Self-cleaning loose material needle for sintering machine
The design of the self-cleaning loosening needles enables synchronous reciprocating rotation of the loosening needles in the sintering machine, solving the problem of material accumulation, improving the stability and efficiency of the sintering process, simplifying equipment maintenance, and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING IRON & STEEL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-10
Smart Images

Figure CN224480047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sintering machine technology, specifically to a self-cleaning loosening needle for a sintering machine. Background Technology
[0002] Sintering technology is widely used in industries such as metallurgy, chemicals, and ceramics to sinter powdered materials into dense solid materials at high temperatures. During the sintering process, to prevent materials from adhering to or accumulating on the equipment surface due to temperature increases, loosening needles are often used to loosen and clean the material. The design and performance of the loosening needles directly affect the material flowability, sintering efficiency, and equipment stability during the sintering process.
[0003] However, in practical applications, material accumulation is prone to occur on the sintering machine's loosening pins, especially under high temperature, high pressure, and high load conditions. Material accumulation affects the flatness of the sintering material distribution, thus compromising the stability of the sintering process. Since the function of the loosening pins within the sintering machine is to loosen the material and promote its flow, material accumulation not only affects the uniform distribution of the material but also leads to equipment blockage, causing uneven heat distribution and further reducing sintering efficiency and product quality.
[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a self-cleaning loosening needle for a sintering machine, which solves the above technical problems. Summary of the Invention
[0005] The technical objective of this invention is to provide a sintering machine loosening needle with a self-cleaning function. By synchronously driving the needle body to rotate back and forth, it effectively avoids material accumulation, improves the stability of the sintering process, and reduces the need for frequent cleaning.
[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution:
[0007] The self-cleaning loosening needle for sintering machine provided by this utility model includes a fixed bracket, on which multiple needles are linearly arrayed. One end of each needle is cylindrical, and the cylindrical end of the needle is rotatably mounted on the fixed bracket. A driving cleaning component is also installed at one end of each of the multiple needles. The driving cleaning component is used to synchronously drive all the needles to reciprocate.
[0008] The drive cleaning assembly includes: driven gears mounted on one end of multiple needle cylinders, the driven gears being arranged linearly; a drive rack meshing with the multiple driven gears, the drive rack being used to synchronously drive all the driven gears; and a drive gear meshing with the drive rack, the drive gear being connected to a drive shaft, the drive shaft being externally connected to a drive motor.
[0009] The fixed bracket is connected to multiple connecting sleeves corresponding to the needle body, and the connecting sleeves are sleeved on the cylinder of the needle body.
[0010] Furthermore, a spacer boss is installed between the connecting sleeve and the driven gear on the needle body.
[0011] Furthermore, the spacer protrusion is cylindrical and is fixedly mounted on the needle body.
[0012] Furthermore, the outer diameter of the spacer boss is larger than the outer diameter of the connecting sleeve but smaller than the root circle diameter of the driven gear.
[0013] Based on the above, the fixed bracket and the connecting sleeve are connected by a connecting bracket, and multiple connecting brackets are arranged linearly.
[0014] The two ends of the drive rack are slidably mounted on the sintering machine; the fixed bracket is fixedly mounted on the sintering machine.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. This utility model achieves synchronous reciprocating rotation of the needles by mounting multiple needles on a fixed bracket and equipping one end of the cylindrical body of each needle with a drive cleaning component. The reciprocating rotation of the needles can effectively prevent the formation of material accumulation. The self-cleaning mechanism keeps the loosening needles clean during the working process, thereby avoiding the impact of material accumulation on the flatness of the sintering fabric, ensuring the stability of the sintering process, improving sintering efficiency, and guaranteeing the quality of the final product.
[0017] 2. This utility model achieves synchronous reciprocating rotation of the needle body through the cooperation of the drive rack and gear, ensuring the consistency of the cleaning effect of all loose needles. The synchronous drive design improves the cleaning efficiency, avoids the phenomenon of material accumulation caused by incomplete cleaning of a single needle body, and further enhances the overall cleaning effect of the equipment.
[0018] 3. This utility model also provides a connecting sleeve corresponding to the needle body on the fixed bracket. The connecting sleeve is sleeved on the cylinder of the needle body, and a spacer boss is provided between the connecting sleeve and the driven gear. The spacer boss is fixed on the needle body to ensure structural stability. At the same time, it simplifies the installation and maintenance process of the loosening needle. The use of the connecting sleeve and the spacer boss reduces component wear and failure rate, making equipment maintenance more convenient, reducing downtime and the need for manual cleaning, and reducing overall operating costs. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which:
[0021] Figure 1 This is a schematic diagram of the present invention;
[0022] Figure 2 This is a cross-sectional view of the utility model.
[0023] In the diagram: 1. Fixed bracket; 2. Needle body; 3. Driven gear; 4. Drive rack; 5. Drive gear; 6. Drive shaft; 7. Connecting sleeve; 8. Spacer boss; 9. Connecting bracket. Detailed Implementation
[0024] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0025] Example 1:
[0026] like Figure 1 and Figure 2 As shown, multiple needles 2 are linearly arrayed on a fixed support 1. One end of the cylinder of each needle 2 is mounted in the fixed support 1 via a rotating shaft, ensuring that the needle 2 can rotate freely and reciprocate. The design of the needles 2 enables them to efficiently loosen materials and clean up accumulated material during sintering. A driven gear 3 is installed at one end of the cylinder of each needle 2, and multiple driven gears 3 are linearly arranged along one end of the cylinder of the needle 2, thus ensuring the synchronous movement of each needle 2. Connecting sleeves 7 are fitted onto the cylinder of the needle 2, and multiple connecting sleeves 7 are connected in series through the fixed support 1, so that the needles 2 can be stably supported during operation and ensure effective cooperation with the gear system.
[0027] In this embodiment, the drive cleaning assembly includes a driven gear 3, a drive rack 4, and a drive gear 5. The drive rack 4 meshes with multiple driven gears 3, a structural design that ensures synchronous drive of the drive cleaning assembly. The drive gear 5 receives power from the drive motor via a connected drive shaft 6. The rotational power provided by the drive motor drives the drive rack 4 to move through the drive gear 5. Furthermore, the reciprocating rotation of the drive motor controls the synchronous reciprocating rotation of all the needles 2, ensuring that the loosening needles can continuously and effectively clean up accumulated material during operation, avoiding the material accumulation problem caused by incomplete cleaning in traditional cleaning methods.
[0028] Example 2:
[0029] Based on Example 1, in order to ensure the stable operation of each component, such as Figure 2 As shown, the needle body 2 also includes a spacer boss 8 in its structural design. The spacer boss 8 is mounted on the needle body 2 and serves as a spacer between the driven gear 3 and the connecting sleeve 7. The fixed bracket 1 and the connecting sleeve 7 are connected by a connecting bracket 9.
[0030] Meanwhile, based on the installation relationship between the driven gear 3 and the connecting sleeve 7, the outer diameter of the cylindrical boss is larger than the outer diameter of the connecting sleeve 7 and smaller than the root circle diameter of the driven gear 3. This ensures smooth rotation of the needle body 2 and prevents excessive friction or interference between components, thus extending the service life of the equipment.
[0031] In operation, the drive motor transmits power to the drive gear 5 via the drive shaft 6. The drive rack 4 then meshes with multiple driven gears 3 to rotate synchronously. The drive motor's reciprocating rotation controls the continuous reciprocating rotation of the material release needle, clearing accumulated material and eliminating the need for manual cleaning or manual cleaning after machine shutdown. Compared to existing technologies that use rollers for material release or require manual cleaning after machine shutdown, this invention allows for self-cleaning without stopping the equipment, significantly improving work efficiency and reducing unnecessary downtime during production.
[0032] The technical features disclosed above are not limited to combinations of the disclosed features with other features. Those skilled in the art may also make other combinations of the technical features according to the purpose of the disclosure in order to achieve the purpose of this disclosure.
[0033] Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.
Claims
1. A self-cleaning loosening needle for a sintering machine, characterized in that, Includes a fixed bracket (1), on which multiple needles (2) are linearly arrayed. One end of each needle (2) is cylindrical, and the cylindrical end of each needle (2) is rotatably mounted on the fixed bracket (1). One end of the cylinder of each of the needles (2) is also equipped with a drive cleaning component, which is used to synchronously drive all the needles (2) to reciprocate.
2. The self-cleaning loosening needle for a sintering machine according to claim 1, characterized in that: The driver cleanup component includes, Driven gears (3) are installed at one end of the cylindrical bodies of multiple needle bodies (2), and the driven gears (3) are arranged linearly; A drive rack (4) meshes with multiple driven teeth, the drive rack (4) being used to synchronously drive all driven gears (3); A drive gear (5) meshes with a drive rack (4), and a drive shaft (6) is connected to the drive gear (5), and a drive motor is externally connected to the drive shaft (6).
3. The self-cleaning loosening needle for a sintering machine according to claim 1, characterized in that: The fixed bracket (1) is connected to a plurality of connecting sleeves (7) corresponding to the needle body (2), and the connecting sleeves (7) are fitted onto the cylinder of the needle body (2).
4. The self-cleaning loosening needle for a sintering machine according to claim 3, characterized in that: A spacer boss (8) is installed between the connecting sleeve (7) and the driven gear (3) on the needle body (2).
5. The self-cleaning loosening needle for a sintering machine according to claim 4, characterized in that: The spacer protrusion (8) is a cylinder and is fixedly installed on the needle body (2).
6. The self-cleaning loosening needle for a sintering machine according to claim 5, characterized in that: The outer diameter of the spacer boss (8) is greater than the outer diameter of the connecting sleeve (7) and less than the root circle diameter of the driven gear (3).
7. The self-cleaning loosening needle for a sintering machine according to any one of claims 3-6, characterized in that: The fixed bracket (1) and the connecting sleeve (7) are connected by a connecting bracket (9), and multiple connecting brackets (9) are arranged linearly.
8. The self-cleaning loosening needle for a sintering machine according to claim 2, characterized in that: The two ends of the drive rack (4) are slidably mounted on the sintering machine; the fixed bracket (1) is fixedly mounted on the sintering machine.