PVC foamed board feeding buffer powder bin mouth and operation method

Abstract

This invention provides a buffered powder hopper opening for PVC foam board feeding and its operation method, belonging to the field of PVC foam board feeding technology. It includes a feeding pipe, a feeding plate cover, and a top dispersing module. One end of the feeding pipe is equipped with a feeding plate cover, and the bottom of the feeding plate cover is equipped with the top dispersing module. Through the top and bottom dispersing modules, this invention enables the device to disperse piled powder into granules, slowing down the descent of the powder. This provides more time for the manufacturing machine to process the powder. Furthermore, because the dispersed powder falls more slowly, it allows for better processing of the powder within the manufacturing machine. This reduces the possibility of products failing to meet production standards and ensures the quality of the manufactured products. It also guarantees the buffering effect of the device on piled powder.

Description

Technical Field

[0001] This invention relates to the field of PVC foam board feeding technology, and in particular to a bufferable powder hopper opening for PVC foam board feeding and its operation method. Background Technology

[0002] A PVC buffered powder hopper opening is a special structural component installed at the bottom of the powder hopper during the feeding stage of PVC foam board production, used to connect to the feeding equipment. Its core function is to balance pressure fluctuations during material feeding by designing a buffer space or buffer device, avoiding feeding abnormalities caused by material accumulation, bridging, or uneven flow rate, and ensuring the stability of subsequent extrusion processes.

[0003] A buffer device for powdered materials disclosed in Chinese invention patent application publication number CN202880505U effectively reduces the impact of material on downstream equipment during unloading and enhances the stability of feeding. Even when the material level in the silo is low, the feeding process has almost no negative impact. This device solves the problem of the impact of powdered material entering the silo on the metering and feeding of downstream equipment from a technological perspective. However, the device lacks a dispersing mechanism, causing the powder to fall in a pile-like manner at a relatively high speed. This fails to provide sufficient time for the manufacturing machines to process the powder. The mixing of processed and unprocessed powder may affect the final production process. The product fails to meet production qualification requirements, which in turn affects the production quality to some extent. The aforementioned device does not have a dedicated connection method with the production machine, which means that the device needs to be connected to the production machine by manual spot welding. However, the existing spot welding has a small welding area, which makes the device prone to detachment after long-term use. The detached device is very likely to separate from the production machine, which may affect normal production and even cause personal injury. At the same time, manual spot welding also increases the factory's production cost to some extent. Therefore, this application provides a bufferable powder hopper opening for PVC foam board feeding and an operation method to meet the needs. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a buffered powder hopper for PVC foam board feeding and its operation method. This solves the problems of the aforementioned devices where powder descends in clumps at high speeds, failing to provide sufficient production time for manufacturing machines. It also addresses the potential mixing of processed and unprocessed powder, leading to products that do not meet production quality standards. Furthermore, the lack of a dedicated connection method for the device to the machine forces manual spot welding, increasing factory production costs. Prolonged use of the welded device may result in separation from the machine, disrupting normal production and potentially causing personal injury.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A buffered powder hopper for PVC foam board feeding includes a feeding pipe, one end of which is provided with a feeding plate cover, the bottom of which is provided with a top dispersing module, the bottom of which is provided with a bottom dispersing module, the bottom of which is provided with a powder-grinding module, and the bottom of which is provided with a welding installation module.

[0009] Preferably, the top disintegration module includes a receiving port, a feeding plate cover is threadedly connected to the receiving port via a receiving port bolt, a top cover plate is fixedly connected to the bottom of the receiving port, a feeding end is provided at the bottom of the top cover plate, a top disintegration box is fixedly connected to the bottom of the top cover plate, a top first rotating shaft hole and a top second rotating shaft hole are sequentially opened on the side of the top disintegration box from front to back, a top first rotating shaft is installed on the inner wall of the top first rotating shaft hole, a top second rotating shaft is installed on the inner wall of the top second rotating shaft hole, a top first rotating rod is installed on the inner wall of the top first rotating shaft, and a top second rotating rod is installed on the inner wall of the top second rotating shaft.

[0010] Preferably, a powder receiving plate is fixedly connected to the surfaces of the top first rotating rod and the top second rotating rod, a top first gear is fixedly connected to one end of the top first rotating rod, a top second gear is provided on the surface of the top first gear, a top third rotating rod is fixedly connected to one end of the top first gear, a top servo motor is provided at one end of the top third rotating rod, a top servo motor base is provided on the lower surface of the top servo motor, a top disintegration box is fixedly connected to one side of the top servo motor base, and a top short rod is fixedly connected to one end of the top second gear.

[0011] Preferably, the bottom disintegration module includes a bottom disintegration box body. The side of the bottom disintegration box body has, from front to back, a first bottom pivot hole, a second bottom pivot hole, a third bottom pivot hole, and a fourth bottom pivot hole. A first bottom pivot is installed on the inner wall of the first bottom pivot hole, a second bottom pivot is installed on the inner wall of the second bottom pivot hole, a third bottom pivot is installed on the inner wall of the third bottom pivot hole, and a fourth bottom pivot is installed on the inner wall of the fourth bottom pivot hole. A disintegration plate is fixedly connected to the surfaces of the first bottom pivot, the second bottom pivot, the third bottom pivot, and the fourth bottom pivot.

[0012] Preferably, one end of the bottom first rotating rod is fixedly connected to a bottom first gear, one end of the bottom first gear is fixedly connected to a bottom first short rod, one end of the bottom first short rod is fixedly connected to a left grooved wheel, one end of the left grooved wheel is fixedly connected to a bottom second short rod, one end of the bottom second short rod is provided with a bottom servo motor, the lower surface of the bottom servo motor is provided with a bottom servo motor base, one side of the bottom servo motor base is fixedly connected to a bottom disassembly box, and the surface of the bottom first gear is provided with a bottom second gear.

[0013] Preferably, one end of the bottom second gear is fixedly connected to the bottom third short rod, a belt is installed on the surface of the left grooved wheel, a right grooved wheel is installed on the left grooved wheel via the belt, one end of the right grooved wheel is fixedly connected to the bottom fourth short rod, one end of the bottom fourth short rod is fixedly connected to the bottom third gear, the surface of the bottom third gear is provided with the bottom fourth gear, and one end of the bottom fourth gear is fixedly connected to the bottom fifth short rod.

[0014] Preferably, the powder grinding module includes a powder grinding box body, the inner wall of the powder grinding box body is fixedly connected with a sliding groove, the inner wall of the sliding groove is provided with a sliding tenon, the top and bottom of the sliding tenon are provided with pulleys, the inner wall of the sliding tenon is provided with a round rolling hole, the inner wall of the round rolling hole is installed with a powder grinding round roller, and the front of the sliding tenon is provided with a push-pull plate.

[0015] Preferably, the push-pull plate is threadedly connected to a sliding tenon via a push-pull plate bolt, a threaded ring is fixedly connected to one side of the push-pull plate, a cylinder is threadedly connected to the inner wall of the threaded ring, a C-shaped plate is fixedly connected to the side of the cylinder, and a powder grinding box body is fixedly connected to the cylinder via the C-shaped plate. A push-pull plate groove is provided on the front of the powder grinding box body, and the push-pull plate groove and the push-pull plate are mutually compatible. A fine mesh screen is fixedly connected to the bottom of the powder grinding box body.

[0016] Preferably, the welding installation module includes a machine connection box, an expansion plate is fixedly connected to the bottom of the machine connection box, a sleeve plate is fixedly connected to the bottom of the expansion plate, a heating welding rod is installed on the inner wall of the sleeve plate, a heating connection line is provided at the bottom of the heating welding rod, and a connecting ring is provided at the bottom of the heating connection line.

[0017] The operating procedure for the PVC foam board feeder with a buffered powder hopper includes the following steps:

[0018] Step 1: The PVC foam board powder is conveyed through the feeding pipe to the feeding plate cover, and finally enters the receiving port of the top dispersing module. Then, the powder falls through the feeding end onto the powder receiving plate on the surface of the top first rotating rod and the top second rotating rod. However, before the feeding process begins, the top servo motor needs to be started. The rotor inside the top servo motor rotates, which in turn drives the top third rotating rod to start rotating. When the top third rotating rod rotates, it drives the top first gear to rotate. The rotation of the top first gear drives the top second gear, which meshes with it, to rotate in the opposite direction. The rotation of the top first gear and the top second gear drives their corresponding top first rotating rod and the top second rotating rod to rotate in the opposite direction. The second rotating rod at the top rotates in the opposite direction, at which point the feeding program is started. After the powder is dropped, it falls in a pile. Because the first and second rotating rods at the top rotate, the powder receiving plates on their surfaces will break up the pile of powder and also catch some of the powder. The caught powder will be slowly sprinkled into the bottom dispersing module. The main function of this module is to initially disperse the pile of powder, breaking up very large lumps of powder into smaller lumps of powder, and slowly sprinkling them into the bottom dispersing module. Breaking up the pile of lumps of powder into smaller lumps of powder can, to some extent, slow down the falling time of the powder. This module acts as an initial buffer to complete the operation.

[0019] Step 2: Before the large clumps of powder are broken into smaller pieces by the top dispersing module and slowly sprinkled into the bottom dispersing box of the bottom dispersing module, the bottom servo motor needs to be activated. The rotor inside the bottom servo motor rotates, which in turn drives the second short rod at the bottom to rotate, thereby driving the left groove wheel and the first short rod at the bottom to rotate. When the left groove wheel rotates, it drives the right groove wheel to rotate via a belt, which in turn drives the fourth short rod at the bottom to rotate. The rotation of the first short rod at the bottom drives the first gear at the bottom to rotate, which in turn drives the second gear at the bottom that meshes with it to rotate. The rotation of the fourth short rod at the bottom drives the third gear at the bottom to rotate, which in turn drives the fourth gear at the bottom that meshes with it to rotate. At this time, the first gear and the second gear at the bottom move in opposite directions, and the third gear and the fourth gear at the bottom move in opposite directions.

[0020] The rotation of the bottom first gear, bottom second gear, bottom third gear, and bottom fourth gear will drive their corresponding bottom first rotating rod, bottom second rotating rod, bottom third rotating rod, and bottom fourth rotating rod to rotate respectively. At this time, the dispersing plate on its surface will also rotate. When small pieces of powder fall into the bottom dispersing box, the small pieces of powder will be further dispersed by the dispersing plate. After being dispersed again in this module, the small pieces of powder will be basically broken into granules. The granular powder will then fall into the powder grinding module. This module disperses the small pieces of powder into granules. Because granular powder is lighter, its falling time is slower, thus better controlling the falling time and giving the PVC foam board making machine enough time to make PVC foam boards. This reduces the amount of powder falling into the machine too early, which would result in low quality PVC foam boards. This module is the second layer of buffer, completing the operation.

[0021] Step 3: The granular powder falls from the bottom dispersing module and enters the powder crushing box. When the granular powder particles are small, they will fall directly through the fine mesh screen. When the granular powder particles are large, they will be separated on the fine mesh screen. At this time, the user needs to start the cylinder. After the cylinder is started, the air rod on the cylinder will be driven to move horizontally. When the air rod on the cylinder drives the push-pull plate to move horizontally, the push-pull plate will pull the sliding tenon to move horizontally back and forth. The pulley on the sliding tenon is set to make the sliding tenon move more smoothly in the slide groove. When the sliding tenon moves in the slide groove, the powder crushing roller will also roll. The rolling of the powder crushing roller will crush the larger granular powder on the fine mesh screen into smaller granular powder, which will then enter the PVC foam board production machine through the fine mesh screen to complete the operation.

[0022] Step 4: When connecting the device to the PVC foam board production machine, the user needs to place the heating electrode inside the sleeve plate, and then place the PVC foam board production machine inside the sleeve plate. The PVC foam board production machine is also placed inside the heating electrode. Once the heating electrode is firmly fixed between the PVC foam board production machine and the sleeve plate, the user clamps the existing welding clamp onto the connecting ring. The welding machine then converts electrical energy into heat, and a large amount of heat enters the heating electrode through the heating connection wire. After being heated, the heating electrode directly welds itself between the sleeve plate and the PVC foam board production machine, thus connecting the device and the PVC foam board production machine, completing the operation.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] In the above scheme, the top and bottom dispersing modules enable the device to break up the piled powder into granules, making the powder fall more slowly. This provides more time for the manufacturing machine to process the powder. At the same time, because the powder falls more slowly after being dispersed, the powder in the manufacturing machine can be processed better. This reduces the possibility that the produced products will not meet the production qualification requirements, and also ensures the quality of the manufactured products. It also ensures the buffering effect of the device on the piled powder.

[0025] By setting up a welding installation module, when the device is connected to the production machine, the contact area between the gunpowder and the machine is larger, resulting in a better connection effect than spot welding. The connection is also safer and less prone to detachment after long-term use. This can ensure the normal operation of production to a certain extent and also protect the personal safety of surrounding personnel. At the same time, the module eliminates the need for manual welding, which also reduces the factory's production costs to some extent.

[0026] In summary, this invention has the advantages of breaking down piled-up powder into fine particles, thereby slowing down the powder's descent speed, providing sufficient processing time for manufacturing machines, ensuring the quality of finished products, and eliminating the need for manual spot welding when connecting the device to the manufacturing machines, thus reducing the factory's production costs for manual spot welding. At the same time, the welding area of ​​the welding gunpowder is larger, and the connection between the device and the machine is more secure, thereby ensuring normal machine production and protecting the personal safety of workers. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the first component of the top dispersing module of the present invention;

[0029] Figure 3 This is a schematic diagram of the second component of the top dispersing module of the present invention;

[0030] Figure 4 This is a schematic diagram of the third component of the top dispersing module of the present invention;

[0031] Figure 5 This is a schematic diagram of the fourth component of the top dispersing module of the present invention;

[0032] Figure 6 This is a schematic diagram of the first component of the bottom disintegration module of the present invention;

[0033] Figure 7 This is a schematic diagram of the second part of the bottom disintegration module of the present invention;

[0034] Figure 8 This is a schematic diagram of the third component of the bottom disintegration module of the present invention;

[0035] Figure 9 for Figure 7 Enlarged schematic diagram of a local structure at point A;

[0036] Figure 10 for Figure 8 Enlarged schematic diagram of the local structure at point B;

[0037] Figure 11 This is a schematic diagram of the powder grinding module of the present invention;

[0038] Figure 12 for Figure 11 Enlarged schematic diagram of a local structure;

[0039] Figure 13 This is a schematic diagram of the welding installation module of the present invention.

[0040] [Figure Labels]

[0041] 1. Feeding pipe; 2. Feeding plate cover; 3. Top dispersing module; 301. Material inlet; 302. Top cover plate; 303. Feeding end; 304. Top dispersing box body; 305. Top first rotating shaft; 306. Top second rotating shaft; 307. Top first rotating rod; 308. Top second rotating rod; 309. Powder receiving plate; 310. Top first gear; 311. Top second gear; 312. Top third rotating rod; 313. Top servo motor; 314. Top servo motor base; 315. Top short rod; 4. Bottom disassembly module; 401. Bottom disassembly box; 402. Bottom first rotating shaft; 403. Bottom second rotating shaft; 404. Bottom third rotating shaft; 405. Bottom fourth rotating shaft; 406. Bottom first rotating rod; 407. Bottom second rotating rod; 408. Bottom third rotating rod; 409. Bottom fourth rotating rod; 410. Disassembly plate; 411. Bottom first gear; 412. Bottom first short rod; 413. Left grooved wheel; 414. Bottom second short rod; 415. Bottom servo motor; 416. Bottom servo motor base; 417. Bottom second gear; 418. Bottom third short rod; 419. Belt; 420. Right grooved wheel; 421. Bottom fourth short rod; 422. Bottom third gear; 423. Bottom fourth gear; 424. Bottom fifth short rod; 5 501. Powder grinding module; 502. Powder grinding box body; 503. Slide groove; 504. Pulley; 505. Powder grinding roller; 506. Push-pull plate; 507. Threaded ring; 508. Cylinder; 509. C-shaped plate; 510. Dense mesh screen; 6. Welding installation module; 601. Machine connection box body; 602. Expansion plate; 603. Sleeve plate; 604. Heating welding rod; 605. Heating connection wire; 606. Connecting ring.

[0042] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0043] The following describes in detail, with reference to the accompanying drawings and specific embodiments, a bufferable powder hopper for PVC foam board feeding and its operation method provided by the present invention. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0044] Implement column 1, such as Figure 1 As shown, an embodiment of the present invention provides a bufferable powder hopper for feeding PVC foam board, including a feeding pipe 1, a feeding plate cover 2 at one end of the feeding pipe 1, a top dispersing module 3 at the bottom of the feeding plate cover 2, a bottom dispersing module 4 at the bottom of the top dispersing module 3, a powder-grinding module 5 at the bottom of the bottom dispersing module 4, and a welding installation module 6 at the bottom of the powder-grinding module 5.

[0045] The feeding pipe 1 is welded to the top of the feeding plate cover 2. The assembled feeding plate cover 2 is installed on the top of the top dispersing module 3, while the bottom dispersing module 4 is welded to the bottom of the top dispersing module 3. The powder grinding module 5 is welded to the bottom of the bottom dispersing module 4. The welding and mounting module 6 is welded to the bottom of the powder grinding module 5, thus completing the assembly.

[0046] In operation, the powder enters the top dispersing module 3 through the feeding pipe 1 and the feeding plate cover 2. After entering the top dispersing module 3, the large clumps of powder are initially dispersed, breaking them down into smaller pieces. This is the initial buffer. The smaller pieces of powder then enter the bottom dispersing module 4, where they are further dispersed into granules. The granules are lightweight and fall slowly, allowing more time for the production machine. This is the second buffer. After the granules fall, the smaller granules fall from the grinding module 5, while the larger granules remain on the grinding module 5. After being ground and crushed by the grinding module 5, they become smaller granules and fall from the grinding module 5 as well, eventually all of which fall into the production machine, completing the operation.

[0047] Implement column 2, such as Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the top dispersing module 3 includes a receiving port 301. The receiving port 301 is threadedly connected to a feeding plate cover 2 via a receiving port bolt. A top cover plate 302 is fixedly connected to the bottom of the receiving port 301. A feeding end 303 is provided at the bottom of the top cover plate 302. A top dispersing box body 304 is fixedly connected to the bottom of the top cover plate 302. A top first rotating shaft hole and a top second rotating shaft hole are sequentially opened on the side of the top dispersing box body 304 from front to back. A top first rotating shaft 305 is installed on the inner wall of the top first rotating shaft hole, and a top second rotating shaft 306 is installed on the inner wall of the top second rotating shaft hole. A top first rotating rod 307 is installed on the inner wall of the top first rotating shaft 305, and a top second rotating rod 308 is installed on the inner wall of the top second rotating shaft 306.

[0048] A powder receiving plate 309 is fixedly connected to the surface of the top first rotating rod 307 and the top second rotating rod 308. A top first gear 310 is fixedly connected to one end of the top first rotating rod 307. A top second gear 311 is provided on the surface of the top first gear 310. A top third rotating rod 312 is fixedly connected to one end of the top first gear 310. A top servo motor 313 is provided at one end of the top third rotating rod 312. A top servo motor base 314 is provided on the lower surface of the top servo motor 313. A top disintegration box 304 is fixedly connected to one side of the top servo motor base 314. A top short rod 315 is fixedly connected to one end of the top second gear 311.

[0049] Weld the receiving port 301 to the top of the top cover plate 302, weld the feeding end 303 to the bottom of the top cover plate 302, install the assembled feeding plate cover 2 to the top of the receiving port 301 using the receiving port bolts, weld the top cover plate 302 to the top of the top disassembly box 304, install the top first rotating shaft 305 and the top second rotating shaft 306 into the top first rotating shaft hole and the top second rotating shaft hole of the top disassembly box 304, and install the top first rotating rod 307 and the top second rotating rod 308 onto the top first rotating shaft 304. 5 and the top second rotating shaft 306 are inside, while the powder receiving plate 309 is welded to the surface of the top first rotating rod 307 and the top second rotating rod 308. The top first gear 310 and the top second gear 311 are welded to the top first rotating rod 307 and the top second rotating rod 308 respectively. After the top first gear 310 and the top second gear 311 are welded to the top first rotating rod 307 and the top second rotating rod 308, the top first gear 310 and the top second gear 311 are inside the top disintegration box 304.

[0050] The top third rotating rod 312 is welded to the top first gear 310, and the top servo motor base 314 is welded to the top disassembled box 304. The top servo motor 313 is installed on the top third rotating rod 312. At this time, the top servo motor 313 is located on the ground of the top servo motor base 314. The top short rod 315 is welded to the top second gear 311. The top third rotating rod 312 and the top short rod 315 are respectively adapted to the top first rotating shaft 305 and the top second rotating shaft 306 to complete the assembly.

[0051] The PVC foam board powder is conveyed through the feeding pipe 1 to the feeding plate cover 2, and finally enters the receiving port 301 of the top dispersing module 3. Then, the powder falls through the feeding end 303 onto the powder receiving plate 309 on the surface of the top first rotating rod 307 and the top second rotating rod 308. However, before the feeding process begins, the top servo motor 313 needs to be started. The rotor inside the top servo motor 313 rotates, which in turn drives the top third rotating rod 312 to start rotating. When the top third rotating rod 312 rotates, it drives the top first gear 310 to rotate. The rotation of the top first gear 310 will drive the top second gear 311, which meshes with it, to rotate in the opposite direction. The rotation of the top first gear 310 and the top second gear 311 will cause... The corresponding top first rotating rod 307 and top second rotating rod 308 are rotated in opposite directions, and the feeding program is started. After the powder is dropped, it falls in a pile. Because the top first rotating rod 307 and top second rotating rod 308 are rotating, the powder receiving plate 309 on their surface will break up the pile of powder and also receive some of the powder. The received powder will be slowly sprinkled into the bottom dispersing module 4. The main function of this module is to initially disperse the pile of powder, breaking up the very large lumps of powder into smaller lumps of powder, and slowly sprinkling them into the bottom dispersing module 4. Breaking up the pile of lumps of powder into smaller lumps of powder can delay the falling time of the powder to a certain extent. This module acts as an initial buffer to complete the operation.

[0052] The bottom disassembly module 4 includes a bottom disassembly box 401. From front to back, the sides of the bottom disassembly box 401 are sequentially provided with a first bottom pivot hole, a second bottom pivot hole, a third bottom pivot hole, and a fourth bottom pivot hole. A first bottom pivot 402 is installed on the inner wall of the first bottom pivot hole, a second bottom pivot 403 is installed on the inner wall of the second bottom pivot hole, a third bottom pivot 404 is installed on the inner wall of the third bottom pivot hole, and a fourth bottom pivot 405 is installed on the inner wall of the fourth bottom pivot hole. Shaft 405, bottom first rotating rod 406 is installed on the inner wall of bottom first rotating shaft 402, bottom second rotating rod 407 is installed on the inner wall of bottom second rotating shaft 403, bottom third rotating rod 408 is installed on the inner wall of bottom third rotating shaft 404, bottom fourth rotating rod 409 is installed on the inner wall of bottom fourth rotating shaft 405, and a disintegration plate 410 is fixedly connected to the surface of bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408 and bottom fourth rotating rod 409.

[0053] One end of the bottom first rotating rod 406 is fixedly connected to the bottom first gear 411, one end of the bottom first gear 411 is fixedly connected to the bottom first short rod 412, one end of the bottom first short rod 412 is fixedly connected to the left grooved wheel 413, one end of the left grooved wheel 413 is fixedly connected to the bottom second short rod 414, one end of the bottom second short rod 414 is provided with a bottom servo motor 415, the lower surface of the bottom servo motor 415 is provided with a bottom servo motor base 416, one side of the bottom servo motor base 416 is fixedly connected to the bottom disassembly box 401, and the surface of the bottom first gear 411 is provided with a bottom second gear 417.

[0054] One end of the bottom second gear 417 is fixedly connected to the bottom third short rod 418. A belt 419 is installed on the surface of the left grooved wheel 413. The left grooved wheel 413 is connected to the right grooved wheel 420 via the belt 419. One end of the right grooved wheel 420 is fixedly connected to the bottom fourth short rod 421. One end of the bottom fourth short rod 421 is fixedly connected to the bottom third gear 422. The surface of the bottom third gear 422 is provided with the bottom fourth gear 423. One end of the bottom fourth gear 423 is fixedly connected to the bottom fifth short rod 424.

[0055] The bottom disassembly box 401 is welded to the bottom of the top disassembly box 304 of the top disassembly module 3. The bottom first rotating shaft 402, bottom second rotating shaft 403, bottom third rotating shaft 404, and bottom fourth rotating shaft 405 are respectively installed into the bottom first rotating shaft hole, bottom second rotating shaft hole, bottom third rotating shaft hole, and bottom fourth rotating shaft hole of the bottom disassembly box 401. The bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408, and bottom fourth rotating rod 409 are respectively installed into the bottom first rotating shaft 402, bottom second rotating shaft 403, bottom third rotating shaft 404, and bottom... Inside the fourth rotating shaft 405, the disintegration plate 410 is welded to the surface of the bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408 and bottom fourth rotating rod 409. The bottom first gear 411, bottom second gear 417, bottom third gear 422 and bottom fourth gear 423 are respectively welded to the bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408 and bottom fourth rotating rod 409. The bottom first gear 411 and bottom second gear 417 mesh with each other, and the bottom third gear 422 and bottom fourth gear 423 mesh with each other.

[0056] Weld the first short rod 412 at the bottom to the first rotating rod 406 at the bottom, and weld the left grooved wheel 413 between the first short rod 412 and the second short rod 414 at the bottom. Weld the third short rod 418 at the bottom to the second gear 417 at the bottom. Weld the fourth short rod 421 at the bottom between the third gear 422 and the right grooved wheel 420 at the bottom. Weld the fifth short rod 424 at the bottom to the fourth gear 423 at the bottom. Fit the belt 419 between the left grooved wheel 413 and the right grooved wheel 420. Weld the bottom servo motor base 416 to the bottom disassembly box 401. The bottom servo motor 415 is installed on the bottom second short rod 414. At this moment, the bottom servo motor 415 sits on the bottom servo motor base 416. The bottom first gear 411, bottom second gear 417, bottom third gear 422 and bottom fourth gear 423 are installed inside the bottom disassembled box 401. The bottom first short rod 412, bottom third short rod 418, bottom fourth short rod 421 and bottom fifth short rod 424 are respectively adapted to the bottom first rotating shaft 402, bottom second rotating shaft 403, bottom third rotating shaft 404 and bottom fourth rotating shaft 405 to complete the assembly.

[0057] Before the large clumps of powder are broken into smaller pieces by the top dispersing module 3 and slowly sprinkled into the bottom dispersing box 401 of the bottom dispersing module 4, the bottom servo motor 415 needs to be activated. The rotor inside the bottom servo motor 415 rotates, which in turn drives the bottom second short rod 414 to rotate, thereby driving the left grooved wheel 413 and the bottom first short rod 412 to rotate. When the left grooved wheel 413 rotates, it drives the right grooved wheel 420 to rotate via the belt 419, which in turn drives the bottom fourth short rod 412 to rotate. When rod 421 rotates, the first short rod 412 at the bottom rotates, which in turn drives the first gear 411 at the bottom to rotate. The rotation of the first gear 411 at the bottom drives the second gear 417 at the bottom, which meshes with it, to rotate. The rotation of the fourth short rod 421 at the bottom drives the third gear 422 at the bottom to rotate. The rotation of the third gear 422 at the bottom drives the fourth gear 423 at the bottom, which meshes with it, to rotate. At this time, the first gear 411 at the bottom and the second gear 417 at the bottom move in opposite directions, and the third gear 422 at the bottom and the fourth gear 423 at the bottom move in opposite directions.

[0058] The rotation of the bottom first gear 411, bottom second gear 417, bottom third gear 422, and bottom fourth gear 423 will respectively drive the corresponding bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408, and bottom fourth rotating rod 409 to rotate. At this time, the dispersing plate 410 on its surface will also rotate. When small pieces of powder fall into the bottom dispersing box 401, the small pieces of powder will be further dispersed by the dispersing plate 410. The small pieces of powder will be dispersed in the mold. After being broken down again, the powder will be basically broken into granules. The granular powder will then fall into the powder-dispersing module 5. This module breaks down the small pieces of powder into granules. Because the granular powder is lighter, its falling time is slower, thus better controlling the falling time. This allows enough time for the PVC foam board making machine to produce PVC foam boards, reducing the amount of powder falling into the machine too early, which would result in poor quality PVC foam boards. This module is the second layer of buffer to complete the operation.

[0059] By using the top dispersing module 3 and the bottom dispersing module 4, the device can break up piled-up powder into granules, making the powder fall more slowly. This provides more time for the manufacturing machine to process the powder. At the same time, because the powder falls more slowly after being dispersed, the powder in the manufacturing machine can be processed better. This reduces the possibility that the produced products will not meet the production qualification requirements, and also ensures the quality of the manufactured products. It also ensures the buffering effect of the device on the piled-up powder.

[0060] Implement column 3, such as Figure 5As shown, in this embodiment, the powder grinding module 5 includes a powder grinding box body 501. A slide groove 502 is fixedly connected to the inner wall of the powder grinding box body 501. A sliding tenon 503 is provided on the inner wall of the slide groove 502. A pulley 504 is provided at the top and bottom of the sliding tenon 503. A round rolling hole is opened on the inner wall of the sliding tenon 503. A powder grinding round roller 505 is installed on the inner wall of the round rolling hole. A push-pull plate 506 is provided on the front of the sliding tenon 503.

[0061] A sliding plate 506 is connected to a sliding tenon 503 by a sliding plate bolt thread. A threaded ring 507 is fixedly connected to one side of the sliding plate 506. A cylinder 508 is threadedly connected to the inner wall of the threaded ring 507. A C-shaped plate 509 is fixedly connected to the side of the cylinder 508. A powder grinding box body 501 is fixedly connected to the cylinder 508 through the C-shaped plate 509. A sliding plate groove is opened on the front of the powder grinding box body 501. The sliding plate groove and the sliding plate 506 are mutually adapted. A fine mesh screen 510 is fixedly connected to the bottom of the powder grinding box body 501.

[0062] The powder grinding box body 501 is welded to the bottom of the bottom dispersing box body 401 of the bottom dispersing module 4. The sliding tenon 503 is slid into the sliding groove 502. The push-pull plate 506 passes through the push-pull plate groove of the powder grinding box body 501 and is then installed onto the sliding tenon 503 by the push-pull plate bolts. The pulley 504 is integrally connected with the sliding tenon 503. The powder grinding roller 505 is installed into the roller hole of the sliding tenon 503. The threaded ring 507 is welded to the push-pull plate 506. Before the cylinder 508 and the C-shaped plate 509 are welded together, the cylinder 508 is first screwed onto the threaded ring 507. After the cylinder 508 is fixed on the threaded ring 507, the C-shaped plate 509 is then welded between the cylinder 508 and the powder grinding box body 501 using welding technology. The dense mesh screen 510 is welded to the bottom of the powder grinding box body 501, completing the assembly.

[0063] The granular powder falls from the bottom dispersing module 4 into the powder collection box 501. When the granular powder particles are small, they fall directly through the fine mesh screen 510. When the granular powder particles are large, they are trapped on the fine mesh screen 510. At this point, the user needs to activate the cylinder 508. After the cylinder 508 is activated, the air rod on the cylinder 508 is driven to move horizontally. When the air rod on the cylinder 508 drives the push-pull plate 506 to also move horizontally, the push-pull plate... When 506 makes a horizontal movement, it will pull the sliding tenon 503 to make a back-and-forth horizontal movement. The pulley 504 is set on the sliding tenon 503 to make the sliding tenon 503 move more smoothly in the slide groove 502. When the sliding tenon 503 moves in the slide groove 502, the powder crushing roller 505 will also roll. The rolling of the powder crushing roller 505 will crush the larger granular powder on the dense mesh screen 510 into smaller granular powder, and then enter the PVC foam board production machine through the dense mesh screen 510 to complete the operation.

[0064] Implement column 4, such as Figure 6 As shown, in this embodiment, the welding installation module 6 includes a machine connection box 601. An expansion plate 602 is fixedly connected to the bottom of the machine connection box 601. A sleeve plate 603 is fixedly connected to the bottom of the expansion plate 602. A heating welding rod 604 is installed on the inner wall of the sleeve plate 603. A heating connection line 605 is provided at the bottom of the heating welding rod 604. A connecting ring 606 is provided at the bottom of the heating connection line 605.

[0065] The machine connection box 601 is welded to the bottom of the powder grinding box 501 of the powder grinding module 5. The expansion plate 602 is welded to the bottom of the machine connection box 601. The sleeve plate 603 is welded to the bottom of the expansion plate 602. The heating electrode 604 is placed between the sleeve plate 603 and the manufacturing machine. The heating connection line 605 is integrally connected with the heating electrode 604. The connecting ring 606 is integrally connected with the heating connection line 605, thus completing the assembly.

[0066] When connecting the device to a PVC foam board production machine, the user places the heating electrode 604 inside the inner wall of the sleeve 603, then places the PVC foam board production machine inside the sleeve 603. The PVC foam board production machine is also placed inside the heating electrode 604. Once the heating electrode 604 is firmly fixed between the PVC foam board production machine and the sleeve 603, the user clamps the existing welding clamp onto the connecting ring 606. The welding machine then converts electrical energy into heat, and a large amount of heat enters the heating electrode 604 through the heating connection line 605. After being heated, the heating electrode 604 is directly welded between the sleeve 603 and the PVC foam board production machine, thus connecting the device to the PVC foam board production machine and completing the operation.

[0067] By setting up the welding installation module 6, when the device is connected to the production machine, the contact area between the gunpowder and the two is larger, the connection effect is better than that of spot welding, the connection is safer, and it is not easy to detach after long-term use. This can ensure the normal operation of production to a certain extent, and also protect the personal safety of the surrounding personnel. At the same time, the module does not require manual welding, which also reduces the production cost of the factory to a certain extent.

[0068] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0069] An operating method for a PVC foam board feeder with a buffered powder hopper includes the following steps:

[0070] Step 1: The PVC foam board powder is conveyed through the feeding pipe 1 to the feeding plate cover 2, and finally enters the receiving port 301 of the top dispersing module 3. Then, the powder falls through the feeding end 303 onto the powder receiving plate 309 on the surface of the top first rotating rod 307 and the top second rotating rod 308. However, before the feeding process begins, the top servo motor 313 needs to be started. The rotor inside the top servo motor 313 rotates, which in turn drives the top third rotating rod 312 to start rotating. When the top third rotating rod 312 rotates, it drives the top first gear 310 to rotate. The rotation of the top first gear 310 will drive the top second gear 311, which meshes with it, to rotate in the opposite direction. The rotation of the top first gear 310 and the top second gear 311... This will cause the corresponding top first rotating rod 307 and top second rotating rod 308 to rotate in opposite directions. At this time, the feeding program is started. After the powder is dropped, it falls in a pile. Because the top first rotating rod 307 and top second rotating rod 308 rotate, the powder receiving plate 309 on their surface will break up the pile of powder and also receive some of the powder. The received powder will be slowly sprinkled into the bottom dispersing module 4. The main function of this module is to initially disperse the pile of powder, break up the very large lumps of powder into smaller lumps of powder, and slowly sprinkle them into the bottom dispersing module 4. Breaking up the pile of lumps of powder into smaller lumps of powder can delay the falling time of the powder to a certain extent. This module acts as an initial buffer to complete the operation.

[0071] Step 2: Before the large clumps of powder are broken into smaller pieces by the top dispersing module 3 and slowly sprinkled into the bottom dispersing box 401 of the bottom dispersing module 4, the bottom servo motor 415 needs to be activated. The rotor inside the bottom servo motor 415 rotates, which in turn drives the bottom second short rod 414 to rotate, thereby driving the left grooved wheel 413 and the bottom first short rod 412 to rotate. When the left grooved wheel 413 rotates, it drives the right grooved wheel 420 to rotate via the belt 419, which in turn drives the bottom first short rod 412 to rotate. When the four short rods 421 rotate, the first short rod 412 at the bottom rotates, which in turn drives the first gear 411 at the bottom to rotate. The rotation of the first gear 411 at the bottom drives the second gear 417 at the bottom, which meshes with it, to rotate. The rotation of the fourth short rod 421 at the bottom drives the third gear 422 at the bottom to rotate. The rotation of the third gear 422 at the bottom drives the fourth gear 423 at the bottom, which meshes with it, to rotate. At this time, the first gear 411 at the bottom and the second gear 417 at the bottom move in opposite directions, and the third gear 422 at the bottom and the fourth gear 423 at the bottom move in opposite directions.

[0072] The rotation of the bottom first gear 411, bottom second gear 417, bottom third gear 422, and bottom fourth gear 423 will respectively drive the corresponding bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408, and bottom fourth rotating rod 409 to rotate. At this time, the dispersing plate 410 on its surface will also rotate. When small pieces of powder fall into the bottom dispersing box 401, the small pieces of powder will be further dispersed by the dispersing plate 410. The small pieces of powder will be dispersed in the mold. After being broken down again, the powder will be basically broken into granules. The granules will fall into the powder-dissolving module 5. This module breaks down the small pieces of powder into granules. Because the granules are lighter, they fall more slowly, thus better controlling the falling time. This allows enough time for the PVC foam board making machine to make PVC foam boards, reducing the amount of powder falling into the machine too early, which would result in poor quality PVC foam boards. This module is the second layer of buffer to complete the operation.

[0073] Step 3: The granular powder falls from the bottom dispersing module 4 into the powder collection box 501. When the granular powder particles are small, they will fall directly through the fine mesh screen 510. When the granular powder particles are large, they will be separated on the fine mesh screen 510. At this time, the user needs to start the cylinder 508. After the cylinder 508 is started, the air rod on the cylinder 508 will be driven to move horizontally. When the air rod on the cylinder 508 drives the push-pull plate 506 to also move horizontally, pushing... When the pull plate 506 makes a horizontal movement, it will pull the sliding tenon 503 to make a back-and-forth horizontal movement. The pulley 504 is set on the sliding tenon 503 to make the sliding tenon 503 move more smoothly in the slide groove 502. When the sliding tenon 503 moves in the slide groove 502, the powder crushing roller 505 will also roll. The rolling of the powder crushing roller 505 will crush the larger granular powder on the dense mesh screen 510 into smaller granular powder, and then enter the PVC foam board production machine through the dense mesh screen 510 to complete the operation.

[0074] Step 4: When connecting the device to the PVC foam board production machine, the user needs to place the heating welding rod 604 inside the inner wall of the sleeve plate 603, and then place the PVC foam board production machine inside the sleeve plate 603. The PVC foam board production machine is also placed inside the heating welding rod 604. When the heating welding rod 604 is firmly fixed between the PVC foam board production machine and the sleeve plate 603, the user clamps the existing welding clamp onto the connecting ring 606. The welding machine then converts electrical energy into heat, and a large amount of heat enters the heating welding rod 604 through the heating connecting wire 605. After being heated, the heating welding rod 604 will directly weld itself between the sleeve plate 603 and the PVC foam board production machine, thus connecting the device and the PVC foam board production machine, completing the operation.

[0075] The technical solution provided by this invention: PVC foam board powder is conveyed through feeding pipe 1 to feeding plate cover 2, and finally enters the receiving port 301 of the top dispersing module 3. Then, the powder falls through feeding end 303 onto the powder receiving plate 309 on the surface of the top first rotating rod 307 and the top second rotating rod 308. However, before the feeding process, the top servo motor 313 needs to be started. The rotor inside the top servo motor 313 rotates, which in turn drives the top third rotating rod 312 to start rotating. When the top third rotating rod 312 rotates, it drives the top first gear 310 to rotate. The rotation of the top first gear 310 will drive the top second gear 311, which meshes with it, to rotate in the opposite direction. The top first gear 310 and the top second gear 311... The rotation of gear 311 drives its corresponding top first rotating rod 307 and top second rotating rod 308 to rotate in opposite directions. At this time, the feeding program is started. After the powder is dropped, it falls in a pile. Because the top first rotating rod 307 and top second rotating rod 308 rotate, the powder receiving plate 309 on their surface will break up the pile of powder and also receive some of the powder. The received powder will be slowly sprinkled into the bottom dispersing module 4. The main function of this module is to initially disperse the pile of powder, breaking up very large lumps of powder into smaller lumps of powder, and slowly sprinkling them into the bottom dispersing module 4. Breaking up the pile of lumps of powder into smaller lumps of powder can, to a certain extent, slow down the falling time of the powder. Before the powder is broken into small pieces by the top dispersing module 3 and slowly sprinkled into the bottom dispersing box 401 of the bottom dispersing module 4, the bottom servo motor 415 needs to be activated. The rotor inside the bottom servo motor 415 rotates, which in turn drives the bottom second short rod 414 to rotate, thereby driving the left grooved wheel 413 and the bottom first short rod 412 to rotate. When the left grooved wheel 413 rotates, it drives the right grooved wheel 420 to rotate via the belt 419, which in turn drives the bottom fourth short rod 421 to rotate. The rotation of the bottom first short rod 412 drives the bottom first gear 411 to rotate, which in turn drives the bottom second gear 417 meshing with it to rotate. The rotation of the four short rods 421 will drive the bottom third gear 422 to rotate, and the rotation of the bottom third gear 422 will drive the bottom fourth gear 423 to rotate. At this time, the bottom first gear 411 and the bottom second gear 417 move in opposite directions, and the bottom third gear 422 and the bottom fourth gear 423 move in opposite directions. The rotation of the bottom first gear 411, bottom second gear 417, bottom third gear 422 and bottom fourth gear 423 will respectively drive the corresponding bottom first rotating rod 406, bottom second rotating rod 407, bottom third rotating rod 408 and bottom fourth rotating rod 409 to rotate. At this time, the dispersing plate 410 on its surface will also rotate. At this time, the small pieces of powder fall into the bottom dispersing box 401.Small pieces of powder are further broken down by the dispersing plate 410. After being further broken down in this module, the powder is essentially reduced to granules. These granules then fall into the powder-collecting module 5, which breaks down the small pieces of powder into granules. Because granules are lighter, their falling time is slower, allowing for better control of the falling time and providing sufficient time for the PVC foam board manufacturing machine to produce the PVC foam boards. This reduces the amount of powder falling into the machine prematurely, which could result in low-quality PVC foam boards. The granular powder falls from the bottom dispersing module 4. The powder enters the powder collection box 501. When the granular powder particles are small, they fall directly through the fine mesh screen 510. When the granular powder particles are large, they are trapped on the fine mesh screen 510. At this point, the user needs to activate the cylinder 508. After activation, the air rod on the cylinder 508 is driven to move horizontally. When the air rod on the cylinder 508 drives the push-pull plate 506 to move horizontally, the push-pull plate 506 pulls the sliding tenon 503 to move horizontally back and forth. The pulley 504 on the sliding tenon 503 is for the sliding tenon 503 to... The movement within the chute 502 is smoother. As the sliding tenon 503 moves within the chute 502, the powder-crushing roller 505 also rolls. This rolling of the powder-crushing roller 505 crushes the larger granular powder particles on the fine-mesh screen 510 into smaller granular powder particles, which then pass through the fine-mesh screen 510 into the PVC foam board production machine. When connecting this device to the PVC foam board production machine, the user needs to place the heating electrode 604 inside the sleeve plate 603, and then place the PVC foam board production machine inside the sleeve plate 603. At this point, the PVC foaming... The board production machine is also placed inside the heating welding rod 604. When the heating welding rod 604 is firmly fixed between the PVC foam board production machine and the sleeve 603, the user clamps the existing welding clamp onto the connecting ring 606. The welding machine then converts electrical energy into heat, and a large amount of this heat enters the heating welding rod 604 through the heating connection wire 605. After being heated, the heating welding rod 604 directly welds itself between the sleeve 603 and the PVC foam board production machine, thus connecting the device to the PVC foam board production machine.

[0076] Supplementary explanation of the evaluation criteria and specific methods for the dispersing effect:

[0077] Evaluation criteria:

[0078] Particle size distribution: This is the most intuitive standard for evaluating the dispersing effect. Methods such as sieving analysis or laser particle size analyzers can be used to measure the particle size distribution curve of the powder, thereby understanding information such as the particle size range, average particle size, and uniformity of particle size distribution.

[0079] Bulk density: The bulk density of the dispersed powder reflects its flowability. The lower the bulk density, the better the flowability of the powder, and the easier it is for subsequent equipment to process it evenly.

[0080] Flowability: The flowability of powder can be evaluated using indicators such as the flow angle and the angle of repose. The smaller the flow angle and the smaller the angle of repose, the better the flowability of the powder.

[0081] Bridging phenomenon: Observe whether the powder is prone to bridging after being dispersed, that is, whether the powder is prone to forming an arch structure when it is piled up, which affects the flowability of the powder;

[0082] Evaluation methods:

[0083] Sieving analysis: The dispersed powder is screened through a series of standard sieves, and the powder mass on each sieve is counted to obtain the particle size distribution curve of the powder.

[0084] Laser particle size analyzer: By irradiating powder with a laser beam and analyzing the optical signals of laser scattering or diffraction, the particle size distribution information of the powder can be obtained.

[0085] Bulk density measurement: A certain amount of powder is placed in a graduated cylinder, and the volume and mass of the powder are measured to calculate the bulk density.

[0086] Flowability test: The flow angle or repose angle of the powder can be measured using equipment such as a flow angle tester or an angle of repose tester.

[0087] Observation of bridging phenomenon: Pile the dispersed powder in an inclined container and observe whether the powder easily forms an arch structure;

[0088] Data analysis and conclusions:

[0089] Based on the collected data, statistical analysis is performed, and the results are compared with those of undisturbed powder to draw conclusions on the effectiveness of the dispersing module. For example, it can be analyzed whether the particle size distribution of the dispersed powder is more uniform, whether the bulk density is reduced, whether the flowability is improved, and whether bridging is reduced.

[0090] Recommended experimental protocol:

[0091] Set up a control group: When conducting experiments, it is recommended to set up a control group with undissolved powder for comparative analysis;

[0092] Choose appropriate experimental equipment: Select appropriate experimental equipment according to your needs, such as sieving analysis equipment, laser particle size analyzer, flow angle tester, etc.

[0093] Controlling experimental conditions: When conducting experiments, it is necessary to control experimental conditions, such as the type of powder, moisture content, and experimental environment, to ensure the reliability of experimental results.

[0094] Conduct multiple experiments: To obtain more reliable data, it is recommended to conduct multiple experiments and calculate the average value.

[0095] Buffering effectiveness evaluation method:

[0096] Powder flow rate fluctuation: The buffering effect can be evaluated by measuring the change in powder flow rate over time. For example, the fluctuation range of powder flow rate at different time points can be measured; the smaller the fluctuation range, the better the buffering effect.

[0097] Equipment load changes: The buffering effect can be evaluated by measuring the load changes of production equipment. For example, the changes in parameters such as equipment power and current over time can be measured; the smaller the change, the better the buffering effect.

[0098] Product quality stability: The buffering effect can be evaluated by measuring the stability of product quality; for example, the fluctuation range of parameters such as product thickness, density, and bubble content can be measured. The smaller the fluctuation range, the better the buffering effect.

[0099] Impact on production equipment:

[0100] Extending equipment lifespan: By buffering the impact of powder, wear and damage to production equipment can be reduced, thereby extending the equipment's lifespan;

[0101] Improve equipment operational stability: By stabilizing the flow rate of powder, the operational stability of production equipment can be improved, reducing equipment failures and downtime.

[0102] Reduced energy consumption: By optimizing the powder conveying process, the energy consumption of the equipment can be reduced, thereby reducing production costs;

[0103] Improvement of product quality:

[0104] Improve product quality stability: By buffering the impact of powder and flow fluctuations, the stability of product quality can be improved, product defects can be reduced, and the product qualification rate can be increased;

[0105] Improve product consistency: By optimizing the powder conveying process, product consistency can be improved and the range of fluctuations in product performance can be reduced;

[0106] Improving product appearance quality: By optimizing the powder conveying process, product surface defects can be reduced, thereby improving product appearance quality.

[0107] Regarding the quantitative explanation of the slowdown in the falling speed of the powder, the following experimental data and theoretical analysis are provided:

[0108] Supplementary Experimental Data

[0109] Falling speed comparison test (tabular format)

[0110] Test conditions Falling speed (m / s) Speed ​​reduction rate (%) Test methods Undispersed raw powder 1.25±0.15 - High-speed camera tracking method After the first level is broken 0.85±0.08 32% Laser velocimeter After the second stage of disintegration 0.62±0.05 50% Photoelectric sensor array

[0111] Typical operating condition test data: When the powder moisture content is 5%, the three-stage dispersing can reduce the falling speed from 1.2m / s to 0.55m / s (a reduction of 54%). At a feed rate of 50kg / h, the dispersing module extends the falling time from 3.2 seconds to 7.8 seconds.

[0112] Theoretical Analysis Supplement

[0113] Fluid dynamics model: Establish the equation of motion for powder particles under the action of the dispersing plate: F=ma=mg-½ρv²CdA;

[0114] Where: F - force on the particle; m - particle mass; g - gravitational acceleration; ρ - air density; v - falling velocity; Cd - drag coefficient; A - frontal area;

[0115] Discrete element simulation results:

[0116] Simulations show that the average falling velocity of the original powder agglomerates is 1.3 m / s; after collision with the dispersing plate, the velocity vector dispersion is 0.4-0.9 m / s; and the energy loss from particle collisions is approximately 35%.

[0117] Analysis of influencing factors

[0118] The degree of influence of key parameters:

[0119] Disintegration plate rotation speed (main factor, contribution rate 42%);

[0120] Moisture content of powder (minor factor, contribution rate 28%)

[0121] Processing volume (third factor, contributing 18%)

[0122] Optimization suggestions: When the speed is increased from 30 rpm to 50 rpm, the falling speed can be reduced by another 22%; controlling the moisture content at 4-6% will achieve the best deceleration effect;

[0123] Detailed description of experimental methods

[0124] Schematic diagram of the testing device:

[0125] [Powder hopper] → [Speed ​​measurement area] → [Collection device]

[0126] The measurement area is equipped with:

[0127] High-speed camera (1000fps); laser rangefinder; weighing sensor

[0128] Test standard: Refer to GB / T 16913-2008 Test method for dust physical properties; repeat the test 5 times for each working condition and take the average value.

[0129] Ambient temperature controlled at 25±2℃;

[0130] Implementation Cases

[0131] Actual test data from a PVC foam board production line: Without this device: there were 3-5 feeding fluctuations per hour; after using it: the feeding fluctuations decreased to 0.2 times / hour; the product thickness deviation improved from ±0.3mm to ±0.1mm.

[0132] The corresponding test principle explanation and data analysis method fully demonstrate the effectiveness of the scattering module in controlling the falling speed.

[0133] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0134] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A PVC foam board feeder with a buffered powder hopper opening, characterized in that, The system includes a feeding pipe (1), one end of which is provided with a feeding plate cover (2), the bottom of which is provided with a top dispersing module (3), the bottom of which is provided with a bottom dispersing module (4), the bottom of which is provided with a powder grinding module (5), and the bottom of which is provided with a welding installation module (6); the welding installation module (6) includes a machine connection box (601), the bottom of which is fixedly connected with an extension plate (602), the bottom of which is fixedly connected with a sleeve plate (603), the inner wall of which is installed with a heating welding rod (604), the bottom of which is provided with a heating connecting line (605), and the bottom of which is provided with a connecting ring (606); the PVC foam board production machine is placed inside the heating welding rod (604).

2. The PVC foam board feeder with buffered powder hopper according to claim 1, characterized in that, The top dispersing module (3) includes a receiving port (301), which is connected to a feeding plate cover (2) by a receiving port bolt. A top cover plate (302) is fixedly connected to the bottom of the receiving port (301). A feeding end (303) is provided at the bottom of the top cover plate (302). A top dispersing box body (304) is fixedly connected to the bottom of the top cover plate (302). A top first rotating shaft hole and a top second rotating shaft hole are opened sequentially from front to back on the side of the top dispersing box body (304). A top first rotating shaft (305) is installed on the inner wall of the top first rotating shaft hole. A top second rotating shaft (306) is installed on the inner wall of the top second rotating shaft hole. A top first rotating rod (307) is installed on the inner wall of the top first rotating shaft (305). A top second rotating rod (308) is installed on the inner wall of the top second rotating shaft (306).

3. The PVC foam board feeder with buffered powder hopper according to claim 2, characterized in that, A powder receiving plate (309) is fixedly connected to the surface of the top first rotating rod (307) and the top second rotating rod (308). A top first gear (310) is fixedly connected to one end of the top first rotating rod (307). A top second gear (311) is provided on the surface of the top first gear (310). A top third rotating rod (312) is fixedly connected to one end of the top first gear (310). A top servo motor (313) is provided at one end of the top third rotating rod (312). A top servo motor base (314) is provided on the lower surface of the top servo motor (313). A top disintegration box (304) is fixedly connected to one side of the top servo motor base (314). A top short rod (315) is fixedly connected to one end of the top second gear (311).

4. The bufferable powder hopper opening for PVC foam board feeding according to claim 1, characterized in that, The bottom disintegration module (4) includes a bottom disintegration box (401). The bottom disintegration box (401) has a bottom first pivot hole, a bottom second pivot hole, a bottom third pivot hole and a bottom fourth pivot hole on its side from front to back. A bottom first pivot (402) is installed on the inner wall of the bottom first pivot hole, a bottom second pivot (403) is installed on the inner wall of the bottom second pivot hole, a bottom third pivot (404) is installed on the inner wall of the bottom third pivot hole, and a bottom fourth pivot (405) is installed on the inner wall of the bottom fourth pivot hole. The inner wall of the bottom first rotating shaft (402) is equipped with a bottom first rotating rod (406), the inner wall of the bottom second rotating shaft (403) is equipped with a bottom second rotating rod (407), the inner wall of the bottom third rotating shaft (404) is equipped with a bottom third rotating rod (408), the inner wall of the bottom fourth rotating shaft (405) is equipped with a bottom fourth rotating rod (409), and the surfaces of the bottom first rotating rod (406), bottom second rotating rod (407), bottom third rotating rod (408) and bottom fourth rotating rod (409) are fixedly connected with a disintegration plate (410).

5. The PVC foam board feeder with buffered powder hopper according to claim 4, characterized in that, One end of the bottom first rotating rod (406) is fixedly connected to the bottom first gear (411), one end of the bottom first gear (411) is fixedly connected to the bottom first short rod (412), one end of the bottom first short rod (412) is fixedly connected to the left grooved wheel (413), one end of the left grooved wheel (413) is fixedly connected to the bottom second short rod (414), one end of the bottom second short rod (414) is provided with a bottom servo motor (415), the lower surface of the bottom servo motor (415) is provided with a bottom servo motor base (416), one side of the bottom servo motor base (416) is fixedly connected to the bottom disassembly box (401), and the surface of the bottom first gear (411) is provided with a bottom second gear (417).

6. The bufferable powder hopper opening for PVC foam board feeding according to claim 5, characterized in that, One end of the bottom second gear (417) is fixedly connected to the bottom third short rod (418). A belt (419) is installed on the surface of the left groove wheel (413). The left groove wheel (413) is connected to the right groove wheel (420) via the belt (419). One end of the right groove wheel (420) is fixedly connected to the bottom fourth short rod (421). One end of the bottom fourth short rod (421) is fixedly connected to the bottom third gear (422). The surface of the bottom third gear (422) is provided with the bottom fourth gear (423). One end of the bottom fourth gear (423) is fixedly connected to the bottom fifth short rod (424).

7. The PVC foam board feeder with buffered powder hopper according to claim 1, characterized in that, The powder grinding module (5) includes a powder grinding box (501), the inner wall of the powder grinding box (501) is fixedly connected with a slide groove (502), the inner wall of the slide groove (502) is provided with a sliding tenon (503), the top and bottom of the sliding tenon (503) are provided with pulleys (504), the inner wall of the sliding tenon (503) is provided with a round rolling hole, the inner wall of the round rolling hole is installed with a powder grinding round roller (505), and the front of the sliding tenon (503) is provided with a push-pull plate (506).

8. The PVC foam board feeder with buffered powder hopper according to claim 7, characterized in that, The push-pull plate (506) is threadedly connected to a sliding tenon (503) via a push-pull plate bolt. A threaded ring (507) is fixedly connected to one side of the push-pull plate (506). A cylinder (508) is threadedly connected to the inner wall of the threaded ring (507). A C-shaped plate (509) is fixedly connected to the side of the cylinder (508). A powder grinding box body (501) is fixedly connected to the cylinder (508) via the C-shaped plate (509). A push-pull plate groove is provided on the front of the powder grinding box body (501). The push-pull plate groove and the push-pull plate (506) are mutually compatible. A fine mesh screen (510) is fixedly connected to the bottom of the powder grinding box body (501).

9. The method for operating the PVC foam board feeder with buffered powder hopper according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: The PVC foam board powder is conveyed through the feeding pipe (1) to the feeding plate cover (2), and finally enters the receiving port (301) of the top dispersing module (3). Then the powder falls through the feeding end (303) onto the powder receiving plate (309) on the surface of the top first rotating rod (307) and the top second rotating rod (308). However, before the feeding process, the top servo motor (313) needs to be started. The rotor in the top servo motor (313) rotates, which in turn drives the top third rotating rod (312) to start rotating. When the top third rotating rod (312) rotates, it will drive the top first gear (310) to rotate. The rotation of the top first gear (310) will drive the top second gear (311) meshing with it to rotate in the opposite direction. The top first gear (310) and the top second gear The rotation of (311) will drive the corresponding top first rotating rod (307) and top second rotating rod (308) to rotate in opposite directions. At this time, the feeding program is started. After the powder is dropped, it falls in a pile. Because the top first rotating rod (307) and top second rotating rod (308) rotate, the powder receiving plate (309) on their surface will break up the pile of powder and also receive some powder. The received powder will be slowly sprinkled into the bottom dispersing module (4). The main function of the top dispersing module is to initially disperse the pile of powder, break up the very large block of powder into smaller block of powder, and slowly sprinkle it into the bottom dispersing module (4). Breaking up the pile of block of powder into small block of powder can delay the falling time of the powder to a certain extent. This module serves as an initial buffer to complete the operation. Step 2: Before the large lumps of powder are broken into smaller pieces by the top dispersing module (3) and slowly sprinkled into the bottom dispersing box (401) of the bottom dispersing module (4), the bottom servo motor (415) needs to be started. At this time, the rotor inside the bottom servo motor (415) rotates, which in turn drives the bottom second short rod (414) to rotate, thereby driving the left groove wheel (413) and the bottom first short rod (412) to rotate. When the left groove wheel (413) rotates, the left groove wheel (413) drives the right groove wheel (420) to rotate through the belt (419), which in turn drives the bottom fourth short rod (401) to rotate. When the short rod (421) rotates, the first short rod (412) at the bottom rotates, which will drive the first gear (411) at the bottom to rotate. The rotation of the first gear (411) at the bottom will drive the second gear (417) at the bottom that meshes with it to rotate. The rotation of the fourth short rod (421) at the bottom will drive the third gear (422) at the bottom to rotate. The rotation of the third gear (422) at the bottom will drive the fourth gear (423) at the bottom that meshes with it to rotate. At this time, the first gear (411) at the bottom and the second gear (417) at the bottom move in opposite directions, and the third gear (422) at the bottom and the fourth gear (423) at the bottom move in opposite directions. The rotation of the bottom first gear (411), bottom second gear (417), bottom third gear (422), and bottom fourth gear (423) will respectively drive the corresponding bottom first rotating rod (406), bottom second rotating rod (407), bottom third rotating rod (408), and bottom fourth rotating rod (409) to rotate. At this time, the dispersing plate (410) on its surface will also rotate. When the small pieces of powder fall into the bottom dispersing box (401), the small pieces of powder will be further dispersed by the dispersing plate (410). After the material is dispersed again in the bottom dispersing module, the powder will be basically broken into granules. The granules will fall into the powder dispersing module (5). The bottom dispersing module breaks the small pieces of powder into granules. Because the granules are lighter, they fall more slowly, thus better controlling the falling time and giving enough time for the PVC foam board making machine to make PVC foam boards. This reduces the amount of powder falling into the machine too early, resulting in low quality of PVC foam boards. This module is the second buffer to complete the operation. Step 3: The granular powder falls from the bottom dispersing module (4) and enters the powder grinding box (501). When the granular powder particles are small, they will fall directly through the fine mesh screen (510). When the granular powder particles are large, they will be isolated on the fine mesh screen (510). At this time, the user needs to start the cylinder (508). After the cylinder (508) is started, the air rod on the cylinder (508) will be driven to move horizontally. When the air rod on the cylinder (508) drives the push-pull plate (506) to also move horizontally, the push-pull plate (506) will also move horizontally. When 506) makes a horizontal movement, it will pull the mortise (503) to make a horizontal movement back and forth. The pulley (504) on the mortise (503) is to make the mortise (503) move more smoothly in the chute (502). When the mortise (503) moves in the chute (502), the powder crushing roller (505) will also roll. The rolling of the powder crushing roller (505) will crush the large granular powder on the dense mesh screen (510) into smaller granular powder, and enter the PVC foam board production machine through the dense mesh screen (510) to complete the operation. Step 4: When it is necessary to connect the powder hopper to the PVC foam board production machine, the user needs to place the heating welding rod (604) inside the inner wall of the sleeve plate (603), and then place the PVC foam board production machine inside the sleeve plate (603). At this time, the PVC foam board production machine is also placed inside the heating welding rod (604). When the heating welding rod (604) is firmly fixed between the PVC foam board production machine and the sleeve plate (603), the user clamps the existing welding clamp onto the connecting ring (606). At this time, the welding machine will convert electricity into heat, and a large amount of heat will enter the heating welding rod (604) through the heating connecting line (605). After being heated, the heating welding rod (604) will be directly welded between the sleeve plate (603) and the PVC foam board production machine, thereby connecting the powder hopper and the PVC foam board production machine together and completing the operation.

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