Uniform heating guide roller for wire and cable annealing furnace

Abstract

The utility model discloses a kind of wire and cable annealing furnace inner wire rod uniform heating guide roller, it is related to wire and cable annealing equipment technical field, including a heated roller, middle part is provided with the U-shaped groove matched with wire rod diameter;Two cooling rollers, respectively through detachable structure splicing in the two ends of heated roller, cooling layer is formed in the inner chamber of each cooling roller, and spiral flow guide vane is fixedly installed in cooling layer, water pipe assembly that is communicated with cooling layer is also provided in cooling roller;Two rotating shafts, respectively installed in the end of two cooling rollers.The utility model is designed as heated part in guide roller middle section, and the two ends are set as cooling part with forced cooling function, and high-temperature area is effectively limited in guide roller middle section work area successfully.This structure blocks the transmission of heat to two end bearings and other key support components, ensuring that bearings are always in good low-temperature working environment.

Description

Technical Field

[0001] This utility model relates to the field of wire and cable annealing equipment, and in particular to a wire and cable annealing furnace guide roller for uniform heating of wires. Background Technology

[0002] Annealing is a crucial heat treatment process in the manufacturing of wires and cables. Its purpose is to eliminate internal stresses generated during earlier processing such as drawing and stranding, restore the metal's ductility and conductivity, and thus improve the wire's flexibility and overall performance. During the continuous heating and cooling process of the wire in the annealing furnace, guide rollers play a key supporting and steering role. They ensure that the wire passes smoothly through the high-temperature zone along a predetermined path and with set tension, making them one of the core components for achieving uniform heating and stable production.

[0003] However, during the annealing process of traditional guide rollers, the wire only comes into contact with and is heated in a portion of the roller body, and the overall structural design of traditional guide rollers means the entire roller is exposed to heat. As a result, components such as the shaft and bearings mounted at the end of the guide roller are continuously subjected to high temperatures. Prolonged exposure to high temperatures can cause changes in the material properties of these components, such as thermal expansion leading to altered clearances and lubricant failure, ultimately resulting in unstable operation of the components at the end of the guide roller. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing guide rollers that do not have a cooling effect at both ends, and to propose a guide roller for uniform heating of wires in an annealing furnace for wires and cables.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A wire uniform heating guide roller in an annealing furnace for wires and cables includes a heating roller with a U-shaped groove in its middle that matches the diameter of the wire; two cooling rollers, which are respectively spliced ​​to the two ends of the heating roller by a detachable structure; each cooling roller has a cooling jacket in its inner cavity, and a spiral guide vane is fixedly installed in the cooling jacket; the cooling roller also has a water pipe assembly connected to the cooling jacket; and two rotating shafts are respectively installed at the ends of the two cooling rollers.

[0006] Preferably, the water pipe assembly includes a metal inlet pipe and a metal outlet pipe. One end of the metal inlet pipe is fixedly connected to a cooling jacket near the heated roller, and one end of the metal outlet pipe is fixedly connected to a cooling jacket near the rotating shaft. The other end of the metal inlet pipe extends along the central axis of the cooling roller to the outside of the cavity, and the other end of the metal outlet pipe extends along the edge of the cooling roller to the outside of the cavity. Rotary joint assemblies are connected to the ends of the metal inlet pipe and the metal outlet pipe.

[0007] Preferably, the rotary joint assembly includes a joint housing, with a first cavity and a second cavity respectively formed at the center and edge of the joint housing. A first connector and a second connector are rotatably provided at the center and edge of one side of the joint housing, respectively. The ends of the first connector and the second connector are threadedly connected to a metal inlet pipe and a metal outlet pipe, respectively. The inner cavities of the first connector and the second connector are connected to the first cavity and the second cavity, respectively. External joints are installed at the ends of both the first cavity and the second cavity.

[0008] Preferably, the rotating shaft includes a hollow shaft, one end of which is fixedly provided with a flange, the flange is connected to the cooling roller by screws, and the metal inlet pipe and the metal outlet pipe both pass through the flange and the hollow shaft.

[0009] Preferably, a connecting sleeve is fixedly provided at the center of the end of one of the cooling rollers, and a screw is fixedly provided at the center of the end of the other cooling roller. The connecting sleeve and the screw are both inserted into the middle cavity of the heated roller. The screw is threadedly connected to the inner cavity of the connecting sleeve. A fixing member is provided between the connecting sleeve, the screw and the heated roller.

[0010] Preferably, the fastener includes slots symmetrically formed on the connecting sleeve, the screw, and the heated roller, and the slots are threaded with bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by designing the middle section of the guide roller as a heat-receiving part and setting both ends as cooling parts with forced cooling function, the high-temperature area is effectively confined to the middle working area of ​​the guide roller. This structure blocks the transfer of heat to key support components such as the bearings at both ends, ensuring that the bearings are always in a good low-temperature working environment and that the guide roller can operate stably for a long time. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the cooling roller of this utility model; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a schematic diagram of the rotary joint assembly structure of this utility model.

[0013] The numbers in the diagram are as follows: 1. Heating roller; 11. Cooling roller; 12. Rotating shaft; 13. U-shaped groove; 14. Cooling jacket; 15. Spiral guide vane; 2. Water pipe assembly; 21. Metal inlet pipe; 22. Metal outlet pipe; 3. Rotary joint assembly; 31. Joint housing; 32. First connector; 33. Second connector; 34. First cavity; 35. Second cavity; 36. External joint; 4. Hollow shaft; 41. Flange; 5. Connecting sleeve; 51. Screw; 6. Slot; 61. Bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0017] Example: This example provides a guide roller for uniform heating of wires inside an annealing furnace for wires and cables. See [link / reference]. Figure 1-4 Specifically, it includes a heating roller 1 with a U-shaped groove 13 in its middle that matches the diameter of the wire; two cooling rollers 11, which are respectively spliced ​​to the two ends of the heating roller 1 by a detachable structure. Each cooling roller 11 has a cooling jacket 14 in its inner cavity, and a spiral guide vane 15 is fixedly installed in the cooling jacket 14. The cooling roller 11 also has a water pipe assembly 2 that is connected to the cooling jacket 14; and two rotating shafts 12, which are respectively installed at the ends of the two cooling rollers 11.

[0018] In this embodiment, the heated roller 1 directly withstands the high temperature inside the annealing furnace, and its U-shaped groove 13 ensures that the wire is stably guided and uniformly heated. The cooling roller 11 and the cooling jacket 14 act as a thermal barrier. The cooling jacket 14 inside is a channel for the flow of the cooling medium (coolant), absorbing and carrying away heat to ensure that the cooling roller 11 is kept at a low temperature. The spiral guide vane 15 forces the coolant to flow along a spiral path, greatly increasing the length of the water flow path and the degree of turbulence, thereby greatly improving the heat exchange efficiency; it makes the coolant turbulent rather than laminar. The water pipe assembly 2 provides circulation of the coolant in the cooling jacket 14.

[0019] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the water pipe assembly 2 includes a metal inlet pipe 21 and a metal outlet pipe 22. One end of the metal inlet pipe 21 is fixedly connected to the cooling jacket 14 in the direction close to the heated roller 1, and one end of the metal outlet pipe 22 is fixedly connected to the cooling jacket 14 in the direction close to the rotating shaft 12. The other end of the metal inlet pipe 21 extends along the central axis of the cooling roller 11 to the outside of the cavity, and the other end of the metal outlet pipe 22 extends along the edge of the cooling roller 11 to the outside of the cavity. Rotary joint assembly 3 is connected to the ends of the metal inlet pipe 21 and the metal outlet pipe 22.

[0020] In this embodiment, the metal inlet pipe 21 and the metal outlet pipe 22 are responsible for introducing and discharging the cooling medium into and out of the cooling jacket 14, establishing a closed circulation loop. The metal inlet pipe 21 is close to the heated roller 1 so that the coolant can first remove the temperature from the hottest part of the cooling roller 11. The rotary joint assembly 3 is connected to the ends of the metal inlet pipe 21 and the metal outlet pipe 22. Since the water pipe needs to maintain its connection with the external cooling system during the rotation of the device, the rotary joint assembly 3 can achieve a sealed connection of the water pipe during rotation, ensuring the normal delivery and discharge of the cooling medium.

[0021] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the rotary joint assembly 3 includes a joint housing 31. The joint housing 31 has a first cavity 34 and a second cavity 35 respectively opened at its center and edge. A first connector 32 and a second connector 33 are rotatably provided at the center and edge of one side of the joint housing 31, respectively. The ends of the first connector 32 and the second connector 33 are threadedly connected to the metal inlet pipe 21 and the metal outlet pipe 22, respectively. The inner cavities of the first connector 32 and the second connector 33 are connected to the first cavity 34 and the second cavity 35, respectively. External connectors 36 are installed at the ends of the first cavity 34 and the second cavity 35.

[0022] In this embodiment, the first connector 32 and the second connector 33 are rotatably mounted on the connector housing 31 and are threadedly connected to the metal inlet pipe 21 and the metal outlet pipe 22, respectively, to achieve a reliable connection between the water pipe and the rotary connector assembly 3. They also allow the connectors to rotate relative to the connector housing 31 when the device rotates. Both ends of the first connector 32 and the second connector 33 are equipped with sealing rings to ensure a tight seal. The external infusion device and the liquid dispensing device are connected to the external connector 36 via pipes. The coolant enters the metal inlet pipe 21 through the first cavity 34, carries away the heat from the cooling roller 11 along the spiral guide vane 15, passes through the second connector 33 from the metal outlet pipe 22 into the second cavity 35, and finally exits from the external connector 36.

[0023] When the cooling roller 11 and the heating roller 1 rotate, the first connector 32 and the second connector 33 are driven to rotate along the connector housing 31 through the metal inlet pipe 21 and the metal outlet pipe 22, so as to realize the circulation of coolant during the operation of the guide roller.

[0024] In the specific implementation process, such as Figure 1 and Figure 3 As shown, the rotating shaft 12 includes a hollow shaft 4, one end of which is fixedly provided with a flange 41. The flange 41 is connected to the cooling roller 11 by screws. The metal inlet pipe 21 and the metal outlet pipe 22 both pass through the flange 41 and the hollow shaft 4.

[0025] In this embodiment, the device is mounted on an external support structure via a hollow shaft 4, enabling rotation around the hollow shaft 4. A flange 41 reliably connects the hollow shaft 4 to the cooling roller 11. A metal inlet pipe 21 and a metal outlet pipe 22 pass through the flange 41 and the hollow shaft 4, ensuring the normal delivery of the cooling medium during the rotation of the device.

[0026] In the specific implementation process, such as Figure 1 and Figure 3 As shown, a connecting sleeve 5 is fixedly provided at the center of the end of one cooling roller 11, and a screw 51 is fixedly provided at the center of the end of another cooling roller 11. The connecting sleeve 5 and the screw 51 are both inserted into the middle cavity of the heated roller 1. The screw 51 is threadedly connected to the inner cavity of the connecting sleeve 5. A fixing member is provided between the connecting sleeve 5, the screw 51 and the heated roller 1.

[0027] In this embodiment, the screw 51 is inserted into the inner cavity of the connecting sleeve 5 and tightened to achieve the initial splicing of the two cooling rollers 11 and the heating roller 1. Then, the connecting sleeve 5, the screw 51 and the heating roller 1 are further fixed by the fasteners to keep the whole device stable during operation.

[0028] In the specific implementation process, such as Figure 1 and Figure 3 As shown, the fastener includes slots 6 symmetrically opened on the connecting sleeve 5, the screw 51 and the heated roller 1, and the slots 6 are threaded with bolts 61.

[0029] In this embodiment, after the connecting sleeve 5, screw 51 and heated roller 1 are assembled, the bolt 61 is screwed into the symmetrically opened slot 6. The connecting sleeve 5, screw 51 and heated roller 1 are firmly fixed together by the threaded connection between the bolt 61 and the slot 6, so as to ensure the stability of the device during operation.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A guide roller for uniform heating of wires in an annealing furnace for electric wires and cables, characterized in that, include: A heated roller (1) has a U-shaped groove (13) in its middle that matches the diameter of the wire. Two cooling rollers (11) are respectively spliced ​​to the two ends of the heated roller (1) through a detachable structure. Each cooling roller (11) has a cooling jacket (14) in its inner cavity. A spiral guide vane (15) is fixedly installed in the cooling jacket (14). A water pipe assembly (2) connected to the cooling jacket (14) is also provided in the cooling roller (11). Two rotating shafts (12) are respectively installed at the ends of the two cooling rollers (11).

2. The wire uniform heating guide roller in an annealing furnace for wires and cables according to claim 1, characterized in that: The water pipe assembly (2) includes a metal inlet pipe (21) and a metal outlet pipe (22). One end of the metal inlet pipe (21) is fixedly connected to the cooling jacket (14) in the direction close to the heated roller (1). One end of the metal outlet pipe (22) is fixedly connected to the cooling jacket (14) in the direction close to the rotating shaft (12). The other end of the metal inlet pipe (21) extends out of the cavity along the central axis of the cooling roller (11). The other end of the metal outlet pipe (22) extends out of the cavity along the edge of the cooling roller (11). The ends of the metal inlet pipe (21) and the metal outlet pipe (22) are connected to a rotary joint assembly (3).

3. The wire uniform heating guide roller in an annealing furnace for wires and cables according to claim 2, characterized in that: The rotary joint assembly (3) includes a joint housing (31). The joint housing (31) has a first cavity (34) and a second cavity (35) at its center and edge, respectively. A first connector (32) and a second connector (33) are rotatably provided at the center and edge of one side of the joint housing (31), respectively. The ends of the first connector (32) and the second connector (33) are threadedly connected to the metal inlet pipe (21) and the metal outlet pipe (22), respectively. The inner cavities of the first connector (32) and the second connector (33) are connected to the first cavity (34) and the second cavity (35), respectively. The ends of the first cavity (34) and the second cavity (35) are each equipped with an external connector (36).

4. The wire uniform heating guide roller in an annealing furnace for wires and cables according to claim 2, characterized in that: The rotating shaft (12) includes a hollow shaft (4), one end of which is fixedly provided with a flange (41). The flange (41) is connected to the cooling roller (11) by screws. The metal inlet pipe (21) and the metal outlet pipe (22) both pass through the flange (41) and the hollow shaft (4).

5. The wire uniform heating guide roller in an annealing furnace for wires and cables according to claim 1, characterized in that: A connecting sleeve (5) is fixedly provided at the center of the end of one of the cooling rollers (11), and a screw (51) is fixedly provided at the center of the end of the other cooling roller (11). The connecting sleeve (5) and the screw (51) are both inserted into the middle cavity of the heated roller (1). The screw (51) is threadedly connected to the inner cavity of the connecting sleeve (5). A fixing member is provided between the connecting sleeve (5), the screw (51) and the heated roller (1).

6. The wire uniform heating guide roller in an annealing furnace for wires and cables according to claim 5, characterized in that: The fastener includes slots (6) symmetrically opened on the connecting sleeve (5), screw (51) and heated roller (1), and the slots (6) are threaded with bolts (61).

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