Pre-blocking prevention early warning production hopper for pitch-based carbon fiber

Abstract

The utility model relates to production hopper technical field especially, relates to a pitch base carbon fiber prevents early warning production hopper of blocking, including hopper main part, the support arm is fixedly installed on the hopper main part, the support arm one end is fixedly installed with drive motor, drive motor output end vertical fixed mounting has the rotating shaft, the rotating shaft rotation sets up in the hopper main part, be equipped with a plurality of scrapes in the hopper main part, a plurality of the scraper between the rotating shaft is connected through a plurality of connecting rods, a plurality of the connecting rod all present horizontal arrangement, a plurality of the scraper all with the inner wall sliding contact of hopper main part, the hopper main part lower extreme is connected with the discharge pipe. The utility model rotates through drive motor drive rotating shaft in the hopper main part, drives a plurality of scrapes connected by connecting rod and slides along the inner wall, and the scraper can directly destroy the material adhesion condition, always keeps the inside of hopper unobstructed, reduces the hidden danger of plugging from the source, guarantees material conveying efficiency and continuity.

Description

Technical Field

[0001] This utility model relates to the field of production hopper technology, and in particular to an asphalt-based carbon fiber anti-clogging and early warning production hopper. Background Technology

[0002] In the industrial production of pitch-based carbon fiber, the hopper is the core equipment for storing and transferring pitch-based carbon fiber precursors and semi-finished fibers. It directly affects the material supply efficiency and product quality of the production line. Once the conveying is interrupted, it will cause the subsequent equipment to run idle or be overloaded, leading to production stagnation.

[0003] During the production of pitch-based carbon fiber, pitch-based carbon fiber has significant viscoelasticity and surface tension characteristics. Under the action of gravity and material conveying pressure, it is very easy for it to adhere to the inner wall of the hopper. This accumulation phenomenon causes the flow cross section inside the hopper to be significantly reduced, which seriously affects the material conveying efficiency and continuity, and may eventually lead to material blockage accidents. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: In the production process of pitch-based carbon fiber, due to its significant viscoelasticity and surface tension characteristics, pitch-based carbon fiber is prone to adhesion to the inner wall of the hopper under the action of gravity and material conveying pressure. This accumulation phenomenon causes a significant reduction in the flow cross section inside the hopper, which seriously affects the material conveying efficiency and continuity, and may eventually lead to material blockage accidents. Therefore, this invention proposes a pitch-based carbon fiber anti-blockage early warning production hopper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pitch-based carbon fiber anti-clogging and early warning production hopper includes a hopper body, a support arm fixedly installed on the hopper body, and a drive motor fixedly installed at one end of the support arm;

[0007] The output end of the drive motor is vertically fixed with a rotating shaft, which is rotatably installed inside the hopper body. The hopper body is equipped with multiple scraper blades, which are connected to the rotating shaft by multiple connecting rods. All connecting rods are horizontally arranged, and all scraper blades slide in contact with the inner wall of the hopper body. The lower end of the hopper body is connected to a discharge pipe, which is equipped with an anti-clogging component to prevent blockage.

[0008] Preferably, the inner wall of the discharge pipe is symmetrically and vertically provided with limiting grooves, and the anti-blocking component includes a lifting plate that is vertically slidably installed in the discharge pipe through a reciprocating component and two unblocking rods that are vertically and symmetrically fixedly installed on the lifting plate. The two ends of the lifting plate are respectively vertically slidably installed in the two limiting grooves.

[0009] Preferably, the reciprocating component includes a transmission rod vertically fixedly installed at the lower end of the rotating shaft, the transmission rod having a reciprocating thread, and the middle part of the lifting plate having a threaded hole matching the reciprocating thread, the transmission rod being threadedly inserted into the threaded hole.

[0010] Preferably, each of the connecting rods is fixedly equipped with a cutting blade, which is horizontally positioned between the scraper and the rotating shaft.

[0011] Preferably, an infrared ranging sensor is fixedly installed on the support arm, with the output end of the infrared ranging sensor facing the inside of the hopper body. An early warning alarm is fixedly installed on the support arm, and the early warning alarm is electrically connected to the infrared ranging sensor.

[0012] Preferably, a wear-resistant rubber strip is fixedly installed on the side of the scraper away from the connecting rod, and the wear-resistant rubber strip is in contact with the inner wall of the hopper body.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The rotating shaft inside the hopper is driven by a drive motor, which drives multiple scraper blades connected by connecting rods to slide along the inner wall. The scraper blades can directly destroy the material adhesion conditions, keep the inside of the hopper unobstructed, reduce the risk of material blockage from the source, and ensure the efficiency and continuity of material conveying.

[0015] 2. The transmission rod at the lower end of the rotating shaft is threadedly engaged with the lifting plate. Combined with the guiding effect of the limiting groove on the lifting plate, the lifting plate drives the two unblocking rods to move vertically back and forth in the discharge pipe. This process can actively disperse the material accumulated in the discharge pipe and ensure the continuity of material conveying from the hopper to the subsequent equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an asphalt-based carbon fiber anti-clogging and early warning production hopper proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of an asphalt-based carbon fiber anti-clogging and early warning production hopper proposed in this utility model;

[0018] Figure 3 A three-dimensional structural diagram of the connecting rod, scraper, and cutting blade;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1 Hopper body, 2 Support arm, 3 Drive motor, 4 Rotating shaft, 5 Scraper, 6 Connecting rod, 7 Discharge pipe, 8 Lifting plate, 9 Unblocking rod, 10 Transmission rod, 11 Cutting blade, 12 Infrared ranging sensor, 13 Early warning alarm. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-2 A pitch-based carbon fiber anti-clogging early warning production hopper includes a hopper body 1, a support arm 2 fixedly installed on the hopper body 1, a drive motor 3 fixedly installed at one end of the support arm 2, a rotating shaft 4 vertically fixedly installed at the output end of the drive motor 3, the rotating shaft 4 being rotatably disposed inside the hopper body 1, multiple scraper blades 5 being provided inside the hopper body 1, the multiple scraper blades 5 being connected to the rotating shaft 4 by multiple connecting rods 6, the multiple connecting rods 6 being all horizontally arranged, the multiple scraper blades 5 being all slidingly contacting the inner wall of the hopper body 1, and a discharge pipe 7 being connected to the lower end of the hopper body 1, the discharge pipe 7 being provided with an anti-clogging component for preventing blockage.

[0023] The hopper body 1 is the core carrier for the storage and transfer of pitch-based carbon fiber precursors and semi-finished fibers. The support arm 2 provides stable installation support for the drive motor 3, ensuring that the drive motor 3 does not shift during operation. As a power source, the drive motor 3, after starting, can drive the rotating shaft 4 to rotate stably within the hopper body 1. When the rotating shaft 4 rotates, the power is transmitted to the scraper 5 through the horizontally set connecting rod 6, causing the scraper 5 to slide along the inner wall of the hopper body 1. By utilizing the sliding contact between the scraper 5 and the inner wall, the pitch-based carbon fiber material adhering to the inner wall of the hopper body 1 due to its viscoelasticity and surface tension characteristics is scraped off in real time, preventing material accumulation that would reduce the flow cross section inside the hopper. The discharge pipe 7 is used to transport the material in the hopper body 1 to subsequent equipment. The anti-clogging component is specifically designed to address the problem of easy clogging of the discharge pipe 7, ensuring smooth material conveying at the end.

[0024] Reference Figure 4 The inner wall of the discharge pipe 7 is symmetrically and vertically provided with limiting grooves. The anti-blocking component includes a lifting plate 8 that is vertically slidably installed in the discharge pipe 7 via a reciprocating component and two unblocking rods 9 that are vertically and symmetrically fixed on the lifting plate 8. The two ends of the lifting plate 8 are vertically slidably installed in the two limiting grooves respectively. The reciprocating component includes a transmission rod 10 that is vertically fixedly installed at the lower end of the rotating shaft 4. The transmission rod 10 is provided with a reciprocating thread. The middle part of the lifting plate 8 is provided with a threaded hole that matches the reciprocating thread. The transmission rod 10 is threadedly inserted into the threaded hole.

[0025] The limiting groove on the inner wall of the discharge pipe 7 guides and limits the lifting plate 8, preventing it from shifting horizontally or rotating during vertical movement and ensuring a stable trajectory. In the anti-blocking assembly, the lifting plate 8 serves as the mounting carrier for the unblocking rod 9, driving it to move synchronously. The transmission rod 10 is fixedly connected to the rotating shaft 4 and can rotate with it. The reciprocating threads on its surface engage with the threaded holes of the lifting plate 8, forming the core transmission structure of the reciprocating component. When the transmission rod 10 rotates, the meshing of the reciprocating threads and the threaded holes converts the lifting plate 8 into vertical reciprocating movement along the limiting groove, thereby driving the two symmetrically arranged unblocking rods 9 to move up and down within the discharge pipe 7, actively breaking up the material accumulated in the discharge pipe 7, preventing the material from caking and blocking within the discharge pipe 7, and ensuring the continuity of material transport from the hopper body 1 to subsequent equipment.

[0026] Reference Figure 3 Cutting blades 11 are fixedly installed on multiple connecting rods 6. The cutting blades 11 are horizontally positioned between the scraper 5 and the rotating shaft 4. The connecting rods 6 not only connect the rotating shaft 4 and the scraper 5, but also provide a stable installation position for the cutting blades 11. The cutting blades 11 are horizontally positioned between the scraper 5 and the rotating shaft 4 and can rotate with the rotating shaft 4 along with the connecting rods 6. During the storage and transfer of asphalt-based carbon fiber materials, the materials are prone to agglomeration or clumping due to pressure and viscosity. The rotating cutting blades 11 can cut and crush these large pieces of material, refining them into uniform particles. This not only improves the flowability of the material in the hopper body 1, but also prevents large pieces of material from getting stuck in the discharge pipe 7 and causing blockage, further optimizing the material conveying state.

[0027] An infrared ranging sensor 12 is fixedly installed on the support arm 2, with the output end of the infrared ranging sensor 12 facing the inside of the hopper body 1. An early warning alarm 13 is fixedly installed on the support arm 2, and the early warning alarm 13 is electrically connected to the infrared ranging sensor 12. The support arm 2 provides mounting support for the infrared ranging sensor 12 and the early warning alarm 13, ensuring that their positions are stable and do not affect the storage and conveying of materials in the hopper body 1. The output end of the infrared ranging sensor 12 faces the inside of the hopper body 1, and can detect the height of the materials in the hopper body 1 in real time. It converts the detected distance signal into an electrical signal. When the infrared ranging sensor 12 detects an abnormal increase in the material height, indicating that there may be a sign of material blockage in the hopper, it will immediately send an electrical signal to the early warning alarm 13, triggering the early warning alarm 13 to issue an audible and visual alarm, reminding the staff to intervene in time to avoid the blockage from expanding and causing the production line to stop.

[0028] A wear-resistant rubber strip is fixedly installed on the side of the scraper 5 away from the connecting rod 6. The wear-resistant rubber strip is in contact with the inner wall of the hopper body 1. The wear-resistant rubber strip is fixed on the side of the scraper 5 away from the connecting rod 6 and in contact with the inner wall of the hopper body 1. On the one hand, the rubber material has a certain degree of elasticity, which can enhance the adhesion between the scraper 5 and the inner wall and improve the scraping effect on the material adhering to the inner wall. Especially for the viscoelastic properties of asphalt-based carbon fiber, it can more thoroughly remove residual materials. On the other hand, the wear-resistant rubber strip can prevent the scraper 5 from directly contacting and rubbing against the inner wall of the hopper body 1, reducing the wear of both, extending the service life of the scraper 5 and the hopper body 1, and reducing equipment maintenance costs.

[0029] In this invention, the drive motor 3 serves as a power source. After starting, its output end can drive the rotating shaft 4 to rotate stably within the hopper body 1. When the rotating shaft 4 rotates, the power is transmitted to the scraper 5 through the horizontally set connecting rod 6, causing the scraper 5 to slide along the inner wall of the hopper body 1. By utilizing the sliding contact between the scraper 5 and the inner wall, the asphalt-based carbon fiber material adhering to the inner wall of the hopper body 1 due to its viscoelasticity and surface tension properties is scraped off in real time, preventing material accumulation that would reduce the internal flow cross-section of the hopper. This reduces the risk of material blockage from the source and ensures the efficiency and continuity of material conveying.

[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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pitch-based carbon fiber anti-clogging early warning production hopper, comprising a hopper body (1), characterized in that, A support arm (2) is fixedly installed on the hopper body (1), and a drive motor (3) is fixedly installed at one end of the support arm (2). The output end of the drive motor (3) is vertically fixed with a rotating shaft (4). The rotating shaft (4) is rotatably arranged inside the hopper body (1). The hopper body (1) is provided with multiple scraper blades (5). The multiple scraper blades (5) are connected to the rotating shaft (4) by multiple connecting rods (6). The multiple connecting rods (6) are all horizontally arranged. The multiple scraper blades (5) are all in sliding contact with the inner wall of the hopper body (1). The lower end of the hopper body (1) is connected to a discharge pipe (7). The discharge pipe (7) is provided with an anti-blocking component to prevent blockage.

2. The asphalt-based carbon fiber anti-clogging early warning production hopper according to claim 1, characterized in that, The inner wall of the discharge pipe (7) is symmetrically and vertically provided with limiting grooves. The anti-blocking component includes a lifting plate (8) that is vertically slidably installed in the discharge pipe (7) through a reciprocating component and two unblocking rods (9) that are vertically and symmetrically fixed on the lifting plate (8). The two ends of the lifting plate (8) are respectively vertically slidably installed in the two limiting grooves.

3. The asphalt-based carbon fiber anti-clogging early warning production hopper according to claim 2, characterized in that, The reciprocating component includes a transmission rod (10) that is vertically fixedly installed at the lower end of the rotating shaft (4). The transmission rod (10) has a reciprocating thread, and the middle part of the lifting plate (8) has a threaded hole that matches the reciprocating thread. The transmission rod (10) is threaded into the threaded hole.

4. The asphalt-based carbon fiber anti-clogging early warning production hopper according to claim 1, characterized in that, Cutting blades (11) are fixedly installed on each of the multiple connecting rods (6), and the cutting blades (11) are horizontally arranged between the scraper (5) and the rotating shaft (4).

5. The asphalt-based carbon fiber anti-clogging early warning production hopper according to claim 1, characterized in that, An infrared ranging sensor (12) is fixedly installed on the support arm (2). The output end of the infrared ranging sensor (12) faces the inside of the hopper body (1). An early warning alarm (13) is fixedly installed on the support arm (2). The early warning alarm (13) is electrically connected to the infrared ranging sensor (12).

6. The asphalt-based carbon fiber anti-clogging early warning production hopper according to claim 1, characterized in that, A wear-resistant rubber strip is fixedly installed on the side of the scraper (5) away from the connecting rod (6), and the wear-resistant rubber strip is in contact with the inner wall of the hopper body (1).

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