Automatic correcting device for microwave drying conveying belt

By using an automatic correction device with retractable correction rollers and proximity switches in the microwave dryer, the problem of conveyor belt misalignment at high temperatures was solved, improving the stability of equipment operation and production efficiency.

CN223920265UActive Publication Date: 2026-02-17JINCHUAN GRP NICKEL SALTS CO LTD +1
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Patent Information

Application Number
CN202520694733.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-17
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

The PTFE conveyor belt of a microwave dryer is prone to thermal expansion and elongation under high temperature conditions, which can lead to abnormal belt misalignment and affect the normal operation of the equipment and production efficiency.

Method used

An automatic correction device for microwave drying conveyor belts was designed. It uses retractable correction rollers and proximity switches. By monitoring the conveyor belt offset, the device automatically adjusts the lifting and lowering of the correction rollers to ensure the straightness of the conveyor belt.

Benefits of technology

It enables rapid response and automatic correction when the conveyor belt deviates, reducing downtime and improving material conveying efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic correcting device for a microwave drying conveyor belt, which comprises a rack, a driving roller, a teflon conveyor belt and a microwave heating source, a telescopic correcting roller is arranged below the teflon conveyor belt, two lifting mechanisms are fixed on two sides of the rack, the top ends of the lifting mechanisms support the correcting roller through universal hinge bearings, and the driving roller is arranged below the teflon conveyor belt. Proximity switches are arranged on the portions, on the two sides of the polytetrafluoroethylene conveying belt, of the machine frame and can control the lifting mechanism to ascend and descend. According to the utility model, the device capable of automatically correcting the microwave drying conveyor belt is developed according to the problem that the polytetrafluoroethylene conveyor belt of the microwave dryer is easy to deviate in the on-site drying process of the ternary precursor, so that the number of times of abnormal shutdown in production is greatly reduced, the labor intensity of workers is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of tunnel microwave drying technology for ternary precursor materials, and specifically relates to an automatic correction device for microwave drying conveyor belt. Background Technology

[0002] Ternary precursors, a crucial raw material for lithium batteries, involve processes such as washing, drying, mixing, and packaging during their production. The drying process often utilizes tunnel-type microwave dryers. However, due to the thermal expansion and elongation of the PTFE conveyor belts in these dryers under high temperatures, belt misalignment frequently occurs during product transport, necessitating equipment shutdown and belt length readjustment. This belt misalignment disrupts normal equipment operation, increases worker workload, and reduces production efficiency. Utility Model Content

[0003] To address the problem of PTFE conveyor belt misalignment in microwave dryers during the drying process of ternary precursor raw materials, this application provides an automatic correction device for microwave drying conveyor belts.

[0004] An automatic correction device for a microwave drying conveyor belt includes a frame, drive rollers, a PTFE conveyor belt, and a microwave heating source. The PTFE conveyor belt is equipped with a retractable correction roller. Two lifting mechanisms are fixed on both sides of the frame. The top of the lifting mechanism supports the correction roller through a universal hinge bearing. Proximity switches are provided on both sides of the frame of the PTFE conveyor belt. The proximity switches can control the lifting and lowering of the lifting mechanisms.

[0005] Furthermore, the lifting mechanism uses an electrically controlled cylinder.

[0006] Furthermore, the corrective roller is horizontal in the standby state, and its length is greater than the width of the PTFE conveyor belt.

[0007] Furthermore, the proximity switch is used to monitor the distance between itself and the PTFE conveyor belt. When the distance is less than or equal to a set value, the proximity switch on that side is activated.

[0008] This application has the following advantages compared with the prior art:

[0009] This device is equipped with an automatically triggered proximity switch, which can react quickly and adjust when the PTFE conveyor belt shifts due to thermal expansion, reducing the number of shutdowns and ensuring the efficiency of material conveying. Attached Figure Description

[0010] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0011] Figure 1 This is a side view of Embodiment 1 of the present invention;

[0012] Figure 2 This is a top view of Embodiment 1 of the present utility model.

[0013] In the diagram: 1-Frame, 2-Drive roller, 3-PTFE transmission belt, 4-Microwave heating source, 5-Correction roller, 6-Universal hinge bearing, 7-Proximity switch, 8-Electrically controlled cylinder. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to help understand the content of the present invention.

[0015] Example 1, Reference Figure 1-2 This application provides an automatic correction device for microwave drying conveyor belt, including a frame 1, a drive roller 2, a PTFE conveyor belt 3 and a microwave heating source 4. The PTFE conveyor belt 3 is provided with a retractable correction roller 5. When the correction roller 5 is not extended (when in standby mode), its length is greater than the width of the PTFE conveyor belt 3.

[0016] The two ends of the correction roller 5 are connected to the top of the lifting mechanism through universal hinge bearings 6. Both lifting mechanisms are electrically controlled cylinders 8, and their bottoms are fixed on the frame 1.

[0017] Proximity switches 7 are provided on the frames 1 on both sides of the PTFE conveyor belt 3. The proximity switches 7 are used to monitor the distance between them and the PTFE conveyor belt 3. When the distance is less than or equal to the set value, the proximity switch 7 is turned on and controls its side electric control cylinder 8 to lift. When the distance is greater than the set value, the proximity switch 7 is not turned on, and its side electric control cylinder 8 does not work or lowers.

[0018] The working process of this device is as follows: During the drying process of the ternary precursor, when the PTFE conveyor belt 3 is heated and expands, it becomes elongated and loose, which can easily cause it to deviate. If the PTFE conveyor belt 3 gradually deviates to one side of the frame 1, it will trigger the proximity switch 7 on that side. The electric control cylinder 8 on that side will be energized and raised. At this time, the PTFE conveyor belt 3 is corrected and gradually returns to its original position. During the process, the proximity switch 7 on that side detects that the PTFE conveyor belt 3 has exceeded the set distance. Then, the proximity switch 7 sends a command to the electric control cylinder 8 to descend, and the correction roller 5 returns to a horizontal state.

[0019] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the structure and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A microwave drying conveyor belt automatic correction device, comprising a rack (1), a drive roller (2), a Teflon conveyor belt (3) and a microwave heating source (4), characterized in that, The four fluorine transmission belt (3) is provided with a telescopic correction roller (5), two lifting mechanisms are fixed on the both sides of the frame (1), the lifting mechanisms are supported by universal hinge bearings (6) at the top and support the correction roller (5), the frame (1) on the both sides of the four fluorine transmission belt (3) is provided with a proximity switch (7), and the proximity switch (7) can control the lifting and lowering of the lifting mechanism.

2. A microwave drying conveyor belt automatic correction device according to claim 1, characterized in that, The lifting mechanism is an electric control cylinder (8).

3. A microwave drying conveyor belt automatic correction device according to claim 1, characterized in that, The correction roller (5) is horizontal in the standby state, and the length is greater than the width of the four fluorine transmission belt (3).

4. A microwave drying conveyor belt automatic correction device according to claim 1, wherein, The proximity switch (7) is used for monitoring the distance between the proximity switch (7) and the four fluorine transmission belt (3), and when the distance is less than or equal to a set value, the proximity switch (7) on the side is turned on.