Reinforcing steel bar granulator

By integrating a cleaning box and a pelletizing box into a rebar pelletizer, the cutting and cleaning of rebars are achieved using a drive structure and a mixing rod, solving the problem of cleaning oil stains and dust from the surface of the rebars after cutting and improving the efficiency of rebar reuse.

CN223762038UActive Publication Date: 2026-01-06CHONGQING CHANGCHENG RENEWABLE RESOURCES CO LTD
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Patent Information

Application Number
CN202520200748.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-06
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing rebar pelletizers leave oil stains and dust on the surface of the cut rebar, making cleaning difficult and affecting reuse efficiency.

Method used

A steel bar pelletizer was designed, comprising a cleaning chamber and a pelletizing chamber. The pelletizing shaft is equipped with a pelletizing blade, which is driven by a drive structure to rotate and cut the steel bars. The steel bars are simultaneously cleaned in the cleaning chamber, and the steel bar particles are thoroughly cleaned by a stirring rod and a lever.

Benefits of technology

It enables efficient cutting and cleaning of steel bars, simplifies the reuse process, and improves the efficiency and quality of steel bar recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reinforcing steel bar granulator, which relates to machining equipment, and comprises a cleaning box body and a granulating box body fixed at the top of the cleaning box body, the cleaning box body is communicated with the granulating box body, the inner side of the granulating box body is rotatably connected with a granulating rotating shaft, and the outer side of the granulating rotating shaft is uniformly distributed and fixedly connected with a plurality of groups of granulating blades; guide blocks are symmetrically and fixedly connected to the two sides of the inner wall of the pelletizing box body, the section of each guide block is in a V shape, a plurality of through grooves matched with the pelletizing blades are evenly formed in each guide block, a gap is formed in the side, close to the pelletizing rotating shaft, of each guide block and used for allowing cut granular steel bars to fall into the cleaning box body, and the pelletizing rotating shaft is in transmission connection with a driving structure. When in use, the pelletizing device is driven by the motor to drive the pelletizing blades to rotate, so that the cutting processing of the reinforcing steel bars is realized, and meanwhile, the pelletized reinforcing steel bars can be synchronously cleaned in the cleaning box body after entering the cleaning box body through gaps between the pelletizing box bodies, so that the reinforcing steel bars can be directly recycled in the next step.
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Description

Technical Field

[0001] This utility model relates to a mechanical processing equipment, specifically a steel bar pelletizer. Background Technology

[0002] Due to the limited availability of steel resources and the high cost of iron ore refining, the recycling of scrap steel is receiving increasing attention. Scrap steel bars are inconvenient to transport and remelt due to their excessive length, and manually cutting them into smaller pieces is time-consuming and labor-intensive; therefore, steel bar pelletizers have emerged to address this need.

[0003] Existing rebar pelletizers are mainly purchased by scrap steel mills and are mostly large-scale equipment used to cut rebar in batches for easy remelting. However, after pelletizing, the rebar often has oil stains and dust on its surface, requiring further cleaning for recycling. Therefore, those skilled in the art have proposed a rebar pelletizer to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this utility model is to provide a steel bar pelletizer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rebar pelletizing machine includes a cleaning chamber and a pelletizing chamber fixed to the top of the cleaning chamber. The cleaning chamber and the pelletizing chamber are connected. A pelletizing shaft is rotatably connected to the inner side of the pelletizing chamber. Several sets of pelletizing blades are evenly distributed and fixedly connected to the outer side of the pelletizing shaft. Guide blocks are symmetrically fixedly connected to both sides of the inner wall of the pelletizing chamber. The guide blocks have a V-shaped cross-section and several through grooves evenly distributed on the guide blocks to cooperate with the pelletizing blades. A gap is provided on the side of the guide block near the pelletizing shaft for the cut granular rebar to fall into the cleaning chamber. The pelletizing shaft is connected to a drive structure for transmission.

[0007] As a further embodiment of this utility model: the drive structure includes a motor bracket fixedly connected to the cleaning box, a drive motor fixedly connected to the motor bracket, a cleaning shaft fixedly connected to the rotor of the drive motor, a drive wheel fixedly connected to the outside of the cleaning shaft, the drive wheel being located outside the cleaning box, a driven wheel fixedly connected to the outer end of the pelletizing shaft, and a transmission connection between the drive wheel and the driven wheel.

[0008] As a further embodiment of this utility model: the cleaning shaft is rotatably connected to the cleaning box, and stirring rods are evenly distributed and fixedly connected to the outer side of the cleaning shaft, with a lever fixedly connected to the outer end of the stirring rod.

[0009] As a further improvement of this utility model, the cleaning box is provided with a discharge port for discharging the cut steel bar particles.

[0010] As a further improvement of this utility model, the driving wheel and the driven wheel are driven by a sprocket structure.

[0011] As a further improvement of this invention, the height of the guide block on the side closer to the pelletizing shaft is lower than that on the side farther from the pelletizing shaft.

[0012] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and is easy to use. When in use, it is driven by a motor, which can drive the cutting blade to rotate, thereby realizing the cutting of steel bars. At the same time, the steel bars in pellet form can be cleaned inside the cleaning box after passing through the gap between the pelletizing boxes, which facilitates the steel bars to directly enter the next step of reuse, and the use effect is good. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a steel bar pelletizer;

[0014] Figure 2 This is a partial cross-sectional structural schematic diagram of a steel bar pelletizing machine;

[0015] Figure 3 This is a structural schematic diagram of a steel bar pelletizer from another perspective;

[0016] Figure 4 This is a partial structural diagram of the pelletizing box of a steel bar pelletizer;

[0017] Figure 5 This is a partial cross-sectional structural diagram of the pelletizing box of a steel bar pelletizer.

[0018] In the diagram: 1. Cleaning chamber; 2. Pelletizing chamber; 3. Pelletizing shaft; 4. Pelletizing blade; 5. Guide block; 6. Through groove; 7. Drive structure; 8. Motor bracket; 9. Drive motor; 10. Cleaning shaft; 11. Drive wheel; 12. Driven wheel; 13. Stirring rod; 14. Paddle lever. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "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 refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 utility model based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example 1: Please refer to Figure 1-5 A rebar pelletizing machine includes a cleaning chamber 1 and a pelletizing chamber 2 fixed to the top of the cleaning chamber 1. The cleaning chamber 1 and the pelletizing chamber 2 are connected. A pelletizing shaft 3 is rotatably connected to the inner side of the pelletizing chamber 2. Several sets of pelletizing blades 4 are evenly distributed and fixedly connected to the outer side of the pelletizing shaft 3. Guide blocks 5 are symmetrically fixedly connected to both sides of the inner wall of the pelletizing chamber 2. The guide blocks 5 have a V-shaped cross section. Several through grooves 6 that cooperate with the pelletizing blades 4 are evenly distributed on the guide blocks 5. A gap is provided on the side of the guide blocks 5 near the pelletizing shaft 3 for the cut granular rebar to fall into the cleaning chamber 1. The pelletizing shaft 3 is connected to a drive structure 7.

[0024] When using this utility model, the drive structure 7 is activated, and then the steel bar to be cut is placed inside the pelletizing box 2. Under the action of the steel bar's own weight, the steel bar will slide down along the surface of the guide block 5 to the bottom of the V-shape. Then, the cutting flow ring 3 will drive the pelletizing blade 4 to rotate, and in cooperation with the guide block 5, it will cut the steel bar into pellets. The cut steel bar pellets will fall into the cleaning box 1 through the gaps, and then be cleaned.

[0025] The drive structure 7 includes a motor bracket 8 fixedly connected to the cleaning box 1, a drive motor 9 fixedly connected to the motor bracket 8, a cleaning shaft 10 fixedly connected to the rotor of the drive motor 9, a drive wheel 11 fixedly connected to the outside of the cleaning shaft 10, the drive wheel 11 being located outside the cleaning box 1, and a driven wheel 12 fixedly connected to the outer end of the pelletizing shaft 3, with a transmission connection between the drive wheel 11 and the driven wheel 12.

[0026] The cleaning shaft 10 is rotatably connected to the cleaning box 1. Stirring rods 13 are evenly distributed and fixedly connected to the outer side of the cleaning shaft 10, and a lever 14 is fixedly connected to the outer end of the stirring rod 13.

[0027] By adding cleaning fluid inside the cleaning chamber 1, the steel rebar particles that fall into the Qinxi Township Pond 1 will be cleaned. The drive motor 9 rotates, which drives the cleaning shaft 10 to rotate, which in turn drives the stirring rod 13 and the lever 14 on the outside of the stirring rod 13 to rotate. The lever 14 drives the steel rebar particles to move, achieving thorough cleaning. A small gap is left between the lever 14 and the side wall of the cleaning chamber 1 to prevent the steel rebar particles from sinking to the bottom and being located in the gap between the bottom of the cleaning chamber 1 and the lever 14, thus preventing them from being thoroughly cleaned.

[0028] The cleaning chamber 1 has a discharge port for discharging the chopped steel rebar particles. The cleaned steel rebar particles are discharged through the discharge port, which can be located on the side wall of the cleaning chamber 1 near the bottom. This allows the material to be discharged when the lever 14 is turned on. This also prevents the steel rebar particles from being unable to be cleaned if the discharge port is located at the bottom. A sealing cover is provided on the outside of the discharge port to ensure a seal during the cleaning process and prevent leakage of the cleaning fluid.

[0029] Example 2: This example improves upon the previous example by the following: the driving wheel 11 and the driven wheel 12 are driven by a sprocket structure. Alternatively, other transmission structures can be used, such as direct transmission via meshing gear sets. The sprocket structure ensures torque transmission. Belt drives are prone to slippage and are therefore only suitable for reinforcing bars with low shear strength.

[0030] The guide block 5 is positioned lower on the side closer to the cutting shaft 3 than on the side farther from the cutting shaft 3. This allows the reinforcing bar to be positioned lower, preventing it from being cut too high and potentially ejected under shearing force, which could cause damage. A protective cover can also be installed to prevent injury. When the reinforcing bar is on the non-shearing side, as the cutting shaft 3 rotates, multiple cutting blades 4 will move the reinforcing bar towards the cutting side.

[0031] Working Principle: When using this invention, the drive structure 7 is activated, and the steel bars to be cut are placed inside the pelletizing box 2. Under the weight of the steel bars, they slide down the surface of the guide block 5 to the bottom of the V-shape. Then, the cutting flow ring 3 drives the pelletizing blade 4 to rotate, and in cooperation with the guide block 5, the steel bars are pelletized. The cut steel bar pellets fall into the cleaning box 1 through the gaps and are then cleaned. By adding cleaning fluid into the cleaning box 1, the steel bar pellets that fall into the cleaning box 1 are cleaned. The drive motor 9 rotates, driving the cleaning shaft 10 to rotate, which in turn drives the stirring rod 13 and the lever 14 on the outside of the stirring rod 13 to rotate. The lever 14 moves the steel bar pellets, achieving thorough cleaning. A small gap is left between the lever 14 and the side wall of the cleaning box 1 to prevent the steel bar pellets from sinking to the bottom and being located in the gap between the bottom of the cleaning box 1 and the lever 14, thus preventing them from being thoroughly cleaned.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforcing bar pelletizer comprising a cleaning cabinet (1) and a pelletizing cabinet (2) fixed to the top of the cleaning cabinet (1), characterized in that, The cleaning box (1) is communicated with the cutting box (2), the cutting box (2) is rotatably connected with the cutting shaft (3) on the inside, a plurality of groups of cutting blades (4) are fixedly connected on the outside of the cutting shaft (3), the cutting box (2) is fixedly connected with the guide block (5) on the two sides of the inner wall, the cross section of the guide block (5) is V-shaped, a plurality of through grooves (6) matched with the cutting blades (4) are uniformly arranged on the guide block (5), a gap is arranged on the side of the guide block (5) close to the cutting shaft (3), for the cut granular steel to fall into the cleaning box (1), the cutting shaft (3) is drivingly connected with the driving structure (7).

2. The rebar granulator of claim 1, wherein, The driving structure (7) comprises a motor support (8) fixedly connected with the cleaning box (1), a driving motor (9) fixedly connected on the motor support (8), a cleaning shaft (10) fixedly connected on the rotor of the driving motor (9), a driving wheel (11) fixedly connected on the outside of the cleaning shaft (10), the driving wheel (11) is located on the outside of the cleaning box (1), a driven wheel (12) fixedly connected on the outer end of the cutting shaft (3), and the driving wheel (11) and the driven wheel (12) are drivingly connected.

3. The rebar granulator of claim 2, wherein, The cleaning shaft (10) is rotatably connected with the cleaning box (1), a plurality of stirring rods (13) are fixedly connected on the outside of the cleaning shaft (10), and a stirring rod (14) is fixedly connected on the outer end of the stirring rod (13).

4. A rebar granulator according to any one of claims 1-3, characterized in that, The cleaning box (1) is internally provided with a discharge port for discharging the cut steel particles.

5. The rebar granulator of claim 2, wherein, The driving wheel (11) and the driven wheel (12) are drivingly connected through a chain wheel structure.

6. The rebar granulator of claim 1, wherein, The side of the guide block (5) close to the cutting shaft (3) is lower than the side away from the cutting shaft (3).