverage bottles to be classified, compares it with the classification setting threshold, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified.

[0008] As a further improvement of the present invention: after the identification area detects the beverage bottles to be classified, the light source assembly is controlled to emit a light source of a set intensity, the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified, performs transmittance analysis on the beverage bottles to be classified, and classifies the beverage bottles according to the transmittance of the beverage bottles to be classified. The classification types include transparent beverage bottles, colored translucent beverage bottles, and completely opaque beverage bottles according to the materials of the beverage bottles.

[0009] As a further improvement of the present invention: the classification types are respectively set with classification thresholds according to the materials of the beverage bottles, including: transparent beverage bottles are set with a transmittance of 70%-95%, colored translucent beverage bottles are set with a transmittance of 20%-70%, and completely opaque beverage bottles are set with a transmittance of 0%-20%.

[0010] As a further improvement of the present invention: when the photoelectric sensor collects the light intensity passing through the beverage bottle to be classified, a multi-point collection method is adopted, and the three points with the highest light source intensity are selected for average calculation to obtain the transmitted light intensity I t , transmitted light intensity I t The ratio of the light intensity to the preset light intensity I0 is the transmittance T, T = I t / I0×100%; transmitted light intensity I t It is the intensity of the filtered direct light spot through the beverage bottle, and the preset light intensity I0 is the intensity of the light source with a set intensity emitted by the preset light source component.

[0011] As a further improvement of the present invention: the classification and recycling equipment is also provided with a visual component, which obtains the image of the beverage bottle to be classified, and analyzes the brightness of the image through an image processing algorithm to obtain the transmittance of the beverage bottle to be classified, compares the classification setting threshold, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified.

[0012] As a further improvement of the present invention: the visual component captures images of beverage bottles to be classified through a high-resolution camera, the computing module reads the images and converts them into grayscale images, constructs coordinates in the grayscale images, calculates the average brightness value of the images based on the grayscale images, and compares the average brightness value with a preset image brightness value to obtain the transmittance.

[0013] As a further improvement of the present invention: the calculation of the average brightness value of the image according to the grayscale image includes: constructing coordinates in the grayscale image, and calculating the average brightness value of the image according to the grayscale image, and the calculation formula of the average brightness value is:

[0014]

[0015] Among them, I(i,j) is the brightness value of the image at coordinate (i,j), and N×M is the size of the image.

[0016] As a further improvement of the present invention: the use of the average brightness value to compare with the preset image brightness value includes: setting a completely transparent reference image, which is the moment before the beverage bottle to be classified is put in, and the brightness value of the image without object influence taken by the visual component under the light source of set intensity emitted by the light source component is set to the preset image brightness value B0, and the ratio of the average brightness value B1 to the preset image brightness value B1 is the transmittance T, T=B1 / B1×100%.

[0017] As a further improvement of the present invention: the box door assembly includes a bottom plate, the bottom plate is arranged at the input port, the bottom plate is arranged as an identification area, the bottom plate is movably assembled on the classification box, the classification space is arranged in a stacked manner, and the lower part of the bottom plate is arranged as a drop channel;

[0018] The box door assembly also includes a door body, a motor and a connecting rope. One side of the door body can be movably mounted on the lower side of the entrance of the classification space, and the motor is mounted on the upper side of the classification space. One end of the connecting rope is connected to the motor, and the other end of the connecting rope is connected to the upper side of the door body. The motor can control the opening and closing of the door body in the falling channel.

[0019] A method for sorting and recycling beverage bottles, comprising:

[0020] The light source assembly is controlled to emit a light source of set intensity, and the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified;

[0021] The calculation module obtains the light intensity received by the photoelectric sensor to calculate the transmittance of the beverage bottles to be classified, compares the classification setting threshold, controls the movement of the box door assembly, and classifies and recycles the beverage bottles to be classified.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention uses a light source component to illuminate the beverage bottles to be tested, and a photoelectric sensor located below the beverage bottles to be classified receives the light intensity passing through the beverage bottles to be classified. The light intensity received by the photoelectric sensor is obtained by a calculation module to calculate the transmittance of the beverage bottles to be classified, and the classification setting threshold is compared to control the action of the box door component. The beverage bottles to be classified are classified and recycled, and the beverage bottles are distinguished by the transmittance of different types of beverage bottles, so as to reduce the labor intensity of employees and improve the value of beverage bottle recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic perspective view of the structure of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the cooperation between the door assembly and the classification space of the present invention.

[0026] Figure numerals: 1. classification box, 2. classification space, 3. input port, 4. slide, 5. bottom plate, 6. drop channel, 7. light-emitting board, 8. door body, 9. motor, 10. connecting rope. DETAILED DESCRIPTION

[0027] In order to enable a clear and complete understanding of the technical solution, the present invention is further described in conjunction with the embodiments and drawings. Obviously, the described embodiments are only some embodiments of the present invention, and all other embodiments obtained by technicians in the relevant field without making creative work are within the scope of protection of the present invention.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] An embodiment of the present invention provides a classification and recycling device for beverage bottles, comprising a classification box 1 having a plurality of classification spaces 2, a box door assembly being arranged at the entrance of the classification space 2, and an identification area, a light source assembly, a computing module and an identification assembly being arranged at the delivery port of the classification box 1;

[0032] The light source assembly is used to illuminate the beverage bottles to be classified, and the identification area is provided with a photoelectric sensor below the beverage bottles to be classified for receiving the light intensity passing through the beverage bottles to be classified;

[0033] The calculation module obtains the light intensity received by the photoelectric sensor to calculate the light transmittance of the beverage bottles to be classified, compares it with the classification setting threshold, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified.

[0034] In order to ensure that beverage bottles can be better classified while saving space, the classification box 1 is designed as a cabinet-type box body, which is arranged in a vertical direction. The classification space 2 is stacked from top to bottom in the classification box 1, and the box door assembly is used. After the beverage bottles are identified and classified at the front end, the box door assembly corresponding to the classification type is opened to allow the beverage bottles to enter the corresponding classification space 2 to complete the classification. No additional auxiliary equipment such as conveyor belts is used to transport beverage bottles, thereby realizing the classified storage and space compression of beverage bottles and improving space utilization.

[0035] In the present application, in order to better identify beverage bottles and avoid interference from external factors, the classification box 1 has only a sufficiently small input port 3. At the same time, the input port 3 can meet the input of most beverage bottles on the market. A movable shielding door is arranged in the input port 3, and the shielding door can close the input port 3. The light from the outside world cannot enter the classification box 1, so that the classification box 1 is in a completely dark state. When identifying and classifying, only the light source component is relied on to illuminate the beverage bottles to be classified, and there are no other influencing factors; a slide 4 is also arranged in the classification box 1. After the beverage bottles are put in, they slide along the slide 4 into the identification area in the classification box 1. Specifically, a bottom plate 5 is arranged in the box door assembly, and the bottom plate 5 is arranged at the input port 3 Below the slide 4, the upper end surface of the bottom plate 5 has a concave design, and the upper end surface of the bottom plate 5 is set as an identification area. The concave design of the bottom plate 5 can prevent the bottle from falling outside the identification area, and can allow the beverage bottle to fall into the identification area better, so as to better complete the identification and classification of the beverage bottle and improve the classification efficiency of the beverage bottle. At the same time, the bottom plate 5 is designed to be movably assembled on the classification box 1, and the bottom of the bottom plate 5 is set as a drop channel 6. After the identification and classification process of the beverage bottle is completed, the bottom plate 5 can be opened to allow the beverage bottle to fall along the drop channel 6. In conjunction with the use of the box door assembly, after the beverage bottle is identified and classified at the front end, the box door assembly corresponding to the classification type is opened to allow the beverage bottle to enter the corresponding classification space 2 to complete the classification.

[0036] Furthermore, the box door assembly also includes a door body 8, a motor 9 and a connecting rope 10. One side of the door body 8 can be movably mounted on the lower side of the entrance of the classification space 2, and the motor 9 is mounted on the upper side of the classification space 2. One end of the connecting rope 10 is connected to the motor 9, and the other end of the connecting rope 10 is connected to the upper side of the door body 8. The motor 9 can control the opening and closing of the door body 8 in the drop channel 6.

[0037] In this design method, after the process of identifying and classifying the beverage bottles is completed, the bottom plate 5 is opened to allow the beverage bottles to fall along the falling channel 6, so that after the beverage bottles are identified and classified at the front end, the motor 9 cooperates with the connecting rope 10 to open the door 8 corresponding to the classification type, allowing the beverage bottles to enter the corresponding classification space 2 to complete the classification.

[0038] In another embodiment, an abutment spring is provided at the connection between the door body 8 and the entrance of the classification space 2, so that the initial state of the door body 8 is an open state, and the door body 8 can be closed by using the motor 9 and the connecting rope 10. In implementation, after the process of identifying and classifying the beverage bottles is completed, the bottom plate 5 is opened to allow the beverage bottles to fall along the falling channel 6, so that after the identification and classification of the beverage bottles are completed at the front end, the motor 9 cooperates with the connecting rope 10 to close the door body 8 of other classification types, allowing the beverage bottles to enter the corresponding classification space 2 to complete the classification.

[0039] In some optional embodiments of the present application, when a user delivers a beverage bottle, the beverage bottle falls from the input port 3 along the slide 4 to the identification area. An infrared detection probe is provided on the upper light source assembly. When the bottle is detected, the indicator light turns red (indicating that delivery is prohibited at this time) to prevent the user from putting in multiple bottles at a time and prepare for the classification and storage of garbage bottles.

[0040] Furthermore, after the identification area detects the beverage bottles to be classified, the light source assembly is controlled to emit a light source of a set intensity, the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified, performs transmittance analysis on the beverage bottles to be classified, and classifies the beverage bottles according to the transmittance of the beverage bottles to be classified. The classification types include transparent beverage bottles, colored translucent beverage bottles, and completely opaque beverage bottles according to the materials of the beverage bottles.

[0041] In this embodiment, the light source assembly includes a light-emitting plate 7, which can emit light of a certain intensity to the beverage bottles to be classified, and perform light transmittance analysis on the entire bottle body. Since colorless beverage bottles can be used to make colored plastics later, they are of higher value; colored translucent beverage bottles can be used to make black plastic granules or as mixed materials for other purposes after processing, and their value is relatively low. Opaque types such as cans are generally subjected to metal smelting and remanufacturing, etc. According to the light transmittance of the beverage bottles, the bottles to be classified are divided into three categories, including transparent, colored translucent, and completely opaque (such as paper boxes, cans, etc.).

[0042] Furthermore, the classification types set classification thresholds according to the materials of the beverage bottles, including: setting the transmittance of transparent beverage bottles to 70%-95%, setting the transmittance of colored translucent beverage bottles to 20%-70%, and setting the transmittance of completely opaque beverage bottles to 0%-20%.

[0043] Furthermore, when the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified, a multi-point collection method is adopted, and the three points with the highest light source intensity are selected for average calculation to obtain the transmitted light intensity I t , transmitted light intensity I t The ratio of the light intensity to the preset light intensity I0 is the transmittance T, T = I t / I0×100%; the transmitted light intensity It is the intensity of the filtered direct light spot through the beverage bottle, and the preset light intensity I0 is the intensity of the light source emitted by the preset light source component.

[0044] In this embodiment, due to the presence of labels in beverage bottles, when classifying beverage bottles, in order to avoid the influence of beverage bottle labels on the accuracy of judgment and identification, the photoelectric sensor adopts a multi-point acquisition method. Among the light passing through the beverage bottles, three points with the highest light source intensity are selected for average calculation. At the same time, when performing calculation and judgment, the direct light point transmittance is first filtered to 100%. Under normal circumstances, the transmittance of transparent beverage bottles is: 70%-95%; the transmittance of colored translucent beverage bottles is 20%-70%; the transmittance of completely opaque beverage bottles is 0%-20%; the different transmittances of different types of beverage bottles are used to distinguish beverage bottles. After completing the transmittance analysis of the beverage bottles, the main control system makes instructions according to the transmittance to open the bottom plate 5 and the corresponding door body 8, so that the beverage bottles fall into the falling channel 6 below.

[0045] Furthermore, the classification and recycling equipment is also provided with a visual component, which obtains the image of the beverage bottle to be classified, and analyzes the brightness of the image through an image processing algorithm to obtain the light transmittance of the beverage bottle to be classified, compares the classification setting threshold, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified. In this embodiment, the visual component is used in conjunction with the light source component. When the light source component emits a light source of a set intensity, the visual component is used to shoot the beverage bottle to be classified and the image processing algorithm obtains the light transmittance of the beverage bottle to be classified.

[0046] Furthermore, the visual component uses a high-resolution camera to capture images of beverage bottles to be classified, and the computing module reads the images and converts them into grayscale images, constructs coordinates in the grayscale images, calculates the average brightness value of the images based on the grayscale images, and compares the average brightness value with the preset image brightness value to obtain the transmittance. In summary, in this embodiment, the machine vision technology uses a high-resolution camera to capture images of beverage bottles, and uses an image processing algorithm to read the images and convert them into grayscale images, calculates the average brightness value of the images, and thus calculates the transmittance.

[0047] Calculating the average brightness value of the image according to the grayscale image includes: constructing coordinates in the grayscale image, and calculating the average brightness value of the image according to the grayscale image. The calculation formula of the average brightness value is:

[0048]

[0049] Among them, i(i,j) is the brightness value of the image at coordinate (i,j), and N×M is the size of the image.

[0050] The comparison of the average brightness value with the preset image brightness value includes: setting a completely transparent reference image, which is a moment before the beverage bottle to be classified is put in, and the brightness value of the image without the influence of the object taken by the visual component under the light source of the set intensity emitted by the light source component is set to the preset image brightness value B0, and the ratio of the average brightness value B1 to the preset image brightness value B1 is the transmittance T, T=B1 / B1×100%.

[0051] In this embodiment, the transmittance is calculated using the average brightness of the image to be tested and the average brightness of the reference image. The reference image is designed to be completely transparent (the transmittance is 100%) for ease of calculation. In addition, when there is no reference image, a theoretical maximum brightness value can be assumed. For example, in an 8-bit grayscale image, 255 is the maximum brightness value of the 8-bit grayscale image. The formula T = B1 / 255×100% can be used.

[0052] In another embodiment of the present invention, the visual component obtains the image of the beverage bottle to be classified, and analyzes the contrast of the image through an image processing algorithm to obtain the transmittance of the beverage bottle to be classified, sets a threshold for comparison classification, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified. In this embodiment, contrast is generally defined as the difference between the maximum and minimum brightness values ​​in an image. Machine vision technology uses a high-resolution camera to capture the image of the beverage bottle, and uses an image processing algorithm to read the image and convert it into a grayscale image, and calculate the contrast of the image. The contrast calculation formula is: C = I max -I min , where I max and I min They are the maximum and minimum brightness in the image respectively. The threshold is set according to the contrast comparison classification to control the action of the box door assembly and classify the beverage bottles to be recycled.

[0053] After the light transmittance analysis of the beverage bottles to be classified is completed, the main control system makes an instruction according to the light transmittance to drive the bottom plate 5 to move, so that the beverage bottles fall into the drop channel 6 below the bottom plate 5;

[0054] A rotatable door body 8 is provided at the entrance of the classification space 2 on the side close to the dropping channel 6. For example, a connection method between the door body 8 of the classification space 2 and the main body of the classification space 2 is to use an abutting spring for connection. When there is no external force, the door body 8 is in an open state, and is connected to the motor 9 through two connecting ropes 10 above the door body 8; when the door body 8 is to be opened, the motor 9 rotates, and the connecting rope 10 is loosened. Under the elastic force of the abutting spring, the door body 8 automatically opens and tilts. The maximum opening angle of the door body 8 is limited by the dropping channel 6, which can ensure that the beverage bottles fall into the classification space 2, and at the same time prevent the internal beverage bottles from falling out; when the door body 8 is closed, driven by the motor 915, the connecting rope 10 is tightened, and the door body 8 is closed under the action of the tension.

[0055] Different types of beverage bottles correspond to different storage boxes, which are transparent beverage bottles, colored translucent beverage bottles, and opaque beverage bottles from top to bottom. At the same time, the door panel has a certain compression effect on the bottles inside the classification space 2, which can increase the space utilization rate of the storage box and complete the classified storage of beverage bottles.

[0056] In another aspect, the present invention provides a method for sorting and recycling beverage bottles, comprising:

[0057] The light source assembly is controlled to emit a light source of set intensity, and the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified;

[0058] The calculation module obtains the light intensity received by the photoelectric sensor to calculate the transmittance of the beverage bottles to be classified, compares the classification setting threshold, controls the movement of the box door assembly, and classifies and recycles the beverage bottles to be classified.

[0059] The present invention uses a light source component to illuminate the beverage bottles to be tested, and a photoelectric sensor located below the beverage bottles to be classified receives the light intensity passing through the beverage bottles to be classified. A calculation module is used to obtain the light intensity received by the photoelectric sensor to calculate the transmittance of the beverage bottles to be classified, and the classification is compared with the set threshold value. The action of the box door component is controlled to classify and recycle the beverage bottles to be classified, and the beverage bottles are distinguished by the transmittance of different types of beverage bottles, so as to reduce the labor intensity of employees and improve the value of beverage bottle recycling.

[0060] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A classification and recycling device for beverage bottles, characterized in that: It comprises a classification box with multiple classification spaces, a box door component is arranged at the entrance of the classification space, and a recognition area, a light source component, a computing module and a recognition component are arranged at the delivery port of the classification box; The light source assembly is used to illuminate the beverage bottles to be classified, and the identification area is provided with a photoelectric sensor below the beverage bottles to be classified for receiving the light intensity passing through the beverage bottles to be classified; The calculation module obtains the light intensity received by the photoelectric sensor to calculate the light transmittance of the beverage bottles to be classified, compares it with the classification setting threshold, controls the action of the box door component, and classifies and recycles the beverage bottles to be classified.

2. The classification and recycling equipment for beverage bottles according to claim 1, characterized in that: After the identification area detects the beverage bottles to be classified, the light source assembly is controlled to emit a light source of a set intensity. The photoelectric sensor collects the light intensity passing through the beverage bottles to be classified, performs transmittance analysis on the beverage bottles to be classified, and classifies the beverage bottles according to their transmittance. The classification types include transparent beverage bottles, colored translucent beverage bottles, and completely opaque beverage bottles according to the materials of the beverage bottles.

3. The classification and recycling equipment for beverage bottles according to claim 2, characterized in that: The classification types set classification thresholds according to the materials of the beverage bottles, including: setting the transmittance of transparent beverage bottles to 70%-95%, setting the transmittance of colored translucent beverage bottles to 20%-70%, and setting the transmittance of completely opaque beverage bottles to 0%-20%.

4. The classification and recycling equipment for beverage bottles according to claim 3, characterized in that: When the photoelectric sensor collects the light intensity passing through the beverage bottle to be classified, a multi-point collection method is adopted, and the three points with the highest light source intensity are selected for average calculation to obtain the transmitted light intensity I t , transmitted light intensity I t The ratio of the light intensity to the preset light intensity I0 is the transmittance T, T = I t / I0×100%; Transmitted light intensity I t It is the intensity of the filtered direct light spot through the beverage bottle, and the preset light intensity I0 is the intensity of the light source with a set intensity emitted by the preset light source component.

5. The classification and recycling equipment for beverage bottles according to claim 4, characterized in that: The classification and recycling equipment is also provided with a visual component, which obtains images of beverage bottles to be classified, and analyzes the brightness of the images through an image processing algorithm to obtain the transmittance of the beverage bottles to be classified, compares the classification setting threshold, controls the movement of the box door component, and classifies and recycles the beverage bottles to be classified.

6. The classification and recycling equipment for beverage bottles according to claim 5, characterized in that: The visual component uses a high-resolution camera to capture images of beverage bottles to be classified. The computing module reads the images and converts them into grayscale images, constructs coordinates in the grayscale images, calculates the average brightness value of the images based on the grayscale images, and compares the average brightness value with a preset image brightness value to obtain the transmittance.

7. The classification and recycling equipment for beverage bottles according to claim 6, characterized in that: Calculating the average brightness value of the image according to the grayscale image includes: constructing coordinates in the grayscale image, and calculating the average brightness value of the image according to the grayscale image. The calculation formula of the average brightness value is: Among them, I(i,j) is the brightness value of the image at coordinate (i,j), and N×M is the size of the image.

8. The classification and recycling equipment for beverage bottles according to claim 7, characterized in that: The comparison of the average brightness value with the preset image brightness value includes: setting a completely transparent reference image, which is a moment before the beverage bottle to be classified is put in, and the brightness value of the image without the influence of the object taken by the visual component under the light source of the set intensity emitted by the light source component is set to the preset image brightness value B0, and the ratio of the average brightness value B1 to the preset image brightness value B1 is the transmittance T, T=B1 / B1×100%.

9. The classification and recycling equipment for beverage bottles according to claim 1, characterized in that: The box door assembly includes a bottom plate, the bottom plate is arranged at the input port, the bottom plate is arranged as an identification area, the bottom plate is movably assembled on the classification box, the classification space is arranged in a stacked manner, and the bottom of the bottom plate is arranged as a drop channel; The box door assembly also includes a door body, a motor and a connecting rope. One side of the door body can be movably mounted on the lower side of the entrance of the classification space, and the motor is mounted on the upper side of the classification space. One end of the connecting rope is connected to the motor, and the other end of the connecting rope is connected to the upper side of the door body. The motor can control the opening and closing of the door body in the falling channel.

10. A method for sorting and recycling beverage bottles, characterized in that: The device for recycling beverage bottles according to any one of claims 1 to 9 further comprises: The light source assembly is controlled to emit a light source of set intensity, and the photoelectric sensor collects the light intensity passing through the beverage bottles to be classified; The calculation module obtains the light intensity received by the photoelectric sensor to calculate the transmittance of the beverage bottles to be classified, compares the classification setting threshold, controls the movement of the box door assembly, and classifies and recycles the beverage bottles to be classified.

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