U-shaped conveying belt surface cleaning device

Abstract

The utility model provides a U-shaped conveyer belt surface cleaning device, including spraying piece, roll brush subassembly, dirt suction piece and cleaning blowing piece, the spraying piece is provided in front of roll brush subassembly for pre-wetting conveyer belt, the roll brush subassembly contacts conveyer belt surface for taking away dirt on conveyer belt surface, the cleaning blowing piece is provided with the dirt suction piece, the cleaning blowing piece is provided with the cleaning blowing piece. The dirt suction part is arranged behind the roller brush assembly and used for adsorbing falling dirt, and the cleaning and blowing part is arranged behind the dirt suction part and used for cleaning and blowing the cleaned conveying belt. The roller brush assembly comprises a brush head, the brush head is rotatably arranged above the conveying belt, bristles of the brush head make contact with the conveying belt, and the length of the bristles in the middle of the brush head is larger than that of the bristles at the two ends of the brush head, so that the axial section contour of the brush head is in an outwards-protruding arc shape. The brush head is matched with the shape of the U-shaped conveying belt, and the U-shaped conveying belt can be comprehensively cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyors, and particularly relates to a surface cleaning device for a U-shaped conveyor belt. Background Art

[0002] During the production and processing of cut tobacco, U-shaped conveyor belts are widely used. After long-term use, the surface of the conveyor belt will adhere to tobacco scale, which contains oily substances and is difficult to clean after sticking to the surface of the conveyor belt. If the tobacco scale is not cleaned, during the process of transporting cut tobacco by the conveyor belt, the tobacco scale will fall off with the operation of the conveyor belt and be difficult to remove after mixing into the cut tobacco, resulting in a reduction in the suction quality of the cut tobacco. Especially, the upper part of the surface of the U-shaped conveyor belt is concave, and ordinary cleaning methods are difficult to reach the concave part in the middle of the U-shaped belt, so it is impossible to effectively remove the tobacco scale adhering to the surface of the U-shaped belt. Content of the Utility Model

[0003] The purpose of the utility model is to propose a surface cleaning device for a U-shaped conveyor belt, in view of the above deficiencies of the prior art, the brush head is adapted to the shape of the U-shaped conveyor belt, and the U-shaped conveyor belt can be comprehensively cleaned.

[0004] The utility model proposes a surface cleaning device for a U-shaped conveyor belt, which includes a spraying member, a roller brush assembly, a dirt suction member and a blowing member. The spraying member is arranged in front of the roller brush assembly to pre-wet the conveyor belt. The roller brush assembly contacts the surface of the conveyor belt to take away the dirt on the surface of the conveyor belt. The dirt suction member is arranged behind the roller brush assembly to adsorb the fallen dirt. The blowing member is arranged behind the dirt suction member to blow the cleaned conveyor belt. The roller brush assembly includes a brush head, the brush head is rotatably arranged above the conveyor belt, and its bristles contact the conveyor belt. The length of the bristles in the middle of the brush head is greater than the length of the bristles at both ends, so that the axial cross-sectional contour of the brush head is an outwardly protruding arc shape.

[0005] A preferred technical solution of the utility model: A bracket is arranged above the conveyor belt, a motor is arranged on the bracket, and both ends of the brush head are rotatably arranged on the bracket, and the brush head is connected to the output shaft of the motor.

[0006] A preferred technical solution of the utility model: The bracket is movably arranged above the conveyor belt, an airbag is arranged above the bracket, and the internal pressure of the airbag can be changed by inflating and deflating, so that the bracket drives the brush head to move up and down above the conveyor belt.

[0007] A preferred technical solution of the utility model: A sensor is arranged on the bracket to detect whether the brush head contacts the conveyor belt.

[0008] A preferred technical solution of the utility model: Water vapor passes through the spraying member.

[0009] Preferred technical solution of the present utility model: There are two spraying members arranged in front of the roller brush assembly. One of the spraying members is arranged facing the surface of the conveyor belt, and the other spraying member is arranged facing the brush head.

[0010] Preferred technical solution of the present utility model: A sewage discharge channel is arranged inside the sewage suction member. The sewage discharge channel is externally connected to a negative pressure device. The sewage discharge channel forms a suction port on the sewage suction member, and the suction port contacts the bristles of the brush head.

[0011] Preferred technical solution of the present utility model: The width of the suction port is greater than or equal to the width of the brush head.

[0012] Preferred technical solution of the present utility model: The air blowing member is externally connected to a high-pressure air source for blowing the surface of the conveyor belt.

[0013] The U-shaped conveyor belt surface cleaning device of the present utility model has the following beneficial effects:

[0014] 1. The lengths of the bristles in the middle and on both sides of the brush head are different. The bristles in the middle of the brush head are longer, so that the contour of the bristles of the brush head is an outwardly protruding arc. The brush head is adapted to the shape of the U-shaped conveyor belt, and the bristles of the brush head can contact the surface of the U-shaped conveyor belt in all directions to comprehensively clean the U-shaped conveyor belt.

[0015] 2. The spraying member is arranged in front of the roller brush assembly to pre-wet the conveyor belt before the brush head cleans the conveyor belt, so as to soften the soot and facilitate the brush head to brush off the soot. At the same time, the high-temperature water vapor sprayed by the spraying member can further accelerate the softening of the soot.

[0016] 3. The sewage suction member directly contacts the bristles of the brush head, sucks and discharges the dirt adhered to the bristles after the brush head cleans the conveyor belt, cleans the brush head, and keeps the brush head in a clean state to clean the conveyor belt.

[0017] 4. The air blowing member is arranged behind the sewage suction member. There may be water stains on the surface of the conveyor belt after cleaning. The air blowing member blows air on the surface of the conveyor belt to air-dry the conveyor belt, so that the conveyor belt remains dry during use. At the same time, the blown air flow can blow off the soot that falls on the conveyor belt after the brush head is cleaned, further cleaning the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, similar reference numerals are used to denote similar elements. The following drawings are some embodiments of the present utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1This is the installation schematic diagram of the embodiment of the present utility model.

[0020] Figure 2 This is the side view of the embodiment of the present utility model.

[0021] Figure 3 This is the schematic diagram of the embodiment of the present utility model with two spraying parts.

[0022] Figure 4 This is the schematic diagram of the roller brush assembly in the embodiment of the present utility model.

[0023] Figure 5 This is the top view of the dirt suction part in the embodiment of the present utility model.

[0024] In the figure: 10, roller brush assembly; 11, brush head; 12, bracket; 13, airbag; 14, pressure sensor; 20, spraying part; 30, dirt suction part; 31, suction port; 40, air blowing part; 50, conveyor belt. Specific embodiments

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other arbitrarily.

[0026] Please refer to Figures 1 to 4 A U-shaped conveyor belt surface cleaning device includes a spraying part 20, a roller brush assembly 10, a dirt suction part 30 and an air blowing part 40 arranged in sequence along the direction of the U-shaped conveyor belt 50. The spraying part 20 is arranged in front of the roller brush assembly 10 to spray the conveyor belt 50 to wet the soot adhered to the surface of the conveyor belt 50; the roller brush assembly 10 moves relative to the conveyor belt 50 to scrape off the soot adhered to the surface of the conveyor belt 50; the dirt suction part 30 is arranged behind the roller brush assembly 10 to clean the roller brush assembly 10 so that the roller brush assembly 10 cleans the conveyor belt 50 in a clean state; the air blowing part 40 blows air on the surface of the conveyor belt 50 to dry the water stains remaining on the surface of the conveyor belt 50 after cleaning.

[0027] The roller brush assembly 10 includes a bracket 12 and a brush head 11. The brush head 11 is arranged above the conveyor belt 50 through the bracket 12. The brush head 11 is in a common style with bristles. In this application, the length of the bristles in the middle of the brush head 11 is greater than the length of the bristles at both ends of the brush head 11, so that the outer contour line of the bristles of the brush head 11 is an outwardly protruding arc shape, and the axial cross-section of the brush head 11 is similar to an oval. The brush head 11 can be adapted to the shape of the U-shaped conveyor belt 50. When the bristles at both ends of the brush head 11 contact the two side surfaces of the conveyor belt 50, the bristles in the middle can also contact the sunken surface in the middle of the conveyor belt 50 at the same time. The brush head 11 can comprehensively clean the surface of the conveyor belt 50 and avoid cleaning dead corners.

[0028] The bracket 12 is movably arranged above the conveyor belt 50 through an airbag 13. Specifically, the airbag 13 is arranged on the top of the bracket 12. The top surface of the airbag 13 is fixedly connected to the machine frame (a structure with a fixed position), and its bottom surface is fixedly connected to the top surface of the bracket 12. When the airbag 13 is inflated, the volume of the airbag 13 increases, the distance between the bracket 12 and the machine frame increases, the bracket 12 moves downward close to the conveyor belt 50, and the distance between the brush head 11 and the conveyor belt 50 decreases; when the airbag 13 is deflated, the volume of the airbag 13 decreases, the distance between the bracket 12 and the machine frame decreases, the bracket 12 moves upward away from the conveyor belt 50, and the distance between the brush head 11 and the conveyor belt 50 increases. By inflating and deflating the airbag 13, the volume of the airbag 13 can be changed to adjust the distance between the bristles of the brush head 11 and the surface of the conveyor belt 50, thereby ensuring that the bristles of the brush head 11 contact the surface of the conveyor belt 50 and guaranteeing the cleaning efficiency.

[0029] Further, a sensor is arranged on the bracket 12 to detect whether the bristles of the brush head 11 contact the conveyor belt 50. Specifically, in this embodiment, the sensor is a pressure sensor 14. The pressure sensor 14 is arranged between the side plate and the top plate of the bracket 12 to detect the pressure between the top plate and the side plate. When the bracket 12 moves downward, the brush head 11 is in close contact with the conveyor belt 50, and the pressure between the side plate and the top plate increases; when the bracket 12 moves upward, the gap between the brush head 11 and the conveyor belt 50 increases, and the pressure between the side plate and the top plate decreases. It can be judged whether the brush head 11 is in contact with the conveyor belt 50 through the pressure value detected by the sensor, and then the bracket 12 can be moved through the airbag 13 to keep the brush head 11 in contact with the conveyor belt 50.

[0030] As another implementation method, the sensor can be a distance sensor. The distance sensor is arranged at the bottom of the side plate of the bracket 12. The distance sensor is used to detect the distance between the bottom of the bracket 12 and the side edge of the surface of the conveyor belt 50. By detecting the distance, it can be judged whether the bristles on the brush head 11 contact the surface of the conveyor belt 50 without dead corners, and then the bracket 12 can be moved through the airbag 13 to keep the bristles of the brush head 11 in contact with the conveyor belt 50.

[0031] Please refer to Figure 4, in this embodiment, the bracket 12 is in an inverted U shape. The brush head 11 is arranged between the two side plates of the bracket 12, and both ends of the brush head 11 are rotatably connected to the bracket 12. A motor is fixedly arranged on the bracket 12, and one end of the brush head 11 is connected to the output shaft of the motor. The motor is used to drive the brush head 11 to rotate, so that a relative rotation occurs between the brush head 11 and the conveyor belt 50. During the rotation of the brush head 11, the bristles contact the soot on the conveyor belt 50 and take it away to complete the cleaning.

[0032] It should be noted that, in order to achieve continuous cleaning, the conveyor belt 50 should be kept in a moving state; in order to enable the bristles of the brush head 11 to effectively take away the soot, the rotation direction of the brush head 11 should meet the requirement that the linear velocity direction of the contact point between it and the conveyor belt 50 is opposite to the direction of the conveyor belt 50, as Figure 2 shown. The arrow directions in the figure are the moving direction of the conveyor belt 50 and the rotation direction of the brush head 11 respectively.

[0033] The spraying member 20 is arranged in front of the roller brush assembly 10. In this embodiment, the spraying member 20 includes a plurality of nozzles. The plurality of nozzles are arranged side by side in a row, and the number and positional relationship of the nozzles should be ensured so that the liquid spraying range of the spraying member 20 can cover the width direction of the conveyor belt 50. The spraying member 20 is arranged above the conveyor belt 50 and faces the surface of the conveyor belt 50. When the conveyor belt 50 moves, the spraying member 20 sprays liquid onto the surface of the conveyor belt 50 to make the soot on the surface of the conveyor belt 50 absorb water and become wet, so as to facilitate the rotation of the brush head 11 relative to the conveyor belt 50 to take away the soot.

[0034] Preferably, high-temperature water vapor is passed through the spraying member 20 to accelerate the softening speed of the soot.

[0035] In this implementation, the nozzles of the spraying member 20 spray high-temperature water vapor towards the contact area between the brush head 11 and the conveyor belt 50. While wetting the conveyor belt 50, the bristles on the brush head 11 can be kept in a wet state at the same time, which is convenient for the dirt suction assembly to adsorb the stains from the bristles.

[0036] Preferably, there are two spraying members 20, and the two spraying members 20 are arranged at intervals. One spraying member 20 is arranged in front of the roller brush assembly 10 and is used to specifically spray high-temperature steam on the conveyor belt 50; the other spraying member 20 is arranged close to the roller brush assembly 10, and its nozzles face the contact area between the brush head 11 and the conveyor belt 50 and are used to wet the brush head 11 and further wet the conveyor belt 50, as Figure 3 shown. There is a certain distance between the two spraying members 20. After the front spraying member 20 wets the conveyor belt 50, when the conveyor belt 50 moves between the roller brush assemblies 10, there is a certain time for the water mist to infiltrate the soot and soften the soot, so that the subsequent brush head 11 can more easily brush the soot off the conveyor belt 50.

[0037] The dirt suction member 30 is fixedly arranged behind the roller brush assembly 10 to suck the soot adhered to the brush head 11, so as to keep the brush head clean. Specifically, in this embodiment, the dirt suction member 30 is plate-shaped, and a sewage discharge pipe is arranged inside it. The sewage discharge pipe is externally connected to a negative pressure device. The sewage discharge pipe forms a suction port 31 on the end face of the dirt suction member 30, and the suction port 31 is arranged opposite to the bristles of the brush head 11. When the external negative pressure device is started, a negative pressure is formed at the suction port 31, and the soot adhered to the bristles of the brush head 11 is sucked into the sewage discharge pipe, completing the cleaning of the brush head 11. Moreover, the width dimension of the suction port 31 should be greater than or equal to the width of the brush head 11, so that the suction port 31 can completely cover the brush head 11 and avoid cleaning dead corners.

[0038] Preferably, the suction port 31 is in contact with the bristles of the brush head 11, which can improve the dirt removal effect of the dirt suction member 30 and reduce the probability of soot falling onto the conveyor belt 50.

[0039] In this embodiment, the dirt suction member 30 is plate-shaped, and its end is set to be an inward concave arc shape. The suction port 31 is arranged on this end face, as Figure 5 shown; the arc-shaped end face of the dirt suction member 30 is arranged to fit the bristles of the brush head 11, which can better cover the bristles of the brush head 11 and ensure that the stains on the bristles are all sucked into the suction port 31.

[0040] There may be water stains on the surface of the conveyor belt 50 brushed by the brush head 11. In order to keep the surface of the conveyor belt 50 dry and facilitate transportation. A blowing member 40 is arranged behind the dirt suction member 30, which is arranged facing the surface of the conveyor belt 50. The blowing member 40 is externally connected to a gas source, and compressed air is blown towards the surface of the conveyor belt 50 through the blowing member 40. At the same time, the airflow ejected by the blowing member 40 can blow away the soot that has not been sucked away by the dirt suction member 30 and has fallen onto the conveyor belt 50, ensuring that the conveyor belt 50 is cleaned.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A U-shaped conveyor belt surface cleaning device, characterized in that: The invention comprises a spraying member (20), a roller brush assembly (10), a dirt suction member (30) and a blowing member (40), wherein the spraying member (20) is arranged in front of the roller brush assembly (10) to pre-wet the conveyor belt (50), the roller brush assembly (10) contacts the surface of the conveyor belt (50) to remove dirt on the surface of the conveyor belt (50), the dirt suction member (30) is arranged behind the roller brush assembly (10) to absorb dirt that has fallen off, and the blowing member (40) is arranged behind the dirt suction member (30) to blow the conveyor belt (50) after cleaning; The roller brush assembly (10) comprises a brush head (11), the brush head (11) being rotatably arranged above the conveyor belt (50), the bristles of which are in contact with the conveyor belt (50), the bristles of which are in the middle of the brush head (11) being longer than the bristles of which are in the ends, so that the axial cross-sectional profile of the brush head (11) is in the shape of an outwardly protruding arc.

2. A U-shaped conveyor belt surface cleaning device according to claim 1, characterized in that: A bracket (12) is arranged above the conveyor belt (50), a motor is arranged on the bracket (12), two ends of the brush head (11) are rotatably arranged on the bracket (12), and the brush head (11) is connected to the output shaft of the motor.

3. A U-shaped conveyor belt surface cleaning device according to claim 2, characterized in that: The support (12) is movably arranged above the conveyor belt (50), and an air bag (13) is arranged above the support (12). The internal pressure of the air bag (13) can be changed by inflating and deflating air so that the support (12) drives the brush head (11) to move up and down above the conveyor belt (50).

4. A U-shaped conveyor belt surface cleaning device according to claim 2, characterized in that: The bracket (12) is provided with a sensor for detecting whether the brush head (11) is in contact with the conveyor belt (50).

5. A U-shaped conveyor belt surface cleaning device according to claim 1, characterized in that: Water vapor is passed through the interior of the spraying element (20).

6. A U-shaped conveyor belt surface cleaning device according to claim 5, characterized in that: Two spraying parts (20) are arranged in front of the roller brush assembly (10), one of the spraying parts (20) is arranged toward the surface of the conveyor belt (50), and the other of the spraying parts (20) is arranged toward the brush head (11).

7. A U-shaped conveyor belt surface cleaning device according to claim 1, characterized in that: The dirt suction member (30) is provided with a drainage channel inside, the drainage channel is externally connected to a negative pressure device, the drainage channel forms a suction port (31) on the dirt suction member (30), and the suction port (31) contacts the bristles of the brush head (11).

8. A U-shaped conveyor belt surface cleaning device according to claim 7, characterized in that: The width of the suction port (31) is greater than or equal to the width of the brush head (11).

9. A U-shaped conveyor belt surface cleaning device according to claim 1, characterized in that: The cleaning and blowing member (40) is externally connected to a high-pressure gas source and is used to clean and blow the surface of the conveyor belt (50).

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