Mesh belt deviation rectifying device for mesh belt transmission tunnel type resistance furnace

Abstract

The utility model provides a mesh belt transmission tunnel type resistance furnace deviation rectifying device which comprises mesh belt detection mechanisms and an inlet roller moving mechanism, the mesh belt detection mechanisms are arranged at the two ends of a transmission rack and used for detecting the deviation amount of a mesh belt, and the inlet roller moving mechanism is arranged on an inlet roller support and connected with one axial end of an inlet roller. The mesh belt detection mechanism is electrically connected with the inlet roller moving mechanism and used for transmitting the mesh belt deviation amount to the inlet roller moving mechanism, and the inlet roller moving mechanism is used for adjusting the longitudinal movement of one axial end of the inlet roller according to the mesh belt deviation amount. Meanwhile, the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to resistance furnace accessories, specifically a mesh belt correction device for a mesh belt driven tunnel resistance furnace. Background Technology

[0002] Tunnel-type resistance furnaces with mesh belt drive are a widely used type of kiln equipment, characterized by high temperatures and long lengths. Mesh belt misalignment is a phenomenon where the mesh belt of the resistance furnace deviates to one side during operation. During furnace operation, products are loaded onto the mesh belt and enter the furnace chamber for heat treatment, then are transported out of the furnace, completing the heat treatment process. However, due to the length of the resistance furnace, uneven heating deformation of the mesh belt can easily occur, leading to misalignment during operation. If not addressed promptly, this can cause severe deformation, potentially resulting in belt tearing and safety accidents, and necessitating furnace shutdown and mesh belt replacement. Current resistance furnace conveyor systems use misalignment switches to detect and trigger alarms. Operators then manually adjust the inlet roller position to reduce the misalignment. However, manual adjustment poses safety risks; excessive misalignment can lead to injuries during adjustment, and it also requires stopping the transmission system, impacting work efficiency. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive. When the mesh belt deviates too much, it can detect and automatically correct the deviation in a timely manner, achieving mesh belt correction without stopping the machine. This not only reduces safety hazards but also improves production efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A belt-driven tunnel-type resistance furnace correction device includes a belt detection mechanism and an inlet roller moving mechanism. The belt detection mechanism is located at the end of the transmission frame and is used to detect the belt deviation. The inlet roller moving mechanism is located on the inlet roller support and connected to one axial end of the inlet roller. The belt detection mechanism and the inlet roller moving mechanism are electrically connected to transmit the belt deviation to the inlet roller moving mechanism. The inlet roller moving mechanism is used to adjust the longitudinal movement of one axial end of the inlet roller according to the belt deviation.

[0006] Furthermore, the mesh belt detection mechanism includes a detection switch, one of which is spaced at one end of the transmission frame and located on one side of the mesh belt, and the detection switch is electrically connected to the inlet roller moving mechanism.

[0007] Furthermore, the mesh belt detection mechanism includes detection switches, a pair of which are spaced apart at both ends of the transmission frame and located on both sides of the mesh belt. Both detection switches are electrically connected to the inlet roller moving mechanism.

[0008] Furthermore, the inlet roller moving mechanism includes a motor and a first lead screw and nut sub-mechanism. The first lead screw and nut sub-mechanism is disposed on one side of the inlet roller bracket. One end of the inlet roller is hinged to the lead screw and nut sub-mechanism, and the other end of the inlet roller is hinged to the other side of the inlet roller bracket. The motor is used to drive the lead screw and nut sub-mechanism to move one end of the inlet roller. The detection switch is electrically connected to the motor.

[0009] Furthermore, a second lead screw and nut sub-mechanism is provided on the other side of the inlet roller bracket, and the other end of the inlet roller is hinged to the second lead screw and nut sub-mechanism.

[0010] Furthermore, both the first lead screw and nut sub-mechanism and the second lead screw and nut sub-mechanism include a correction frame, a screw, and a moving block. The correction frame is mounted on the inlet roller support, the two ends of the screw are slidably connected to the correction frame, the moving block is screwed to the outer periphery of the screw, and the end of the inlet roller is slidably hinged to the moving block.

[0011] Furthermore, a spherical bearing is fitted at the end of the inlet roller, and the spherical bearing is embedded in the moving block.

[0012] Furthermore, a proximity switch is provided on the first lead screw nut sub-mechanism, and a pair of proximity switches are respectively located on both sides of the moving block to limit the moving distance of the moving block.

[0013] Furthermore, a T-shaped nut is provided on the moving block of the first lead screw nut sub-mechanism, and the T-shaped nut is sleeved on the lead screw and one end is connected to the moving block.

[0014] Furthermore, the motor is connected to the screw via a coupling.

[0015] Due to the adoption of the above technical solution, this utility model has the following advantages and effects:

[0016] This invention provides a mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive. The mesh belt detection mechanism detects the mesh belt deviation. When the deviation on one side of the mesh belt exceeds the warning value, the inlet roller moving mechanism is activated, driving one end of the inlet roller to move radially while the other end remains stationary. This causes the inlet roller to move like a pendulum, adjusting the mesh belt to the other side and achieving mesh belt correction. Furthermore, this device can detect and automatically correct the mesh belt in a timely manner, achieving correction without stopping the machine, which not only reduces safety hazards but also improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation structure of the correction device of this utility model.

[0018] Figure 2 for Figure 1 A magnified schematic diagram of a portion of structure A.

[0019] Figure 3 for Figure 1 Side view.

[0020] Figure 4 This is a cross-sectional view of the installation structure of the correction device of this utility model.

[0021] The attached diagram is labeled as follows: 1-Transmission frame, 2-Detection switch, 3-Proximity switch, 4-Motor, 5-Inlet roller, 6-Spherical bearing, 7-End cover, 8-Moving block, 9-T-nut, 10-Screw, 11-Correction frame, 12-Locking nut, 13-Coupling, 14-First flat key, 15-Connecting shaft, 16-Second flat key, 17-Inlet roller support. Detailed Implementation

[0022] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are only for illustrating the essential spirit of the technical solution of this utility model.

[0023] like Figures 1-4 As shown. This utility model provides a belt-driven tunnel-type resistance furnace deviation correction device, including a belt detection mechanism and an inlet roller moving mechanism. The belt detection mechanism is located at the end of the transmission frame 1 and is used to detect the belt deviation. The inlet roller moving mechanism is located on the inlet roller support 17 and connected to one axial end of the inlet roller 5. The belt detection mechanism and the inlet roller moving mechanism are electrically connected to transmit the belt deviation to the inlet roller moving mechanism. The inlet roller moving mechanism is used to adjust the longitudinal movement of one axial end of the inlet roller 5 according to the belt deviation.

[0024] Specifically, the transmission frame 1 and the inlet roller support 17 constitute the conveyor belt frame. The inlet rollers are positioned on the longitudinal beams on both sides of the inlet roller support 17 after the conveyor belt passes through the crossbeams of the transmission frame 1. The conveyor belt is then conveyed by the inlet rollers. A conveyor belt detection mechanism is used to detect belt deviation. When the deviation on one side exceeds a warning value, the inlet roller moving mechanism is activated, causing one end of the inlet roller 5 to move longitudinally along its radial direction, while the other end remains stationary. This pendulum motion of the inlet roller 5 adjusts the conveyor belt to the other side. If the belt deviates on the other side, it moves in the opposite direction for adjustment.

[0025] Furthermore, the mesh belt detection mechanism includes detection switches 2. A pair of detection switches 2 are spaced apart at both ends of the transmission frame 1 and located on both sides of the mesh belt. The detection switches 2 are electrically connected to the inlet roller moving mechanism.

[0026] Specifically, the detection switch 2 is a limit switch. A pair of limit switches are connected to the crossbeam at the entrance end of the transmission frame 1 by M5 screws and are located at the left and right limit positions of the mesh belt. A pair of limit switches are electrically connected to the entrance roller moving mechanism to transmit the mesh belt deviation amount to the entrance roller moving mechanism.

[0027] As a preferred embodiment, a detection switch is provided at one end of the transmission frame and on one side of the mesh belt. The detection switch is electrically connected to the inlet roller moving mechanism, and the mesh belt deviation is detected through the detection switch.

[0028] Furthermore, the inlet roller moving mechanism includes a motor 4 and a first lead screw and nut sub-mechanism. Both the motor 4 and the first lead screw and nut sub-mechanism are located on one side of the inlet roller bracket 17. One end of the inlet roller 5 is hinged to the first lead screw and nut sub-mechanism, and the other end of the inlet roller 5 is hinged to the other side of the inlet roller bracket 17. The motor 4 is used to drive the first lead screw and nut sub-mechanism to move one end of the inlet roller 5. The detection switch 2 is electrically connected to the motor 4.

[0029] Specifically, the motor 4 and the first lead screw and nut sub-mechanism are both set on one side of the longitudinal beam of the inlet roller bracket 17. The rotation of the motor 4 drives the first lead screw and nut sub-mechanism, which adjusts the position of one end of the inlet roller 5 while the other end of the inlet roller 5 remains stationary, so that the inlet roller 5 tilts towards one end. When the mesh belt passes through the inlet roller 5, it is adjusted to the other side, thereby realizing the mesh belt correction.

[0030] Furthermore, to facilitate manual adjustment of the inlet roller's position, a second lead screw and nut mechanism is provided on the other side of the inlet roller bracket 17, and the other end of the inlet roller 5 is hinged to the second lead screw and nut mechanism. The position of the other end of the inlet roller 5 can be manually adjusted via the second lead screw and nut mechanism.

[0031] Furthermore, both the first lead screw nut sub-mechanism and the second lead screw nut sub-mechanism include a correction frame 11, a screw 10, and a moving block 8. The correction frame 11 is mounted on the inlet roller support. The two ends of the screw 10 are slidably connected to the correction frame 11. The moving block 8 is screwed onto the outer periphery of the screw 10. The end of the inlet roller 5 is hinged to the moving block 8.

[0032] Specifically, the movable block 8 has a threaded hole in the axial direction and is sleeved on the screw 10. The two ends of the screw 10 are slidably connected to the two ends of the straightening frame 11 through bearings, which can achieve radial rotation. The straightening frame 11 is a rectangular frame structure with a hollow interior. A locking nut 12 is sleeved on one end of the screw 10. The locking nut 12 is connected to the straightening frame 11 to limit the screw axially on the straightening frame 11.

[0033] Furthermore, in order to facilitate the rapid movement of the moving block 8, a T-shaped nut 9 is provided on the moving block 8 of the first lead screw nut sub-mechanism. The T-shaped nut 9 is fitted with the screw 10 and one end is connected to the moving block 8.

[0034] Specifically, a T-nut 9 is provided on one end face of the moving block 8 of the first lead screw nut sub-mechanism. The T-nut 9 has an internal thread. The T-nut 9 is fitted with the screw 10 and threadedly connected to the screw 10. One end of the T-nut 9 is connected to the moving block 8 by a screw.

[0035] Furthermore, a spherical bearing 6 is fitted onto the end of the inlet roller 5, and the spherical bearing 6 is embedded in the movable block 8.

[0036] Specifically, the spherical bearing 6 is pressed into the movable block 8 by the end cover 7, and the sliding hinge of the end of the inlet roller 5 is realized by the spherical bearing 6.

[0037] Furthermore, a proximity switch 3 is provided on the first lead screw and nut sub-mechanism. A pair of proximity switches 3 are located on both sides of the moving block 8 of the first lead screw and nut sub-mechanism to limit the moving distance of the moving block 8.

[0038] Specifically, to protect the motor 4, proximity switches 3 are installed on both sides of the moving block 8 of the first lead screw nut sub-mechanism on one side of the motor 4. When the movement of the moving block 8 reaches the maximum adjustment amount, the electrical interlock can be activated, allowing the motor 4 to run in one direction and achieve idling, while the first lead screw nut mechanism does not move. The proximity switches 3 are respectively connected to the switch plate on the correction frame 11 with M5 screws, and are located at the front and rear ends of the moving block 8 for limiting.

[0039] Furthermore, the motor 4 is connected to the screw 10 of the first lead screw nut sub-mechanism via a coupling 13. One end of the screw 10 is nested within the inner circumference of one end of the coupling 13, and the other inner circumference of the coupling 13 is connected to one end of the connecting shaft 15 via a first flat key 14. The other end of the connecting shaft 15 is connected to the output end of the motor 4 via a second flat key 16. The motor 4 adopts a worm gear servo reducer, and the output end of the motor 4 is equipped with an electrical interlock mechanism, which is electrically connected to the proximity switch 3.

[0040] In use, this utility model ensures that the limit switch can be triggered when the conveyor belt deviates by adjusting the height and angle of the detection switch 2. By adjusting the height and angle of the proximity switch 3, it can ensure that the switch plate on the moving block 8 can trigger the proximity switch. The proximity switch can activate the electrical interlock mechanism to achieve electrical interlock.

[0041] This invention uses a pair of detection switches 2 in the mesh belt detection mechanism to detect the mesh belt deviation. When the deviation on one side of the mesh belt exceeds the warning value, the motor 4 of the inlet roller moving mechanism is started. The motor 4 rotates and drives the moving block 8 to move, thereby adjusting the position of one end of the inlet roller 5 so that the mesh belt is adjusted to the other side. Similarly, when the deviation on the other side of the mesh belt exceeds the warning value, the motor rotates in the opposite direction, thereby adjusting the mesh belt in the opposite direction. This achieves mesh belt correction and ensures the continuous operation of the resistance furnace.

Claims

1. A belt alignment device for a mesh belt driven tunnel-type resistance furnace, characterized in that, The system includes a mesh belt detection mechanism and an inlet roller moving mechanism. The mesh belt detection mechanism is located at the end of the transmission frame and is used to detect the mesh belt deviation. The inlet roller moving mechanism is located on the inlet roller support and connected to one axial end of the inlet roller. The mesh belt detection mechanism and the inlet roller moving mechanism are electrically connected to transmit the mesh belt deviation to the inlet roller moving mechanism. The inlet roller moving mechanism is used to adjust the longitudinal movement of one axial end of the inlet roller according to the mesh belt deviation.

2. The mesh belt correction device for a mesh belt driven tunnel-type resistance furnace according to claim 1, characterized in that, The mesh belt detection mechanism includes a detection switch, one of which is spaced at one end of the transmission frame and located on one side of the mesh belt. The detection switch is electrically connected to the inlet roller moving mechanism.

3. The mesh belt correction device for a mesh belt driven tunnel resistance furnace according to claim 1, characterized in that, The mesh belt detection mechanism includes detection switches. A pair of detection switches are spaced apart at both ends of the transmission frame and located on both sides of the mesh belt. The detection switches on both sides are electrically connected to the inlet roller moving mechanism.

4. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 2 or 3, characterized in that, The inlet roller moving mechanism includes a motor and a first lead screw and nut sub-mechanism. The first lead screw and nut sub-mechanism is disposed on one side of the inlet roller bracket. One end of the inlet roller is slidably hinged to the first lead screw and nut sub-mechanism, and the other end of the inlet roller is hinged to the other side of the inlet roller bracket. The motor is used to drive the first lead screw and nut sub-mechanism to move one end of the inlet roller. The detection switch is electrically connected to the motor.

5. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 4, characterized in that, A second lead screw and nut mechanism is provided on the other side of the inlet roller bracket, and the other end of the inlet roller is hinged to the second lead screw and nut mechanism.

6. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 5, characterized in that, Both the first lead screw and nut sub-mechanism include a correction frame, a screw, and a moving block. The correction frame is mounted on the inlet roller support. The two ends of the screw are slidably connected to the correction frame. The moving block is screwed to the outer periphery of the screw. The end of the inlet roller is slidably hinged to the moving block.

7. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 6, characterized in that, The end of the inlet roller is fitted with a spherical bearing, which is embedded in the moving block.

8. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 7, characterized in that, The first lead screw and nut sub-mechanism is equipped with a proximity switch. A pair of proximity switches are located on both sides of the moving block of the first lead screw and nut sub-mechanism to limit the moving distance of the moving block.

9. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 8, characterized in that, A T-shaped nut is provided on the moving block of the first lead screw nut sub-mechanism. The T-shaped nut is sleeved on the lead screw and one end is connected to the moving block.

10. A mesh belt correction device for a tunnel-type resistance furnace with mesh belt drive according to claim 9, characterized in that, The motor is connected to the screw of the first lead screw and nut sub-mechanism via a coupling.

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