Wiper for belt conveyor

Abstract

The invention discloses a wiper for a belt conveyor, relates to the technical field of belt conveyors, and solves the problem that accumulated water and dust adhered to an open-air belt conveyor in rainy days are difficult to clean in the prior art. Comprising a conveying assembly, and the conveying assembly comprises a rack, a roller set and a conveying belt arranged on the roller set; the collecting and treating bin is fixedly connected to one side of the rack, a bin opening of the collecting and treating bin faces the conveying assembly, and a cleaning opening is formed in the bottom of the collecting and treating bin; the cleaning mechanism is used for cleaning residual water, dirt or adhesive substances on the surface of the conveying belt; the cleaning mechanism comprises a water scraping assembly and a negative pressure suction device. The water scraping assembly comprises a splayed electric push rod which is fixedly arranged on the top surface of the bin opening of the collecting and treating bin; by means of the design, dust attached to the conveying belt can be effectively removed, and the burden of manual cleaning is greatly relieved. In addition, according to the scheme, the surface of the conveying belt is rapidly dried, and powder materials are prevented from being attached to the conveying belt.

Description

Technical Field

[0001] This invention belongs to the technical field of belt conveyors, and particularly relates to a wiper for belt conveyors. Background Technology

[0002] Belt conveyors, also known as belt conveyors or rubber belt conveyors, are indispensable and economical logistics conveying equipment for building rhythmic assembly lines. Based on conveying capacity, belt conveyors can be divided into heavy-duty and light-duty categories: heavy-duty belt conveyors, such as mining belt conveyors; and light-duty belt conveyors, which are widely used in industries such as electronics, plastics, food, light industry, chemicals, and pharmaceuticals. Belt conveyors are characterized by strong conveying capacity, long distance, simple structure, and easy maintenance, and can easily achieve programmed control and automated operation. They utilize the continuous or intermittent movement of the conveyor belt to efficiently transport items weighing less than 100KG or powdery and granular materials, operating at high speed and smoothly with low noise, and supporting incline and slope conveying.

[0003] Currently, when open-air belt conveyors are shut down due to rain, rainwater easily accumulates on the conveyor belt. When they resume operation, this accumulated water may be carried into the transfer station, interfering with the normal operation of the conveyor belt. Although scrapers can be installed to remove rainwater, it is difficult to effectively remove adhering dust and debris, causing many inconveniences for subsequent cleaning work.

[0004] In summary, existing open-air belt conveyors suffer from problems such as water accumulation and dust adhesion that are difficult to clean during rainy weather. Summary of the Invention

[0005] This invention provides a wiper for belt conveyors, which can solve the problems of water accumulation and dust adhesion in open-air belt conveyors that are difficult to clean in rainy weather.

[0006] To achieve the above objectives, an embodiment of the first aspect of the present invention provides a wiper for a belt conveyor, comprising a conveying assembly, the conveying assembly including a frame, a roller assembly and a conveyor belt disposed on the roller assembly; Also includes: A collection and processing compartment is fixedly connected to one side of the frame. The opening of the collection and processing compartment faces the conveying assembly, and a cleaning port is provided at the bottom of the collection and processing compartment. Cleaning mechanism, used to remove residual moisture, dirt or adhering substances from the surface of the conveyor belt; The cleaning mechanism includes a squeegee assembly and a negative pressure suction device; The wiper assembly includes an electric push rod in the shape of an "8" fixedly installed on the top surface of the collection and treatment bin opening, a spring device fixedly installed at the end of the electric push rod, and a rubber scraper fixedly installed on the spring device. The negative pressure suction device includes mounting seats fixedly installed on the inner wall of the collection and processing chamber, reciprocating screws rotatably disposed on the inner side of the two mounting seats, sliding seats threaded on the reciprocating screws, and suction covers fixedly installed on the side of the sliding seats. A negative pressure box is fixedly installed on the outer top of the collection and processing chamber, and a corrugated suction tube is fixedly installed on the negative pressure box. The other end of the corrugated suction tube is fixedly installed on the side of the suction cover.

[0007] A further improvement is that the spring device includes a compression seat, a plurality of compression springs fixedly installed in the compression seat, and a compression block disposed at the port of the compression seat and connected to the compression springs. The compression seat is fixedly connected to the outside of a mounting ear. The end of the electric push rod is fixedly installed in the port of the mounting ear by a fixing bolt. A rubber scraper is disposed on the compression block.

[0008] A further improvement is that a DC servo motor is fixedly mounted on the side of the compression block via a bracket, and a rotating rod is fixedly connected to the main shaft of the DC servo motor. A row of female buckles is fixedly mounted on the side of the rotating rod, and a row of male buckles is fixedly mounted on the side of the rubber scraper. The rubber scraper is fixed to the rotating rod via the male buckles on the side.

[0009] A further improvement is that the negative pressure box is provided with a connected barrier zone and a negative pressure zone, a barrier filter element is fixedly installed in the barrier zone, and a power suction pump is fixedly installed in the negative pressure zone.

[0010] A further improvement is that it also includes a drying component for drying the conveyor belt; The drying assembly includes a mounting frame mounted on a frame and near the collection and processing chamber, a blower fixedly mounted on the top surface of the mounting frame, an air guide channel fixedly mounted in the port of the mounting frame, and an electric heating tube fixedly mounted in the port of the air guide channel. A flange is provided on the top surface of the air guide channel, and the flange is fixedly connected to the output port of the blower.

[0011] A further improvement is that the roller group includes a set of auxiliary rollers rotatably mounted on the frame, and tension rollers and pressure rollers rotatably mounted in the ports on both sides of the frame, with the conveyor belt laid on the auxiliary rollers, tension rollers and pressure rollers.

[0012] A further improvement is that guide rods are fixedly installed on the inner sides of the two mounting seats above the reciprocating screw, and the sliding seat is movably sleeved on the guide rods.

[0013] Compared with the prior art, the beneficial effects of the present invention are: (1) This invention activates a pair of electric push rods located inside the chamber, causing each push rod to extend and push a rubber scraper to fit tightly against the surface of the conveyor belt, ensuring that both ends of the rubber scraper are in contact with each other. Next, the rubber scraper or soft brush is secured by a male buckle on the side and a female buckle on the rotating rod. Subsequently, initial cleaning can be performed using the rubber scraper, or the soft brush can be rotated by starting a DC servo motor, using the rotating soft brush to scrub away dirt and adhering substances on the surface of the conveyor belt. During the cleaning process, a stepper motor is simultaneously activated to drive the reciprocating screw to rotate, and a power suction pump inside the negative pressure chamber is turned on. The negative pressure suction generated by the power suction pump, combined with the reciprocating screw driving the sliding seat and suction hood to perform uniform linear reciprocating motion, under the combined action of the reciprocating movement of the suction hood and the negative pressure suction, sucks in the scraped rainwater, dirt, and adhering substances, achieving automatic cleaning of the conveyor belt. This design effectively removes dust and debris adhering to the conveyor belt, significantly reducing the workload of manual cleaning.

[0014] (2) This invention also incorporates a spring device at the end of the electric push rod. When the rubber scraper and soft brush are attached to the conveyor belt, the spring device adaptively adjusts the pressure of the rubber scraper and soft brush on the conveyor belt, thus preventing excessive pressure from causing abnormal wear on the conveyor belt surface. A drying component is also designed simultaneously. After the conveyor belt is cleaned, the electric heating element and blower are activated. The electric heating element generates heat, and the blower blows hot air onto the surface of the conveyor belt, thereby quickly drying the surface and preventing powdery materials from adhering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the drying component structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the cleaning mechanism of the present invention installed inside the collection and processing chamber; Figure 4 This is a schematic diagram of the side structure of the compression block and rubber scraper of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the compression seat and internal compression block of the present invention; Figure 6 This is a schematic diagram of the structure of the rubber scraper of the present invention attached to the conveyor belt.

[0016] Marked in the image: 1. Conveying assembly; 11. Frame; 12. Auxiliary rollers; 13. Tensioning rollers; 14. Pressing rollers; 15. Conveyor belt; 2. Collection and processing warehouse; 3. Cleaning mechanism; 31. Wiper assembly; 311. Electric push rod; 312. Rubber scraper; 313. Mounting ear; 314. Compression seat; 315. Compression spring; 316. Compression block; 317. DC servo motor; 318. Rotating rod; 319. Female buckle; 310. Female buckle; 32. Negative pressure suction device; 321. Mounting base; 322. Reciprocating lead screw; 323. Sliding seat; 324. Suction hood; 325. Guide rod; 326. Negative pressure box; 327. Corrugated suction tube; 301. Barrier filter element; 302. Power suction pump; 4. Drying components; 41. Mounting bracket; 42. Blower; 43. Air duct; 44. Electric heating element. Detailed Implementation

[0017] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 6 As shown, a wiper for a belt conveyor includes: Conveying assembly 1 includes a frame 11, a group of auxiliary rollers 12 rotatably mounted on the frame 11, tension rollers 13 and pressure rollers 14 rotatably mounted in the ports on both sides of the frame 11, and a conveyor belt 15 laid on the auxiliary rollers 12, tension rollers 13 and pressure rollers 14. It should be noted that the tension roller 13 is driven by a drive device externally mounted on the frame 11. The conveying assembly 1 is existing technology and its working principle has been disclosed. Other auxiliary components will not be described in detail in this embodiment. The collection and processing chamber 2 is fixedly connected to one side of the frame 11. The opening of the collection and processing chamber 2 faces the conveying component 1. The bottom of the collection and processing chamber 2 is provided with a cleaning port, which is used to collect and clean the residual dirt that falls into the chamber. Cleaning mechanism 3 is used to remove residual moisture, dirt or adhering substances from the surface of conveyor belt 15; The cleaning mechanism 3 includes a squeegee assembly 31, which includes an electric push rod 311 fixedly installed on the top surface of the collection and treatment chamber 2 in a figure-eight shape, a spring device fixedly installed at the end of the rod of the electric push rod 311, and a rubber scraper 312 fixedly installed on the spring device. When the conveyor belt 15 is rotating, the rubber scraper 312 will scrape the rainwater from the conveyor belt 15 to the edge. The spring device includes a compression seat 314, a plurality of compression springs 315 fixedly installed in the compression seat 314, and a compression block 316 disposed at the port of the compression seat 314 and connected to the compression springs 315. The compression seat 314 is fixedly connected to the outside of the compression seat 314. The end of the electric push rod 311 is fixedly installed in the port of the mounting ear 313 by fixing bolts. The rubber scraper 312 is disposed on the compression block 316. When the rubber scraper 312 is attached to the conveyor belt 15, the spring device can adaptively adjust the pressure of the rubber scraper 312 on the conveyor belt 15, thereby preventing excessive pressure from causing abnormal wear on the surface of the conveyor belt 15. In this embodiment, there is also a preferred implementation: a DC servo motor 317 is fixedly mounted on the side of the compression block 316 via a bracket; a rotating rod 318 is fixedly connected to the main shaft of the DC servo motor 317; a row of female buckles 319 are fixedly mounted on the side of the rotating rod 318; and a row of male buckles 310 are fixedly mounted on the side of the rubber scraper 312. The rubber scraper 312 is engaged with the female buckles 319 on the side of the rotating rod 318 via the male buckles 310 on its side, enabling convenient assembly and disassembly. When the soft brush is attached to the conveyor belt 15, the spring device can adaptively adjust the pressure of the soft brush on the conveyor belt 15, thereby preventing excessive pressure from causing abnormal wear on the surface of the conveyor belt 15. It should be noted that the rubber scraper 312 can be replaced with a soft brush, which, driven by the DC servo motor 317, brushes the dirt or adhering substances on the surface of the conveyor belt 15. The cleaning mechanism 3 also includes a negative pressure suction device 32, which is used to suction and clean residual moisture, dirt or adhering substances on the conveyor belt 15. The negative pressure suction device 32 includes mounting seats 321 fixedly installed on the inner wall of the collection and processing chamber 2, reciprocating screws 322 rotatably set inside the two mounting seats 321, sliding seats 323 threaded on the reciprocating screws 322, and suction covers 324 fixedly installed on the side of the sliding seats 323. Guide rods 325 are fixedly installed on the inner side of the two mounting seats 321 above the reciprocating screws 322. The sliding seats 323 are movably sleeved on the guide rods 325. A negative pressure box 326 is fixedly installed on the outer top of the collection and processing chamber 2. A corrugated suction tube 327 is fixedly installed on the negative pressure box 326. The other end of the corrugated suction tube 327 is fixedly installed on the side of the suction cover 324. Specifically, the negative pressure box 326 is equipped with a connected barrier zone and a negative pressure zone. A barrier filter element 301 is fixedly installed in the barrier zone, and a power suction pump 302 is fixedly installed in the negative pressure zone. A stepper motor drives a reciprocating screw 322 to rotate, simultaneously activating the power suction pump 302 within the negative pressure box 326. The power suction pump 302 generates negative pressure suction, causing the reciprocating screw 322 to drive the sliding seat 323 and the suction hood 324 in a uniform linear reciprocating motion. Under the combined action of the reciprocating motion of the suction hood 324 and the negative pressure suction, rainwater, dirt, or adhering substances scraped off can be sucked in, achieving automatic cleaning. This design effectively removes dust and debris adhering to the conveyor belt 15, greatly reducing the burden of manual cleaning. It should be noted that the filter element 301 is an air filter element, which serves to block dirt; in addition, the reciprocating screw 322 is driven by an external stepper motor. like Figure 1 and Figure 2 As shown in this embodiment, another implementation scheme is also provided, as detailed below: Drying assembly 4 is used to dry conveyor belt 15. Drying assembly 4 includes a mounting frame 41 mounted on frame 11 and close to the collection and processing chamber 2, a blower 42 fixedly mounted on the top surface of mounting frame 41, an air guide channel 43 fixedly mounted in the port of mounting frame 41, and an electric heating tube 44 fixedly mounted in the port of air guide channel 43. A flange is provided on the top surface of the air guide channel 43. The flange is fixedly connected to the output port of the blower 42. After the conveyor belt 15 is cleaned, the electric heating tube 44 and the blower 42 are started. The electric heating tube 44 generates heat, and the blower 42 blows hot air onto the surface of the conveyor belt 15, thereby quickly drying the surface of the conveyor belt 15 and preventing powdery materials from adhering.

[0019] like Figures 1 to 5 As shown in this embodiment, it should also be noted that the actual dimensions of each component in the application document are selected and installed according to the actual needs of the site before implementation. Additionally, it should be noted that this application document only addresses the shortcomings of existing open-air belt conveyors, such as water accumulation and difficult-to-clean dust adhesion, and does not involve other aspects. The working principle of this type of wiper for belt conveyors is described below: When using this invention on-site, firstly, on-site personnel need to activate a pair of electric push rods 311 located inside the compartment, extending the rod of each electric push rod 311 to bring the rubber scraper 312 close to the surface of the conveyor belt 15, ensuring that the ends of the rubber scrapers 312 are pressed together to form a seal, facilitating the scraping of rainwater and dirt to the edge of the conveyor belt 15. Figure 6 .

[0020] If the rainwater is cleaned up at this time: On-site personnel installed the rubber scraper 312 by fastening the male buckle 310 on its side to the female buckle 319 on the side of the rotating rod 318. Then, the conveyor assembly 1 was started, causing the conveyor belt 15 to rotate. As the conveyor belt 15 rotates, the rubber scraper 312 scrapes rainwater from the conveyor belt 15 to the edge.

[0021] If you need to clean up dirt or residue at this time: On-site personnel installed the soft brush by connecting the side buckle 310 to the side buckle 319 of the rotating rod 318. Next, the DC servo motor 317 was started to drive the soft brush to rotate, using the rotating brush to brush away dirt or adhering substances from the surface of the conveyor belt 15. During this cleaning process, a stepper motor was started to drive the reciprocating screw 322 to rotate, simultaneously activating the power suction pump 302 inside the negative pressure box 326. The power suction pump 302 generated negative pressure suction, causing the reciprocating screw 322 to drive the sliding seat 323 and the suction cover 324 to move back and forth at a uniform speed. Under the combined action of the reciprocating motion of the suction cover 324 and the negative pressure suction, the scraped rainwater, dirt, or adhering substances were sucked in, achieving automatic cleaning. This design effectively removes dust and debris adhering to the conveyor belt 15, greatly reducing the burden of manual cleaning.

[0022] In addition, this solution also incorporates a spring device at the end of the electric push rod 311. When the rubber scraper 312 and the soft brush are attached to the conveyor belt 15, the spring device can adaptively adjust the pressure of the rubber scraper 312 and the soft brush on the conveyor belt 15, thereby preventing excessive pressure from causing abnormal wear on the surface of the conveyor belt 15.

[0023] A drying component 4 was also designed concurrently. After the conveyor belt 15 is cleaned, the electric heating element 44 and the blower 42 are activated. The electric heating element 44 generates heat, and the blower 42 blows hot air onto the surface of the conveyor belt 15, thereby quickly drying the surface of the conveyor belt 15 and preventing powdery materials from adhering.

[0024] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention 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 methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A wiper for a belt conveyor, comprising a conveying assembly (1), the conveying assembly (1) comprising a frame (11), a roller assembly and a conveyor belt (15) disposed on the roller assembly. Its features are, Also includes: The collection and processing chamber (2) is fixedly connected to one side of the frame (11). The opening of the collection and processing chamber (2) faces the conveying assembly (1), and a cleaning port is provided at the bottom of the collection and processing chamber (2). Cleaning mechanism (3) is used to remove residual moisture, dirt or adhesives from the surface of the conveyor belt (15); The cleaning mechanism (3) includes a squeegee assembly (31) and a negative pressure suction device (32). The wiper assembly (31) includes an electric push rod (311) fixedly installed on the top surface of the collection and treatment chamber (2) in a figure-eight shape, a spring device fixedly installed at the end of the rod of the electric push rod (311), and a rubber scraper (312) fixedly installed on the spring device. The negative pressure suction device (32) includes mounting seats (321) fixedly installed on the inner wall of the collection and processing chamber (2), reciprocating screws (322) rotatably set inside the two mounting seats (321), sliding seats (323) threaded on the reciprocating screws (322), and suction covers (234) fixedly installed on the side of the sliding seats (323). A negative pressure box (236) is fixedly installed on the top of the outer side of the collection and processing chamber (2), and a corrugated suction tube (337) is fixedly installed on the negative pressure box (336). The other end of the corrugated suction tube (337) is fixedly installed on the side of the suction cover (334).

2. The wiper for a belt conveyor according to claim 1, characterized in that, The spring device includes a compression seat (314), a plurality of compression springs (315) fixedly installed in the compression seat (314), and a compression block (316) provided at the port of the compression seat (314) and connected to the compression springs (315). The compression seat (314) is fixedly connected to the outside of a mounting ear (313). The end of the electric push rod (311) is fixedly installed in the port of the mounting ear (313) by a fixing bolt. A rubber scraper (312) is provided on the compression block (316).

3. A wiper for a belt conveyor according to claim 2, characterized in that, A DC servo motor (317) is fixedly mounted on the side of the compression block (316) via a bracket. The main shaft of the DC servo motor (317) is fixedly connected to a rotating rod (318). A row of female buckles (319) is fixedly mounted on the side of the rotating rod (318). A row of male buckles (310) is fixedly mounted on the side of the rubber scraper (312). The rubber scraper (312) is fixed to the rotating rod (318) via the male buckles (310) on the side.

4. A wiper for a belt conveyor according to claim 1, characterized in that, The negative pressure box (336) is provided with a connected barrier zone and a negative pressure zone. A barrier filter element (301) is fixedly installed in the barrier zone, and a power suction pump (302) is fixedly installed in the negative pressure zone.

5. A wiper for a belt conveyor according to claim 1, characterized in that, It also includes a drying assembly (4) for drying the conveyor belt (15); The drying assembly (4) includes a mounting frame (41) mounted on the frame (11) and close to the collection and processing chamber (2), a blower (42) fixedly mounted on the top surface of the mounting frame (41), an air guide channel (43) fixedly mounted in the port of the mounting frame (41), and an electric heating tube (44) fixedly mounted in the port of the air guide channel (43). A flange is provided on the top surface of the air guide channel (43), and the flange is fixedly connected to the output port of the blower (42).

6. A wiper for a belt conveyor according to claim 1, characterized in that, The roller assembly includes a group of auxiliary rollers (12) rotatably mounted on the frame (11), tension rollers (13) rotatably mounted in the ports on both sides of the frame (11), and pressure rollers (14). The conveyor belt (15) is laid on the auxiliary rollers (12), tension rollers (13) and pressure rollers (14).

7. A wiper for a belt conveyor according to claim 1, characterized in that, Guide rods (235) are fixedly installed on the inner sides of the two mounting seats (321) above the reciprocating screw (322), and the sliding seat (323) is movably sleeved on the guide rods (235).

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