Concrete batching plant inner wall cleaning device

Abstract

The invention discloses an inner wall cleaning device for a concrete batching machine. The inner wall cleaning device comprises a stirring barrel, a stirring motor, a lifting motor, a stirring roller, a scraping ring and a screw rod, the stirring barrel comprises a top cover and a containing cavity, the stirring roller, the scraping ring and the screw rod are arranged in the containing cavity, and the screw rod is connected with the scraping ring; the stirring motor is arranged in the center of the top cover, and a rotor of the stirring motor penetrates into the accommodating cavity and is connected with the stirring roller; the scraping ring is attached to the wall of the containing cavity, the lifting motor is arranged on the edge of the top cover, a rotor of the lifting motor penetrates into the containing cavity to be connected with the screw, and the lifting motor drives the scraping ring to ascend and descend in the mode of being attached to the wall of the containing cavity through the screw. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

[Technical Field] This invention mainly relates to a device for cleaning the inner wall of a concrete batching machine. [Background Technology] Existing concrete batching machines often experience concrete material buildup on the inner wall of the mixing drum during operation, affecting the accuracy of the batching ratio and causing material waste. Traditional cleaning methods rely on manual shoveling or rinsing after the machine stops, which is cumbersome, inefficient, and prone to hardening and clumping of residual material in cold environments, further increasing the cleaning difficulty. Furthermore, some mechanical cleaning devices suffer from wear-prone scrapers, poor contact with the drum wall, and incomplete cleaning coverage, making it difficult to achieve simultaneous cleaning during the mixing process, thus affecting production continuity and cleaning effectiveness. Therefore, there is an urgent need for a device that can automatically and efficiently clean the inner wall of the machine during mixing. [Summary of the Invention] To address at least one of the aforementioned problems, this invention proposes a novel structural solution. The concrete batching machine inner wall cleaning device employs the following technical solution: A device for cleaning the inner wall of a concrete batching machine includes a mixing drum, a mixing motor, a lifting motor, a mixing roller, a scraper ring, and a screw. The mixing tank includes a top cover and a cavity. The mixing roller, scraper ring, and screw are placed inside the cavity, and the screw is connected to the scraper ring. The mixing motor is located at the center of the top cover, and the rotor of the mixing motor passes through the cavity and is connected to the mixing roller. The scraper ring is attached to the wall of the cavity. The lifting motor is located at the edge of the top cover, and the rotor of the lifting motor passes through the cavity and is connected to the screw. The lifting motor drives the scraper ring to rise and fall along the wall of the cavity through the screw.

[0004] Preferably, the lifting motors are located on both sides of the mixing tank.

[0005] Preferably, the scraper ring includes a ring body, a scraper blade, and a spring, and the ring body is provided with a screw hole for connection of a screw rod.

[0006] Preferably, the ring body includes a flat plate portion and a vertical ring portion, the flat plate portion is located in the middle of the vertical ring portion, and the screw hole of the ring body is located in the flat plate portion.

[0007] Preferably, the vertical ring portion has openings at both ends, and the openings are arranged in a circular pattern along the circumference of the vertical ring portion.

[0008] Preferably, the flat plate portion is provided with an arc groove near the vertical ring portion, the end of the scraper extends into the arc groove, the spring is placed in the arc groove, one end of the spring is fixed in the arc groove, and the other end is connected to the end of the scraper. The spring and the scraper are connected to push the beginning of the scraper to keep it in contact with the wall of the cavity. The arc groove has an open end, and the beginning of the scraper passes through the open end of the arc groove and connects to the opening.

[0009] Preferably, the thickness of the scraper gradually decreases from its end to its beginning.

[0010] Preferably, the first end of the scraper is curved upward relative to the last end, and the first ends of the scrapers that pass through both ends of the vertical ring are curved in opposite directions.

[0011] Preferably, the opening is provided with a column, and the scraper is provided with a long strip groove. The column and the long strip groove are connected to limit the range of motion of the scraper.

[0012] Preferably, the beginning of the scraper blade extends to both sides in a V-shape to reduce the distance between the beginnings of the scraper blade.

[0013] The beneficial effects of this invention compared to the prior art are as follows: This invention utilizes a scraper ring driven by a lifting motor and moving up and down along a screw, in conjunction with scraper blades featuring an elastic compensation structure. This enables continuous scraping of material adhering to the inner wall of the mixing tank during the mixing process, completing cleaning without stopping the machine, significantly improving cleaning efficiency and reducing material waste. The scraper blades are automatically kept in close contact with the tank wall by springs, and even with wear, real-time compensation ensures long-term stable cleaning results. Furthermore, the scraper blades feature an upward-curving tip and a V-shaped extension design, adapting to the cleaning needs of the scraper ring's bidirectional movement and effectively covering the circumference of the tank wall, reducing cleaning dead zones. The overall structural layout is reasonable, with mixing and cleaning operations not interfering with each other. This not only avoids material clumping caused by stopping for cleaning but also improves the equipment's continuous operation capability and ease of maintenance. It boasts advantages such as simple structure, convenient operation, small size for portability, and reasonable design; therefore, it is a product with superior technical and economic performance. [Attached Image Description] Figure 1 A schematic diagram of the concrete batching machine inner wall cleaning device in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the concrete batching machine inner wall cleaning device in a preferred embodiment of the present invention. Figure 3 This is a schematic diagram of the scraper ring being attached to the cavity wall in a preferred embodiment of the present invention. Figure 4 This is a schematic diagram showing the connection between the scraper and the open column in a preferred embodiment of the present invention.

Detailed Implementation Methods

[0016] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0017] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.

[0018] The preferred embodiments provided by the present invention are as follows: Figures 1-4 As shown, a concrete batching machine inner wall cleaning device includes a mixing drum 1, a mixing motor 2, a lifting motor 3, a mixing roller 4, a scraper ring 5, and a screw 6. The mixing roller and screw can be conventional products.

[0019] The mixing tank 1 includes a top cover 11 and a cavity. The mixing roller 4, scraper ring 5, and screw 6 are placed inside the cavity, and the screw 6 is connected to the scraper ring 5. The mixing motor 2 is located at the center of the top cover 11, and the rotor of the mixing motor 2 passes through the cavity and is connected to the mixing roller 4. The scraper ring 5 is attached to the wall of the cavity. The lifting motor 3 is located at the edge of the top cover 11, and the rotor of the lifting motor 3 passes through the cavity and is connected to the screw 6. The lifting motor 3 drives the scraper ring 5 to rise and fall along the wall of the cavity through the screw 6, so as to scrape off the raw materials attached to the wall of the cavity.

[0020] The lifting motors 3 are respectively located on both sides of the mixing tank 1 to restrict the scraper ring 5 to rise or fall only under the drive of the lifting motors 3. The number of screws 6 corresponds to the number of lifting motors 3.

[0021] The scraper ring 5 includes a ring body 51, a scraper blade 52 and a spring 53. The ring body 51 is provided with a screw hole 54 for the screw rod 6 to connect.

[0022] The ring body 51 includes a flat plate portion 55 and a vertical ring portion 56. The flat plate portion 55 is located in the middle of the vertical ring portion 56. The screw hole 54 of the ring body 51 is located in the flat plate portion 55, meaning that the vertical ring portion 56 protrudes from the upper and lower end faces of the flat plate portion 55. Openings 57 are provided at both ends of the vertical ring portion 56, arranged circumferentially along the vertical ring portion 56. An arc groove 58 is provided near the vertical ring portion 56 on the flat plate portion 55, with each opening 57 corresponding to a single arc groove 58. The end of the scraper 52 extends into the arc groove 58, and a spring 53 is placed within the arc groove 58. One end of the spring 53 is fixed to the arc groove 58, and the other end is connected to the end of the scraper 52. The spring 53 connects with the scraper 52 to push the beginning of the scraper 52 to remain in contact with the wall of the cavity. The arc groove 58 has an open end, through which the beginning of the scraper 52 protrudes and connects to the opening 57.

[0023] The thickness of the scraper blade 52 gradually decreases from its end to its beginning to increase the contact area with the spring 53. Simultaneously, the overall gradual thickness design of the scraper blade 52 increases its weight, improves stability, and makes it less prone to bending under stress. The beginning of the scraper blade 52 curves upward relative to its end, while the beginnings of the scraper blades 52 that pass through both ends of the vertical ring 56 curve in the opposite direction, ensuring cleaning can be performed even when the scraper ring 5 moves up and down. The beginnings of the scraper blades 52 extend outward in a V-shape to reduce the gap between the beginnings of the scraper blades 52, ensuring maximum coverage of the inner circumference of the cavity.

[0024] The opening 57 is provided with a column 59, and the scraper 52 is provided with a long strip groove 60. The column 59 is connected to the long strip groove 60 to limit the range of motion of the scraper 52. The design of the long strip groove 60 allows the scraper 52 to continue to extend after the first end is worn.

[0025] Working principle: The stirring motor 2 drives the stirring roller 4 to stir within the cavity. Raw materials and splashed material adhere to the inner wall of the cavity. The lifting motor 3 starts, and because the two sides of the scraper ring 5 are connected by screws 6, the scraper ring 5 can only move up and down under the drive of the lifting motor 3. Since the removal of adhering materials is achieved through continuous contact and scraping between the tip of the scraper blade 52 and the cavity wall, the tip of the scraper blade 52 will wear down over time, causing it to lose contact with the cavity wall and affecting the cleaning effect. Therefore, this structure adds a spring 53. Even if the tip of the scraper blade 52 is worn, the spring 53 will push the end of the scraper blade 52, keeping the tip of the scraper blade 52 in contact with the cavity wall, ensuring the scraping effect removes the adhering materials from the cavity wall. The lifting motor 3 and the stirring motor 2 operate independently. The scraper ring 5 is located at the edge of the mixing tank 1, and the stirring roller 4 does not extend to the scraper ring 5. The movement of the scraper ring 5 does not affect the stirring. Therefore, it is possible to remove the deposits on the cavity wall while stirring, and avoid the clumps that are more difficult to remove after the machine stops due to cooling.

[0026] This invention utilizes a scraper ring driven by a lifting motor and moving up and down along a screw, in conjunction with scraper blades featuring an elastic compensation structure. This enables continuous scraping of material adhering to the inner wall of the mixing tank during the mixing process, completing cleaning without stopping the machine, significantly improving cleaning efficiency and reducing material waste. The scraper blades are automatically kept in close contact with the tank wall by springs, and even with wear, real-time compensation ensures long-term stable cleaning results. Furthermore, the scraper blades feature an upward-curving tip and a V-shaped extension design, accommodating the cleaning needs of the scraper ring's bidirectional movement and effectively covering the circumference of the tank wall, reducing cleaning dead zones. The overall structural layout is reasonable, ensuring that mixing and cleaning operations do not interfere with each other. This not only avoids material clumping caused by downtime for cleaning but also improves the equipment's continuous operation capability and ease of maintenance.

[0027] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Based on the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on the present invention all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A concrete batch plant inner wall cleaning device, characterized by: It includes a stirring barrel, a stirring motor, a lifting motor, a stirring roller, a scraping ring and a screw rod. The stirring barrel comprises a top cover and a cavity, the stirring roller, the scraping ring and the screw rod are arranged in the cavity, the screw rod is connected with the scraping ring, the stirring motor is arranged at the center of the top cover, the rotor of the stirring motor penetrates into the cavity and is connected with the stirring roller, the scraping ring is attached to the wall of the cavity, the lifting motor is arranged at the edge of the top cover, the rotor of the lifting motor penetrates into the cavity and is connected with the screw rod, and the lifting motor drives the scraping ring to ascend and descend along the wall of the cavity through the screw rod.

2. A concrete batch plant inner wall cleaning device as claimed in claim 1, wherein: The lifting motor is arranged at two sides of the stirring barrel.

3. A concrete batch plant inner wall cleaning device as in claim 1, wherein: The scraping ring comprises a ring body, a scraping piece and a spring, the ring body is provided with a screw hole for connecting the screw rod.

4. A concrete batch plant inner wall cleaning device as claimed in claim 3, wherein: The ring body comprises a flat plate part and a vertical ring part, the flat plate part is arranged at the middle position of the vertical ring part, and the screw hole of the ring body is arranged on the flat plate part.

5. A concrete batch plant inner wall cleaning device as claimed in claim 4, wherein: The vertical ring part is provided with an opening at each end, and the openings are arranged along the circumference of the vertical ring part.

6. A concrete batch plant inner wall cleaning device as claimed in claim 4, wherein: The flat plate part is provided with an arc groove near the vertical ring part, the tail end of the scraping piece extends into the arc groove, the spring is arranged in the arc groove, one end of the spring is fixed in the arc groove, the other end is connected with the tail end of the scraping piece, and the spring and the scraping piece are connected to push the head end of the scraping piece to be attached to the wall of the cavity. The arc groove has an open end, and the head end of the scraping piece extends out of the open end of the arc groove and is connected to the opening.

7. A concrete batch plant inner wall cleaning device according to claim 3 or 6, characterized in that: The thickness of the scraping piece gradually decreases from the tail end to the head end.

8. A concrete batch plant inner wall cleaning device as claimed in claim 7, wherein: The head end of the scraping piece is upturned relative to the tail end, and the head ends of the scraping pieces connected to the two ends of the vertical ring part are oppositely upturned.

9. A concrete batch plant inner wall cleaning device as claimed in claim 5 or 6, wherein: The opening is provided with a column, and the scraping piece is provided with a long groove, the column and the long groove are connected to limit the movement range of the scraping piece.

10. A concrete batch plant inner wall cleaning device as in claim 3, wherein: The head end of the scraping piece is in an eight-shaped form and extends to both sides to reduce the distance between the head ends of the scraping piece.

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