Pneumatic conveying device for mixed materials

Abstract

The invention belongs to the technical field of pneumatic conveying, and particularly relates to a mixed material pneumatic conveying device which comprises a storage assembly, a feeding assembly is rotationally connected to the interior of the storage assembly, a discharging assembly is arranged on one side of the storage assembly, and a conveying assembly is arranged at the output end of the discharging assembly. The storage assembly comprises a tank body, and an inner cavity is formed in the tank body; the feeding assembly comprises a rotating shaft. The discharging assembly comprises a plurality of discharging pipes, the outer surfaces of the discharging pipes are evenly and movably connected with a plurality of moving blocks, clamping grooves are formed in the side walls of the moving blocks, pressure sensors are arranged on the inner walls of the clamping grooves, and wedge-shaped movable plates are arranged on the sides, away from the tank body, of the moving blocks. The pneumatic conveying device is easy to operate, safe, stable, capable of effectively achieving continuous and efficient pneumatic conveying of raw materials, high in adaptability, capable of meeting the conveying requirements of different raw materials, good in regulation and control performance, high in stability, high in conveying efficiency and good in conveying effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of pneumatic conveying, and specifically relates to a pneumatic conveying device for mixed materials. Background Art

[0002] A pneumatic conveying device is a device that uses the pressure or kinetic energy of gas to convey powdery, granular and other bulk materials in a pipeline. It has the advantages of simple structure, convenient operation, high conveying efficiency, and can achieve automatic control, and is widely used in industries such as chemical industry, medicine, food, building materials, and metallurgy.

[0003] Chinese invention patent CN109867141B relates to a pneumatic conveying device, which includes a conveying pipeline and a receiving mechanism. The conveying pipeline is used to guide the movement of a transmission bottle, and the receiving mechanism is provided with a receiving plate for receiving the transmission bottle, and a pressure relief device is arranged at a predetermined position of the conveying pipeline; the conveying efficiency of this pneumatic conveying device is low and the conveying effect is poor.

[0004] Chinese invention patent CN116534590B belongs to the technical field of conveying, and specifically relates to a pneumatic conveying device and a conveying method, including a bin body and a stacking part. The stacking part is arranged on the top surface of the bin body and extends into the bin body, and the stacking part is suitable for stacking test tubes; a conveying part, the conveying part is arranged in the bin body and below the stacking part; the operation difficulty of this pneumatic conveying device is large and the conveying accuracy is low.

[0005] When the above pneumatic conveying device discharges raw materials by means of a hose, the raw materials impact the inner wall of the hose for a long time, and when the discharging rate of the raw materials in the discharging pipe changes, the impact force of the raw materials on different positions of the inner wall of the hose changes correspondingly, which is likely to cause the hose to swing randomly, resulting in blockage of the raw materials in the discharging pipe or the hose, and ultimately reducing the subsequent discharging efficiency.

[0006] At the same time, when the raw materials in the discharging pipe are discharged for a long time, part of the raw materials are likely to adhere to the inner wall of the discharging pipe. If it cannot be thoroughly scraped and cleaned, it will not only reduce the discharging rate of the discharging pipe, but also cause pollution to the subsequent discharge of raw materials.

[0007] When the impact force exerted by the raw materials in the discharging pipe on the inner wall of the hose is too large, the hose may be damaged or disconnected from the discharging pipe and inserted, causing the raw materials to be directly discharged to the ground, resulting in the raw materials being unable to be recycled and wasted. Summary of the Invention

[0008] In view of the above problems, the present invention provides a pneumatic conveying device for mixed materials.

[0009] To achieve the above object, the present invention provides the following technical solution: A pneumatic conveying device for a mixed material, comprising a storage component, an upper feeding component is rotatably connected inside the storage component, a lower feeding component is provided on one side of the storage component, and a conveying component is provided at the output end of the lower feeding component; The storage component includes a tank body, and an inner cavity is provided inside the tank body; The upper feeding component includes a rotating shaft; The lower feeding component includes a plurality of discharging pipes, a plurality of moving blocks are uniformly movably connected to the outer surface of the discharging pipes, a clamping groove is formed in the side wall of the moving block, a pressure sensor is provided on the inner wall of the clamping groove, a wedge-shaped movable plate is provided on the side of the moving block away from the tank body, a support block is provided on the side of the discharging pipe away from the tank body, a plurality of side grooves are uniformly formed on the circumferential surface of the support block, a wedge-shaped block is hermetically slidably connected inside the side groove, and an elastic block is movably connected inside the discharging pipe; The conveying component includes a hose.

[0010] The raw material flows inside the discharging pipe and the hose. When the pressure value detected by the pressure sensor increases, the moving block drives the wedge-shaped movable plate to move away from the tank body end. The wedge-shaped movable plate buffers and blocks the inner wall of the hose for protection. At the same time, the wedge-shaped movable plate is in wedge-shaped cooperation with the wedge-shaped block and drives the wedge-shaped block to move inward along the side groove. The volume of the corrugated pipe increases and drives the elastic block to tilt on this side, thereby adjusting the inclined discharging distribution of the elastic block to the raw material. When the pressure value detected by the pressure sensor reaches the maximum value, the moving block drives the wedge-shaped movable plate to move towards the tank body end to the maximum distance, the elastic block fits with the support block, and the raw material inside the discharging pipe no longer discharges.

[0011] Preferably, the input end of the discharging pipe passes through the tank body and is communicated with the inside of the inner cavity, the output end of the discharging pipe is communicated with the inside of the hose, a fixing ring is provided on the outer surface of the discharging pipe, a plurality of electric push rods are uniformly provided on the side of the fixing ring away from the tank body, and the output end of the electric push rod is fixedly connected to the side wall of the moving block.

[0012] Preferably, the pressure sensor is used to detect the pressure value on the inner wall of the clamping groove. The wedge-shaped movable plate is in wedge-shaped cooperation with the wedge-shaped block. The wedge-shaped movable plate is movably connected inside the hose. A connecting spring is provided on the inner wall of the side groove, and the other end of the connecting spring is fixedly connected to the side wall of the wedge-shaped block.

[0013] Preferably, a plurality of docking holes are uniformly provided inside the support block, a plurality of communication holes are uniformly formed on the side of the side groove close to the tank body, a relief groove is formed at the other end of the communication hole, a corrugated pipe is provided on the inner wall of the relief groove, the other end of the corrugated pipe is fixedly connected to the side wall of the elastic block, the elastic block has elasticity, and a plurality of filter holes are uniformly provided inside the elastic block, and the filter holes are misaligned with the docking holes.

[0014] Preferably, a plurality of top blocks are evenly arranged on the top of the hose, a hook is arranged on the top of the top block, the hook is fixedly connected to the card slot, an airflow tube is arranged below the hose, one end of the airflow tube is connected to a gas generator, the other end of the airflow tube is connected to a feed bin of an extruder, a splicing hole is opened on the top of the airflow tube, and the inner wall of the splicing hole is plugged and fixed to the lower outer surface of the hose.

[0015] Preferably, the bottom of the tank body is connected with a vertical tube, a stirring chamber is opened inside the vertical tube, the top of the stirring chamber is connected with the bottom of the inner cavity, a support plate is provided inside the vertical tube, bearing seats are provided at the axis of the support plate and the tank body, and a side hole is opened on one side of the vertical tube.

[0016] Preferably, a hopper is provided on the side wall of the vertical tube, the bottom output end of the hopper matches the side hole, a controller is provided on the side wall of the hopper, a plurality of legs are evenly provided on the surrounding side surface of the tank body, a base frame is provided on the inner wall of the plurality of legs, a mounting plate is provided on the top of the base frame, and the top of the mounting plate is fixedly connected to the bottom of the vertical tube.

[0017] Preferably, the rotating shaft matches the axis of the inner cavity and the stirring cavity, the outer surface of the rotating shaft is provided with an auger, the peripheral side of the auger is in contact with the inner wall of the vertical pipe, and the top and bottom of the rotating shaft are provided with a transmission rod, and the outer surface of the transmission rod is rotatably connected to the inner wall of the bearing seat.

[0018] Preferably, an L-shaped rod is provided on one side of the leg, a driving motor is provided on one side of the L-shaped rod, a driving wheel is provided at the output end of the driving motor, the top of the rotating shaft passes through the tank body and is provided with a driven wheel, the outer surfaces of the driving wheel and the driven wheel are connected by belts, a cross frame is provided on the top of the leg, a protective shell is provided on the top of the cross frame, and the driving wheel, belt and driven wheel are all located inside the protective shell.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the pneumatic conveying device is simple to operate, safe and stable, and can effectively realize continuous and efficient pneumatic conveying of raw materials. It has strong adaptability, can meet the conveying requirements of different raw materials, has good controllability, high stability, high conveying efficiency, and good conveying effect.

[0020] 2. In the present invention, the impact force exerted by the raw materials on the inner wall of the hose can be reduced during the transportation process, and the buffering and blocking effect on the hose can be adjusted accordingly when the amount of raw materials inside the discharge pipe changes. The buffering and blocking effect is good, and the continuous durability of the hose is improved.

[0021] 3. In the present invention, during the movement of the hose and the elastic block, vibration dredging and blockage removal of the internal raw materials are correspondingly realized, avoiding blockage of some raw materials and reducing the fluidity of subsequent raw materials.

[0022] 4. In the present invention, when the impact force of the raw materials on the hose is too large, the elastic block and the support block are squeezed into contact to achieve the blocking effect on the discharge pipe, thus effectively avoiding damage to the inner wall of the hose or detachment from the discharge pipe and reducing the conveying effect of the raw materials.

[0023] 5. In the present invention, after the conveying is completed, the elastic block moves back and forth at a high frequency inside the discharge pipe, thereby realizing scraping and cleaning of the inner wall of the discharge pipe, avoiding adhesion of some raw materials to the inner wall of the discharge pipe and causing pollution to the conveying of subsequent raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural schematic diagram of another perspective of the present invention; Figure 3 is a three-dimensional structural schematic diagram of the front view of the interior of the present invention; Figure 4 is Figure 3 an enlarged schematic diagram of part A in Figure 5 is a three-dimensional exploded structural schematic diagram of the storage component and the feeding component of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the discharging component and the conveying component of the present invention; Figure 7 is a three-dimensional structural schematic diagram of the front view of the interior of the discharging component of the present invention; Figure 8 is a three-dimensional structural schematic diagram of the front view of the interior of the discharging component of the present invention; Figure 9 is Figure 8 an enlarged schematic diagram of part B in Figure 10 is a three-dimensional structural schematic diagram of the conveying component of the present invention.

[0025] In the figure: 1. Storage component; 101. Tank body; 102. Inner cavity; 103. Vertical pipe; 104. Stirring cavity; 105. Side hole; 106. Hopper; 107. Controller; 108. Support plate; 109. Bearing seat; 110. Leg; 111. Mounting plate; 112. Underframe; 2. Feeding component; 201. Rotating shaft; 202. Auger; 203. Transmission rod; 204. L-shaped rod; 205. Driving motor; 206. Driving wheel; 207. Belt; 208. Driven wheel; 209. Protective housing; 210. Cross frame; 3. Discharging component; 301. Discharge pipe; 302. Fixed ring; 303. Electric push rod; 304. Moving block; 305. Clamping groove; 306. Pressure sensor; 307. Wedge-shaped movable plate; 308. Support block; 309. Docking hole; 310. Side groove; 311. Wedge block; 312. Connecting spring; 313. Communication hole; 314. Bellows; 315. Elastic block; 316. Filter hole; 317. Relief groove; 4. Conveying component; 401. Hose; 402. Top block; 403. Hook; 404. Air flow pipe; 405. Splicing hole; 406. Gas generator. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1 - Figure 10 shown, a pneumatic conveying device for mixed materials includes a storage component 1. An inner part of the storage component 1 is rotatably connected with a feeding component 2. The feeding component 2 feeds materials into the storage component 1. The storage component 1 temporarily stores raw materials and waits for subsequent mixing and extrusion molding. One side of the storage component 1 is provided with a discharging component 3. An output end of the discharging component 3 is provided with a conveying component 4. The conveying component 4 mainly adopts a pneumatic conveying method. After the conveying component 4 is started, under the action of negative pressure, the raw materials inside the storage component 1 enter the conveying component 4 along the discharging component 3 for subsequent conveying processes.

[0028] The storage component 1 includes a tank body 101. An inner cavity 102 is provided inside the tank body 101, and the inner cavity 102 is used for temporarily storing raw materials. A vertical pipe 103 is connected to the bottom of the tank body 101. A stirring cavity 104 is formed inside the vertical pipe 103. The upper part of the stirring cavity 104 is communicated with the lower part of the inner cavity 102. Therefore, the raw materials inside the stirring cavity 104 can enter the inner cavity 102 upward for temporary storage. A support plate 108 is provided inside the vertical pipe 103. The support plate 108 is used to support and limit the inner bottom of the stirring cavity 104, and cooperate with the rotation of the rotating shaft 201 to realize the upward transmission of raw materials. A bearing seat 109 is provided at the axis centers of the support plate 108 and the tank body 101. A side hole 105 is formed on one side of the vertical pipe 103. The raw materials enter the stirring cavity 104 along the side hole 105 for stirring and storage.

[0029] A hopper 106 is provided on the side wall of the vertical pipe 103. The bottom output end of the hopper 106 is matched with the side hole 105. When raw materials are poured into the hopper 106, the raw materials inside the hopper 106 enter the stirring cavity 104 along the inside of the side hole 105. A controller 107 is provided on the side wall of the hopper 106. The controller 107 electrically controls each electrical component. A plurality of legs 110 are evenly provided on the circumferential side of the tank body 101. The legs 110 support and fix the tank body 101, and buffer pads are provided at the bottoms of the legs 110, thereby improving the support stability of the legs 110 for the tank body 101. A chassis 112 is provided on the inner walls of the plurality of legs 110. An installation plate 111 is provided on the top of the chassis 112. The top of the installation plate 111 is fixedly connected to the bottom of the vertical pipe 103. The chassis 112 and the installation plate 111 cooperate to further improve the fixed support of the vertical pipe 103 and the upper tank body 101, and the vertical state of the tank body 101 and the vertical pipe 103 ensures the stability and dredging of the subsequent raw materials entering the inner cavity 102 upward along the stirring cavity 104.

[0030] The feeding component 2 includes a rotating shaft 201. The rotating shaft 201 is matched with the axis centers of the inner cavity 102 and the stirring cavity 104. The rotating shaft 201 rotates inside the inner cavity 102 and the stirring cavity 104 to realize the upward transmission of raw materials. A auger 202 is provided on the outer surface of the rotating shaft 201. The circumferential side of the auger 202 is in contact with the inner wall of the vertical pipe 103. The auger 202 rotates inside the stirring cavity 104 and rotates in mutual fit with the inner wall of the vertical pipe 103, thereby improving the stability and continuity of the raw materials inside the stirring cavity 104 entering the inner cavity 102 upward. Transmission rods 203 are provided at the top and bottom of the rotating shaft 201. The outer surfaces of the transmission rods 203 are rotatably connected to the inner walls of the bearing seats 109. The transmission rods 203 and the bearing seats 109 cooperate to further improve the rotation stability of the rotating shaft 201.

[0031] On one side of the outrigger 110, there is an L-shaped rod 204. On one side of the L-shaped rod 204, there is a driving motor 205. The L-shaped rod 204 supports and fixes the driving motor 205. At the output end of the driving motor 205, there is a driving wheel 206. The top of the rotating shaft 201 passes through the tank body 101 and is provided with a driven wheel 208. The outer surfaces of the driving wheel 206 and the driven wheel 208 are drivingly connected by a belt 207. When the driving motor 205 starts and drives the driving wheel 206 to rotate, the driving wheel 206 drives the driven wheel 208 to rotate through the belt 207. The driven wheel 208 synchronously drives the rotating shaft 201 to rotate and feed materials inside the inner cavity 102 and the stirring cavity 104. On the top of the outrigger 110, there is a cross frame 210. On the top of the cross frame 210, there is a protective shell 209. The driving wheel 206, the belt 207 and the driven wheel 208 are all located inside the protective shell 209. The setting of the protective shell 209 further improves the protection effect on the internal driving wheel 206, the belt 207 and the driven wheel 208.

[0032] The blanking assembly 3 includes a plurality of discharge pipes 301, and the plurality of discharge pipes 301 are all inclined. In actual use, a plurality of discharge pipes 301 can be connected to the outer surface of the tank body 101 according to needs. When in use, only need to connect the hose 401 with a certain discharge pipe 301 for clamping and connection. The setting of the plurality of discharge pipes 301 is convenient for timely replacement and use when a certain one is damaged, and thus does not affect the normal blanking efficiency. For the convenience of description, this application takes one discharge pipe 301 as an example.

[0033] The input end of the discharge pipe 301 passes through the tank body 101 and is connected to the inside of the inner cavity 102. The output end of the discharge pipe 301 is connected to the inside of the hose 401. The raw materials inside the inner cavity 102 enter the hose 401 along the discharge pipe 301 for flowing and blanking.

[0034] A plurality of moving blocks 304 are evenly movably connected to the outer surface of the discharge pipe 301. The moving blocks 304 can move on the outer surface of the discharge pipe 301 according to needs, further improving the subsequent regulation function of the blanking rate and the protection of the inner wall of the hose 401. On the outer surface of the discharge pipe 301, there is a fixing ring 302. The position of the fixing ring 302 remains unchanged. On the side of the fixing ring 302 away from the tank body 101, a plurality of electric push rods 303 are evenly provided. The output end of the electric push rod 303 is fixedly connected to the side wall of the moving block 304. When the electric push rod 303 starts, it drives the moving block 304 to move on the outer surface of the discharge pipe 301, thereby changing the position of the moving block 304.

[0035] The side wall of the moving block 304 is provided with a clamping groove 305 for subsequent clamping and fixing with the hose 401. The inner wall of the clamping groove 305 is provided with a pressure sensor 306 for detecting the pressure value received by the inner wall of the clamping groove 305. On the side of the moving block 304 away from the tank body 101, there is a wedge-shaped movable plate 307 which is movably connected inside the hose 401. The wedge-shaped movable plate 307 moves synchronously with the movement of the moving block 304, and the thickness of the wedge-shaped movable plate 307 inside the hose 401 changes synchronously with the movement of the moving block 304, thereby realizing the buffer protection of the inner wall of the hose 401.

[0036] On the side of the discharge pipe 301 away from the tank body 101, there is a support block 308. A plurality of docking holes 309 are evenly arranged inside the support block 308. The support block 308 supports and protects the end of the discharge pipe 301, and the docking holes 309 filter and dredge the raw materials discharged from the discharge pipe 301, avoiding the excessive impact damage to the inner wall of the hose 401 due to the too fast discharge rate of the raw materials inside the discharge pipe 301 when discharging downward. A plurality of side grooves 310 are evenly arranged on the circumferential side surface of the support block 308. A wedge-shaped block 311 is hermetically and slidably connected inside the side grooves 310. The wedge-shaped movable plate 307 is in wedge-shaped cooperation with the wedge-shaped block 311. Therefore, when the wedge-shaped movable plate 307 moves downward, the wedge-shaped movable plate 307 is in wedge-shaped cooperation with the wedge-shaped block 311 and drives the wedge-shaped block 311 to move inward along the side grooves 310. A connecting spring 312 is arranged on the inner wall of the side grooves 310, and the other end of the connecting spring 312 is fixedly connected to the side wall of the wedge-shaped block 311. The arrangement of the connecting spring 312 further realizes the elastic reset effect of the wedge-shaped block 311.

[0037] An elastic block 315 is movably connected inside the discharge pipe 301. The elastic block 315 moves inside the discharge pipe 301 and undergoes elastic deformation, thereby not only realizing the scraping and cleaning of the inner wall of the discharge pipe 301, but also adjusting the discharging rate of the raw materials inside the discharge pipe 301, avoiding the accumulation of the raw materials inside the discharge pipe 301 and affecting the connection stability of the hose 401.

[0038] A plurality of communication holes 313 are evenly formed on one side of the side groove 310 close to the tank body 101. The other end of the communication hole 313 is provided with a relief groove 317. A corrugated pipe 314 is arranged on the inner wall of the relief groove 317. The communication hole 313 connects the side groove 310 with the gas inside the corrugated pipe 314. The other end of the corrugated pipe 314 is fixedly connected to the side wall of the elastic block 315. Therefore, when the wedge-shaped block 311 presses the connecting spring 312 along the side groove 310 and moves inward, the gas inside the side groove 310 enters the inside of the corrugated pipe 314 along the communication hole 313. When the volume of the corrugated pipe 314 increases, the elastic block 315 is correspondingly driven to move upward along the discharge pipe 301. The elastic block 315 has elasticity. A plurality of filter holes 316 are evenly arranged inside the elastic block 315. At the same time, the elastic reciprocating vibration of the elastic block 315 can vibrate and clear the blockage of the filter holes 316 inside itself. Further, to improve the filtering and unblocking effect of the filter holes 316 on the raw materials, the filter holes 316 and the docking holes 309 are arranged in a staggered manner, and the diameters of both the filter holes 316 and the docking holes 309 are larger than the diameter of the raw materials. Therefore, the filter holes 316 also filter and unblock the raw materials inside the discharge pipe 301. When the elastic block 315 comes into contact and fits with the support block 308, both the docking hole 309 and the filter holes 316 are blocked in a staggered manner, and the raw materials inside the discharge pipe 301 no longer flow into the inside of the hose 401. And when the elastic block 315 reciprocates and vibrates elastically inside the discharge pipe 301, the distribution amount of the raw materials inside the discharge pipe 301 changes correspondingly, and then the impact flow momentum exerted by the raw materials on the docking holes 309 inside the support block 308 changes correspondingly, thereby effectively improving the impact and blockage clearing effect on the blocked raw materials inside the docking holes 309 and avoiding the raw materials being stuck inside the docking holes 309 for a long time and affecting the flow of subsequent raw materials.

[0039] The conveying assembly 4 includes a hose 401. The hose 401 connects the raw materials discharged from the discharge pipe 301. At the same time, the arrangement of the hose 401 facilitates the arbitrary connection of the discharge pipes 301 at different positions, improving the dredging property and discharging efficiency. A plurality of top blocks 402 are evenly arranged on the top of the hose 401. A hook 403 is arranged on the top of the top block 402. The hook 403 is fixedly connected to the clamping groove 305. Therefore, when assembling the hose 401, only need to put the hose 401 on the outer surface of the discharge pipe 301, and at the same time, fix the hook 403 to the clamping groove 305, further improving the assembly efficiency of the hose 401 and the subsequent impact buffering effect of the raw materials on the inner wall of the hose 401.

[0040] Below the hose 401, there is an air flow pipe 404. One end of the air flow pipe 404 is connected to a gas generator 406, and the other end of the air flow pipe 404 is connected to the feed bin of the extruder. When the gas generator 406 is started and gas is introduced into the air flow pipe 404, the gas flow rate inside the air flow pipe 404 increases and a suction force is applied to the inside of the hose 401. Then, the raw materials discharged from the discharge pipe 301 enter the air flow pipe 404 through the hose 401 for circulation, and finally enter the feed bins of multiple extruders for feeding, further improving the feeding accuracy and efficiency of subsequent extrusion molding. A splicing hole 405 is opened at the top of the air flow pipe 404, and the inner wall of the splicing hole 405 is inserted and fixed with the outer surface below the hose 401. The splicing hole 405 connects and fixes the bottom of the air flow pipe 404. Then, the position below the hose 401 is fixed. It only needs to be clamped and fixed with different discharge pipes 301 at the top of the hose 401 according to requirements.

[0041] When the above discharge pipe 301 continuously discharges materials and enters the inside of the hose 401 for circulation, the raw materials impact the inner wall of the hose 401 for a long time. And when the discharge rate of the raw materials inside the discharge pipe 301 changes, the impact force of the raw materials on the inner wall at different positions of the hose 401 changes accordingly, which is likely to cause blockage inside the discharge pipe 301 or the hose 401, ultimately reducing the subsequent discharge efficiency. At the same time, when the raw materials inside the discharge pipe 301 are discharged for a long time, some raw materials are likely to adhere to the inner wall of the discharge pipe 301. If it cannot be effectively and thoroughly scraped and cleaned, it will not only reduce the discharge rate of the discharge pipe 301, but also pollute the discharge of subsequent raw materials. And when the impact force applied by the raw materials inside the discharge pipe 301 on the inner wall of the hose 401 is too large, the hose 401 may be disengaged from the discharge pipe 301, causing the raw materials to be directly discharged to the ground, resulting in the inability to recycle the raw materials and waste.

[0042] To solve the above problems, when the pneumatic conveying device for the mixed material is actually used, first, different raw materials are poured into the hopper 106 at the corresponding position according to requirements. The raw materials inside the hopper 106 enter the stirring chamber 104 of the vertical pipe 103 along the side holes 105. At the same time, the controller 107 controls the driving motor 205 to start. The driving motor 205 drives the driving wheel 206 to rotate. The driving wheel 206 drives the driven wheel 208 to rotate through the belt 207. The driven wheel 208 drives the rotating shaft 201 to rotate. The rotating shaft 201 drives the auger 202 to rotate. The auger 202 rotates inside the stirring chamber 104 and drives the raw materials to continuously enter the inner cavity 102 for temporary storage. When the amount of raw materials in the inner cavity 102 reaches a certain value and feeding is no longer required, the controller 107 controls the driving motor 205 to stop working and covers and blocks the hopper 106. Then the raw materials are stored inside the inner cavity 102 and the stirring chamber 104 waiting to be conveyed into the extruder later. At this time, the elastic block 315 is in contact and fits with the support block 308, and the docking hole 309 and the filtering hole 316 are misaligned and blocked, so the raw materials inside the discharge pipe 301 cannot be discharged outward.

[0043] Afterwards, if feeding is needed, initially, the output end of the electric push rod 303 drives the moving block 304 to be in the initial position. The upper end of the hose 401 is sleeved on the outer surface of a certain discharge pipe 301. At the same time, multiple hooks 403 are clamped inside the clamping groove 305. When the pressure sensor 306 detects the pressure value, the lower output end of the discharge pipe 301 is located inside the hose 401. Then the controller 107 controls the gas generator 406 to start and introduce gas into the air flow pipe 404. The gas circulates inside the air flow pipe 404 and applies negative pressure to the splicing hole 405. At the same time, the controller 107 controls the electric push rod 303 to start and the output end extends. The output end of the electric push rod 303 drives the wedge-shaped movable plate 307 to move. The wedge-shaped movable plate 307 is in wedge-shaped cooperation with the wedge-shaped block 311 and drives the wedge-shaped block 311 to squeeze the connecting spring 312 to move along the side groove 310. The gas inside the side groove 310 enters the corrugated pipe 314 along the communication hole 313. The volume of the corrugated pipe 314 increases and drives the elastic block 315 to move towards the end close to the tank body 101. The elastic block 315 disengages from the contact block with the support block 308, and both the docking hole 309 and the filtering hole 316 are in a communicating state. The raw materials inside the inner cavity 102 continuously enter the discharge pipe 301. At this time, with the filtering and dredging effect of the filtering hole 316 inside the elastic block 315 and the docking hole 309 inside the support block 308 on the raw materials, the raw materials continuously enter the hose 401 for circulation and finally enter the air flow pipe 404 along the splicing hole 405 and reach the feeding bins of each extruder under the action of the air flow, thereby improving the basic forming efficiency of the subsequent extruder.

[0044] Meanwhile, by virtue of the inclined setting of the discharge pipe 301 and the sliding inertia of the raw materials themselves, when the raw materials reach the inside of the hose 401 along the discharge pipe 301, the impact force exerted by the raw materials on the inner top of the hose 401 increases. The hose 401 drives the hook 403 through the top block 402 to increase the extrusion force exerted on the inner wall of the clamping groove 305, and the pressure value detected by the pressure sensor 306 increases. To ensure the protection of the inner wall of the hose 401, the controller 107 controls the electric push rod 303 to start and its output end extends. The output end of the electric push rod 303 drives the moving block 304 to move away from the tank body 101. The moving block 304 drives the top block 402 to move through the hook 403 inside the clamping groove 305, and the top block 402 drives the hose 401 to move. The hose 401 moves away from the tank body 101, thereby changing the impact position of the raw materials inside the discharge pipe 301 on the inner wall of the hose 401 and ensuring the continuous and stable feeding effect of the hose 401.

[0045] And when the moving block 304 moves, it synchronously drives the wedge-shaped movable plate 307 to move. The distance between the wedge-shaped movable plate 307 and the lower part of the discharge pipe 301 increases, so that the raw materials discharged from the discharge pipe 301 face the inner wall of the wedge-shaped movable plate 307. With the help of the wedge-shaped movable plate 307, the blocking and buffering effect on the raw materials discharged from the discharge pipe 301 can be further improved, avoiding the raw materials from exerting impact force on the inner wall of the hose 401 for a long time and causing damage to its structure, effectively improving the service sustainability and efficiency of the hose 401. At the same time, when the wedge-shaped movable plate 307 moves, it is wedge-shapedly matched with the wedge-shaped block 311 and drives the wedge-shaped block 311 to squeeze the connecting spring 312 inward along the side groove 310. The gas inside the side groove 310 enters the inside of the corrugated pipe 314 along the communication hole 313. The volume of the corrugated pipe 314 increases and drives the elastic block 315 to move along the inner wall of the discharge pipe 301 towards the tank body 101. The distance between the elastic block 315 and the support block 308 increases, thereby ensuring the stability and dredging of the raw materials flowing inside the discharge pipe 301 and avoiding the blockage of the raw materials inside the discharge pipe 301 and affecting the subsequent normal flow.

[0046] Afterwards, when the amount of raw materials on one side inside the discharge pipe 301 increases, the amount of raw materials entering the inside of the flexible hose 401 from the discharge pipe 301 increases, and the impact force exerted by the corresponding raw materials on the inner wall of the flexible hose 401 increases. For example, when the impact force exerted by the discharge pipe 301 on the inner top of the flexible hose 401 increases, the flexible hose 401 drives the hook 403 to move synchronously inside the upper clamping groove 305 through the top block 402, and the pressure value detected by the upper pressure sensor 306 correspondingly increases. The controller 107 controls the upper electric push rod 303 to start and its output end extends. The electric push rod 303 drives the moving block 304 to move away from the end of the tank body 101. The moving block 304 synchronously drives the end of the wedge-shaped movable plate 307 to move. The distance that the wedge-shaped movable plate 307 extends out of the end of the discharge pipe 301 increases, further improving the blocking and buffering effect of the wedge-shaped movable plate 307 on the discharged raw materials of the discharge pipe 301. At the same time, when the moving block 304 moves, it synchronously drives the flexible hose 401 to move. Then, the raw materials discharged from the discharge pipe 301 impact and feed at different positions of the flexible hose 401, avoiding the accumulation and impact of raw materials on the inner top of the flexible hose 401 and causing damage to the inner wall of the flexible hose 401.

[0047] When the wedge-shaped movable plate 307 moves, it is in wedge-shaped cooperation with the wedge-shaped block 311 and drives the wedge-shaped block 311 to move inward along the side groove 310 by squeezing the connecting spring 312. The gas inside the side groove 310 enters the inside of the corrugated pipe 314 along the communication hole 313. The volume of the corrugated pipe 314 located above increases and drives the elastic block 315 to move upward towards the end of the tank body 101. The elastic block 315 is inclined inside the discharge pipe 301, that is, the elastic block 315 is not coaxial with the discharge pipe 301. Then, the raw materials inside the discharge pipe 301 flow and gather downward in the discharge pipe 301 under the inclined blocking action of the elastic block 315, thereby avoiding uneven distribution of raw materials inside the discharge pipe 301 and exerting uneven acting forces on the inner wall of the flexible hose 401, further improving the flow stability and dredging property of the discharge pipe 301 and the flexible hose 401, and ensuring the continuous and stable transmission of raw materials.

[0048] At the same time, when the moving block 304 drives the flexible hose 401 to move at the end of the discharge pipe 301, the flexible hose 401 synchronously shakes and dredges the raw materials inside, avoiding the accumulation of raw materials inside the flexible hose 401 and affecting the normal feeding of subsequent raw materials. At the same time, the corrugated pipe 314 drives the elastic block 315 to move inside the discharge pipe 301, which can also scrape and clean the raw materials adhered to the inner wall of the discharge pipe 301. Furthermore, under the action of promoting and dredging the raw materials inside the discharge pipe 301, the cleanliness of the inner wall of the discharge pipe 301 is further improved, avoiding pollution to the pneumatic conveying of subsequent raw materials. Moreover, when the elastic block 315 reciprocates inside the discharge pipe 301, it cooperates with the impact effect of the raw materials to achieve its own vibration and clogging clearing effect, avoiding some raw materials from being blocked inside the filtering holes 316 and reducing the dredging fluidity of subsequent raw materials.

[0049] After the above process, the impact force on the inner wall of the hose 401 is continuously reduced, and the corresponding pressure value detected by the pressure sensor 306 is continuously reduced. The controller 107 controls the electric push rod 303 to start and the output end is shortened to the initial value. The electric push rod 303 then drives the moving block 304 to move in the opposite direction to the initial value. The above process is continuously repeated to discharge subsequent raw materials.

[0050] When the impact force of the raw materials on the inner wall of the hose 401 is too great, the hose 401 drives the hook 403 to apply the extrusion pressure to the inner wall of the clamping groove 305 to continuously increase to a maximum value through the top block 402, and the pressure value detected by the pressure sensor 306 reaches the set maximum pressure value. At this time, if the discharge pipe 301 continues to discharge material, it is easy to apply excessive impact force to the inner wall of the hose 401 and cause damage to the hose 401 or detachment from the discharge pipe 301.

[0051] Therefore, the controller 107 controls the electric push rod 303 to start and the output end is shortened to the minimum value, then the electric push rod 303 drives the moving block 304 to move to the maximum distance close to the tank body 101 end, and the moving block 304 simultaneously drives the wedge-shaped movable plate 307 to move to the maximum distance, and the wedge-shaped matching force between the wedge-shaped movable plate 307 and the wedge-shaped block 311 is reduced, then the wedge-shaped block 311 is driven to move outward along the side groove 310 under the elastic force of the connecting spring 312, and the internal volume of the side groove 310 increases and the pressure decreases. At the same time, the raw material inside the discharge pipe 301 exerts a thrust on the elastic block 315 Under the present invention, the gas inside the bellows 314 flows back to the inside of the side groove 310 along the connecting hole 313, and the volume of the bellows 314 is continuously reduced and retracted into the inside of the make way groove 317, and the elastic block 315 is synchronously moved away from the end of the tank body 101 and fixed to the side wall of the support block 308. However, due to the misaligned distribution of the docking hole 309 and the filter hole 316, the raw material inside the discharge pipe 301 cannot continue to be discharged through the docking hole 309 and the filter hole 316, thereby further realizing the rapid blocking of the discharge pipe 301 and preventing the raw material inside the discharge pipe 301 from being unable to be centrally recovered along the hose 401 and causing waste.

[0052] The raw material inside the hose 401 enters the airflow tube 404 along the splicing hole 405, and is continuously transported backward to the feed bin of the extruder under the action of the airflow to be fed and extruded, thereby starting the conveying process.

[0053] When the raw materials inside the inner cavity 102 are discharged along the discharge pipe 301, there is no longer raw material flowing inside the discharge pipe 301. At this time, the controller 107 controls the electric push rod 303 to start continuously and the output end extends and retracts. The electric push rod 303 drives the moving block 304 to reciprocate on the outer surface of the discharge pipe 301. The moving block 304 drives the hose 401 to vibrate reciprocally through the hook 403 and the top block 402, so as to ensure that the raw materials inside the hose 401 quickly and efficiently enter the air flow pipe 404 through the splicing hole 405 for flowing transmission. At the same time, the moving block 304 drives the wedge-shaped movable plate 307 to reciprocate. The wedge-shaped movable plate 307 is in wedge-shaped cooperation with the wedge-shaped block 311 and drives the wedge-shaped block 311 to reciprocate inside the side groove 310. The gas inside the side groove 310 continuously reciprocates inside the corrugated pipe 314 through the communication hole 313. The corrugated pipe 314 drives the elastic block 315 to reciprocate inside the discharge pipe 301 and realizes the reciprocating scraping and cleaning of the inner wall of the discharge pipe 301, further improving the dredging property of the discharge pipe 301 and preventing excessive raw materials from adhering to the inner wall of the discharge pipe 301 and causing pollution to the discharge of subsequent raw materials.

[0054] After the inner wall of the discharge pipe 301 is scraped and cleaned, the hopper 106 is opened, and raw materials are continuously poured into the hopper 106, and the above process is repeated to start the transportation of subsequent raw materials.

[0055] This pneumatic conveying device is simple to operate, safe and stable, effectively realizes the continuous and efficient pneumatic conveying of raw materials, has strong adaptability, meets the conveying requirements of different raw materials, has good controllability, high stability, high conveying efficiency and good conveying effect; and can also reduce the impact force exerted by the raw materials on the inner wall of the hose 401 during the conveying process, and correspondingly adjust the buffer and blocking effect on the hose 401 when the amount of raw materials inside the discharge pipe 301 changes, with good buffer and blocking effect and improved continuous durability of the hose 401; at the same time, during the movement of the hose 401 and the elastic block 315, the vibration dredging and blockage clearing of the internal raw materials are correspondingly realized, avoiding the blockage of some raw materials and reducing the fluidity of subsequent raw materials; when the impact force on the hose 401 by the raw materials is too large, the elastic block 315 and the support block 308 are in extrusion contact and realize the blocking effect on the discharge pipe 301, thus effectively avoiding the damage of the inner wall of the hose 401 or the separation from the discharge pipe 301 and reducing the conveying effect of the raw materials; and when the conveying is completed, the elastic block 315 reciprocates at a high frequency inside the discharge pipe 301, thereby realizing the scraping and cleaning of the inner wall of the discharge pipe 301 and preventing some raw materials from adhering to the inner wall of the discharge pipe 301 and causing pollution to the conveying of subsequent raw materials.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic conveying device for a mixed material, characterized in that, It includes a storage component (1), an upper feeding component (2) is rotatably connected inside the storage component (1), a discharging component (3) is provided on one side of the storage component (1), and a conveying component (4) is provided at the output end of the discharging component (3); The storage component (1) includes a tank body (101), and an inner cavity (102) is provided inside the tank body (101); The upper feeding component (2) includes a rotating shaft (201); The discharging component (3) includes a plurality of discharging pipes (301), a plurality of moving blocks (304) are evenly and movably connected to the outer surface of the discharging pipe (301), a clamping groove (305) is formed in the side wall of the moving block (304), a pressure sensor (306) is provided on the inner wall of the clamping groove (305), a wedge-shaped movable plate (307) is provided on the side of the moving block (304) away from the tank body (101), a support block (308) is provided on the side of the discharging pipe (301) away from the tank body (101), a plurality of side grooves (310) are evenly formed in the circumferential side surface of the support block (308), a wedge-shaped block (311) is hermetically and slidably connected inside the side groove (310), and an elastic block (315) is movably connected inside the discharging pipe (301); The conveying component (4) includes a hose (401).

2. The pneumatic conveying device for a mixed material according to claim 1, wherein The input end of the discharging pipe (301) passes through the tank body (101) and is communicated with the inside of the inner cavity (102), the output end of the discharging pipe (301) is communicated with the inside of the hose (401), a fixing ring (302) is provided on the outer surface of the discharging pipe (301), a plurality of electric push rods (303) are evenly provided on the side of the fixing ring (302) away from the tank body (101), and the output end of the electric push rod (303) is fixedly connected to the side wall of the moving block (304).

3. The pneumatic conveying device for a mixed material according to claim 1, wherein The pressure sensor (306) is used to detect the pressure value on the inner wall of the clamping groove (305), the wedge-shaped movable plate (307) is in wedge-shaped fit with the wedge-shaped block (311), the wedge-shaped movable plate (307) is movably connected inside the hose (401), a connecting spring (312) is provided on the inner wall of the side groove (310), and the other end of the connecting spring (312) is fixedly connected to the side wall of the wedge-shaped block (311).

4. A pneumatic conveying device for a mixed material according to claim 1, characterized in that, A plurality of docking holes (309) are evenly provided inside the support block (308), a plurality of communication holes (313) are evenly formed on the side of the side groove (310) close to the tank body (101), a relief groove (317) is formed at the other end of the communication hole (313), a corrugated pipe (314) is provided on the inner wall of the relief groove (317), the other end of the corrugated pipe (314) is fixedly connected to the side wall of the elastic block (315), the elastic block (315) has elasticity, and a plurality of filter holes (316) are evenly provided inside the elastic block (315), and the filter holes (316) are misaligned with the docking holes (309).

5. A pneumatic conveying device for a mixed material according to claim 1, characterized in that, A plurality of top blocks (402) are evenly arranged at the top of the hose (401). A hook (403) is arranged at the top of the top block (402). The hook (403) is fixedly connected with the clamping groove (305) in a clamping manner. An air flow pipe (404) is arranged below the hose (401). One end of the air flow pipe (404) is communicated with a gas generator (406). The other end of the air flow pipe (404) is communicated with the feed bin of the extruder. A splicing hole (405) is formed in the top of the air flow pipe (404). The inner wall of the splicing hole (405) is fixedly connected with the outer surface below the hose (401) in an inserting manner.

6. The pneumatic conveying device for a mixed material according to claim 1, characterized in that, A vertical pipe (103) is communicated with the bottom of the tank body (101). A stirring cavity (104) is formed inside the vertical pipe (103). The upper part of the stirring cavity (104) is communicated with the lower part of the inner cavity (102). A support plate (108) is arranged inside the vertical pipe (103). A bearing seat (109) is arranged at the axial centers of the support plate (108) and the tank body (101). A side hole (105) is formed in one side of the vertical pipe (103).

7. The pneumatic conveying device for a mixed material according to claim 6, characterized in that, A hopper (106) is arranged on the side wall of the vertical pipe (103). The bottom output end of the hopper (106) is matched with the side hole (105). A controller (107) is arranged on the side wall of the hopper (106). A plurality of legs (110) are evenly arranged on the circumferential side surface of the tank body (101). A bottom frame (112) is arranged on the inner walls of the plurality of legs (110). A mounting plate (111) is arranged at the top of the bottom frame (112). The top of the mounting plate (111) is fixedly connected with the bottom of the vertical pipe (103).

8. A pneumatic conveying device for a mixed material according to claim 6, characterized in that The rotating shaft (201) is matched with the axial centers of the inner cavity (102) and the stirring cavity (104). An auger (202) is arranged on the outer surface of the rotating shaft (201). The circumferential side surface of the auger (202) is in contact with the inner wall of the vertical pipe (103). Transmission rods (203) are arranged at the top and bottom of the rotating shaft (201). The outer surface of the transmission rod (203) is rotatably connected with the inner wall of the bearing seat (109).

9. The pneumatic conveying device for a mixed material according to claim 7, characterized in that, An L-shaped rod (204) is arranged on one side of the leg (110). A driving motor (205) is arranged on one side of the L-shaped rod (204). A driving wheel (206) is arranged at the output end of the driving motor (205). The top of the rotating shaft (201) passes through the tank body (101) and a driven wheel (208) is arranged. A belt (207) is connected in a transmission manner on the outer surfaces of the driving wheel (206) and the driven wheel (208). A cross frame (210) is arranged at the top of the leg (110). A protective shell (209) is arranged at the top of the cross frame (210). The driving wheel (206), the belt (207) and the driven wheel (208) are all located inside the protective shell (209).

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