A feeding device for flame retardant processing

Abstract

The application discloses a feeding device for flame retardant processing, and relates to the technical field of flame retardant processing feeding, which comprises a base, and a cooling feeding mechanism is arranged on the top of the base. When the application is used, the air cooler delivers cold air into the three-way pipe, and two air flows enter the central cavity and the air cavity respectively. The cold air in the air cavity enters the hollow cavity through the second communication hole and the first communication hole, exchanges heat with the cold air absorbed by the copper-based foam metal framework, and reduces the temperature of the feeding blade and the raw material. Meanwhile, the cold air in the central cavity passes through the aluminum-based silicon carbide composite layer and takes away the heat of the rotating shaft, thereby assisting in reducing the temperature of the raw material. Through the cooling feeding mechanism and the copper-based foam metal framework, the heat exchange of the cold air is strengthened, the overall strength is enhanced, the temperature is reduced, and the strength is doubled. In combination with the aluminum-based silicon carbide composite layer, the high torsional strength of the aluminum-based silicon carbide composite layer bears the torque transmission, and assists in reducing the temperature.

Description

Technical Field

[0001] This invention relates to the field of flame retardant processing and feeding technology, specifically to a feeding device for flame retardant processing. Background Technology

[0002] Flame retardants are functional chemical substances that can inhibit or delay the combustion of flammable materials, improving their fire safety by altering their combustion characteristics. They are widely used in polymer materials, building materials, and electronic appliance casings, and are important material additives in fire safety systems. Flame retardant processing feeding devices are specialized equipment used in flame retardant processing to automate the conveying and feeding of raw materials, replacing traditional manual feeding, reducing labor costs, and improving feeding efficiency. They are one of the core pieces of equipment for the large-scale, refined production of flame retardants.

[0003] In existing technologies, screw feeders are often used to transport granular raw materials during flame retardant processing. The rotation of the screw blades in the screw feeder propels the granular material axially, eventually discharging it through the outlet. During feeding, the screw blades frequently rub against the granular material, generating heat. For some special raw materials, while this frictional heat may not directly reach the decomposition temperature, the excessively high local temperatures can cause some of the material to soften and stick together, affecting the subsequent flame retardant processing effect.

[0004] Therefore, we propose a feeding device for flame retardant processing to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device for flame retardant processing, in order to solve the problem mentioned in the background art that during the feeding process of the spiral feeder, the spiral blades frequently rub against the granular raw materials, generating heat. When the local temperature is too high, some raw materials are easily softened and stuck together, affecting the subsequent flame retardant processing effect.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for flame retardant processing, comprising a base, a cooling feeding mechanism being provided at the top of the base, and a fine-tuning mechanism being provided at the bottom of the cooling feeding mechanism;

[0007] The cooling and feeding mechanism includes a feeding component and a cooling component. The feeding component includes a feeding box. An installation hole is provided on the top edge of the feeding box. A temperature sensor is fixedly installed inside the installation hole.

[0008] The cooling assembly includes a rotating shaft and a cooling fan. Feeding blades are fixedly installed on the outer surface of the rotating shaft. Hollow cavities are formed inside the feeding blades. Multiple copper-based foam metal skeletons are fixedly installed inside the hollow cavities. A central cavity is formed inside the rotating shaft. An aluminum-based silicon carbide composite layer is set inside the central cavity. Two first connecting holes are formed on the inner wall of the feeding blades. Air cavities are formed inside both ends of the rotating shaft. Second connecting holes are formed on the inner walls of both air cavities. T-shaped pipes are set at both ends of the rotating shaft.

[0009] Preferably, one end of each of the two tee pipes is provided with a sealing rotary joint, one end of one of the sealing rotary joints is fixedly connected to an exhaust pipe, one end of the other sealing rotary joint is fixedly connected to a fixing pipe, one end of the fixing pipe is fixedly connected to a flexible hose, the output end of the air cooler is connected to one end of the flexible hose through a flange, and the input end of the air cooler is connected to an air inlet pipe through a flange.

[0010] Preferably, the multiple copper-based foam metal skeletons are spirally distributed, and multiple triangular ribs are fixedly installed inside the aluminum-based silicon carbide composite layer. The two first connecting holes are respectively connected to the two second connecting holes. The other ends of the two three-way pipes are respectively fixedly inserted into the interior of the two central cavities, and the other ends of the two three-way pipes are respectively fixedly inserted into the interior of the two air cavities. The bottom of the air cooler is installed on the rear surface of the top of the base.

[0011] Preferably, the cooling feeding mechanism further includes a drive assembly, which includes a drive motor. A drive gear is fixedly installed at the output end of the drive motor. A driven gear is meshed with the outer surface of the drive gear. A convex hole is opened inside the driven gear. A convex disc is movably embedded inside the convex hole. The convex disc is fixedly installed on the outer surface of one end of the rotating shaft. I-shaped discs are fixedly installed on both outer surfaces of the driven gear.

[0012] Preferably, a support frame is movably fitted onto the outer surfaces of the two I-shaped discs, the outer surface of the driven gear is movably embedded inside the support frame, a mounting bracket is provided at the bottom of the drive motor, a PLC controller is fixedly mounted on the front surface of the mounting bracket, a support plate is fixedly mounted at the top of the rear surface of the mounting bracket, the bottom of the fixing tube is fixedly mounted on the top of the support plate, and the bottom of the mounting bracket is fixedly mounted on the top of the base near the air cooler.

[0013] Preferably, rotating holes are provided on both outer surfaces of the feeding box, elastic rings are fixedly connected to the inner walls of the two rotating holes, and support bearings are fixedly connected to the inner walls of the two elastic rings. The outer surfaces of both ends of the rotating shaft are respectively fixedly installed inside the two support bearings. A hopper is fixedly installed on the top of the feeding box, and a discharge pipe is fixedly connected to the bottom of the feeding box. The outer surface of the feeding blade is movably embedded inside the feeding box.

[0014] Preferably, the fine-tuning mechanism includes two hydraulic rods, with a fine-tuning frame fixedly installed at the output ends of the two hydraulic rods. U-shaped frames are fixedly installed at both sides of the inner edge of the fine-tuning frame. Fine-tuning bearings are fixedly installed on the outer surfaces of both ends of the rotating shaft. Fixing rings are fixedly installed on the outer surfaces of the two fine-tuning bearings. Two fine-tuning rods are fixedly installed on the outer surfaces of the two fixing rings. The outer surfaces of the four fine-tuning rods are respectively fixedly installed inside the two U-shaped frames.

[0015] Preferably, a fixing plate is fixedly installed on one side of the outer surface of the feeding box, and two elastic clips are fixedly installed at the bottom of one side of the outer surface of the fixing plate. A limiting rod is movably embedded inside each of the two elastic clips, and a fine-tuning ring is fixedly installed on the outer surface of each of the two limiting rods. The outer surfaces of the two fine-tuning rods are respectively movably embedded at the center of the two fine-tuning rings.

[0016] Preferably, a reinforcing plate is fixedly installed on the front surface of the fixed plate, and high-precision pressure sensors are fixedly installed inside both the fixed plate and the reinforcing plate. The detection ends of the two high-precision pressure sensors are respectively in contact with the top and bottom of the two fine-tuning rings, and the bottoms of the two hydraulic rods are fixedly installed on the top of the base.

[0017] Preferably, the bottom end of the discharge pipe extends movably through to the bottom of the fine-tuning frame, and two frames are fixedly installed on the outer surface of the feeding assembly. The bottoms of the two frames are respectively fixedly installed on the front and rear surfaces of the base top, and one side of the outer surface of the support frame is fixedly installed at the top of one side of the outer surface of the fixed plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In use, the cold air blower delivers cold air into the three-way pipe, forming two airflows that enter the central cavity and the air cavity respectively. The cold air in the air cavity enters the hollow cavity through the second and first connecting holes, exchanging heat with the cold air absorbed by the copper-based foam metal skeleton, thus reducing the temperature of the feeding blades and raw materials. Simultaneously, the cold air in the central cavity passes through the aluminum-based silicon carbide composite layer, carrying away heat from the rotating shaft and further reducing the raw material temperature. Through the cooling feeding mechanism, combined with the copper-based foam metal skeleton, the three-dimensional pores enhance the heat exchange of the cold air, and the metal skeleton fills the weak areas inside the hollow cavity of the feeding blades, enhancing overall strength and achieving a dual improvement in cooling and strength. Combined with the aluminum-based silicon carbide composite layer, its high torsional strength enables torque transmission, while its high thermal conductivity quickly dissipates heat from the rotating shaft, further aiding in cooling.

[0020] 2. In use, the hydraulic rod is activated, pushing the fine-tuning frame, U-shaped frame, fine-tuning rod, and fixing ring upwards slightly, which in turn pushes the rotating shaft upwards slightly, thus slightly increasing the distance between the feeding blades and the bottom surface of the feeding box. When the fine-tuning rod contacts the top surface of the fine-tuning ring, the high-precision pressure sensor detects a pressure change, and the PLC controller controls the hydraulic rod to close, stopping its movement. The downward movement of the hydraulic rod's output end pulls the rotating shaft downwards slightly, thus slightly decreasing the distance between the feeding blades and the bottom surface of the feeding box. Under the action of the fine-tuning mechanism, the feeding blades are finely adjusted, changing the gap between the feeding blades and the bottom surface of the feeding box to adapt to the conveying of raw materials of different particle sizes. Optimizing the gap for specific materials reduces unnecessary friction and additional torque caused by jamming, thus improving the equipment's service life.

[0021] 3. When using this invention, the fine-tuning ring is set with three different sizes. The change of the internal size corresponds to the change of the fine-tuning distance of the feeding blade. According to the particle size of the conveyed raw material, select the fine-tuning ring of the corresponding size that needs to be fine-tuned. Then, pull out the original limiting rod from the elastic clamp and install the corresponding fine-tuning ring on the outside of the fine-tuning rod to facilitate fine-tuning at different distances. Attached Figure Description

[0022] Figure 1 This is a first perspective view of a feeding device for processing flame retardants according to the present invention;

[0023] Figure 2 This is a second perspective view of a feeding device for processing flame retardants according to the present invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the feeding component in a feeding device for processing flame retardants according to the present invention;

[0025] Figure 4 This is a cross-sectional view of the feeding box in a feeding device for processing flame retardants according to the present invention;

[0026] Figure 5 This is a cross-sectional schematic diagram of the rotating shaft in a feeding device for flame retardant processing according to the present invention;

[0027] Figure 6 This is a cross-sectional view of the feeding blades in a feeding device for processing flame retardants according to the present invention.

[0028] Figure 7 This is a cross-sectional schematic diagram of the air cavity in a feeding device for flame retardant processing according to the present invention;

[0029] Figure 8 This is a schematic diagram showing the structure of the fine-tuning mechanism in a feeding device for flame retardant processing according to the present invention.

[0030] Figure 9 This is a schematic diagram of the drive component in a feeding device for flame retardant processing according to the present invention;

[0031] Figure 10 This is a schematic diagram of the driven gear in a feeding device for flame retardant processing according to the present invention;

[0032] Figure 11 This is a schematic diagram showing the structure of the fine-tuning ring in a feeding device for flame retardant processing according to the present invention;

[0033] Figure 12 This is a cross-sectional schematic diagram of the support frame in a feeding device for flame retardant processing according to the present invention;

[0034] Figure 13 This is a schematic diagram showing different dimensions of the fine-tuning ring in a feeding device for flame retardant processing according to the present invention.

[0035] In the picture:

[0036] 1. Base; 2. Frame; 3. Cooling and feeding mechanism; 31. Feeding assembly; 3101. Feeding box; 3102. Discharge pipe; 3103. Hopper; 3104. Mounting hole; 3105. Rotary hole; 3106. Elastic ring; 3107. Support bearing; 32. Cooling assembly; 3201. Rotating shaft; 3202. Feeding blade; 3203. Hollow cavity; 3204. Copper-based foam metal skeleton; 3205. First connecting hole; 3206. Central cavity; 3207. Aluminum-based silicon carbide composite layer; 3208. Triangular rib; 3209. Air cavity; 3210. Second connecting hole; 3211. T-pipe; 3212. Sealing rotary joint; 3213. Exhaust pipe; 3214. Fixing pipe; 3 215. Hose; 3216. Air cooler; 3217. Air inlet pipe; 33. Drive assembly; 3301. Drive motor; 3302. Drive gear; 3303. Driven gear; 3304. I-beam; 3305. Support frame; 3306. Protruding hole; 3307. Protruding disc; 3308. Mounting bracket; 3309. Support plate; 4. Fine-tuning mechanism; 401. Hydraulic rod; 402. Fine-tuning frame; 403. U-shaped frame; 404. Fine-tuning bearing; 405. Fixing ring; 406. Fine-tuning rod; 407. Fixing plate; 408. Elastic clamp; 409. Limiting rod; 410. Fine-tuning ring; 411. Reinforcing plate; 412. High-precision pressure sensor; 5. Temperature sensor; 6. PLC controller. Detailed Implementation

[0037] 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.

[0038] Example 1: Please refer to Figures 1-13As shown, the present invention provides a technical solution: a feeding device for flame retardant processing, including a base 1, a cooling feeding mechanism 3 is provided on the top of the base 1, and a fine-tuning mechanism 4 is provided at the bottom of the cooling feeding mechanism 3; the cooling feeding mechanism 3 includes a feeding component 31 and a cooling component 32, the feeding component 31 includes a feeding box 3101, the top edge of the feeding box 3101 is provided with a mounting hole 3104, and a temperature sensor 5 is fixedly installed inside the mounting hole 3104; the cooling component 32 includes a rotating shaft 3201 and a cooling fan 3216, a feeding blade 3202 is fixedly installed on the outer surface of the rotating shaft 3201, a hollow cavity 3203 is provided inside the feeding blade 3202, and multiple copper-based foam metals are fixedly installed inside the hollow cavity 3203. The frame 3204 and the rotating shaft 3201 have a central cavity 3206 inside, and an aluminum-based silicon carbide composite layer 3207 is installed inside the central cavity 3206. The inner wall of the feeding blade 3202 has two first connecting holes 3205. Air chambers 3209 are opened inside both ends of the rotating shaft 3201, and the inner walls of both air chambers 3209 have second connecting holes 3210. A three-way pipe 3211 is installed at both ends of the rotating shaft 3201, and a sealing rotary joint 3212 is installed at one end of each three-way pipe 3211. One end of one sealing rotary joint 3212 is fixedly connected to an exhaust pipe 3213, and one end of the other sealing rotary joint 3212 is fixedly connected to a fixing pipe 3214. One end of the fixing pipe 3214 is fixedly connected to... The output end of the flexible hose 3215 and the air cooler 3216 is connected to one end of the flexible hose 3215 via a flange. The input end of the air cooler 3216 is connected to the air inlet pipe 3217 via a flange. Multiple copper-based foam metal skeletons 3204 are spirally distributed. Multiple triangular ribs 3208 are fixedly installed inside the aluminum-based silicon carbide composite layer 3207. Two first connecting holes 3205 are respectively connected to two second connecting holes 3210. The other ends of two three-way pipes 3211 are respectively fixedly inserted into the interior of two central cavities 3206. The other ends of the two three-way pipes 3211 are respectively fixedly inserted into the interior of two air chambers 3209. The bottom of the air cooler 3216 is installed on the rear surface of the top of the base 1. The cooling and feeding mechanism 3 also includes a drive unit. Component 33, the drive assembly 33 includes a drive motor 3301, a drive gear 3302 fixedly mounted on the output end of the drive motor 3301, a driven gear 3303 meshing with the outer surface of the drive gear 3302, a protruding hole 3306 opened inside the driven gear 3303, a convex disc 3307 movably embedded inside the protruding hole 3306, the convex disc 3307 being fixedly mounted on the outer surface of one end of the rotating shaft 3201, I-shaped discs 3304 fixedly mounted on both outer surfaces of the driven gear 3303, a support frame 3305 movably sleeved on the outer surfaces of the two I-shaped discs 3304, the outer surface of the driven gear 3303 movably embedded inside the support frame 3305, and a mounting bracket 3308 provided at the bottom of the drive motor 3301.A PLC controller 6 is fixedly mounted on the front surface of the mounting bracket 3308. A support plate 3309 is fixedly mounted on the top of the rear surface of the mounting bracket 3308. The bottom of the fixing tube 3214 is fixedly mounted on the top of the support plate 3309. The bottom of the mounting bracket 3308 is fixedly mounted on the top of the base 1 near the air cooler 3216. Rotary holes 3105 are opened on both outer surfaces of the feeding box 3101. Elastic rings 3106 are fixedly connected to the inner walls of the two rotating holes 3105. Support bearings 3107 are fixedly connected to the inner walls of the two elastic rings 3106. The outer surfaces of both ends of the rotating shaft 3201 are respectively fixed... The feeding assembly 31 is fixedly installed inside two support bearings 3107. A hopper 3103 is fixedly installed on the top of the feeding box 3101, and a discharge pipe 3102 is fixedly connected to the bottom of the feeding box 3101. The outer surface of the feeding blade 3202 is movably embedded inside the feeding box 3101. The bottom end of the discharge pipe 3102 movably extends to the bottom of the fine-tuning frame 402. Two frames 2 are fixedly installed on the outer surface of the feeding assembly 31. The bottoms of the two frames 2 are respectively fixedly installed on the front and rear surfaces of the top of the base 1. One side of the outer surface of the support frame 3305 is fixedly installed on the top of one side of the outer surface of the fixed plate 407.

[0039] In this embodiment, during use, the drive motor 3301 is started. The output end of the drive motor 3301 drives the driving gear 3302 to rotate, which in turn drives the driven gear 3303 to rotate. The cam 3307 is embedded inside the cam hole 3306. Under the rotation of the driven gear 3303, the cam 3307 rotates, which in turn drives the rotating shaft 3201 to rotate. This causes the feeding blade 3202 to rotate inside the feeding box 3101, pushing the raw material falling in the hopper 3103 towards the discharge hole. Finally, the material is discharged through the discharge pipe 3102, thus achieving the feeding purpose. The three-way pipes 3211 at both ends of the rotating shaft 3201 are connected to the exhaust pipe 3213 and the fixed pipe 3214 respectively through the sealed rotary joint 3212. With the movable connection of the sealed rotary joint 3212, the three-way pipes 3211 do not affect the rotation of the rotating shaft 3201. One end of the air inlet pipe 3217 is connected to the air cooling device. The hollow cavity 3203 inside the feeding blade 3202 is connected to the inside of the two air chambers 3209 through two first connecting holes 3205 and two second connecting holes 3210 respectively. During the feeding process, the driving assembly 33 drives the feeding blade 3202 to rotate. The temperature sensor 5 detects the temperature inside the feeding box 3101 and transmits the detected temperature data to the PLC controller 6 for identification and comparison via an electrical signal. When the temperature data matches the set threshold, the PLC controller 6 controls the air cooler 3216 to start. The air cooler is drawn into the hose 3215 through the air inlet pipe 3217, and then enters the corresponding three-way pipe 3211 through the fixed pipe 3214 and the corresponding sealed rotary joint 3212. At this time, the air cooler forms two airflows, which enter the central cavity 3206 and the air chamber 3209 respectively. The cold air in the air cavity 3209 enters the hollow cavity 3203 through the second connecting hole 3210 and the first connecting hole 3205, and flows along the spiral hollow cavity 3203. Simultaneously, it passes through multiple spirally distributed copper-based foam metal skeletons 3204. The copper-based foam metal skeletons 3204 form three-dimensional interconnected pores, allowing the cold air to pass smoothly. At the same time, the metal skeletons are in close contact with the inner wall of the blades, forming a metal heat-conducting network. The feeding blades 3202 absorb the frictional heat generated with the raw material during feeding and quickly conduct it to the cold air within the pores through the metal skeletons of the copper-based foam metal skeletons 3204, achieving heat exchange and reducing the temperature of the feeding blades 3202, thereby reducing the temperature of the raw material. The porous structure of the copper-based foam metal skeletons 3204 disperses the cold air into multiple micro-airflows, increasing the contact area between the cold air and the skeletons. Simultaneously, the airflow generates swirling flow within the pores, breaking the laminar boundary layer and improving convective heat transfer efficiency, which is beneficial for improving the cooling effect. In addition, multiple copper-based foam metal skeletons 3204 distributed in the hollow cavity 3203 form multiple support skeletons, which is beneficial to improving the strength of the feeding blade 3202.Next, the gas in the hollow cavity 3203 enters another air cavity 3209 through another first connecting hole 3205 and a second connecting hole 3210, and is finally discharged through a three-way pipe 3211 and an exhaust pipe 3213. At the same time, the cold air in the central cavity 3206 passes through the aluminum-based silicon carbide composite layer 3207. The aluminum-based silicon carbide composite layer 3207 has high torsional strength. In addition, the aluminum-based silicon carbide composite layer 3207 can quickly conduct the frictional heat of the rotating shaft 3201 and the frictional heat between the raw material to its interior. When the cold air passes through, it carries away the heat and reduces the temperature of the rotating shaft 3201, thereby helping to reduce the temperature of the raw material and preventing some raw materials from softening and sticking. This solves the problem that during the feeding process of the screw feeder, the frequent friction between the screw blades and the granular raw materials generates heat, and when the local temperature is too high, it is easy for some raw materials to soften and stick, which affects the subsequent flame retardant processing effect. By using the cooling feeding mechanism 3, combined with the copper-based foam metal skeleton 3204, the cooling air heat exchange can be enhanced through the three-dimensional pores, and the metal skeleton can fill the weak area of ​​the hollow cavity 3203 inside the feeding blade 3202, thereby enhancing the overall strength, reducing deformation, and achieving a dual improvement in cooling and strength. Combined with the aluminum-based silicon carbide composite layer 3207, the high torsional strength can bear the torque transmission, while the high thermal conductivity can quickly dissipate the heat of the rotating shaft 3201 to assist in cooling. The feeding blade 3202 adopts a design that prioritizes ventilation and secondary strength, while the rotating shaft 3201 adopts a design that prioritizes strength and secondary thermal conductivity. By selecting materials differently, the problems of "wasting costs by using high-strength materials" or "failure caused by using low-strength materials" are avoided.

[0040] Example 2: Figures 2-5 and Figures 8-11As shown, a cooling feeding mechanism 3 is installed at the top of the base 1, and a fine-tuning mechanism 4 is installed at the bottom of the cooling feeding mechanism 3. The fine-tuning mechanism 4 includes two hydraulic rods 401, and a fine-tuning frame 402 is fixedly installed at the output end of the two hydraulic rods 401. U-shaped frames 403 are fixedly installed on both sides of the inner side of the fine-tuning frame 402. Fine-tuning bearings 404 are fixedly installed on the outer surfaces of both ends of the rotating shaft 3201. Fixing rings 405 are fixedly installed on the outer surfaces of the two fine-tuning bearings 404. Two fine-tuning rods 406 are fixedly installed on the outer surfaces of the two fixing rings 405. The outer surfaces of the four fine-tuning rods 406 are respectively fixedly installed inside the two U-shaped frames 403. A fixing plate 4 is fixedly installed on one side of the outer surface of the feeding box 3101. 07. Two elastic clips 408 are fixedly installed at the bottom of one side of the outer surface of the fixed plate 407. Limiting rods 409 are movably embedded inside the two elastic clips 408. Fine-adjusting rings 410 are fixedly installed on the outer surface of the two limiting rods 409. The outer surfaces of the two fine-adjusting rods 406 are movably embedded in the center of the two fine-adjusting rings 410. A reinforcing plate 411 is fixedly installed on the front surface of the fixed plate 407. High-precision pressure sensors 412 are fixedly installed inside the fixed plate 407 and the reinforcing plate 411. The detection ends of the two high-precision pressure sensors 412 are in contact with the top and bottom of the two fine-adjusting rings 410, respectively. The bottoms of the two hydraulic rods 401 are fixedly installed on the top of the base 1.

[0041] In this embodiment, during use, the two hydraulic rods 401 are activated, and their output ends move synchronously, pushing the fine-tuning frame 402 and the two U-shaped frames 403 to move slightly upward. Simultaneously, the fine-tuning rod 406 pushes the two fixing rings 405 to move slightly upward, which in turn pushes the two fine-tuning bearings 404 and the rotating shaft 3201 to move slightly upward. This, in turn, pushes the feeding blade 3202 to move slightly upward inside the feeding box 3101, causing the distance between the feeding blade 3202 and the top surface inside the feeding box 3101 to slightly shorten, and the distance between the feeding blade 3202 and the bottom surface inside the feeding box 3101 to slightly increase. When the rotating shaft 3201 moves, it causes the support bearing 3107 to move slightly upward inside the elastic ring 3106, causing the elastic ring 3106 to deform elastically. Additionally, it causes the convex disc 3307 to move slightly upward inside the convex hole 3306. When the fixed ring 405 drives the fine-tuning rod 406 to move upward inside the fine-tuning ring 410, and the fine-tuning rod 406 contacts the top surface inside the fine-tuning ring 410, the high-precision pressure sensor 412 located above detects the pressure change in the fine-tuning ring 410 and transmits the detected pressure signal to the PLC controller 6. The PLC controller 6 then controls the hydraulic rod 401 to close, stopping its movement. The downward movement of the output end of the hydraulic rod 401 causes the rotating shaft 3201 to move slightly downward. Combined with the control of the high-precision pressure sensor 412 below to close the hydraulic rod 401, the distance between the bottom of the feeding blade 3202 and the bottom surface inside the feeding box 3101 is slightly reduced. Under the action of the fine-tuning mechanism 4, the feeding blade 3202 is fine-tuned, adjusting the gap between the feeding blade 3202 and the bottom surface inside the feeding box 3101 to adapt to the conveying of raw materials of different particle sizes. Optimizing the gap for specific materials reduces unnecessary friction and additional torque caused by jamming, thus improving the service life of the equipment. The fine-tuning ring 410 is available in three different sizes, such as Figure 13 As shown, the change in internal dimensions corresponds to the change in the fine-tuning distance of the feeding blade 3202. Based on the particle size of the conveyed raw material, a fine-tuning ring 410 of the corresponding size requiring the fine-tuning distance is selected. Then, the original limiting rod 409 is pulled out of the elastic clamp 408, and the corresponding fine-tuning ring 410 is installed on the outside of the fine-tuning rod 406, facilitating fine-tuning at different distances. The movement space between the convex disc 3307 and the convex hole 3306, the maximum deformation and compression degree of the elastic ring 3106, and the movement space between the fine-tuning rod 406 and the fine-tuning ring 410 with the largest internal size are matched.

[0042] The overall mechanism works as follows: The drive motor 3301 is activated, driving the drive gear 3302, driven gear 3303, and cam 3307 to rotate. This further drives the rotating shaft 3201 and feeding blades 3202 to rotate, propelling the raw material forward and discharging it through the discharge pipe 3102. Temperature is detected by the temperature sensor 5. When an abnormal temperature is detected, the PLC controller 6 activates the cooling fan 3216, drawing cold air through the intake pipe 3217 into the hose 3215, fixed pipe 3214, and three-way pipe 3211. This creates two airflows that enter the central cavity 3206 and the air chamber 3209 respectively. The cold air in the air chamber 3209 enters the hollow cavity 3203 through the second connecting hole 3210 and the first connecting hole 3205, flowing along the spiral-shaped hollow cavity 3203. Simultaneously, it passes through the spirally distributed copper-based foam metal skeleton 3204, achieving heat exchange and reducing the temperature of the feeding blades 3202, thereby lowering the temperature of the raw material. Simultaneously, the cool air in the central cavity 3206 passes through the aluminum-based silicon carbide composite layer 3207, carrying away heat and reducing the temperature of the rotating shaft 3201, thereby assisting in lowering the raw material temperature. Activating the two hydraulic rods 401 pushes the fine-tuning frame 402 and the two U-shaped frames 403 upwards slightly. This, in turn, pushes the two fine-tuning bearings 404 and the rotating shaft 3201 upwards slightly via the fine-tuning rod 406 and the fixing ring 405, causing a slight increase in the distance between the feeding blade 3202 and the bottom surface inside the feeding box 3101. When the fine-tuning rod 406 contacts the top surface inside the fine-tuning ring 410, the high-precision pressure sensor 412 located above detects the pressure change in the fine-tuning ring 410, and the PLC controller 6 then controls the hydraulic rods 401 to close, stopping their movement. The downward movement of the output end of the hydraulic rod 401 causes the rotating shaft 3201 to move slightly downward. Combined with the high-precision pressure sensor 412 below, the hydraulic rod 401 is closed, which slightly reduces the distance between the bottom of the feeding blade 3202 and the bottom surface inside the feeding box 3101.

[0043] Among them, the air cooler 3216, drive motor 3301, hydraulic rod 401, high-precision pressure sensor 412, temperature sensor 5 and PLC controller 6 are all existing technologies, and their components and operating principles are all publicly available technologies, so they will not be explained in detail here.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding device for flame retardant processing comprising a base (1), characterized in that: The top of the base (1) is provided with a cooling feeding mechanism (3), and the bottom of the cooling feeding mechanism (3) is provided with a fine adjustment mechanism (4); The cooling feeding mechanism (3) comprises a feeding assembly (31) and a cooling assembly (32), the feeding assembly (31) comprises a feeding box (3101), the edge of the top of the feeding box (3101) is provided with a mounting hole (3104), and the inside of the mounting hole (3104) is fixedly installed with a temperature sensor (5); The cooling assembly (32) comprises a rotating shaft (3201) and a cold air machine (3216), the outer surface of the rotating shaft (3201) is fixedly installed with a feeding blade (3202), the inside of the feeding blade (3202) is provided with a hollow cavity (3203), a plurality of copper-based foam metal skeletons (3204) are fixedly installed in the inside of the hollow cavity (3203), the inside of the rotating shaft (3201) is provided with a center cavity (3206), the inside of the center cavity (3206) is provided with an aluminum-based silicon carbide composite layer (3207), the inner wall of the feeding blade (3202) is provided with two first communication holes (3205), the inside of the two ends of the rotating shaft (3201) is provided with an air cavity (3209), the inner wall of the two air cavities (3209) is provided with a second communication hole (3210), and the two ends of the rotating shaft (3201) are provided with three-way pipes (3211); One end of each of the two three-way pipes (3211) is provided with a sealed rotary joint (3212), one end of one of the sealed rotary joints (3212) is fixedly connected with an exhaust pipe (3213), one end of the other sealed rotary joint (3212) is fixedly connected with a fixed pipe (3214), one end of the fixed pipe (3214) is fixedly connected with a hose (3215), the output end of the cold air machine (3216) is connected with one end of the hose (3215) through a flange plate, and the input end of the cold air machine (3216) is connected with an air inlet pipe (3217) through a flange plate; The copper-based foam metal skeletons (3204) are spirally distributed, a plurality of triangular ribs (3208) are fixedly installed in the inside of the aluminum-based silicon carbide composite layer (3207), the two first communication holes (3205) are respectively communicated with the two second communication holes (3210), the other ends of the two three-way pipes (3211) are respectively fixedly penetrated into the insides of the two center cavities (3206), and the other ends of the two three-way pipes (3211) are respectively fixedly penetrated into the insides of the two air cavities (3209), and the bottom of the cold air machine (3216) is installed at the back surface of the top of the base (1). The fine adjustment mechanism (4) comprises two hydraulic rods (401), the output ends of the two hydraulic rods (401) are fixedly installed with fine adjustment frames (402), the inside of each fine adjustment frame (402) is fixedly installed with a U-shaped frame (403) at the two side edges, the outer surfaces of the two ends of the rotating shaft (3201) are fixedly installed with fine adjustment bearings (404), the outer surfaces of the two fine adjustment bearings (404) are fixedly installed with fixed rings (405), the outer surfaces of each fixed ring (405) are fixedly installed with two fine adjustment rods (406), and the outer surfaces of the two fine adjustment rods (406) are fixedly installed in the interiors of the U-shaped frames (403) respectively. One side of the feeding box (3101) is fixedly installed with a fixed plate (407), the bottom of the outer surface of one side of the fixed plate (407) is fixedly installed with two elastic clamps (408), the interiors of the elastic clamps (408) are movably embedded with limiting rods (409), the outer surfaces of the limiting rods (409) are fixedly installed with fine adjustment rings (410), and the outer surfaces of the fine adjustment rods (406) are movably embedded in the centers of the interiors of the corresponding fine adjustment rings (410).

2. The flame retardant processing feeder device according to claim 1, characterized in that: The cooling feeding mechanism (3) further comprises a driving assembly (33), the driving assembly (33) comprises a driving motor (3301), the output end of the driving motor (3301) is fixedly installed with a driving gear (3302), the outer surface of the driving gear (3302) is hingedly connected with a driven gear (3303), the interior of the driven gear (3303) is provided with a convex hole (3306), the interior of the convex hole (3306) is movably embedded with a convex disc (3307), the interior of the convex disc (3307) is fixedly installed on the outer surface of one end of the rotating shaft (3201), and the outer surfaces of the two sides of the driven gear (3303) are fixedly installed with work type discs (3304).

3. The flame retardant processing feeder device according to claim 2, characterized in that: The outer surfaces of the two work type discs (3304) are movably sleeved with support frames (3305), the outer surface of the driven gear (3303) is movably embedded in the interior of the support frame (3305), the bottom of the driving motor (3301) is provided with a mounting frame (3308), the front surface of the mounting frame (3308) is fixedly installed with a PLC controller (6), the top of the rear surface of the mounting frame (3308) is fixedly installed with a support plate (3309), the bottom of the fixed pipe (3214) is fixedly installed on the top of the support plate (3309), and the bottom of the mounting frame (3308) is fixedly installed on the top of the base (1) close to the air cooler (3216).

4. The flame retardant processing feeder device according to claim 3, characterized in that: The outer surfaces of both sides of the feeding box (3101) are provided with rotating holes (3105). The inner walls of the two rotating holes (3105) are fixedly connected with elastic rings (3106). The inner walls of the two elastic rings (3106) are fixedly connected with support bearings (3107). The outer surfaces of both ends of the rotating shaft (3201) are respectively fixedly installed inside the two support bearings (3107). The top of the feeding box (3101) is fixedly installed with a hopper (3103). The bottom of the feeding box (3101) is fixedly connected with a discharge pipe (3102). The outer surface of the feeding blade (3202) is movably embedded inside the feeding box (3101).

5. The flame retardant processing material feeding device according to claim 4, characterized in that: A reinforcing plate (411) is fixedly installed on the front surface of the fixing plate (407). A high-precision pressure sensor (412) is fixedly installed inside both the fixing plate (407) and the reinforcing plate (411). The detection end of the high-precision pressure sensor (412) is in contact with the top and bottom of the fine-tuning ring (410) respectively. The bottoms of the two hydraulic rods (401) are fixedly installed on the top of the base (1).

6. The flame retardant processing material feeding device according to claim 5, characterized in that: The bottom end of the discharge pipe (3102) extends movably through to the bottom of the fine-tuning frame (402). Two frames (2) are fixedly installed on the outer surface of the feeding assembly (31). The bottoms of the two frames (2) are fixedly installed on the front and rear surfaces of the top of the base (1), respectively. One side of the outer surface of the support frame (3305) is fixedly installed on the top of one side of the outer surface of the fixing plate (407).

Images