Self-cleaning conveyor line

Abstract

The utility model relates to the technical field of material conveying, and specifically discloses a self-cleaning conveyor line, including a plurality of belt conveyors connected in sequence along the conveying direction, an automatic scraper is arranged below the belt conveyor, the automatic scraper includes a material receiving plate and a driving mechanism, the output end of the driving mechanism is connected with a scraper plate, the bottom of the scraper plate is slidably matched with the top of the material receiving plate, and the driving mechanism is used to drive the scraper plate to move along the conveying direction; a material guide port is provided at one end of the material receiving plate close to the discharging end of the belt conveyor, and a material guide hopper is connected to the bottom of the material guide port, and the discharging port of the material guide hopper is aligned with the feeding end of the downstream belt conveyor. The technical solution provided by the utility model can solve the technical problem that the prior art cleans the materials accumulated at the bottom of the belt after the conveying line is shut down, resulting in reduced production efficiency and increased production costs.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a self-cleaning conveying line. Background Art

[0002] A belt conveyor is a machine that relies on friction drive to transport materials. It can form a material conveying process from the initial feeding point to the final unloading point on a certain conveying line. The existing conveying line is composed of several belt conveyors connected together. When it is used to transport sticky materials (such as organic waste such as kitchen waste), the materials are easy to adhere to the conveying surface of the belt and follow the movement of the belt. When the conveying surface of the belt runs to the bottom, the conveying surface of the belt faces downward. The materials adhered to the conveying surface of the belt fall due to the vibration of the belt conveyor and the influence of its own gravity. The accumulation at the bottom of the belt is easy to cause belt wear, affecting the service life of the conveyor line. In addition, the space at the bottom of the belt is small and inconvenient to clean. The current cleaning method is to shut down the conveyor line and then clean it manually. Manual cleaning is inefficient and time-consuming. Long-term shutdown of the conveyor line leads to reduced production efficiency and increased production costs. Utility Model Content

[0003] The utility model aims to provide a self-cleaning conveyor line to solve the technical problem that the existing technology cleans the materials accumulated at the bottom of the belt after the conveyor line is shut down, resulting in reduced production efficiency and increased production costs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The self-cleaning conveyor line comprises a plurality of belt conveyors connected in sequence along the conveying direction, an automatic scraper is arranged under the belt conveyor, the automatic scraper comprises a material receiving plate and a driving mechanism, the output end of the driving mechanism is connected with the scraper plate, the bottom of the scraper plate is slidably matched with the top of the material receiving plate, and the driving mechanism is used to drive the scraper plate to move along the conveying direction; a material guide port is provided at one end of the material receiving plate close to the discharge end of the belt conveyor, the bottom of the material guide port is connected with a material guide hopper, and the discharge port of the material guide hopper is aligned with the feed end of the downstream belt conveyor.

[0006] The principle and beneficial effects of this program:

[0007] In actual application, the material falling to the bottom of the belt is caught by the receiving plate. The scraper plate is initially located at the feed end of the belt conveyor. When a certain amount of material is accumulated on the receiving plate, the driving mechanism is started to drive the scraper plate to move along the conveying direction. Since the bottom of the scraper plate slides with the top of the receiving plate, the material accumulated on the receiving plate can be scraped by the scraper plate to the material guide port, and then fall from the material guide port into the material guide hopper, and then fall from the discharge port of the material guide hopper to the feed end of the downstream belt conveyor; after the scraping is completed, the driving mechanism drives the scraper plate to return to the feed end of the belt conveyor to prepare for the next scraping.

[0008] 1. This solution uses a driving mechanism to drive the scraper plate to move along the conveying direction, so as to realize automatic cleaning of the accumulated materials on the receiving plate, and avoid excessive accumulation of materials on the receiving plate and contact with the belt, which causes belt wear. Compared with the prior art of stopping the conveyor line for manual cleaning, this solution not only has higher cleaning efficiency, but also does not need to stop the conveyor line, which is conducive to improving production efficiency and reducing production costs.

[0009] 2. This solution scrapes the material accumulated on the receiving plate to the material guide port, and guides the material accumulated on the receiving plate to the feed end of the downstream belt conveyor through the guide hopper, so that the material dropped on the upstream belt conveyor can continue to enter the downstream belt conveyor for transportation, thereby realizing the continuous transportation of dropped materials without setting up additional conveying and transfer equipment for the dropped materials, which is conducive to further improving production efficiency and reducing production costs.

[0010] Preferably, as an improvement, the driving mechanism includes two driving parts arranged corresponding to the feed end and the discharge end of the belt conveyor, the driving part includes a rotating driving member, a winding roller and a driving rope, the winding roller is transmission-connected to the output end of the rotating driving member, one end of the driving rope is fixedly connected to the winding roller, and the other end of the driving rope is fixedly connected to the scraper plate.

[0011] Beneficial effect: This solution can realize the winding of the driving rope by driving the winding roller to rotate through the rotating driving part, so that the driving rope pulls the scraper plate to move in the direction close to the winding roller. If the scraper plate moves in the direction close to the winding roller located at the discharge end of the belt conveyor, the material accumulated on the receiving plate can be scraped and sent to the material guide port to realize automatic cleaning of the fallen material. After the scraping is completed, the scraper plate moves in the direction of the winding roller located at the feed end of the belt conveyor to realize the reset of the scraper plate and prepare for the next scraping. When the winding roller of one driving unit winds up the driving rope, the winding roller of the other driving unit unwinds the driving rope synchronously to ensure the smooth movement of the scraper plate and the position stability during the movement, and can effectively avoid the entanglement of the wire rope with the material and other structures, ensuring the long-term stable operation of the conveyor line.

[0012] Preferably, as an improvement, the automatic scraper also includes a guiding mechanism, which includes guide rails arranged on both sides of the receiving plate along the conveying direction, a guide groove is opened on the side of the guide rail close to the scraper plate, and guide wheels are rotatably connected to both ends of the scraper plate, and the guide wheels are rollingly connected in the guide groove.

[0013] Beneficial effects: This solution can guide and limit the moving direction of the scraper plate through the cooperation of the guide wheel and the guide groove, ensuring that the moving path of the scraper plate is consistent with the preset scraping path, ensuring the scraping effect, and avoiding excessive accumulation of fallen materials on the receiving plate to cause belt wear. In addition, the guide roller is connected in a rolling manner in the guide groove, which can reduce friction and avoid jamming compared to the sliding connection, ensuring the smooth movement of the scraper plate.

[0014] Preferably, as an improvement, connecting shafts are provided at both ends of the scraper plate, and the guide wheel is rotatably connected to the connecting shafts through a bearing; an annular protrusion is provided on the outer peripheral wall of the guide wheel, and the annular protrusion abuts against the guide rail.

[0015] Beneficial effects: This solution realizes the rotational connection between the guide wheel and the scraper plate through the cooperation of the bearing and the connecting shaft. It has a simple structure and is easy to install and maintain. In addition, this solution sets an annular protrusion on the outer peripheral wall of the guide wheel, and makes the annular protrusion abut against the guide rail. The annular protrusions at both ends of the scraper plate can effectively limit the scraper plate to prevent the scraper plate from being offset due to the pulling force of the driving part or other external forces, causing the scraper plate to no longer be perpendicular to the conveying direction. Therefore, this solution can ensure that the scraper plate is always perpendicular to the conveying direction, and all the materials accumulated on the receiving plate are scraped into the guide port, avoiding the accumulation of materials in the vacuum area between the deflected scraper plate and the guide port, thereby improving the scraping effect.

[0016] Preferably, as an improvement, the guide mechanism also includes a rectangular connecting frame, the scraper plate is arranged in the connecting frame, the end of the drive rope away from the winding roller is fixedly connected to the connecting frame, the guide wheel is arranged on the connecting frame, and at least two guide wheels are provided on the side edge of the connecting frame corresponding to the guide rail along the conveying direction.

[0017] Beneficial effect: This scheme adds a rectangular connecting frame, sets the scraper plate in the connecting frame, and provides an installation position for at least two guide wheels set along the conveying direction; and at least two guide wheels are set on the side of the connecting frame along the conveying direction, which can further improve the position stability of the scraper plate, not only to avoid the scraper plate from offset, but also to avoid the scraper plate from rotating so that its bottom no longer slides with the top of the receiving plate. Therefore, this scheme can ensure that the bottom of the scraper plate always slides with the top of the receiving plate, and the material accumulated on the receiving plate is completely scraped off into the guide port, avoiding the situation where a layer of material remains on the receiving plate after the scraper plate scrapes the material, thereby further improving the scraping effect.

[0018] Preferably, as an improvement, connecting grooves are provided on the inner walls on both sides corresponding to the connecting frame, and the scraper plates are tension-inserted in the connecting grooves.

[0019] Beneficial effect: In this scheme, the scraper plate is tightened and inserted into the connecting groove on the inner wall of the connecting frame, so as to realize the detachable connection between the scraper plate and the connecting frame. When the scraper plate is worn after long-term use, so that its bottom cannot slide with the top of the receiving plate, the scraper plate can be further pressed downward so that the bottom of the scraper plate can slide with the top of the receiving plate again, or the scraper plate can be taken out of the connecting groove and replaced, which is convenient and quick to operate.

[0020] Preferably, as an improvement, a material drop opening is provided at one end of the receiving plate close to the feeding end of the belt conveyor, the size of the material drop opening matches the size of the connecting frame, and the bottom of the material drop opening is connected to a material drop hopper.

[0021] Beneficial effect: Due to the setting of the connecting frame, when the scraper plate scrapes the material accumulated on the receiving plate into the material guide port, some of the material may adhere to and remain between the connecting frame and the scraper plate. This solution opens a drop port at the end of the receiving plate corresponding to the feeding end of the belt conveyor. When the scraper plate completes scraping and resets, the scraper plate and the connecting frame are located above the drop port. The material adhered and remaining between the connecting frame and the scraper plate falls into the drop hopper through the drop port under the action of its own gravity. A collection container is placed at the discharge port of the drop hopper to collect this part of the material.

[0022] Preferably, as an improvement, baffle plates are provided on both sides of the material receiving plate along the conveying direction.

[0023] Beneficial effect: In this solution, baffle plates are arranged on both sides of the receiving plate along the conveying direction, which can prevent the materials accumulated on the receiving plate from falling from both sides of the receiving plate when being scraped by the scraper plate.

[0024] Preferably, as an improvement, a sealing cover is provided on the top of the belt conveyor, a transfer port is opened at the sealing cover corresponding to the feed end of the belt conveyor, and the discharge end of the upstream belt conveyor is aligned with the transfer port of the downstream belt conveyor.

[0025] Beneficial effects: This solution sets a sealing cover on the top of the belt conveyor to prevent materials from falling from the side of the belt conveyor during transportation. For special materials, such as organic waste with odor and dust that is easy to fly, the setting of the sealing cover can prevent the spread of odor and dust from flying, which is beneficial to protecting the environment.

[0026] Preferably, as an improvement, the top of the transfer port is connected to a transfer hopper, the discharge end of the upstream belt conveyor is aligned with the transfer hopper of the downstream belt conveyor, a part of the transfer hopper feed port is covered by the sealing cover of the upstream belt conveyor, and the other part of the transfer hopper feed port is covered with a sealing plate.

[0027] Beneficial effect: This scheme sets a transfer hopper at the connection between the upstream and downstream belt conveyors. The feed port of the transfer hopper is connected to the sealed environment of the upstream belt conveyor, and the discharge port of the transfer hopper is connected to the sealed environment of the downstream belt conveyor. The part of the feed port of the transfer hopper not covered by the sealing cover of the upstream belt conveyor is covered with a sealing plate. A completely sealed environment can be created at the connection between the upstream and downstream belt conveyors, preventing odor and dust from spreading from the connection between the upstream and downstream belt conveyors to the environment, thereby ensuring the sealing of the entire conveyor line. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the automatic scraper in Example 1 of the utility model.

[0030] Figure 3 for Figure 2 Top view of the .

[0031] Figure 4 It is a schematic diagram of the partial structure of the guide mechanism in Example 1 of the utility model.

[0032] Figure 5 This is a schematic diagram of the overall structure of Example 2 of the utility model. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The figure marks in the drawings of the specification include: belt conveyor 1, sealing cover 11, transfer hopper 12, sealing plate 13, automatic scraper 2, frame 21, receiving plate 22, material guide port 221, material guide hopper 222, material drop port 223, material drop hopper 224, driving mechanism 23, driving motor 231, winding roller 232, driving rope 233, guiding mechanism 24, guide rail 241, guide groove 242, connecting frame 243, guide wheel 244, connecting shaft 245, annular protrusion 246, scraper plate 25, material baffle plate 26.

[0035] Example 1

[0036] Self-cleaning conveyor line, as attached Figure 1 As shown, it includes a plurality of belt conveyors 1 connected in sequence along the conveying direction, and an automatic scraper 2 is provided under each belt conveyor 1.

[0037] like Figure 2 and Figure 3 As shown, the automatic scraper 2 includes a frame 21, a receiving plate 22 mounted on the frame 21, a driving mechanism 23 and a guiding mechanism 24. The receiving plate 22 is located directly below the belt conveyor 1, and the width of the receiving plate 22 is greater than the width of the belt of the belt conveyor 1 to ensure that all materials falling from the belt are caught. The output end of the driving mechanism 23 is connected to a scraper plate 25, which is vertically arranged, and the bottom of the scraper plate 25 is slidably matched with the top of the receiving plate 22. The driving mechanism 23 is used to drive the scraper plate 25 to move along the conveying direction.

[0038] The guide mechanism 24 includes guide rails 241 arranged on both sides of the receiving plate 22 along the conveying direction. A guide groove 242 is formed on one side of the guide rail 241 close to the scraper plate 25. In this embodiment, the guide rail 241 is a channel steel, and the guide rail 241 is fixedly connected to the frame 21. The guide mechanism 24 also includes a rectangular connecting frame 243 and a guide wheel 244. The scraper plate 25 is welded and fixed in the connecting frame 243. The guide wheel 244 is rotatably connected to the side of the connecting frame 243 corresponding to the guide rail 241. At least two guide wheels 244 are provided on one side of the connecting frame 243 along the conveying direction, and the guide wheel 244 is rollingly connected in the guide groove 242. Specifically, in combination with Figure 4 As shown, a connecting shaft 245 is fixedly connected to the outer wall of the connecting frame 243 , a bearing is interference fit on the connecting shaft 245 , and the guide wheel 244 is interference fit on the bearing to achieve a rotational connection between the guide wheel 244 and the connecting frame 243 .

[0039] An annular protrusion 246 is integrally formed on the outer peripheral wall of the guide wheel 244, and the annular protrusion 246 abuts against the guide rail 241. In this embodiment, the guide wheel 244 is truncated, and the diameter of the guide wheel 244 gradually increases from the guide rail 241 to the connecting frame 243, and the bottom wall of the guide groove 242 is also inclined to ensure that the outer peripheral wall of the guide wheel 244 fits the bottom wall of the guide groove 242, so as to adapt to a non-linear moving path.

[0040] The driving mechanism 23 includes two driving parts corresponding to the feed end and the discharge end of the belt conveyor 1, and the driving part includes a rotating driving member, a winding roller 232 and a driving rope 233. In this embodiment, the rotating driving member is a driving motor 231, and the winding roller 232 is connected to the output end of the rotating driving member through a worm gear transmission. One end of the driving rope 233 is fixedly connected to the winding roller 232, and the other end of the driving rope 233 is fixedly connected to the connecting frame 243.

[0041] The receiving plate 22 has a guide port 221 at one end close to the discharging end of the belt conveyor 1, and the bottom of the guide port 221 is sealed and connected to a guide hopper 222, and the discharging port of the guide hopper 222 is aligned with the feeding end of the downstream belt conveyor 1. The receiving plate 22 has a drop port 223 at one end close to the feeding end of the belt conveyor 1, and the size of the drop port 223 matches the size of the connecting frame 243, that is, the width of the drop port 223 is greater than the width of the connecting frame 243, so as to ensure that the material adhering to and remaining between the connecting frame 243 and the scraper plate 25 can fall into the drop port 223. The bottom of the drop port 223 is sealed and connected to a drop hopper 224, and the size of the drop hopper 224 gradually decreases from top to bottom to facilitate the centralized collection of materials.

[0042] Material baffle plates 26 are provided on both sides of the material receiving plate 22 along the conveying direction. The inner walls of the material baffle plates 26 are in contact with the side walls of the material receiving plate 22 , and the material baffle plates 26 are fixedly connected to the frame 21 .

[0043] The specific implementation process is as follows:

[0044] (1) Material receiving: When conveying sticky materials (such as organic waste such as kitchen waste), the materials tend to adhere to the conveying surface of the belt and move with the belt. When the conveying surface of the belt runs to the bottom, the conveying surface of the belt faces downward, and the materials adhered to the conveying surface of the belt fall due to the vibration of the belt conveyor 1 and its own gravity. The fallen materials are caught by the receiving plate 22.

[0045] (2) Scraping: Initially, the scraper plate 25 and the connecting frame 243 are located directly above the material outlet 223. When a certain amount of material is accumulated on the receiving plate 22, the two driving parts of the driving mechanism 23 are started. The driving part located at the discharge end, whose driving motor 231 drives the winding roller 232 to rotate forward, reels the driving rope 233, and the driving rope 233 pulls the scraper plate 25 to move toward the discharge end. At the same time, the driving part located at the feed end, whose driving motor 231 drives the winding roller 232 to rotate in the opposite direction, unwinds the driving rope 233 synchronously, to ensure the smooth movement of the scraper plate 25 and the stability of the moving process. The driving mechanism 23 drives the scraper plate 25 to move toward the discharge end, scrapes the material accumulated on the receiving plate 22 to the guide port 221, and the material falls into the guide hopper 222 through the guide port 221, and then slides to the feed end of the downstream belt conveyor 1 through the guide hopper 222, so as to realize the continuous transportation of the material.

[0046] (3) Reset: After the scraping is completed, the two driving parts of the driving mechanism 23 drive the scraper plate 25 to reset. Specifically, the driving part located at the feeding end, whose driving motor 231 drives the winding roller 232 to rotate forward, reels the driving rope 233, and the driving rope 233 pulls the scraper plate 25 to move toward the feeding end. At the same time, the driving part located at the discharging end, whose driving motor 231 drives the winding roller 232 to rotate reversely, unwinds the driving rope 233 synchronously, until the scraper plate 25 moves to the top of the blanking port 223. The materials adhered and remaining between the scraper plate 25 and the connecting frame 243 fall into the blanking port 223 under the action of their own gravity, and are then collected into the container through the blanking hopper 224.

[0047] Example 2

[0048] The self-cleaning conveyor line is different from the embodiment 1 in that: Figure 5 As shown, a sealing cover 11 is fixedly connected to the top of the belt conveyor 1, and a transfer port is opened on the sealing cover 11 corresponding to the position of the feeding end of the belt conveyor 1. The top of the transfer port is sealed and connected to a transfer hopper 12. The feeding port on the top of the transfer hopper 12 is covered with a sealing plate 13, and a through hole is opened on the sealing plate 13. The discharge end of the upstream belt conveyor 1 is aligned with the through hole of the downstream belt conveyor 1, and the sealing cover 11 of the upstream belt conveyor 1 covers the through hole of the downstream belt conveyor 1. The discharge port of the guide hopper 222 of the upstream belt conveyor 1 is sealed and connected to the sealing cover 11 of the downstream belt conveyor 1.

[0049] This solution can achieve sealed transportation of materials on the conveyor line. When conveying special materials, such as odorous organic waste and easily flying dust, it can prevent the odor and dust from spreading into the environment.

[0050] Example 3

[0051] The self-cleaning conveyor line differs from Embodiment 1 or 2 in that the scraper plate 25 and the connecting frame 243 are detachably connected. Specifically, the connecting frame 243 has connecting grooves on the inner walls on both sides parallel to the conveying direction in the vertical direction, and the cross-section of the connecting groove along the conveying direction is an inverted trapezoid, and the scraper plate 25 is tightened and inserted in the connecting groove.

[0052] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A self-cleaning conveyor line, comprising a plurality of belt conveyors connected in sequence along the conveying direction, characterized in that: An automatic scraper is provided under the belt conveyor, and the automatic scraper includes a material receiving plate and a driving mechanism. The output end of the driving mechanism is connected to the scraper plate, and the bottom of the scraper plate is slidably matched with the top of the material receiving plate. The driving mechanism is used to drive the scraper plate to move along the conveying direction; a material guide port is provided at one end of the material receiving plate close to the discharge end of the belt conveyor, and a material guide hopper is connected to the bottom of the material guide port, and the discharge port of the material guide hopper is aligned with the feed end of the downstream belt conveyor.

2. The self-cleaning conveyor line according to claim 1, characterized in that: The driving mechanism includes two driving parts arranged corresponding to the feeding end and the discharging end of the belt conveyor, the driving part includes a rotating driving member, a winding roller and a driving rope, the winding roller is transmission-connected to the output end of the rotating driving member, one end of the driving rope is fixedly connected to the winding roller, and the other end of the driving rope is fixedly connected to the scraper plate.

3. The self-cleaning conveyor line according to claim 2, characterized in that: The automatic scraper also includes a guide mechanism, which includes guide rails arranged on both sides of the receiving plate along the conveying direction, a guide groove is opened on one side of the guide rail close to the scraper plate, and guide wheels are rotatably connected to both ends of the scraper plate, and the guide wheels are rollingly connected in the guide groove.

4. The self-cleaning conveyor line according to claim 3, characterized in that: The two ends of the scraper plate are provided with connecting shafts, and the guide wheel is rotatably connected to the connecting shafts through bearings; an annular protrusion is provided on the outer peripheral wall of the guide wheel, and the annular protrusion is against the guide rail.

5. The self-cleaning conveyor line according to claim 3 or 4, characterized in that: The guide mechanism also includes a rectangular connecting frame, the scraper plate is arranged in the connecting frame, the end of the driving rope away from the winding roller is fixedly connected to the connecting frame, the guide wheel is arranged on the connecting frame, and at least two guide wheels are arranged on the side edge of the connecting frame corresponding to the guide rail along the conveying direction.

6. The self-cleaning conveyor line according to claim 5, characterized in that: The inner walls on both sides corresponding to the connection frame are provided with connection grooves, and the scraper plates are tensioned and inserted in the connection grooves.

7. The self-cleaning conveyor line according to claim 5, characterized in that: A material drop opening is provided at one end of the material receiving plate close to the feeding end of the belt conveyor, the size of the material drop opening matches the size of the connecting frame, and the bottom of the material drop opening is connected to a material drop hopper.

8. The self-cleaning conveyor line according to claim 6 or 7, characterized in that: Material blocking plates are arranged on both sides of the material receiving plate along the conveying direction.

9. The self-cleaning conveyor line according to claim 8, characterized in that: A sealing cover is provided on the top of the belt conveyor, and a material transfer port is opened at a position of the sealing cover corresponding to the feeding end of the belt conveyor, and the discharging end of the upstream belt conveyor is aligned with the material transfer port of the downstream belt conveyor.

10. The self-cleaning conveyor line according to claim 9, characterized in that: The top of the transfer port is connected to a transfer hopper, the discharge end of the upstream belt conveyor is aligned with the transfer hopper of the downstream belt conveyor, a part of the transfer hopper feed port is covered by the sealing cover of the upstream belt conveyor, and the other part of the transfer hopper feed port is covered by a sealing plate.

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