Fireproof cotton gin

By introducing a static reduction mechanism into the cotton gin, using conductive rubber and carbon brush grounding to eliminate static electricity, and combining it with high-frequency ion air bars and non-contact electrostatic meter monitoring, the problem of excessive static voltage in the cotton gin has been solved, thus improving safety and fire resistance.

CN224092060UActive Publication Date: 2026-04-07XIANGYANG CHENGXINGFENG COTTON IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing cotton gins can generate static voltages of 15-25kV when processing cotton fibers, far exceeding the minimum ignition energy of cotton. Traditional equipment cannot effectively eliminate the continuously generated static charge, posing a fire hazard.

Method used

The electrostatic discharge mechanism includes conductive rubber, carbon brushes, grounding rods, non-contact electrometers, and PLC controllers. The conductive rubber transmits static electricity to the carbon brushes and grounds them to eliminate the static electricity. High-frequency ion air bars are used to reduce static electricity. The static voltage is monitored in real time, and the feed rate is adjusted by a servo motor to achieve dynamic elimination of static electricity.

Benefits of technology

It effectively eliminates static charge generated during the operation of the cotton gin, monitors static voltage in real time, automatically adjusts the cotton feed, reduces fire hazards, and improves safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cotton ginning machines, and discloses a fireproof cotton ginning machine which comprises a cotton ginning machine body, a feeding hopper is fixedly installed on the top of the cotton ginning machine body, and a reduction mechanism is arranged in the cotton ginning machine body. According to the fireproof cotton ginning machine, by arranging the reduction mechanism, cotton raw materials are put into the feeding hopper, the cotton ginning roller rotates at a high speed to conduct cotton ginning by starting a PLC, static electricity generated outside the cotton ginning roller is transmitted to a carbon brush through conductive rubber to be grounded to be eliminated through the conductive rubber, and cotton finished products fall into an elimination box from a discharging pipe; static electricity in cotton is reduced through the high-frequency ion wind bar, the voltage is monitored in real time through the non-contact electrometer, when the static voltage is too high, the rotating speed of the servo motor is adjusted to be reduced through the PLC, and therefore the feeding amount is reduced, and the reduction mechanism can eliminate continuously generated static charges, monitor static low voltage in real time and automatically adjust the cotton feeding amount. And fire hazards are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of cotton ginning machine technology, specifically a fireproof cotton ginning machine. Background Technology

[0002] A cotton gin is a machine used for cotton processing. Its main function is to separate the lint from the cottonseed in the cotton fibers while ensuring that the quality of the cotton fibers and the cottonseed are not damaged. Common types include saw gins and roller gins. With the continuous development of cotton gins, the fire risk caused by static electricity accumulation in fiber processing equipment such as cotton gins does exist and cannot be ignored. When cotton fibers rub against metal rollers, the static voltage can reach 15-25kV (far exceeding the ignition threshold). Traditional cotton gins may have 1.2-1.8 electrostatic spark events per thousand hours of operation, of which about 18% of the sparks will ignite the fibers (the probability doubles when the oxygen concentration is >12%). Therefore, fireproof cotton gins have emerged, such as a fireproof cotton gin.

[0003] Currently, cotton gins on the market are mainly improved for the rapid separation of cotton fibers and seeds. Existing cotton gins mainly consist of a feed hopper, ginning roller assembly, conveying assembly, and control system. The control system starts the ginning roller assembly to separate cotton fibers and seeds. Although it can quickly separate cotton fibers and seeds and convey them, existing cotton gins require processing a large amount of cotton material. The ginning roller assembly rotates at high speed for a long time, rubbing against the cotton fibers, and the static electricity generated can reach a voltage of 15-25kV, far exceeding the minimum ignition energy of cotton. Traditional equipment only uses a single grounding method, which cannot dynamically eliminate the continuously generated static charge, posing a fire hazard. Therefore, a fireproof cotton gin is proposed that can eliminate the continuously generated static charge, monitor the low static voltage in real time, and automatically adjust the cotton feed to reduce the fire hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fireproof cotton ginning machine. It has the advantages of eliminating continuously generated static charge, real-time monitoring of low electrostatic voltage, automatic adjustment of cotton feed, and reducing fire hazards. It solves the problem that existing cotton ginning machines require processing large amounts of cotton material, and the ginning roller assembly rotates at high speed for a long time, rubbing against the cotton fibers, generating static voltages of up to 15-25kV, far exceeding the minimum ignition energy of cotton. Traditional equipment only uses a single grounding method, which cannot dynamically eliminate the continuously generated static charge, thus posing a fire hazard.

[0005] To achieve the above-mentioned goals of eliminating continuously generated static charge, monitoring static low voltage in real time, automatically adjusting cotton feed, and reducing fire hazards, this utility model provides the following technical solution: a fireproof cotton gin, including a cotton gin body, a feed hopper fixedly installed on the top of the cotton gin body, and a reduction mechanism provided inside the cotton gin body;

[0006] The reduction mechanism includes a ginning roller, conductive rubber, carbon brush, conveyor belt, elimination box, high-frequency ion air bar, feeding pipe, and storage box. The ginning roller is installed inside the ginning machine body, and conductive rubber is installed on the outside of the ginning roller. Carbon brush is fixedly installed inside the ginning machine body. The conveyor belt is installed at the bottom of the ginning machine body, and the elimination box is installed at the top of the conveyor belt. The high-frequency ion air bar is installed inside the elimination box. The feeding pipe is fixedly installed at the bottom of the ginning machine body, and the storage box is installed on the right side of the feed hopper.

[0007] Furthermore, a servo motor is fixedly installed inside the feed hopper, and eight tilting plates are fixedly installed outside the servo motor. By setting the servo motor, the speed of the servo motor can be controlled by the PLC controller, thereby adjusting the feeding speed of the cotton material.

[0008] Furthermore, a junction box is fixedly installed on the left side of the ginning machine body. The junction box is electrically connected to the carbon brush. A metal grounding rod is fixedly installed at the bottom of the junction box. By setting up the junction box, the grounding wires of the internal carbon brushes and the external grounding wires can be connected together, and then the static electricity can be eliminated by grounding through the metal grounding rod.

[0009] Furthermore, a non-contact electrometer is fixedly installed inside the cotton gin body, and an oxygen concentration sensor is fixedly installed inside the feed hopper. The use of a non-contact electrometer facilitates real-time monitoring of the internal static electricity of the cotton gin body.

[0010] Furthermore, a PLC controller is fixedly installed on the front of the cotton ginning machine body. The PLC controller is electrically connected to the cotton ginning roller, high-frequency ion air bar, servo motor, non-contact electrometer and oxygen concentration sensor through wires.

[0011] Furthermore, the number of the high-frequency ion air bars is several, and the several high-frequency ion air bars are evenly distributed on the inner walls of the front and rear of the elimination box.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This fire-resistant cotton gin, through the installation of a static electricity dissipation mechanism, eliminates static charges. During normal operation, cotton raw materials are fed into the hopper. By activating the PLC controller, the ginning rollers rotate at high speed, distributing static electricity generated outside the rollers through conductive rubber to carbon brushes. The static electricity is then eliminated by grounding the machine via a junction box. Finished cotton falls from the feed pipe into the elimination box, where high-frequency ionizers further reduce static electricity. A non-contact electrostatic meter monitors the voltage in real time. When the static voltage is too high, the PLC controller adjusts the servo motor speed to reduce the feed rate. This dissipation mechanism effectively eliminates continuously generated static charges, monitors low static voltage in real time, and automatically adjusts the cotton feed rate, thus reducing fire hazards. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the structure of this utility model;

[0016] Figure 3 This is a diagram showing the external structure of the embossing roller of this utility model;

[0017] Figure 4 This is a top view of the elimination box of this utility model.

[0018] In the diagram: 1. Cotton ginning machine body; 2. Feed hopper; 3. Elimination mechanism; 301. Cotton ginning roller; 302. Conductive rubber; 303. Carbon brush; 304. Conveyor belt; 305. Elimination box; 306. High-frequency ion air bar; 307. Feed pipe; 308. Storage box; 4. Servo motor; 5. Tilting plate; 6. Junction box; 7. Non-contact electrometer; 8. Oxygen concentration sensor; 9. PLC controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 A fireproof cotton ginning machine in this embodiment includes a cotton ginning machine body 1, a feed hopper 2 fixedly installed on the top of the cotton ginning machine body 1, and a reduction mechanism 3 provided inside the cotton ginning machine body 1.

[0021] The reduction mechanism 3 includes a ginning roller 301, conductive rubber 302, carbon brush 303, conveyor belt 304, elimination box 305, high-frequency ion air bar 306, feeding pipe 307, and storage box 308. The ginning machine body 1 is equipped with a ginning roller 301 inside, and conductive rubber 302 is provided on the outside of the ginning roller 301. The carbon brush 303 is fixedly installed inside the ginning machine body 1. The bottom of the ginning machine body 1 is equipped with a conveyor belt 304. The top of the conveyor belt 304 is equipped with an elimination box 305. The inside of the elimination box 305 is equipped with a high-frequency ion air bar 306. The bottom of the ginning machine body 1 is fixedly installed with a feeding pipe 307. The right side of the feed hopper 2 is equipped with a storage box 308.

[0022] In the implementation of the case, a junction box 6 is fixedly installed on the left side of the cotton gin body 1. The junction box 6 is electrically connected to the carbon brush 303. A metal grounding rod is fixedly installed at the bottom of the junction box 6. By setting the junction box 6, the grounding wire of the carbon brush 303 inside can be connected together, and then the grounding is achieved through the metal grounding rod to eliminate static electricity. The inside of the cotton gin body 1 is equipped with various rotating roller assemblies. Carbon brushes 303 are installed on the outside of each rotating roller assembly, so that static electricity is discharged through the carbon brushes 303 and connected to the ground through the junction box 6 to eliminate static electricity.

[0023] In the case implementation, a non-contact electrometer 7 is fixedly installed inside the ginning machine body 1, and an oxygen concentration sensor 8 is fixedly installed inside the feed hopper 2. By setting up the non-contact electrometer 7, it is possible to monitor the internal static electricity of the ginning machine body 1 in real time. By setting up the oxygen concentration sensor 8, it is possible to monitor when the oxygen content in the incoming air is greater than 12%, and reduce the cotton feed amount.

[0024] In the implementation of the case, a servo motor 4 is fixedly installed inside the feed hopper 2, and eight tilting plates 5 are fixedly installed outside the servo motor 4. By setting the servo motor 4, the speed of the servo motor 4 can be controlled by the PLC controller 9, thereby adjusting the feeding speed of the cotton material, and thus reducing the amount of cotton entering when the monitoring voltage is large.

[0025] In the implementation of the case, a PLC controller 9 is fixedly installed on the front of the cotton ginning machine body 1. The PLC controller 9 is electrically connected to all electronic components in this patent through wires, so that all electronic components in this patent can be controlled by operating the PLC controller 9.

[0026] When implementing this procedure, please follow these steps:

[0027] 1) First, when the cotton gin is working normally, put the cotton raw material into the feed hopper 2;

[0028] 2) Then, by turning on the PLC controller 9, the ginning roller 301 is made to rotate at high speed to gin the ginning. Through the conductive rubber 302, the static electricity generated outside the ginning roller 301 is transmitted to the carbon brush 303, and then the static electricity is eliminated by connecting it to the ground through the junction box 6.

[0029] 3) The finished cotton product falls from the feed pipe 307 into the elimination box 305, where the static electricity in the cotton is reduced by the high-frequency ion air bar 306;

[0030] 4) Finally, the voltage is monitored in real time by setting a non-contact electrostatic meter 7. When the electrostatic voltage is too high, the speed of the servo motor 4 is reduced by the PLC controller 9, thereby reducing the amount of feed.

[0031] In summary, this fireproof cotton gin, through the setting of a static reduction mechanism 3, allows for the following: When the cotton raw material is placed into the feed hopper 2 during normal operation, the PLC controller 9 is activated, causing the ginning roller 301 to rotate at high speed. Static electricity generated outside the ginning roller 301 is transferred to the carbon brush 303 via the conductive rubber 302, and then grounded to the ground through the junction box 6 to eliminate static electricity. The finished cotton product falls from the feed pipe 307 into the elimination box 305, where the high-frequency ion air bar 306 reduces static electricity in the cotton. A non-contact electrostatic meter 7 monitors the voltage in real time. When the static voltage is too high, the PLC controller 9 adjusts the speed of the servo motor 4 to reduce the feed rate. This static reduction mechanism 3 can eliminate continuously generated static charge, monitor low static voltage in real time, automatically adjust the cotton feed rate, and reduce fire hazards.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fireproof cotton ginning machine, comprising a cotton ginning machine body (1), characterized in that: The top of the cotton gin body (1) is fixedly installed with a feed hopper (2), and the inside of the cotton gin body (1) is provided with a reduction mechanism (3). The reduction mechanism (3) includes a ginning roller (301), conductive rubber (302), carbon brush (303), conveyor belt (304), elimination box (305), high-frequency ion air bar (306), feeding pipe (307) and storage box (308). The ginning machine body (1) is equipped with a ginning roller (301) inside, and conductive rubber (302) is provided on the outside of the ginning roller (301). The carbon brush (303) is fixedly installed inside the ginning machine body (1). The bottom of the ginning machine body (1) is equipped with a conveyor belt (304). The top of the conveyor belt (304) is equipped with an elimination box (305). The inside of the elimination box (305) is equipped with a high-frequency ion air bar (306). The bottom of the ginning machine body (1) is fixedly installed with a feeding pipe (307). The right side of the feed hopper (2) is equipped with a storage box (308).

2. The fireproof cotton ginning machine according to claim 1, characterized in that: A servo motor (4) is fixedly installed inside the feed hopper (2), and eight tilting plates (5) are fixedly installed outside the servo motor (4).

3. A fire-resistant cotton ginning machine according to claim 1, characterized in that: A junction box (6) is fixedly installed on the left side of the cotton gin body (1). The junction box (6) is electrically connected to the carbon brush (303). A metal grounding rod is fixedly installed at the bottom of the junction box (6).

4. A fire-resistant cotton ginning machine according to claim 1, characterized in that: A non-contact electrometer (7) is fixedly installed inside the body (1) of the cotton gin, and an oxygen concentration sensor (8) is fixedly installed inside the feed hopper (2).

5. A fire-resistant cotton ginning machine according to claim 1, characterized in that: A PLC controller (9) is fixedly installed on the front of the cotton ginning machine body (1). The PLC controller (9) is electrically connected to the cotton ginning roller (301), high-frequency ion air bar (306), servo motor (4), non-contact electrometer (7) and oxygen concentration sensor (8) through wires.

6. A fire-resistant cotton ginning machine according to claim 1, characterized in that: The number of high-frequency ion air bars (306) is several, and the several high-frequency ion air bars (306) are evenly distributed on the front and rear inner walls of the elimination box (305).