Anti-agglomerated short-cut carbon fiber flocking feed device

Abstract

This invention relates to the field of feeding devices, specifically to an anti-agglomeration short-cut carbon fiber flocking feeding device, comprising a processing box for crushing and screening fibers. A feeding assembly is connected to the bottom of the processing box, and a storage hopper is connected to the bottom of the feeding assembly for collecting the processed fibers. A discharge assembly is connected to the bottom of the storage hopper. Two rotating rods are rotatably connected through the upper and middle sections of the processing box. Toothed rollers and gears are fixedly connected to the outer rings of the rotating rods. A motor is fixedly connected to the outside of the processing box, and its output end is fixedly connected to the rear rotating rods. A sprocket is fixedly connected to the outer rings of both the upper and lower rotating rods at the rear. By setting up a multi-layered rotating rod + toothed roller multi-stage tearing structure, combined with synchronous transmission of gears and chains, the agglomerated fibers are gradually torn apart and dispersed, resulting in a strong initial dispersing effect.

Description

Technical Field

[0001] This invention relates to the field of feeding device technology, specifically to a feeding device for anti-agglomeration short-cut carbon fiber flocking. Background Technology

[0002] Short-cut carbon fiber is widely used in flocking, composite materials and other fields due to its advantages such as high strength, lightweight and corrosion resistance. In flocking production, the dispersion and uniformity of short-cut carbon fiber directly determine the surface quality, adhesion and mechanical properties of the flocked product.

[0003] During the feeding process of chopped carbon fiber flocking, due to the electrostatic adsorption and high inter-fiber friction of carbon fiber, agglomeration is very likely to occur. At the same time, the raw material may contain long fibers that are not completely chopped. If the material is fed directly, it will lead to uneven flocking, inconsistent flocking density, equipment blockage and other problems, which will seriously affect production efficiency and product quality.

[0004] Existing feeding devices lack effective anti-agglomeration structures. Short-cut carbon fibers are prone to agglomeration due to static electricity and fiber entanglement, making it impossible to disperse them evenly during feeding. This results in lumps and gaps on the flocking surface, affecting product quality. Uncut long fibers mixed in the raw materials, if fed directly without treatment, will clog the spinneret and conveying channel of the flocking equipment, and also affect the uniformity of flocking. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an anti-agglomeration short-cut carbon fiber flocking feeding device, which solves the problems of prominent carbon fiber agglomeration, poor dispersibility, lack of multi-stage crushing and screening, and inconvenience in removing long fibers in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a feeding device for anti-agglomeration short-cut carbon fiber flocking, comprising a processing box for crushing and screening fibers, a feeding component connected to the bottom of the processing box, a storage bin connected to the bottom of the feeding component, the storage bin for collecting the processed fibers, and a discharge component connected to the bottom of the storage bin. Two rotating rods are rotatably connected through the upper and middle parts of the processing box. A toothed roller and a gear are fixedly connected to the outer ring of each rotating rod. A motor is fixedly connected to the outside of the processing box, and its output end is fixedly connected to the rear rotating rod. A sprocket is fixedly connected to the outer ring of both the upper and lower rotating rods at the rear. A screening assembly is located at the lower part of the processing box. Two rotating rods are rotatably connected through the right side of the processing box. An eccentric wheel is fixedly connected to one inward end of each rotating rod, and the eccentric wheel is located below the screen plate. A sprocket is fixedly connected to the outer ring of both rotating rods. A discharge port is opened through the left side of the processing box. A return channel is fixedly connected to the left side of the processing box, and a blower is fixedly connected to the bottom of the return channel. A recovery hood is fixedly connected through the front end of the processing box. A filter box is fixedly connected to the front end of the processing box. An exhaust fan is located below the filter box. Exhaust pipes are fixedly connected through the top and bottom of the filter box. A filter box is located inside the filter box.

[0007] Preferably, the feeding assembly includes a feeding channel, the top of which is fixedly connected to the processing box and the bottom of which is fixedly connected to the storage bin. An air pump is fixedly connected to the front end of the feeding channel, and a diverter pipe is fixedly connected to the output end of the air pump. Multiple blowers are fixedly connected to the outside of the diverter pipe and are also fixedly connected to the feeding channel. An ion bar is fixedly connected to the rear end of the feeding channel, and the output end of the ion bar communicates with the inside of the feeding channel.

[0008] Preferably, the screening assembly includes a support frame, which is fixedly connected to the inner wall of the processing box. A spring is fixedly connected to the top of the support frame, and a screen plate is fixedly connected to the top of the spring. An eccentric wheel is disposed below the screen plate.

[0009] Preferably, the gears are located on the outside of the processing box, and the two gears are meshed with each other. The first sprocket is located on the outside of the gears, and a first chain is sleeved between the two first sprockets, and the first chain is meshed with the first sprocket.

[0010] Preferably, the second sprocket is located on the outside of the processing box, and a second chain is sleeved between the two second sprockets, and the second chain is engaged with the second sprocket.

[0011] Preferably, both the rear rotating rod and the rear rotating rod end are fixedly connected to a sprocket three, and a chain three is sleeved between the two sprocket threes, and the chain three is meshed with the sprocket threes.

[0012] Preferably, the lower outer side of the reflux channel communicates with the discharge port, and the upper part of the reflux channel extends through and is fixedly connected to the upper part of the processing box.

[0013] Preferably, the top exhaust pipe extends through and is fixedly connected to the recovery hood, and the bottom exhaust pipe is fixedly connected to the exhaust fan output end.

[0014] Preferably, both sides of the processing box are fixedly connected to a fixing frame, and the inner side of the fixing frame is also fixedly connected to the storage bin and the feeding cylinder.

[0015] Preferably, the discharge assembly includes a feeding cylinder, the top of which is connected to the bottom of the storage bin through and fixedly connected, a spiral conveying rod is connected through and rotatably connected inside the feeding cylinder, a second motor is fixedly connected to the outside of the feeding cylinder, and the output end of the second motor is fixedly connected to the spiral conveying rod, and a discharge cylinder is connected through and fixedly connected to the lower end of the feeding cylinder.

[0016] Working principle: Short-cut carbon fiber raw materials are fed into the equipment through the feed cylinder at the top of the processing box. Once the motor starts, it drives the upper rear rotating rod to rotate, which in turn drives the front and rear rotating rods to rotate synchronously in opposite directions through the outer meshing gear. At the same time, the upper and lower sets of rotating rods at the rear end are linked by a sprocket and a chain, so that the upper and lower toothed rollers rotate synchronously. The multi-layer toothed rollers form a multi-stage tearing and crushing structure inside the processing box. The outer teeth of the toothed rollers are used to shear, tear and disperse the clumps, entanglements and bridging of the short-cut carbon fibers in stages, forcibly breaking down the fiber agglomeration structure and completing the initial dispersal of the material.

[0017] After being initially dispersed by the toothed rollers, the mixture falls into the screening component area inside the box. The screening component consists of a support frame, springs, and a screen plate. The end of the rear rotating rod drives the rear rotating rod to rotate synchronously via sprocket three and chain three. The two sets of rotating rods rotate synchronously through the linkage of sprocket two and chain two, driving the eccentric wheel to continuously push the screen plate back and forth at high speed. Under the elastic cooperation of the springs and the periodic pushing action of the eccentric wheel, the screen plate forms a high-frequency reciprocating tilting vibration, which performs graded screening of the falling fibers: single, qualified, short-cut carbon fibers can pass smoothly through the screen plate mesh and fall down, while large, undispersed fiber clumps and agglomerates are trapped on the inclined screen plate surface.

[0018] The fiber clumps trapped on the inclined screen plate move to the left with the vibration and enter the return channel through the discharge port on the left side of the processing box. The bottom of the return channel is equipped with a blower that continuously delivers directional airflow upwards, blowing the clumped fibers back to the toothed roller dispersing area at the top of the processing box. This achieves secondary circulation and dispersal of unqualified clumped materials, prevents fiber clumps from being directly discharged, and ensures the qualified rate of material dispersal.

[0019] After passing through the sieve plate, qualified fibers fall continuously into the material discharge channel connected to the bottom of the processing box. An air pump outside the material discharge channel, in conjunction with a diverter pipe and multiple sets of blowers, delivers a low-speed, uniform, directional airflow into the channel. Simultaneously, an ion bar installed at the rear continuously releases neutralizing ions into the channel. This airflow achieves secondary dispersion of the fibers, preventing secondary entanglement during the fall. The ion wind quickly neutralizes the static electricity generated by the friction of the chopped carbon fibers, completely eliminating electrostatic adsorption and agglomeration, ensuring that the fibers remain in a single, free state at all times.

[0020] After thorough dispersion and elimination of static electricity, the pure fibers flow into the sealed storage silo below via a feeding channel for centralized temporary storage. The storage silo is completely sealed to prevent fiber spillage. The bottom of the storage silo is connected to the discharge assembly. A motor drives the spiral conveyor inside the feeding cylinder to rotate at a constant speed. Relying on the equidistant pushing action of the spiral blades, the fibers in the storage silo are conveyed at a constant, quantitative, and uniform speed. The material is finally discharged stably through the discharge cylinder, providing continuous and uniform feeding for the subsequent flocking process. The controllable spiral speed ensures stable surface density, solving the problem of inconsistent feeding. A level sensor installed inside the storage silo monitors the material level in real time. Working in conjunction with the discharge assembly, a variable frequency motor adjusts the discharge speed to achieve continuous and stable quantitative feeding, ensuring uniform surface density in subsequent flocking processes.

[0021] The device is equipped with a negative pressure recovery and reuse system. A recovery hood is installed at the front of the processing box, and an exhaust fan creates negative pressure suction in the recovery hood area through the exhaust pipe. Fine carbon fiber fluff and excess free fibers generated during the operation are collected in real time. The dust-laden airflow enters the filter box, where solid-gas separation is completed. Short-cut fibers are trapped and filtered, and clean air is discharged outward. The collected and filtered qualified fluff can be uniformly recycled. It is manually returned to the storage silo through a recovery cylinder outside the storage silo for reuse, achieving zero waste of raw materials. The device is also equipped with a negative pressure recovery system. Similarly, the recovery hood of the other negative pressure recovery system is connected to the flocking operation chamber, which sucks up excess fibers generated during the flocking process in real time, collects them through the filter box, and then sends them to the storage silo for reuse.

[0022] This invention provides a feeding device for preventing agglomeration of short-cut carbon fiber flocking. It has the following beneficial effects: 1. This invention employs a multi-layered rotating rod and toothed roller tearing structure, coupled with gear and chain synchronous transmission, to gradually tear and break up clumps of fiber, resulting in a strong initial dispersing effect. The vibrating screening assembly, consisting of an eccentric wheel, spring, and screen plate, automatically intercepts any undispersed fiber clumps. These clumps are then forced back through the discharge port, return channel, and blower to form a secondary dispersing loop, preventing unqualified clumps from being discharged and ensuring thorough dispersing without any blind spots. During this process, the gear, sprocket, and chain triple-linkage transmission utilizes the same power source to drive the dispersing toothed roller and vibrating screen plate, resulting in high structural integration, good synchronization, simplified control, and reduced failure rate and energy consumption.

[0023] 2. This invention, by adding an ion air bar and an airflow dispersion blowing structure, actively neutralizes static electricity and homogenizes and disperses airflow in the material discharge channel, eliminating electrostatic adsorption at the source, avoiding secondary fiber agglomeration, and ensuring the dispersion of flocked fibers. Combined with a spiral quantitative discharge component consisting of a motor, a spiral conveyor, and a feeding cylinder, continuous, constant, and controllable quantitative feeding is achieved through uniform and forced feeding by the spiral. The material discharge is uniform and stable. At the same time, the device integrates a recovery hood, a filter box, a filter housing, and an exhaust fan to form a negative pressure recovery unit. The sealed negative pressure sucks up floating fly and excess fibers, and filters out qualified materials for reuse, achieving zero fly leakage, low raw material loss, and a clean working environment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the screening component structure of the present invention; Figure 4 This is a schematic diagram of the filter box structure of the present invention; Figure 5 This is a side view of the present invention.

[0025] The components are as follows: 1. Processing box; 2. Rotating rod; 3. Toothed roller; 4. Gear; 5. Motor 1; 6. Sprocket 1; 7. Chain 1; 8. Support frame; 9. Spring; 10. Screen plate; 11. Rotating rod; 12. Eccentric wheel; 13. Sprocket 2; 14. Chain 2; 15. Discharge port; 16. Return channel; 17. Blower; 18. Drop channel; 19. Air pump; 20. Diverter pipe; 21. Blower head; 22. Ionizing air bar; 23. Storage bin; 24. Feed cylinder; 25. Screw conveyor rod; 26. Motor 2; 27. Discharge cylinder; 28. Recovery cover; 29. ​​Filter box; 30. Exhaust fan; 31. Exhaust pipe; 32. Filter box; 33. Fixing frame; 34. Sprocket 3; 35. Chain 3. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0027] like Figure 1-5As shown, this embodiment of the invention provides an anti-agglomeration short-cut carbon fiber flocking feeding device, including a processing box 1, which is used to crush and screen the fiber. A feeding component is connected to the bottom of the processing box 1, and a storage bin 23 is connected to the bottom of the feeding component. The storage bin 23 is used to collect the processed fiber, and a discharge component is connected to the bottom of the storage bin 23. Two rotating rods 2 are rotatably connected through the upper and middle parts of the processing box 1. A toothed roller 3 and a gear 4 are fixedly connected to the outer ring of each rotating rod 2. A motor 5 is fixedly connected to the outside of the processing box 1, and the output end of the motor 5 is fixedly connected to the rear rotating rod 2. A sprocket 6 is fixedly connected to the outer ring of both the upper and lower rotating rods 2 at the rear. A screening assembly is located at the lower part of the processing box 1. Two rotating rods 11 are rotatably connected through the right side of the processing box 1. An eccentric wheel 12 is fixedly connected to one inward end of each rotating rod 11. The eccentric wheel 12 is positioned... Below the sieve plate 10, two sprockets 13 are fixedly connected to the outer rings of the two rotating rods 11. A discharge port 15 is provided through the left side of the processing box 1. A return channel 16 is fixedly connected to the left side of the processing box 1. A blower 17 is fixedly connected to the bottom of the return channel 16. A recovery cover 28 is provided through the front end of the processing box 1. A filter box 29 is fixedly connected to the front end of the processing box 1. An exhaust fan 30 is provided below the filter box 29. An exhaust pipe 31 is provided through the top and bottom of the filter box 29. A filter box 32 is provided inside the filter box 29.

[0028] Specifically, the main supporting frame of the device is a fixed frame 33, and a controller (not shown in the figure) is also installed on the outside of the fixed frame 33. The fixed frame 33 is welded from 304 stainless steel square tubes with a thickness of 5mm and the surface is treated with anti-static spraying. The processing box 1, the material discharge channel 18, the storage bin 23 and the feeding cylinder 24 are fixedly connected to the inside of the fixed frame 33 from top to bottom.

[0029] Multi-stage tearing structure and parameters: Two rotating rods 2 are rotatably connected through the upper and middle parts of the processing box 1. Toothed rollers 3 are fixedly connected to the outer rings of all four rotating rods 2. The toothed rollers 3 are made of wear-resistant and anti-static alloy steel, with polished tooth surfaces to reduce fiber friction, static electricity generation, and adhesion. The surface of the toothed rollers 3 has a three-dimensional interlaced "wolf tooth" serrated structure with a tooth pitch of 3mm-5mm. The teeth of the upper and lower layers of toothed rollers 3 form a micro-meshing gap of 1mm-2mm during rotation, achieving strong shearing and tearing of short-cut carbon fibers.

[0030] Transmission assembly process and linkage logic: A motor 5 (preferably a 3kW AC variable frequency speed control motor with an adjustable speed range of 300-800r / min) is fixedly connected to the outside of the processing box 1. The output end of motor 5 is directly connected to the rotating rod 2 on the upper rear side. The two rotating rods 2 are meshed with each other through the outer gear 4 to achieve synchronous reverse rotation. At the same time, the two rotating rods 2 on the upper and lower rear sides are driven by sprocket 6 and chain 7, so that the upper and lower toothed rollers 3 operate synchronously.

[0031] The same power source linkage mechanism: the upper end of the rotating rod 2 at the rear end is connected to the lower rotating rod 11 via sprocket 34 and chain 35; the two rotating rods 11 are connected via sprocket 213 and chain 214. The eccentric wheel 12 at the end of the rotating rod 11 (eccentricity set to 5mm-8mm) periodically pushes the screen plate 10 during rotation. This design allows the "crushing and dispersing" and "high-frequency vibrating screening" actions of the entire equipment to be driven by a single motor 5, achieving a high degree of mechanical synchronization and significantly reducing equipment energy consumption and electrical control failure rate. Due to the inclined angle of the screen plate 10, the intercepted agglomerated fibers automatically slide down to the discharge port 15 on the left side of the processing box 1 under vibration. The discharge port 15 is externally connected to a return channel 16 (an internally polished U-shaped stainless steel pipe). A blower 17 (preferably a high-pressure vortex air pump with a wind speed of 15m / s-25m / s) is fixedly connected to the bottom of the return channel 16. An interceptor plate with air holes (not shown in the figure) is installed in the return channel 16. The high-speed directional airflow generated by the blower 17 blows the agglomerated fibers upward along the return channel 16 through the air holes, and then re-sprays them into the toothed roller 3 area from the top of the processing box 1 for secondary tearing, thus preventing long strips or agglomerated fibers from entering the feeding stage.

[0032] The storage silo 23 has a cone-shaped three-dimensional structure at the bottom and is equipped with radar or ultrasonic level sensors (not shown in the figure) inside to monitor the material level in real time. When the material level is lower than the set value, the upstream unit is triggered to increase the material supply; when the material level is higher than the set value, the material supply is reduced to ensure stable material level in the silo and ensure continuous material feeding. In addition, a recycling bin with a sealed cover (not shown in the figure) is also installed on the outside of the storage silo 23 for easy feeding.

[0033] Environmentally friendly recycling performance: For extremely fine carbon fibers, a recycling hood 28 is fixedly installed through the front end of the processing box 1. An exhaust fan 30 (negative pressure value ≥1500Pa) creates a localized negative pressure in the recycling hood and flocking operation area through the exhaust pipe 31. The dust-laden airflow enters the filter box 32 inside the filter box 29. The filter box 32 contains a HEPA high-efficiency filter composite layer with a filtration accuracy of 5μm and an interception efficiency ≥99.9%. Furthermore, a removable sealed door (not shown in the figure) is provided on the outside of the filter box 29. The collected clean lint can be periodically removed through the sealed door and directly returned to the storage silo 23 for reuse via the recycling cylinder, achieving a dust-free workshop and zero loss of high-value raw materials.

[0034] The feeding assembly includes a feeding channel 18, the top of which is fixedly connected to the processing box 1, and the bottom of which is fixedly connected to the storage bin 23. An air pump 19 is fixedly connected to the front end of the feeding channel 18, and a diversion pipe 20 is fixedly connected to the output end of the air pump 19. Multiple blowers 21 are fixedly connected to the outside of the diversion pipe 20, and the blowers 21 are fixedly connected to the feeding channel 18. An ion bar 22 is fixedly connected to the rear end of the feeding channel 18, and the output end of the ion bar 22 communicates with the inside of the feeding channel 18.

[0035] Specifically, qualified single chopped carbon fibers pass through the sieve plate 10 and enter the feeding assembly (feeding channel 18). Since carbon fibers are highly susceptible to static electricity after friction, leading to secondary agglomeration, this embodiment incorporates a dual anti-agglomeration design in the feeding channel 18: Static neutralization: An ionizing bar 22 is fixedly connected to the rear end of the material feeding channel 18. Product parameters: The ionizing bar 22 is preferably a 7kV high-frequency AC static eliminator bar. The dense neutralizing ions emitted by it can cover the entire feeding section. The static elimination time is <0.5 seconds, and the residual voltage is controlled within ±30V. It removes the electrostatic attraction of carbon fiber agglomeration from the physical source.

[0036] Airflow dispersion: An air pump 19 and a diverter pipe 20 are fixed at the front end of the material discharge channel 18. Multiple blowers 21 are inclined downwards at 45° and penetrate into the material discharge channel 18. The micro-airflow (airflow adjustable to 2-4 m³ / h) sprayed by the blowers 21 forms a downward spiral airflow curtain in the channel, causing the carbon fibers that have lost static electricity to float in a free and suspended state under the airflow and fall into the storage bin 23.

[0037] The screening assembly includes a support frame 8, which is fixedly connected to the inner wall of the processing box 1. A spring 9 is fixedly connected to the top of the support frame 8, and a screen plate 10 is fixedly connected to the top of the spring 9. An eccentric wheel 12 is located below the screen plate 10.

[0038] Specifically, the vibrating screen structure includes a screening assembly located at the bottom of the processing box 1. The screen plate 10 is supported by springs 9 made of high-manganese steel on the support frame 8. Dimensions and surface features: The screen plate 10 is inclined (preferably at an angle of 10°-15°), made of anti-static nylon material, and coated with a Teflon (PTFE) anti-stick coating. The aperture is customized according to the specifications of chopped carbon fibers (slightly larger than the diameter of a single fiber, but smaller than the diameter of the smallest agglomerate), ensuring that qualified single fibers pass through the screen while retaining undissolved fiber clumps.

[0039] Gear 4 is located on the outside of the processing box 1, and the two gears 4 are meshed and connected to each other. Sprockets 6 are located on the outside of gear 4, and a chain 7 is sleeved between the two sprockets 6, and the chain 7 is meshed and connected to the sprockets 6.

[0040] Chain 7 can synchronously drive two sprockets 6 to rotate, which in turn drives the four rotating rods 2 above and below to rotate synchronously. Sprockets 13 are located on the outside of the processing box 1, and a chain 14 is sleeved between the two sprockets 13, and the chain 14 is engaged with the sprockets 13.

[0041] Chain 2 14 can synchronously drive two sprockets 2 13 to rotate, thereby simultaneously driving the two front and rear rotating rods 11 to rotate synchronously. Both the rear rotating rod 11 and the rear rotating rod 2 are fixedly connected to a sprocket 34. A chain 35 is sleeved between the two sprockets 34, and the chain 35 is meshed with the sprockets 34.

[0042] Chain 35 can synchronously drive two sprockets 34 to rotate, thereby simultaneously driving the rotating rod 2 and the rotating rod 11 to rotate. The lower outer side of the return channel 16 is connected to the discharge port 15, and the upper part of the return channel 16 is through and fixedly connected to the upper part of the processing box 1.

[0043] After the material is discharged from the discharge port 15, it enters the upper part of the processing box 1 through the return channel 16 for re-crushing; The top exhaust pipe 31 extends through and is fixedly connected to the recovery cover 28, and the bottom exhaust pipe 31 is fixedly connected to the output end of the exhaust fan 30.

[0044] The exhaust duct 31 serves to transport airflow; Both sides of the processing box 1 are fixedly connected to the fixing frame 33, and the inner side of the fixing frame 33 is also fixedly connected to the storage bin 23 and the feeding cylinder 24.

[0045] The mounting bracket 33 is also fixedly connected to the exhaust fan 30, and the mounting bracket 33 can provide fixed support for the entire device; The discharge assembly includes a feeding cylinder 24, the top of which is connected to the bottom of the storage bin 23. A screw conveyor 25 is connected to the inside of the feeding cylinder 24 and rotates through it. A second motor 26 is fixedly connected to the outside of the feeding cylinder 24, and the output end of the second motor 26 is fixedly connected to the screw conveyor 25. A discharge cylinder 27 is connected to the lower end of the feeding cylinder 24 and rotates through it.

[0046] Discharge parameter control: The bottom of the storage hopper 23 is connected to the feeding cylinder 24. It is made of anti-static stainless steel with a smooth inner wall. Motor 26 (preferably a stepper motor or a servo motor with an encoder) drives the spiral conveyor 25 to rotate. The spiral conveyor 25 has a precision-machined pitch of 15mm, is made of anti-static and wear-resistant material, and has a polished surface to prevent short-cut carbon fibers from sticking together and generating static electricity, ensuring smooth material feeding. The rotational speed of motor 26 is precisely controlled by a PLC controller to achieve extremely high-precision quantitative conveying with an error rate ≤±1%, ensuring that the amount of fiber discharged from the discharge cylinder 27 perfectly matches the spraying speed of the subsequent flocking equipment.

[0047] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for preventing agglomeration of short-cut carbon fiber flocking, characterized in that, include: Processing box (1), the processing box (1) is used to crush and screen fibers. The bottom of the processing box (1) is connected to a feeding component. The bottom of the feeding component is connected to a storage bin (23). The storage bin (23) is used to collect the processed fibers. The bottom of the storage bin (23) is connected to a discharge component. The processing box (1) has two rotating rods (2) that are rotatably connected through the upper and middle parts. The outer ring of the rotating rod (2) is fixedly connected to a toothed roller (3) and a gear (4). The outer ring of the rotating rod (2) is fixedly connected to a motor (5) and the output end of the motor (5) is fixedly connected to the rear rotating rod (2). The outer rings of the two rotating rods (2) at the rear end are fixedly connected to a sprocket (6). The processing box (1) has a screening assembly at the lower part. The processing box (1) has two rotating rods (11) that are rotatably connected through the right side. The rotating rod (11) has an eccentric wheel (12) fixedly connected to one end inward. The eccentric wheel (12) is set on the screen. Below the plate (10), the outer rings of the two rotating rods (11) are fixedly connected to the second sprocket (13). The left side of the processing box (1) is provided with a discharge port (15). The left side of the processing box (1) is fixedly connected to a return channel (16). The bottom of the return channel (16) is fixedly connected to a blower (17). The front end of the processing box (1) is provided with a recycling cover (28). The front end of the processing box (1) is fixedly connected to a filter box (29). The bottom of the filter box (29) is provided with an exhaust fan (30). The top and bottom of the filter box (29) are both provided with exhaust pipes (31). The filter box (29) is provided with a filter box (32).

2. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The feeding assembly includes a feeding channel (18), the top of which is fixedly connected to the processing box (1) and the bottom of which is fixedly connected to the storage bin (23). An air pump (19) is fixedly connected to the front end of the feeding channel (18), and a diversion pipe (20) is fixedly connected to the output end of the air pump (19). Multiple blowers (21) are fixedly connected to the outside of the diversion pipe (20), and the blowers (21) are fixedly connected to the feeding channel (18). An ion bar (22) is fixedly connected to the rear end of the feeding channel (18), and the output end of the ion bar (22) is connected to the inside of the feeding channel (18).

3. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The screening assembly includes a support frame (8), which is fixedly connected to the inner wall of the processing box (1). A spring (9) is fixedly connected to the top of the support frame (8), and a screen plate (10) is fixedly connected to the top of the spring (9). An eccentric wheel (12) is located below the screen plate (10).

4. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The gear (4) is located outside the processing box (1), and the two gears (4) are meshed and connected to each other. The first sprocket (6) is located outside the gear (4), and the first chain (7) is sleeved between the two first sprockets (6), and the first chain (7) is meshed and connected to the first sprocket (6).

5. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The second sprocket (13) is located outside the processing box (1), and a second chain (14) is sleeved between the two second sprockets (13), and the second chain (14) is meshed with the second sprocket (13).

6. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: Both the rear rotating rod (11) and the rear rotating rod (2) are fixedly connected to a sprocket three (34), and a chain three (35) is sleeved between the two sprocket three (34), and the chain three (35) is meshed with the sprocket three (34).

7. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The lower outer side of the return channel (16) is connected to the discharge port (15), and the upper part of the return channel (16) is through and fixedly connected to the upper part of the processing box (1).

8. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The top exhaust pipe (31) is connected to the recovery hood (28) at its end, and the bottom exhaust pipe (31) is connected to the output end of the exhaust fan (30) at its end.

9. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The processing box (1) is fixedly connected to a fixing frame (33) on both sides, and the inside of the fixing frame (33) is also fixedly connected to the storage bin (23) and the feeding cylinder (24).

10. The anti-agglomeration short-cut carbon fiber flocking feeding device according to claim 1, characterized in that: The discharge assembly includes a feeding cylinder (24), the top of which is connected to the bottom of the storage bin (23) and fixedly connected. A spiral conveying rod (25) is connected to the inside of the feeding cylinder (24) and rotated. A second motor (26) is fixedly connected to the outside of the feeding cylinder (24), and the output end of the second motor (26) is fixedly connected to the spiral conveying rod (25). A discharge cylinder (27) is connected to the bottom of the end of the feeding cylinder (24) and fixedly connected.

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