PVC resin calcium powder efficient mixing and stirring device with self-cleaning function

Abstract

The invention discloses an efficient PVC resin calcium powder mixing and stirring device with a self-cleaning function, and relates to the technical field of PVC resin processing equipment.The efficient PVC resin calcium powder mixing and stirring device comprises a stirring barrel, and a stirring and mixing mechanism and an efficient self-cleaning mechanism are arranged in the stirring barrel; a driving mechanism for driving the stirring and mixing mechanism and the efficient self-cleaning mechanism is arranged at the top of the stirring barrel. According to the efficient PVC resin calcium powder mixing and stirring device with the self-cleaning function, by arranging the efficient self-cleaning mechanism and the driving mechanism, effective cleaning of the inner wall of the stirring barrel is achieved, and the problems that after an existing stirring device is used, part of materials are left in the stirring device, cleaning is difficult, and although some stirring devices with the self-cleaning function exist, the stirring effect is poor are solved. However, the self-cleaning effect is not ideal, and residual materials are difficult to thoroughly remove.

Description

Technical Field

[0001] The present invention relates to the technical field of PVC resin processing equipment, and particularly to an efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function. Background Art

[0002] In the production and processing field of PVC resin, mixing and stirring PVC resin with calcium powder is a crucial link, aiming to effectively improve the hardness, toughness, stability and other properties of PVC products, so as to meet the diverse needs of different industries.

[0003] However, the existing devices have the following deficiencies during use:

[0004] After the existing stirring devices are used, some materials will remain inside, which is difficult to clean. If not cleaned in time, the residual materials will affect the mixing quality of the next time, and the long-term accumulation of residual materials may also breed bacteria and deteriorate, while increasing the equipment maintenance cost and manual cleaning cost. At present, although there are some stirring devices with self-cleaning functions, the self-cleaning effect is not ideal and it is difficult to completely remove the residual materials.

[0005] Therefore, we propose an efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide an efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function. The driving shaft rotates driven by a servo motor. Through the meshing transmission of two first bevel gears and a second bevel gear, the transmission sleeve drives the connecting plate and the first straight gear to rotate. The first straight gear meshes with the internal gear, so that the first straight gear will move in a circular motion along the internal gear while rotating, and the first straight gear drives the rotating rod, the scraping plate and the cleaning brush to move. The scraping plate can scrape the residual materials on the inner wall of the stirring cylinder, and the cleaning brush can further clean the residual fine materials, so as to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function, including a stirring cylinder. A stirring and mixing mechanism and an efficient self-cleaning mechanism are arranged inside the stirring cylinder. A driving mechanism for driving the stirring and mixing mechanism and the efficient self-cleaning mechanism is arranged at the top of the stirring cylinder;

[0008] The driving mechanism includes a fixed housing and a servo motor. The output end of the servo motor movably penetrates through the fixed housing and is fixedly connected to a driving shaft. The bottom end of the driving shaft movably penetrates through the fixed housing and the mixing barrel. A transmission sleeve is rotatably installed at the inner top of the mixing barrel. The top end of the transmission sleeve movably penetrates through the mixing barrel and the fixed housing. Two first bevel gears are fixedly connected between the top end of the transmission sleeve and the outer surface of the driving shaft. A second bevel gear is rotatably connected inside the fixed housing.

[0009] The high-efficiency self-cleaning mechanism includes an internal gear. A connecting plate is fixedly connected to the outer surface of the transmission sleeve. A first spur gear is rotatably installed at the bottom of the connecting plate. A rotating rod is fixedly connected to the bottom end of the first spur gear. A scraping plate and a cleaning brush are fixedly connected to the outer surface of the rotating rod.

[0010] Preferably, the fixed housing is fixedly connected to the top of the mixing barrel, and the servo motor is fixedly installed on the top of the fixed housing.

[0011] Preferably, the transmission sleeve is of a hollow structure, and one of the first bevel gears and the transmission sleeve are respectively sleeved on the outer surface of the driving shaft.

[0012] Preferably, the second bevel gear is meshed with the two first bevel gears respectively, and a third spur gear is fixedly connected to the outer surface of the driving shaft.

[0013] Preferably, the first spur gear is meshed with the internal gear. The internal gear is fixedly connected to the inner surface of the mixing barrel. Two rotating rigid pipes are rotatably installed at the inner top of the mixing barrel. Two second spur gears are fixedly connected to the outer surfaces of the two rotating rigid pipes. The third spur gear is meshed with the two second spur gears respectively.

[0014] Preferably, two cross pipes are installed at the bottom ends of the two rotating rigid pipes, and the two cross pipes are communicated with the interiors of the two rotating rigid pipes. A plurality of nozzles are installed at the bottoms of the two cross pipes.

[0015] Preferably, a U-shaped pipe is installed at the top of the mixing barrel. The top ends of the two rotating rigid pipes are rotatably connected to the bottom of the U-shaped pipe, and the two rotating rigid pipes are communicated with the interior of the U-shaped pipe.

[0016] Preferably, a water pump is installed at the top of the mixing barrel. The output end of the water pump is communicated with the interior of the U-shaped pipe through a pipeline.

[0017] Preferably, the stirring and mixing mechanism includes a plurality of first stirring plates. The plurality of first stirring plates are fixedly connected to the outer surface of the transmission sleeve. A plurality of second stirring plates are fixedly connected to the outer surface of the driving shaft.

[0018] Preferably, a PVC resin feed pipe and a calcium powder feed pipe are fixedly communicated with the outer surface of the mixing drum, and a discharge pipe is fixedly communicated with the bottom of the mixing drum. Solenoid valves are installed on the PVC resin feed pipe, the calcium powder feed pipe and the discharge pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. By setting an efficient self-cleaning mechanism and a driving mechanism, the present invention drives the driving shaft to rotate through a servo motor. The driving shaft drives the transmission sleeve to drive the connecting plate and the first straight gear to rotate through the meshing transmission of two first bevel gears and a second bevel gear. The first straight gear meshes with the internal gear, so that the first straight gear not only rotates but also moves in a circular motion along the internal gear, driving the rotating rod, the scraping plate and the cleaning brush to move. The scraping plate can scrape the residual materials on the inner wall of the mixing drum, and the cleaning brush can further clean the residual fine materials, realizing the effective cleaning of the inner wall of the mixing drum, and solving the problem that after the existing mixing device is used, some materials will remain inside, which is difficult to clean. Although there are some mixing devices with self-cleaning functions, the self-cleaning effect is not ideal and it is difficult to completely remove the residual materials.

[0021] 2. When the driving shaft rotates in the present invention, the third straight gear on its outer surface drives two rotating rigid pipes to rotate by meshing with two second straight gears. The rotating rigid pipes drive the cross pipe and the nozzle to rotate. The water pump transports the cleaning liquid through the U-shaped pipe, the rotating rigid pipe and the cross pipe to the nozzle for spraying, flushing the inside of the mixing drum. The rotating nozzle can expand the cleaning range, further improving the self-cleaning effect, avoiding the influence of residual materials on the quality of the next mixing, reducing the possibility of bacterial growth and deterioration, and reducing the equipment maintenance cost and the manual cleaning cost.

[0022] 3. In the present invention, the servo motor in the driving mechanism drives the driving shaft to rotate. The driving shaft drives the transmission sleeve to drive a plurality of first stirring plates in the mixing and stirring mechanism to rotate through the meshing transmission of two first bevel gears and a second bevel gear. At the same time, the driving shaft rotates to drive a plurality of second stirring plates to rotate, and the rotation directions of the first stirring plate and the second stirring plate are opposite, which can improve the mixing efficiency and the mixing quality, make the PVC resin and the calcium powder fully mixed, and effectively improve the properties such as hardness, toughness and stability of the PVC products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional view of the main structure of a PVC resin calcium powder high-efficiency mixing and stirring device with a self-cleaning function according to the present invention;

[0024] Figure 2 is a three-dimensional view of the rear structure of a PVC resin calcium powder high-efficiency mixing and stirring device with a self-cleaning function according to the present invention;

[0025] Figure 3 Stereoscopic bottom view of the structure of an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention;

[0026] Figure 4 Stereoscopic sectional view of the stirring cylinder in an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention;

[0027] Figure 5 Stereoscopic partial sectional view of an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention;

[0028] Figure 6 Stereoscopic sectional view of the fixed shell in an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention;

[0029] Figure 7 In an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention Figure 5 Stereoscopic enlarged view of the structure at position B;

[0030] Figure 8 In an efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to the present invention Figure 4 Stereoscopic enlarged view of the structure at position A.

[0031] In the figure: 1, stirring cylinder; 2, stirring and mixing mechanism; 201, first stirring plate; 202, second stirring plate; 3, efficient self-cleaning mechanism; 301, internal gear; 302, connecting plate; 303, first straight gear; 304, rotating rod; 305, scraping plate; 306, cleaning brush; 307, rotating rigid pipe; 308, second straight gear; 309, horizontal pipe; 310, nozzle; 311, U-shaped pipe; 312, water pump; 4, driving mechanism; 401, fixed shell; 402, servo motor; 403, driving shaft; 404, transmission sleeve; 405, first bevel gear; 406, second bevel gear; 407, third straight gear; 5, PVC resin feed pipe; 6, calcium powder feed pipe; 7, discharge pipe; 8, solenoid valve. Detailed implementation method

[0032] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] As Figures 1-8As shown in the figure, the present invention provides a technical solution: a highly efficient PVC resin calcium powder mixing and stirring device with a self-cleaning function, including a stirring cylinder 1, a stirring and mixing mechanism 2 and a highly efficient self-cleaning mechanism 3 are arranged in the stirring cylinder 1, and a driving mechanism 4 for driving the stirring and mixing mechanism 2 and the highly efficient self-cleaning mechanism 3 is arranged at the top of the stirring cylinder 1;

[0034] The driving mechanism 4 includes a fixed shell 401 and a servo motor 402. The output end of the servo motor 402 movably penetrates through the fixed shell 401 and is fixedly connected to a driving shaft 403. The bottom end of the driving shaft 403 movably penetrates through the fixed shell 401 and the stirring cylinder 1. A transmission sleeve 404 is rotatably installed at the inner top of the stirring cylinder 1. The top end of the transmission sleeve 404 movably penetrates through the stirring cylinder 1 and the fixed shell 401. Two first bevel gears 405 are fixedly connected to the outer surface of the top end of the transmission sleeve 404 and the outer surface of the driving shaft 403. A second bevel gear 406 is rotatably connected to the inner side of the fixed shell 401;

[0035] The highly efficient self-cleaning mechanism 3 includes an internal gear 301. A connecting plate 302 is fixedly connected to the outer surface of the transmission sleeve 404. A first straight gear 303 is rotatably installed at the bottom of the connecting plate 302. A rotating rod 304 is fixedly connected to the bottom end of the first straight gear 303. A scraping plate 305 and a cleaning brush 306 are fixedly connected to the outer surface of the rotating rod 304.

[0036] As Figure 1 and Figure 2 shown, the fixed shell 401 is fixedly connected to the top of the stirring cylinder 1, and the servo motor 402 is fixedly installed on the top of the fixed shell 401. The fixed shell 401 provides a stable support for the servo motor 402 and transmission components, ensuring the stability of the driving process. The servo motor 402 can accurately control the rotation speed of the driving shaft 403, and then flexibly adjust the working states of the stirring and mixing mechanism 2 and the highly efficient self-cleaning mechanism 3 according to different mixing process requirements, realizing refined production.

[0037] As Figure 4 and Figure 6 shown, the transmission sleeve 404 is a hollow structure. One of the first bevel gears 405 and the transmission sleeve 404 are respectively sleeved on the outer surface of the driving shaft 403. By sleeving the first bevel gear 405 and the transmission sleeve 404 on the outer surface of the driving shaft 403 and cooperating with the second bevel gear 406, a compact and efficient transmission structure is formed to realize the synchronous transmission of the driving shaft 403 and the transmission sleeve 404, providing stable power for the stirring and mixing mechanism 2 and the highly efficient self-cleaning mechanism 3, and saving the internal space of the equipment at the same time.

[0038] As Figure 4 、 Figure 6 and Figure 8As shown, the second bevel gear 406 is respectively meshed and connected with two first bevel gears 405. A third spur gear 407 is fixedly connected to the outer surface of the drive shaft 403. Through the meshing of the second bevel gear 406 with the two first bevel gears 405, it is convenient to convert the rotation of the drive shaft 403 into the rotation of the transmission sleeve 404, and realize the rotation of the two in different directions, providing power for the reverse rotation of the first stirring plate 201 and the second stirring plate 202 in the stirring and mixing mechanism 2, enhancing the stirring and mixing effect; the third spur gear 407 on the outer surface of the drive shaft 403 meshes with the second spur gear 308 to accurately transmit the power to the rotating hard pipe 307 of the highly efficient self-cleaning mechanism 3, enabling the nozzle 310 to rotate and wash, realizing the reasonable diversion and full utilization of power between the stirring and cleaning functions, and improving the operation efficiency of the equipment.

[0039] As Figure 7 and Figure 8 shown, the first spur gear 303 is meshed and connected with the internal gear 301. The internal gear 301 is fixedly connected to the inner surface of the mixing drum 1. Two rotating hard pipes 307 are rotatably installed at the inner top of the mixing drum 1. Two second spur gears 308 are fixedly connected to the outer surfaces of the two rotating hard pipes 307. The third spur gear 407 is respectively meshed and connected with the two second spur gears 308. Through the meshing of the first spur gear 303 with the internal gear 301, it is ensured that the rotating rod 304, the scraping plate 305 and the cleaning brush 306 make circular motions along the inner wall of the mixing drum 1, realizing the all-round and dead-angle-free cleaning of the residual materials on the inner wall of the mixing drum 1; the meshing of the third spur gear 407 with the second spur gear 308 enables the rotating hard pipe 307 to obtain power and rotate, driving the horizontal pipe 309 and the nozzle 310 to rotate, expanding the spraying range of the cleaning liquid, so that all corners inside the mixing drum 1 can be rinsed, combining mechanical scraping with liquid rinsing, and significantly improving the self-cleaning ability.

[0040] As Figure 1 and Figure 8 shown, two horizontal pipes 309 are installed at the bottom ends of the two rotating hard pipes 307, and the two horizontal pipes 309 are internally connected to the two rotating hard pipes 307. A plurality of nozzles 310 are installed at the bottoms of the two horizontal pipes 309. Through the connection of the horizontal pipe 309 with the rotating hard pipe 307, a conveying channel for the cleaning liquid is constructed. The plurality of nozzles 310 are evenly distributed at the bottom of the horizontal pipe 309, and can evenly and comprehensively spray the cleaning liquid into the mixing drum 1; when the rotating hard pipe 307 rotates, it drives the horizontal pipe 309 and the nozzle 310 to rotate synchronously, expanding the spraying range of the cleaning liquid, avoiding cleaning dead angles, effectively removing stubborn residual materials in the mixing drum 1, and improving the cleaning efficiency and cleaning quality.

[0041] As Figure 6 and Figure 8The bottom of the pipe 311 is rotatably connected, and the two rotating rigid pipes 307 are internally connected to the U-shaped pipe 311. A stable connection channel is formed between the rotating rigid pipe 307 and the water pump 312 through the U-shaped pipe 311. While ensuring that the rotating rigid pipe 307 can rotate freely, it ensures that the cleaning liquid can be smoothly transported from the water pump 312 to the rotating rigid pipe 307 and the nozzle 310, guaranteeing the long-term stable operation of the cleaning liquid transportation system and enhancing the stability of the self-cleaning function of the equipment.

[0042] As Figure 6 and Figure 8 shown, a water pump 312 is installed at the top of the mixing drum 1. The output end of the water pump 312 is connected to the inside of the U-shaped pipe 311 through a pipeline. The water pump 312 can pressurize the cleaning liquid so that it sprays out from the nozzle 310 with a greater pressure, enhancing the flushing force and effectively removing the stubborn materials remaining in the mixing drum 1. By controlling the power and running time of the water pump 312, the flow rate and pressure of the cleaning liquid can be flexibly adjusted to adapt to different cleaning requirements, achieving precise cleaning. While ensuring the cleaning effect, it avoids water resource waste and reduces the cleaning cost.

[0043] As Figure 4 shown, the stirring and mixing mechanism 2 includes a plurality of first stirring plates 201. The plurality of first stirring plates 201 are fixedly connected to the outer surface of the transmission sleeve 404. A plurality of second stirring plates 202 are fixedly connected to the outer surface of the driving shaft 403. By fixing the plurality of first stirring plates 201 and the second stirring plates 202 to the outer surfaces of the transmission sleeve 404 and the driving shaft 403 respectively, and with their rotation directions opposite to each other, a strong convective stirring effect is formed during the stirring process. Under the action of the stirring forces in different directions, the materials are accelerated to penetrate and mix with each other. Compared with the traditional single-direction stirring, the mixing uniformity and mixing efficiency are significantly improved, ensuring the full mixing of PVC resin and calcium powder, and thus effectively improving the properties such as hardness, toughness, and stability of PVC products.

[0044] As Figure 1 and Figure 3 shown, a PVC resin feed pipe 5 and a calcium powder feed pipe 6 are fixedly connected to the outer surface of the mixing drum 1. A discharge pipe 7 is fixedly connected to the bottom of the mixing drum 1. Solenoid valves 8 are installed on the PVC resin feed pipe 5, the calcium powder feed pipe 6, and the discharge pipe 7. The independent transportation of the two materials is realized through the PVC resin feed pipe 5 and the calcium powder feed pipe 6. By controlling the opening time and frequency of the solenoid valve 8, the feeding amount of the materials can be accurately adjusted to ensure the accuracy of the material ratio. The discharge pipe 7 is used to discharge the mixed materials. The solenoid valve 8 can precisely control the discharge time and flow rate, realizing automatic operation, avoiding material waste, and improving the controllability of the production process, enabling the equipment to adapt to the requirements of different production processes and production scales and enhancing the overall production efficiency.

[0045] Usage method and working principle of this device: In the preparation stage, check whether all components of the equipment are firmly installed, whether the solenoid valves 8 on the PVC resin feed pipe 5, calcium powder feed pipe 6, and discharge pipe 7 are normal, and whether the water pump 312 and pipeline connections are intact to ensure no leakage. At the same time, connect the input end of the water pump 312 to an external water source (cleaning liquid) through a pipeline.

[0046] In the material addition stage, open the solenoid valves 8 on the PVC resin feed pipe 5 and calcium powder feed pipe 6, and convey the PVC resin and calcium powder to the mixing drum 1 through the feed pipes respectively according to the set ratio. After completion, close the solenoid valves 8.

[0047] In the stirring and mixing stage, start the servo motor 402. The servo motor 402 drives the drive shaft 403 to rotate. Through the cooperation of the drive shaft 403, the first bevel gear 405, and the second bevel gear 406, the transmission sleeve 404 is driven to rotate. The rotation of the transmission sleeve 404 drives the rotation of multiple first stirring plates 201 on its outer surface. At the same time, the rotation of the drive shaft 403 drives the rotation of multiple second stirring plates 202 on its outer surface. The first stirring plates 201 and the second stirring plates 202 rotate in opposite directions, forming a convective stirring effect, so that the PVC resin and calcium powder are subjected to stirring forces in different directions in the mixing drum 1, accelerating the mutual penetration and mixing, improving the mixing uniformity and efficiency. At the same time, it drives the high-efficiency self-cleaning mechanism 3 to move synchronously. The scraper 305 and cleaning brush 306 on the high-efficiency self-cleaning mechanism 3 can scrape off the materials adhering to the inner wall of the mixing drum 1, further improving the stirring and mixing effect. After stirring is completed, turn off the servo motor 402.

[0048] In the discharging stage, open the solenoid valve 8 on the discharge pipe 7 to discharge the mixed materials.

[0049] During the self-cleaning phase of the device, the servo motor 402 is restarted again. At the same time, the water pump 312 is turned on. When the transmission sleeve 404 rotates, it drives the first straight gear 303 to rotate through the connecting plate 302. The first straight gear 303 meshes with the internal gear 301 fixed on the inner surface of the mixing drum 1, causing the first straight gear 303 to perform a circular motion along the internal gear 301 while rotating. As a result, the rotating rod 304, the scraping plate 305, and the cleaning brush 306 move along the inner wall of the mixing drum 1. The scraping plate 305 scrapes off large pieces of residual materials, and the cleaning brush 306 sweeps away fine particles, achieving mechanical scraping and cleaning. At the same time, when the drive shaft 403 rotates, the third straight gear 407 on its outer surface meshes with the second straight gear 308 on the outer surface of the rotating hard tube 307, driving the two rotating hard tubes 307 to rotate. The rotating hard tubes 307 then drive the horizontal tube 309 and the nozzle 310 to rotate. After the water pump 312 pressurizes the cleaning liquid, it is transported to the nozzle 310 through the U-shaped tube 311, the rotating hard tubes 307, and the horizontal tube 309 and sprayed out. The rotating nozzle 310 expands the spraying range of the cleaning liquid to wash the inside of the mixing drum 1. By combining mechanical scraping and liquid flushing, the residual materials are completely removed. After the cleaning is completed, the servo motor 402 and the water pump 312 can be turned off.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function, characterized in that, It includes a mixing drum (1), a mixing mechanism (2) and an efficient self-cleaning mechanism (3) are arranged inside the mixing drum (1), and a driving mechanism (4) for driving the mixing mechanism (2) and the efficient self-cleaning mechanism (3) is arranged at the top of the mixing drum (1); The driving mechanism (4) includes a fixed housing (401) and a servo motor (402). The output end of the servo motor (402) movably penetrates through the fixed housing (401) and is fixedly connected to a driving shaft (403). The bottom end of the driving shaft (403) movably penetrates through the fixed housing (401) and the mixing drum (1). A transmission sleeve (404) is rotatably installed at the inner top of the mixing drum (1). The top end of the transmission sleeve (404) movably penetrates through the mixing drum (1) and the fixed housing (401). Two first bevel gears (405) are fixedly connected to the outer surface of the top end of the transmission sleeve (404) and the outer surface of the driving shaft (403). A second bevel gear (406) is rotatably connected to the inner side of the fixed housing (401); The efficient self-cleaning mechanism (3) includes an internal gear (301). A connecting plate (302) is fixedly connected to the outer surface of the transmission sleeve (404). A first spur gear (303) is rotatably installed at the bottom of the connecting plate (302). A rotating rod (304) is fixedly connected to the bottom end of the first spur gear (303). A scraping plate (305) and a cleaning brush (306) are fixedly connected to the outer surface of the rotating rod (304).

2. The high-efficiency mixing and stirring device for PVC resin calcium powder with self-cleaning function according to claim 1, wherein: The fixed housing (401) is fixedly connected to the top of the mixing drum (1), and the servo motor (402) is fixedly installed on the top of the fixed housing (401).

3. The high-efficiency mixing and stirring device for PVC resin calcium powder with self-cleaning function according to claim 1, wherein: The transmission sleeve (404) is of a hollow structure, and one of the first bevel gears (405) and the transmission sleeve (404) are respectively sleeved on the outer surface of the driving shaft (403).

4. An efficient PVC resin calcium powder mixing and stirring device with self-cleaning function according to claim 3, characterized in that: The second bevel gear (406) is respectively meshed with the two first bevel gears (405), and a third spur gear (407) is fixedly connected to the outer surface of the driving shaft (403).

5. An efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function according to claim 4, characterized in that: The first spur gear (303) is meshed with the internal gear (301). The internal gear (301) is fixedly connected to the inner surface of the mixing drum (1). Two rotating hard tubes (307) are rotatably installed at the inner top of the mixing drum (1). Two second spur gears (308) are fixedly connected to the outer surface of the two rotating hard tubes (307). The third spur gear (407) is respectively meshed with the two second spur gears (308).

6. The highly efficient PVC resin calcium powder mixing and stirring device with self-cleaning function according to claim 5, characterized in that: Two cross tubes (309) are installed at the bottom ends of the two rotating hard tubes (307), and the two cross tubes (309) are communicated with the interiors of the two rotating hard tubes (307). A plurality of nozzles (310) are installed at the bottoms of the two cross tubes (309).

7. An efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function according to claim 5, characterized in that: A U-shaped tube (311) is installed at the top of the mixing drum (1). The top ends of the two rotating hard tubes (307) are rotatably connected to the bottom of the U-shaped tube (311), and the two rotating hard tubes (307) are communicated with the interior of the U-shaped tube (311).

8. An efficient mixing and stirring device for PVC resin calcium powder with a self-cleaning function according to claim 7, characterized in that: A water pump (312) is installed at the top of the mixing drum (1), and the output end of the water pump (312) is connected to the inside of a U-shaped pipe (311) through a pipeline.

9. An efficient mixing and stirring device for PVC resin calcium powder with self-cleaning function according to claim 2, characterized in that: The stirring and mixing mechanism (2) includes a plurality of first stirring plates (201), and the plurality of first stirring plates (201) are fixedly connected to the outer surface of a transmission sleeve (404). A plurality of second stirring plates (202) are fixedly connected to the outer surface of the drive shaft (403).

10. A highly efficient PVC resin calcium powder mixing and stirring device with self-cleaning function according to claim 1, characterized in that: A PVC resin feed pipe (5) and a calcium powder feed pipe (6) are fixedly communicated with the outer surface of the mixing drum (1). A discharge pipe (7) is fixedly communicated with the bottom of the mixing drum (1). Solenoid valves (8) are installed on the PVC resin feed pipe (5), the calcium powder feed pipe (6), and the discharge pipe (7).

Images