Cleaning device for conveying roller of conveying belt

Abstract

The utility model relates to the technical field of conveying roller cleaning devices, and discloses a conveying belt conveying roller cleaning device which comprises a fixing frame parallel to a conveying roller, rotating frames are hinged to the two ends of the fixing frame, and a main scraper and an auxiliary scraper are arranged at the ends, close to the conveying roller, of the rotating frames. The main scraper is used for reversely scraping tobacco soot on the surface of the conveying roller, the auxiliary scraper is used for smoothly scraping the tobacco soot on the surface of the conveying roller, and a return spring is arranged between the other end of the rotating frame and the fixing frame. The problem that in the prior art, scraping maintenance of tobacco dirt on the surface of a conveying roller wastes time and labor is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of conveyor roller cleaning devices, and in particular to a conveyor belt conveyor roller cleaning device. Background Technology

[0002] In cigarette production lines, conveyor belts are the main equipment for transporting tobacco products online. These conveyor belts operate in an environment of tobacco dust and pollutants, and the surface of the conveyor rollers is prone to accumulating dirt, forming irregular soot deposits. This results in inconsistent belt tension, alters the local friction of the belt, and reduces its service life. It may also change the belt's conveying direction, causing the belt to run off-track.

[0003] In response to the above situation, during routine maintenance, the conveyor roller needs to be disassembled and scraped for maintenance. After maintenance, the idler roller is then reinstalled. The maintenance process is time-consuming and labor-intensive, and rigid scraping will affect the service life of the idler roller. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a conveyor belt conveyor roller cleaning device to solve the problem of time-consuming and laborious scraping and maintenance of conveyor roller surface soot in the prior art, so as to complete the cleaning of conveyor roller surface soot during the production process and provide a good cleaning effect.

[0005] This utility model solves the above-mentioned technical problems through the following technical means: a conveyor belt conveyor roller cleaning device, including a fixed frame arranged parallel to the conveyor roller, a rotating frame hinged at both ends of the fixed frame, a main scraper and a secondary scraper provided at one end of the rotating frame near the conveyor roller, the main scraper being used to scrape the surface grime of the conveyor roller in the reverse direction, and the secondary scraper being used to scrape the surface grime of the conveyor roller in the forward direction, and a return spring being provided between the other end of the rotating frame and the fixed frame.

[0006] Optionally, the rotating frame has a first mounting groove and a second mounting groove sequentially opened at one end near the conveyor roller along the rotation direction of the conveyor roller, and a main scraper and a secondary scraper are detachably connected in the first mounting groove and the second mounting groove, respectively.

[0007] Optionally, the main scraper forms an initial angle of 15°-20° with the horizontal centerline of the conveyor roller to enhance the scraping force of the main scraper.

[0008] Optionally, the initial distance between the main scraper and the surface of the conveyor roller is 0.5mm-1mm. Setting an appropriate initial distance avoids rigid collisions between the hard main scraper and the conveyor roller due to excessive proximity, while also preventing reduced scraping efficiency due to excessive distance.

[0009] Optionally, the secondary scraper forms an initial angle of 5°-8° with the horizontal centerline of the conveyor roller. This relatively small angle preserves sufficient frictional resistance.

[0010] Optionally, the initial distance between the secondary scraper and the surface of the conveyor roller is 0.2mm-0.5mm. Compared to the main scraper, the secondary scraper is closer to the conveyor roller, which helps to ensure sufficient friction to clean residual soot.

[0011] Optionally, both the main scraper and the auxiliary scraper are provided with arc-shaped cutting edges that match the curvature of the outer circumference of the conveyor roller. The arc-shaped cutting edges help to evenly distribute the scraping force across the entire contact surface, disperse contact stress, and help delay the aging of the scraper material, thus extending its service life.

[0012] Optionally, a limiting post is also provided inside the return spring, and the limiting post is mounted on the fixed frame. The limiting post is used to limit the maximum rotatable tilt angle of the rotating frame.

[0013] The beneficial effects of this utility model are:

[0014] This invention features a rotating frame hinged at both ends of a fixed frame. The rotating frame is equipped with a main scraper for reverse scraping of soot from the surface of the conveyor roller and a secondary scraper for forward scraping. A return spring provides restoring force to the rotating frame. When the soot thickness on the conveyor roller surface exceeds the initial distance between the scraper and the conveyor roller, the cleaning device automatically operates. The high-hardness main scraper reverses and removes large pieces of soot from the roller surface, while the softer secondary scraper forward scrapes the remaining soot from the conveyor roller surface. Friction removes residual soot debris and also provides a certain polishing effect. This creates a two-stage staggered cleaning mode of "hard at the front, soft at the back" for efficient cleaning of the soot on the conveyor roller surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 4 yes Figure 3 A magnified view of a portion of point M in the middle.

[0019] Among them, 1-fixed frame, 2-rotating frame, 21-main scraper, 22-secondary scraper, 23-first mounting groove, 24-second mounting groove, 3-transfer roller, 41-return spring, 42-limiting post. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0021] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0022] like Figures 1-4 As shown, this utility model discloses a conveyor belt roller cleaning device, including a fixed frame 1 arranged parallel to the conveyor roller 3. The fixed frame 1 is fixedly installed on the conveyor belt body by screws. A rotating frame 2 is hinged to both ends of the fixed frame 1. The rotating frame 2 is provided with a main scraper 21 and a secondary scraper 22 at one end near the conveyor roller 3. The main scraper 21 is used to scrape the soot on the surface of the conveyor roller 3 in the reverse direction, that is, the blade of the main scraper 21 faces the opposite direction of the rotation of the conveyor roller 3. The shearing force formed by the relative speed difference between the main scraper 21 and the conveyor roller 3 is used to "scrape" the soot formed on the surface of the conveyor roller 3. The secondary scraper 22 is used to scrape the soot on the surface of the conveyor roller 3 in the forward direction, that is, the blade of the secondary scraper 22 faces the same direction as the rotation of the conveyor roller 3. The friction between the secondary scraper 22 and the surface of the conveyor roller 3 is used to clean the residual soot on the surface of the conveyor roller 3. A return spring 41 is provided between the other end of the rotating frame 2 and the fixed frame 1. The return spring 41 provides the elastic force for the rotating frame 2 to return to its initial position.

[0023] In this embodiment, a limiting post 42 is also provided inside the return spring 41. The limiting post 42 is set on the fixed frame 1. The limiting post 42 is used to limit the maximum rotatable tilt angle of the rotating frame 2. The value of this tilt angle is determined by the distance between the top end face of the limiting post 42 and the rotating frame 2. For example, the limiting post 42 is a bolt that is threaded to the bottom of the fixed frame 1, so that the height of the limiting post 42 can be adjusted, thereby finely adjusting the distance between the end face of the limiting post 42 and the rotating frame 2.

[0024] In this embodiment, the rotating frame 2 has a first mounting groove 23 and a second mounting groove 24 sequentially opened at one end near the conveyor roller 3 along the rotation direction of the conveyor roller 3. The main scraper 21 and the auxiliary scraper 22 are detachably connected in the first mounting groove 23 and the second mounting groove 24, respectively.

[0025] In this embodiment, the main scraper 21 and the conveyor roller 3 form an initial angle of 15°-20° along the horizontal centerline. The cutting edge of the main scraper 21 is slightly downward, and the initial distance between the main scraper 21 and the surface of the conveyor roller 3 is 0.5mm-1mm. When the thickness of the accumulated soot on the surface of the conveyor roller 3 exceeds the initial distance, the main scraper 21 and the surface of the conveyor roller 3 form a "scraping" effect, efficiently peeling off most of the adhered material using shearing force. When the main scraper 21 scrapes the soot on the surface of the conveyor roller 3, the reaction force exerted by the soot on the main scraper 21 will cause the initial angle to decrease slightly until the other end of the rotating frame 2 abuts against the limiting post 42. During the scraping process, the return spring 41 always provides the elastic force to return the rotating frame to its initial position, and this elastic force changes with the deformation of the return spring 41. The main scraper is made of a relatively hard material (Shore A80-90, such as polyurethane, fluororubber, etc., and is also relatively wear-resistant), which can withstand the high shearing force of reverse scraping.

[0026] In this embodiment, the secondary scraper 22 forms an initial angle of 5°-8° with the horizontal centerline of the conveyor roller 3. The cutting edge of the secondary scraper 22 is slightly upward, and the initial distance between the secondary scraper 22 and the surface of the conveyor roller 3 is 0.2mm-0.5mm. When the secondary scraper 22 scrapes the surface of the conveyor roller 3, the scraper and the surface of the roller rub in the same direction, removing residual soot and debris through friction and also achieving a certain polishing effect. Compared with the main scraper 21, the secondary scraper 22 is made of a softer material (Shore A60-70, such as neoprene rubber or silicone rubber).

[0027] Specifically, in this embodiment, the conveyor roller 3 is as follows: Figure 3 As shown, the rotating frame 2 rotates counterclockwise, while the main scraper 21 rotates clockwise and returns to its original position. The main scraper 21 forms an initial counterclockwise angle of 15°-20° with the horizontal center line of the conveyor roller 3, while the auxiliary scraper 22 forms an initial clockwise angle of 5°-8° with the horizontal center line of the conveyor roller 3. To prevent excessive rotation when the rotating frame 2 returns to its original position, a limiting block fixed to the machine body and abutting against the initial position of the rotating frame 2 is provided above the return spring 41.

[0028] Both the main scraper 21 and the auxiliary scraper 22 are equipped with arc-shaped cutting edges that match the curvature of the outer circumference of the conveyor roller 3. The arc-shaped cutting edges allow the main scraper 21 and the auxiliary scraper 22 to continue scraping even after the cutting edges are worn. At the same time, the arc-shaped cutting edges evenly distribute the scraping force to the entire contact surface, disperse the contact stress, and help delay the aging of the scraper material and extend its service life.

[0029] It should be understood that a dust collection box can be installed below the cleaning device to collect the scraped soot, or a negative pressure dust collection device or other conventional dust removal methods can be installed, which will not be elaborated here.

[0030] The working principle of this utility model is as follows:

[0031] Before using the cleaning device of this utility model, fix the fixing frame 1 on the conveyor belt body with screws, rotate and adjust the rotating frame 2, adjust the preset initial length of the return spring 41 and the distance between the end face of the limiting post 42 and the rotating frame 2, so that the main scraper 21 and the auxiliary scraper 22 on the rotating frame 2 are close to the surface of the conveyor roller 3 according to the preset initial angle and initial distance.

[0032] The surface of the conveyor roller 3 is initially clean. When the thickness of the soot on the surface of the conveyor roller 3 exceeds the initial distance between the scraper and the conveyor roller 3, the cleaning device automatically operates. The high-hardness main scraper 21 scrapes away large pieces of soot from the surface of the idler roller in the reverse direction, while the softer secondary scraper 22 scrapes away the remaining soot on the surface of the conveyor roller 3 in the forward direction. The friction removes residual soot debris and also has a certain polishing effect. This forms a two-stage staggered cleaning mode of "hard in the front and soft in the back" to achieve efficient cleaning of the soot on the surface of the conveyor roller.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A conveyor belt roller cleaning device, characterized in that: The device includes a fixed frame (1) arranged parallel to the conveyor roller (3), with a rotating frame (2) hinged at both ends of the fixed frame (1). The rotating frame (2) has a main scraper (21) and a secondary scraper (22) at one end near the conveyor roller (3). The main scraper (21) is used to scrape the soot on the surface of the conveyor roller (3) in the reverse direction, and the secondary scraper (22) is used to scrape the soot on the surface of the conveyor roller (3) in the forward direction. A return spring (41) is provided between the other end of the rotating frame (2) and the fixed frame (1).

2. The conveyor belt conveyor roller cleaning device according to claim 1, characterized in that: The rotating frame (2) has a first mounting groove (23) and a second mounting groove (24) sequentially opened at one end near the conveying roller (3) along the rotation direction of the conveying roller (3). The first mounting groove (23) and the second mounting groove (24) are respectively detachably connected to the main scraper (21) and the auxiliary scraper (22).

3. The conveyor belt roller cleaning device according to claim 1, characterized in that: The main scraper (21) forms an initial angle of 15°-20° with the horizontal center line of the conveyor roller (3).

4. The conveyor belt roller cleaning device according to claim 3, characterized in that: The initial distance between the main scraper (21) and the surface of the conveying roller (3) is 0.5mm-1mm.

5. The conveyor belt conveyor roller cleaning device according to claim 1, characterized in that: The secondary scraper (22) forms an initial angle of 5°-8° with the horizontal center line of the conveyor roller (3).

6. The conveyor belt conveyor roller cleaning device according to claim 5, characterized in that: The initial distance between the secondary scraper (22) and the surface of the conveyor roller (3) is 0.2mm-0.5mm.

7. The conveyor belt conveyor roller cleaning device according to claim 1, characterized in that: Both the main scraper (21) and the auxiliary scraper (22) are provided with arc-shaped cutting edges that match the curvature of the outer circumference of the conveying roller (3).

8. The conveyor belt conveyor roller cleaning device according to any one of claims 1-7, characterized in that: The return spring (41) is also equipped with a limiting post (42), which is set on the fixed frame (1).

Images