Fastener wire spheronization annealing mechanism
By driving the wire roll to unfold using a rotating shaft and transmission components, the problem of uneven heat distribution during the annealing process of fastener wire is solved, achieving more efficient annealing and a more uniform grain refinement effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGNIAN COUNTY BOPIN FASTENERS MFG CO LTD
- Filing Date
- 2025-07-27
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing annealing process of fastener wire, uneven heat transfer is caused by the winding of the wire, resulting in low temperature difference and annealing efficiency, which affects the grain refinement effect of the material.
The wire coil is spread out by a rotating shaft, increasing the contact area with the annealing furnace. The rotating shaft is supported by a transmission assembly and ceramic bearings. The wire is spread out evenly using a threaded and sliding block structure. Combined with a sealing cover and vertical beam structure, the wire is ensured to have full contact with the annealing furnace.
It improves annealing efficiency, reduces temperature difference, achieves uniform and refined material grains, and enhances the annealing effect.
Smart Images

Figure CN224411856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener wire annealing technology, and more specifically, to a fastener wire spheroidizing annealing mechanism. Background Technology
[0002] High-quality bolts undergo annealing of their raw materials. The current operating method is to directly place the wire coil into the annealing furnace for annealing. However, since the wire coil is made of multiple wires wound together, heat is transferred from the outer wires to the inner wires, resulting in a certain temperature difference. First, the heat transfer process affects the annealing efficiency; second, uneven heating affects the refinement of the material grains. Utility Model Content
[0003] To address the above deficiencies, this utility model provides a spheroidizing annealing mechanism for fastener wires, thus solving the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A fastener wire spheroidizing annealing mechanism includes an annealing furnace and a wire coil, wherein multiple coils of wire are stacked together to form a wire coil, and also includes;
[0006] A rotating shaft can drive the wire coil to unwind, increasing the contact area with the annealing furnace space;
[0007] The transmission assembly can drive multiple rotating shafts to rotate.
[0008] Furthermore, it also includes a sealing cover, a vertical beam installed at the lower end of the sealing cover, a horizontal beam installed on the side wall of the vertical beam, a rotating shaft located inside the horizontal beam, a ceramic bearing installed inside the horizontal beam to support the rotating shaft, an elongated hole on the upper surface of the horizontal beam, and threads on the surface of the rotating shaft arranged opposite to each other.
[0009] Furthermore, the rotating shaft indirectly lays out the wire coil, including sliding blocks installed at both ends of the rotating shaft. The sliding blocks are threadedly connected to the rotating shaft, and the rotating shaft can drive the sliding blocks to move in opposite directions. A right-angled triangular block is hinged on the sliding block, and a torsion spring is installed between the right-angled triangular block and the sliding block. The right angle position of the right-angled triangular block is the hinge point. The torsion spring keeps the right-angled triangular block in a stable state while allowing it to rotate. The right-angled triangular block is divided into a left block and a right block, which are symmetrically arranged. The left block rotates towards one end of the crossbeam, and the right block rotates towards the other end of the crossbeam.
[0010] Furthermore, the rotating shaft directly lays out the wire coil, the thread pitch is greater than the wire diameter, the thread shape fits the wire, and the upper surface of the rotating shaft is higher than the elongated hole and contacts the wire coil.
[0011] Furthermore, the transmission assembly includes a ceramic bearing II installed inside the vertical beam, a vertical shaft inside the ceramic bearing II, an input module at the lower end of the vertical shaft, and the vertical shaft is connected to the rotating shaft via a bevel gear assembly.
[0012] Furthermore, stops are provided at both ends of the crossbeam.
[0013] The beneficial effects of this utility model are: the rotation of the rotating shaft can drive the wire roll to be spread out, increasing the contact area with the annealing furnace space, avoiding large temperature differences in the material, improving annealing efficiency, and making the grain refinement of the material more stable and uniform. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the fastener wire spheroidizing annealing mechanism described in this utility model;
[0015] Figure 2 This is a schematic diagram of Embodiment 1 of the rotating shaft;
[0016] Figure 3 This is a schematic diagram of Embodiment 2 of the rotating shaft;
[0017] Figure 4 This is a schematic diagram of the cross-section of the beam;
[0018] In the diagram, 1. Annealing furnace; 2. Wire coil; 3. Rotating shaft; 4. Transmission assembly; 5. Sealing cover; 6. Vertical beam; 7. Horizontal beam; 8. Ceramic bearing one; 9. Long hole; 10. Thread; 311. Sliding block; 312. Right-angled triangular block; 313. Torsion spring; 3121. Left block; 3122. Right block; 41. Ceramic bearing two; 42. Vertical shaft; 71. Stop block. Detailed Implementation
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0020] This application provides a spheroidizing annealing mechanism for fastener wires; please refer to [reference needed]. Figures 1-4 It includes an annealing furnace 1 and a wire coil 2, wherein multiple coils of wire are stacked together to form the wire coil 2, and also includes;
[0021] Rotating shaft 3 can drive the wire roll 2 to unfold, increasing the contact area with the space of annealing furnace 1;
[0022] The transmission component 4 can drive multiple rotating shafts 3 to rotate.
[0023] In practical applications, the rotating shaft 3 and the transmission assembly 4 are connected to the sealing cover 5. The wire coil 2, the rotating shaft 3 and the transmission assembly 4 can be moved into the annealing furnace 2 by an external crane for annealing. Before annealing, the transmission assembly 4 can be driven to rotate by an external rotational power source. The transmission assembly 4 drives multiple rotating shafts 3 to rotate. The rotation of the rotating shafts 3 can spread out the wire coil 2, making the spacing between the wires larger, thereby reducing the heat conduction time and improving the uniformity of the annealing temperature.
[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 It also includes a sealing cover 5, a vertical beam 6 installed at the lower end of the sealing cover 5, a horizontal beam 7 installed on the side wall of the vertical beam 6, a rotating shaft 3 located inside the horizontal beam 7, a ceramic bearing 8 installed inside the horizontal beam 7 to support the rotating shaft 3, an elongated hole 9 on the upper surface of the horizontal beam 7, and a thread 10 on the surface of the rotating shaft 3, with the threads 10 facing each other.
[0025] In practical applications, the vertical beam 6, the horizontal beam 7, and the sealing cover 5 form the main frame, which mainly serves to bear the load. The opposing arrangement of the threads 10 can drive a pair of sliding blocks 311 to move in opposite directions. The ceramic bearing 8 has high temperature resistance and can effectively support the rotation of the rotating shaft 3.
[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The rotating shaft 3 indirectly lays out the wire roll 2, including sliding blocks 311 installed at both ends of the rotating shaft 3. The sliding blocks 311 are threadedly connected to the rotating shaft 3 10. The rotating shaft 3 can drive the sliding blocks 311 to move in opposite directions or away from each other. A right-angled triangular block 312 is hinged on the sliding block 311. A torsion spring 313 is installed between the right-angled triangular block 312 and the sliding block 311. The right angle position of the right-angled triangular block 312 is the hinge point. The torsion spring 313 keeps the right-angled triangular block 312 stable while allowing it to rotate. The right-angled triangular block 312 is divided into a left block 3121 and a right block 3122 and is symmetrically arranged. The left block 3121 rotates towards one end of the crossbeam 7, and the right block 3122 rotates towards the other end of the crossbeam 7.
[0027] In practical applications, the initial position of the sliding block 311 is located at both ends of the rotating shaft 3. When the wire roll 2 moves onto the crossbeam 7, the wire is in a relatively dense stacked state. The rotating shaft 3 is controlled to rotate, driving the sliding block 311 and the right-angled triangular block 312 to move in opposite directions. When the right-angled triangular block 312 comes into contact with the wire roll 2, it is forced to rotate. The right-angled triangular block 312 does not drive the wire roll 2 to move. The sliding block 311 continues to move a certain distance, such as 20 centimeters. At this time, the rotating shaft 3 is controlled to reverse, and the right-angled triangular block 312 moves in the opposite direction. At this time, the friction between the wire roll 2 and the right-angled triangular block 312 causes the right-angled triangular block 312 to gradually return to its original position. The right-angled triangular block 312 can drive part of the wire roll 2 to separate from the original wire roll 2.
[0028] Repeat the above actions to achieve full contact with the annealing furnace 1.
[0029] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The rotating shaft 3 directly lays out the wire roll 2. The pitch of the thread 10 is greater than the diameter of the wire. The shape of the thread 10 fits the wire. The upper surface of the rotating shaft 3 is higher than the elongated hole 9 and contacts the wire roll 2.
[0030] In practical applications, when the wire roll 2 is placed on the rotating shaft 3, since the wire is arranged irregularly, some of the wire is in contact with the thread 10. When the rotating shaft 3 and the thread 10 rotate, some of the wire can be moved to both ends of the rotating shaft 3. Through continuous and repeated rotation, both forward and reverse rotation, the purpose of spreading out the wire roll 2 can be achieved.
[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The transmission assembly 4 includes a ceramic bearing 41 installed in the vertical beam 6. The ceramic bearing 41 has a vertical shaft 42 inside it. The lower end of the vertical shaft 42 has an input module. The vertical shaft 42 is connected to the rotating shaft 3 through a bevel gear assembly.
[0032] In practical applications, before the wire coil 2 enters the annealing furnace 1, the external power source connects with the input module to transmit power, and the vertical shaft 42 is in a rotatable state. The vertical shaft 42 rotates stably through the support of the ceramic bearing 41.
[0033] Reference Figure 3 The crossbeam 7 has stop blocks 71 at both ends.
[0034] In practical applications, the baffle 71 can prevent the wire roll 2 from falling off.
Claims
1. A fastener wire spheroidizing annealing mechanism, comprising an annealing furnace (1) and a wire coil (2), wherein multiple coils of wire are stacked together to form a wire coil (2), characterized in that, Also includes; Rotating shaft (3) can drive the wire roll (2) to unfold, increasing the contact area with the space of the annealing furnace (1); The transmission assembly (4) can drive multiple rotating shafts (3) to rotate; It also includes a sealing cover (5), a vertical beam (6) installed at the lower end of the sealing cover (5), a horizontal beam (7) installed on the side wall of the vertical beam (6), a rotating shaft (3) is located inside the horizontal beam (7), a ceramic bearing (8) is installed inside the horizontal beam (7) to support the rotating shaft (3), an elongated hole (9) is opened on the upper surface of the horizontal beam (7), and a thread (10) is provided on the surface of the rotating shaft (3), with the threads (10) facing each other.
2. The fastener wire spheroidizing annealing mechanism according to claim 1, characterized in that, The rotating shaft (3) indirectly lays out the wire roll (2), including sliding blocks (311) installed at both ends of the rotating shaft (3). The sliding blocks (311) are threaded (10) connected to the rotating shaft (3). The rotating shaft (3) can drive the sliding blocks (311) to move in opposite directions or away from each other. A right-angled triangular block (312) is hinged on the sliding block (311). A torsion spring (313) is installed between the right-angled triangular block (312) and the sliding block (311). The right angle of the right-angled triangular block (312) is the hinge point. The torsion spring (313) keeps the right-angled triangular block (312) stable while allowing it to rotate. The right-angled triangular block (312) is divided into a left block (3121) and a right block (3122) and is symmetrically arranged. The left block (3121) rotates towards one end of the crossbeam (7), and the right block (3122) rotates towards the other end of the crossbeam (7).
3. The fastener wire spheroidizing annealing mechanism according to claim 1, characterized in that, The rotating shaft (3) directly lays out the wire roll (2), the pitch of the thread (10) is greater than the diameter of the wire, the shape of the thread (10) fits the wire, and the upper surface of the rotating shaft (3) is higher than the long hole (9) and contacts the wire roll (2).
4. The fastener wire spheroidizing annealing mechanism according to claim 2 or 3, characterized in that, The transmission assembly (4) includes a ceramic bearing II (41) installed in the vertical beam (6), a vertical shaft (42) is provided in the ceramic bearing II (41), an input module is provided at the lower end of the vertical shaft (42), and the vertical shaft (42) is connected to the rotating shaft (3) through a bevel gear combination.
5. The fastener wire spheroidizing annealing mechanism according to claim 4, characterized in that, The crossbeam (7) has stops (71) at both ends.