Heat-insulation flame-retardant high-voltage cable material processing device

Abstract

The invention relates to the technical field of cable material processing, and particularly provides a heat-insulation flame-retardant high-voltage cable material processing device which comprises a mixing barrel, a fixing cover is fixedly mounted at the upper end of the mixing barrel, a connecting disc is rotatably mounted in the fixing cover, a gear ring is fixedly mounted on the inner side of the connecting disc, and a large gear is arranged in the center of the gear ring. A small gear is arranged on the outer side of the large gear in a meshed mode, a stirring shaft is fixedly installed at the lower end of the large gear, multiple sets of conical rods are rotationally arranged on the outer side of the stirring shaft, a scraping assembly is fixedly installed at the lower end of the small gear and comprises a center shaft, and multiple sets of scraping extrusion mechanisms are fixedly installed on the outer side of the center shaft; silicone oil is added from the position close to the inner wall of the stirring barrel in the stirring process, the silicone oil can quickly act on the easily-sticky barrel wall area, friction between materials and the barrel wall and the scraping mechanism is reduced, the risks of local overheating and polymer degradation are reduced, meanwhile, a lubricating agent is evenly diffused to the center area through stirring motion, and the mixing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable material processing, and in particular to a heat-insulating flame-retardant high-voltage cable material processing device. Background Art

[0002] In the field of modern power transmission, high-voltage cables are the key carriers of electric energy transmission, and their performance is directly related to the stable operation of the power system. As the core component of high-voltage cables, heat-insulating and flame-retardant high-voltage cable materials play a decisive role in the safe and reliable operation of cables. Cable materials usually have high viscosity, which makes the fluidity of materials worse during the mixing process. Viscous materials are easy to adhere to the stirring blades and the inner wall of the stirring equipment, forming material accumulation, resulting in the weakening of the relative movement between the stirring blades and the materials, and the inability to effectively transfer the shear force to the materials, affecting the mixing effect.

[0003] For example, the existing Chinese patent with publication number CN216654314U discloses a stirring and mixing device for processing semi-rigid flame-retardant PVC high-voltage cable materials. The materials are introduced into the stirring box, and the driving motor is started. The driving motor drives the driving shaft to rotate, and the driving shaft drives the second sleeve to rotate through the limiting mechanism. The second sleeve drives the stirring rod to rotate. At the same time, the electric push rod drives the first sleeve to move up and down, and the first sleeve drives the second sleeve to move up and down. The stirring rod moves up and down when rotating, so that the stirring rod can move up and down during the rotation process, the stirring range is large, there is no dead angle, and the material mixing is more uniform.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: 1. Due to the high viscosity of the cable material, it is easy to adhere to the outside of the stirring shaft during the rotation of the stirring shaft. The adhesion of the cable material on the stirring shaft is prone to cause local overheating. The cable material adhered to the stirring shaft will undergo a decomposition reaction due to the increase in the temperature of the stirring shaft, resulting in degradation of the polymer matrix and decomposition and failure of the flame retardant; 2. Due to the excessively high temperature of the stirring shaft, thermal deformation may occur, which will destroy its dynamic balance state. At the same time, the cable material adheres to the outside of the stirring shaft, causing the center of rotation to shift. During the rotation process, the unbalanced stirring shaft will cause equipment vibration. Although the initial vibration amplitude may be small, the long-term accumulation will gradually loosen the various connecting components of the equipment, affecting the stability and service life of the equipment.

[0005] Therefore, a heat-insulating and flame-retardant high-voltage cable material processing device is needed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art. The present invention proposes a heat-insulating and flame-retardant high-voltage cable material processing device to solve the problem in the above-mentioned prior art that the cable material has a high viscosity and is easily adhered to the outside of the stirring shaft during the rotation of the stirring shaft.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is: a processing device for heat-insulating and flame-retardant high-voltage cable material, including a mixing barrel. A fixed cover is fixedly installed at the upper end of the mixing barrel. A driving motor, model Shinano 103H7123-5040, is fixedly installed at the upper end of the fixed cover. The outside of the fixed cover is fixed through multiple groups of locking buckles. A connecting disk is rotatably installed inside the fixed cover. A gear ring is fixedly installed on the inner side of the connecting disk. A large gear is arranged at the center of the gear ring. A small gear is meshed on the outside of the large gear. The small gear is meshed with the gear ring. The upper end of the large gear is fixedly connected to the driving motor. A stirring shaft is fixedly installed at the lower end of the large gear. Multiple groups of conical rods are rotatably arranged on the outside of the stirring shaft. The upper end of the stirring shaft penetrates through the connecting disk. A scraping component is fixedly installed at the lower end of the small gear. The stirring mechanism of the scraping component is arranged in an interlaced manner with the conical rods. The scraping component is in contact with the inner wall of the mixing barrel.

[0008] Further, the mixing barrel includes a barrel body housing. Multiple groups of support legs are fixedly installed at the lower end of the barrel body housing. A feed port is arranged on the outside of the barrel body housing. At least one scraping component is arranged inside the barrel body housing. The upper end of the scraping component is connected to the small gear. The lower end of the scraping component penetrates through the barrel body housing and is fixedly installed with a feeding component. A circular hole is opened at the lower end of the barrel body housing. The circular hole matches the central axis of the scraping component. A discharge port is opened at the lower end of the barrel body housing.

[0009] Furthermore, the scraping component includes a central shaft, with multiple groups of scraping and extrusion mechanisms fixedly installed on the outer side of the central shaft. A feeding component is fixedly installed at the lower end of the central shaft. The scraping and extrusion mechanisms are in contact with the inner wall of the barrel housing. When it is necessary to mix the raw materials of the cable material, various raw materials are introduced into the interior of the barrel housing through the feeding port, and the driving motor is started to drive the large gear to rotate, simultaneously driving the small gear to rotate along the gear ring, thereby driving the stirring shaft and the conical rod on its outer side to rotate. At the same time, the scraping and extrusion mechanisms at the upper end of the scraping component stir and mix the raw materials inside the barrel housing. After the stirring is completed, it is discharged through the discharging port. Since cable materials usually have high viscosity and are sensitive to temperature, too high temperature may cause the degradation of the polymer matrix and the decomposition and failure of the flame retardant. This makes the fluidity of the material worse during the stirring process, and at the same time, the viscous material is easily attached to the outer sides of the conical rod and the scraping and extrusion mechanisms as well as the inner wall of the barrel housing, resulting in local overheating on the scraping and extrusion mechanisms due to the adhesion of the cable material, decomposing the components of the cable material. At the same time, the cable material is extremely easy to adhere to the conical rod on the outer side of the stirring shaft. Since the adhesion position and thickness are often difficult to be uniform, this will break the original mass balance state of the conical rod, the stirring shaft and the scraping component. When rotating, the center of gravity will shift towards the side with more cable material, resulting in the deviation of the rotation center, which will cause the gradually loosening of the connecting components of the equipment, affecting the stability and service life of the equipment. During the stirring and mixing process of this device, the scraping and extrusion mechanisms continuously squeeze against the inner wall of the barrel housing, thereby gradually squeezing the silicone oil inside the feeding component into the interior of the scraping and extrusion mechanisms and flowing out from both sides of the scraping and extrusion mechanisms, fully mixing with the raw materials during stirring. At the same time, during the stirring process, the low surface tension of the silicone oil enables it to quickly spread on the surface of the scraping and extrusion mechanisms to form a lubricating film, thereby increasing the lubrication degree on the outer side of the scraping and extrusion mechanisms, preventing the raw materials from adhering to the outer side of the scraping and extrusion mechanisms. At the same time, the outer wall of the scraping and extrusion mechanisms is cooled by the silicone oil, reducing the problem of local overheating caused by the adhesion of the cable material and decomposing the components of the cable material. At the same time, the scraping and extrusion mechanisms continuously scrape off the cable material adhering to the outer side of the conical rod, reducing the deviation of the center of gravity during rotation, improving the stirring efficiency of the device while reducing the structural damage of the device.

[0010] Furthermore, two sets of material conveying pipes are arranged inside the central shaft, and two sets of feeding grooves I are arranged on the outer side of the central shaft. The feeding grooves I are matched with the material conveying pipes, and the feeding grooves I are communicated with the scraping and extrusion mechanisms. An exhaust pipe is arranged between the two sets of material conveying pipes, and an exhaust groove is arranged on the outer side of the central shaft. The exhaust groove is matched with the exhaust pipe, and the exhaust groove is communicated with the scraping and extrusion mechanisms.

[0011] Further, the scraping and extrusion mechanism includes a connecting shell. The interior of the connecting shell is divided into three parts, namely a central groove and discharge grooves on both sides. An inlet groove II is opened at one end of the discharge groove close to the central axis. The inlet groove II is matched with the material conveying pipe. The central groove is matched with the exhaust groove. One end of the connecting shell is slidably provided with a pressing rod, which is matched with the central groove. Limiting rods are fixedly installed on both the upper and lower sides of the pressing rod. An elastic member I is arranged outside the limiting rods. Limiting grooves are opened at both the upper and lower ends of the inner wall of the connecting shell, which are matched with the limiting rods. One end of the elastic member I is fixed on the limiting rod, and the other end is fixed on the inner wall of the limiting groove. Two sets of pressing discs are slidably arranged inside the connecting shell. The two sets of pressing discs are slidably connected to the connecting shell through elastic members II on the sides away from each other. The two sets of pressing discs penetrate through the central groove of the connecting shell on the sides away from each other and are fixedly installed with a pressing plate, which is located inside the inlet groove II. Multiple elastic members III are arranged on the side of the pressing plate close to the pressing disc. One end of the elastic member III is fixedly connected to the inner wall of the inlet groove II. Multiple discharging columns are fixedly installed on the side of the pressing plate away from the pressing disc. Multiple hole grooves are opened on the outer side of the discharging column. The discharging column penetrates through one side of the connecting shell and is slidably connected thereto. In the initial state, the hole grooves of the discharging column are located inside the discharge groove. When the driving motor drives the central axis to rotate, and then drives the scraping and extrusion mechanism to mix and stir the raw materials inside the barrel shell. In the initial state, the pressing rods inside the multiple sets of scraping and extrusion mechanisms outside the central axis do not contact the inner wall of the barrel shell. At this time, the silicone oil is stored inside the feeding assembly and will not be discharged as the scraping and extrusion mechanism rotates. When the scraping and extrusion mechanism rotates, a part of the scraping and extrusion mechanism first contacts the inner wall of the barrel shell and is extruded. Through the pressing rod inside the scraping and extrusion mechanism being extruded by the barrel shell, it contracts into the inside of the connecting shell and gradually squeezes the air inside the central groove. During the process of the pressing rod being extruded, it slides inside the connecting shell through the limiting rod and the elastic member I. When the pressing rod is extruded to the central position of the central groove, at this time, the two sets of pressing discs inside the central groove are extruded by the pressing rod. At this time, the pressing discs expand outwards, driving the pressing plate to move inside the discharge groove through the pressing discs, pushing the discharging column on one side of the pressing plate out of the inside of the connecting shell, exposing the hole grooves on the outer side of the discharging column. At the same time, when the pressing rod squeezes the air inside the central groove, the air is discharged into the inside of the exhaust pipe through one end of the central groove. At this time, the air flows into the inside of the feeding barrel through the air inlet pipe and squeezes the two piston discs, sending the silicone oil between the two piston discs and the feeding barrel into the inside of the material conveying pipe through the feeding pipe, flowing into the inside of the discharge groove through the inlet groove II, and flowing out along the hole grooves on the outer side of the discharging column. When the silicone oil flows out, it not only improves the lubrication degree of the outer surface of the connecting shell, but also can reduce the outer surface temperature of the connecting shell, reduce the decomposition of the raw materials. At the same time, by pouring the silicone oil into the mixed raw materials from the position close to the inner wall of the barrel shell, pouring the silicone oil close to the inner wall can directly act on the sticking area, quickly reduce the friction between the material and the barrel wall of the barrel shell, and reduce the sticking and accumulation.While avoiding local overheating and comparing with the central axis area, the fluidity of the material near the inner wall is worse and the friction is more intense. Lubricating this area first can improve the overall stirring resistance and enhance the stirring efficiency. Moreover, silicone oil is introduced from the inner wall position close to the barrel shell and can be quickly brought into the central area through shear force and convection to mix with the material. While the extrusion rod extrudes the inner wall of the barrel shell, the inner wall of the barrel shell is scraped to prevent the inner wall of the barrel shell from adsorbing too much raw material, resulting in a reduction in the mixing and stirring efficiency. At the same time, another part of the scraping and extrusion mechanism does not contact the inner wall of the barrel shell and only performs stirring and mixing operations. When the extrusion rod does not contact the inner wall of the barrel shell, under the action of the second elastic member, the third elastic member, and the discharge groove, the discharge column is reset to the inside of the connection shell, and at the same time, the extrusion rod is also reset. When the extrusion rod is reset, it preferentially sucks in outside air through the one-way valve to supplement the air in the central groove and the two piston discs. At this time, multiple scraping and extrusion mechanisms do not contact the inner wall of the barrel shell and only perform stirring and mixing operations with the raw material. By intermittently extruding silicone oil, the silicone oil has time to fully diffuse and penetrate in the cable material. When a certain amount of silicone oil is extruded, under the stirring action, the silicone oil gradually disperses among the materials to form a uniform lubricating film, effectively reducing the friction between the internal molecules of the material, improving the fluidity of the cable material, and enhancing the stirring uniformity.

[0012] Further, the feeding assembly includes a connecting block. A feeding barrel is fixedly installed at the lower end of the connecting block. Two feeding valves are opened at both ends of the feeding barrel. Two feeding pipes are penetrated and opened at both ends of the feeding barrel. The feeding pipes are communicated with the conveying pipes. An air inlet pipe is penetrated and opened on the outside of the feeding barrel. The air inlet pipe is communicated with the exhaust pipe. Two piston discs are arranged inside the feeding barrel. The space between the two piston discs is communicated with the air inlet pipe. A one-way valve is arranged at the lower end of the feeding barrel. The air inlet of the one-way valve is located between the two piston discs.

[0013] Further, a conical shell is fixedly installed at the upper end of the connection shell. A chute is opened inside the conical shell. Multiple elastic members four are fixedly installed inside the chute. A conical scraping block is fixedly installed at the upper end of the elastic member four. When the stirring shaft and the scraping assembly rotate, through the conical shell at the upper end of the connection shell and the conical scraping block inside it, when the stirring shaft rotates, the raw material adhered to the conical rod rotating outside the stirring shaft is scraped. When the conical rod contacts the conical scraping block, the conical scraping block is compressed by the conical rod. When the two are separated, the conical scraping block moves upward under the action of the elastic member four to scrape one side of the conical rod. Through the continuous rotation of the conical rod, the raw material adhered to the outside of the conical rod is cleaned, preventing the raw material adhered to the outside of the conical rod, reducing the deviation of the center of gravity of the stirring shaft during rotation, improving the stirring efficiency of the device, and reducing the structural damage of the device.

[0014] Compared with the prior art, the beneficial effects of the present invention include: By adding silicone oil from a position close to the inner wall of the mixing barrel during the mixing process, this solution can quickly act on the easily sticky barrel wall area, reduce the friction between the material and the barrel wall and the scraping mechanism, reduce the risk of local overheating and polymer degradation. At the same time, the lubricant is evenly diffused to the central area by the mixing movement, improving the mixing efficiency; combined with the planetary gear multi-axis mixing structure, the cooperative movement of multiple sets of mixing rods and the scraping mechanism can further enhance the mixing uniformity and scraping effect, prevent the mixing shaft from shifting the center of gravity and equipment vibration due to uneven adhesion of the material, and the intermittent extrusion of the lubricating fluid can accurately control the dosage, avoiding waste and pollution. Combining with the low-temperature lubricating fluid to reduce the temperature of the scraping mechanism, ultimately achieving high-quality mixing of cable materials and improving the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows a schematic diagram of the overall structure of a mixing barrel according to an embodiment of the present invention; Figure 2 Schematically shows a schematic diagram of the overall internal structure of a mixing barrel according to an embodiment of the present invention; Figure 3 Schematically shows a schematic diagram of a partial internal structure of a mixing barrel according to an embodiment of the present invention; Figure 4 Schematically shows a schematic diagram of the structure of a scraping assembly according to an embodiment of the present invention; Figure 5 Schematically shows a schematic diagram of the internal structure of a central shaft according to an embodiment of the present invention; Figure 6 Schematically shows a schematic diagram of the structure of a scraping and extrusion mechanism according to an embodiment of the present invention; Figure 7 Schematically shows a plan view of the structure of a scraping and extrusion mechanism according to an embodiment of the present invention; Figure 8 Schematically shows a schematic diagram of the internal structure of a scraping and extrusion mechanism according to an embodiment of the present invention Figure One ; Figure 9 Schematically shows a schematic diagram of the internal structure of a scraping and extrusion mechanism according to an embodiment of the present invention Figure Two ; Figure 10 Schematically shows a schematic diagram of a partial structure of a scraping and extrusion mechanism according to an embodiment of the present invention; Figure 11 Schematically shows a schematic diagram of the overall structure of a feeding assembly according to an embodiment of the present invention; Figure 12 Schematically shows a schematic diagram of the internal structure of a feeding assembly according to an embodiment of the present invention.

[0016] Reference numerals in the figures: 1, mixing barrel; 11, outer shell of the barrel; 111, feed inlet; 12, support leg; 13, stirring shaft; 131, conical rod; 14, scraping component; 141, central shaft; 1411, material conveying pipe; 1412, exhaust pipe; 1413, first feeding trough; 1414, exhaust trough; 142, scraping and extruding mechanism; 1421, connecting shell; 1422, discharging trough; 1423, central trough; 1424, second feeding trough; 1425, extrusion disc; 1426, extrusion plate; 1427, second elastic member; 1428, third elastic member; 1429, discharging column; 143, conical shell; 1431, chute; 1432, conical scraping block; 1433, fourth elastic member; 144, extrusion rod; 1441, limiting rod; 1442, first elastic member; 15, feeding component; 151, connecting block; 152, feeding barrel; 1521, feeding valve; 153, feeding pipe; 154, inlet pipe; 155, piston disc; 156, check valve; 16, round hole; 17, discharging port; 2, fixed cover; 21, driving motor; 22, locking buckle; 23, connecting disc; 231, gear ring; 232, large gear; 233, small gear. Detailed implementation mode

[0017] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following detailed implementation modes and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0018] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0019] According to an embodiment of the present invention in combination with Figures 1 - 3Shown is a processing device for heat-insulating and flame-retardant high-voltage cable materials, including a mixing barrel 1. A fixed cover 2 is fixedly installed at the upper end of the mixing barrel 1. A driving motor 21, model Shinano 103H7123-5040, is fixedly installed at the upper end of the fixed cover 2. The outside of the fixed cover 2 is fixed by multiple groups of locking buckles 22. A connecting disk 23 is rotatably installed inside the fixed cover 2. A gear ring 231 is fixedly installed on the inner side of the connecting disk 23. A large gear 232 is arranged at the center of the gear ring 231. A small gear 233 is meshed on the outside of the large gear 232. The small gear 233 meshes with the gear ring 231. The upper end of the large gear 232 is fixedly connected to the driving motor 21. A stirring shaft 13 is fixedly installed at the lower end of the large gear 232. Multiple conical rods 131 are rotatably arranged on the outside of the stirring shaft 13. The upper end of the stirring shaft 13 penetrates through the connecting disk 23. A scraping component 14 is fixedly installed at the lower end of the small gear 233. The stirring mechanism of the scraping component 14 is arranged in an interlaced manner with the conical rods 131. The scraping component 14 is attached to the inner wall of the mixing barrel 1.

[0020] According to an embodiment of the present invention in combination with Figures 3 - 4 Shown is that the mixing barrel 1 includes a barrel body outer shell 11. Multiple support legs 12 are fixedly installed at the lower end of the barrel body outer shell 11. A feed inlet 111 is arranged on the outside of the barrel body outer shell 11. At least one scraping component 14 is arranged inside the barrel body outer shell 11. The upper end of the scraping component 14 is connected to the small gear 233. The lower end of the scraping component 14 penetrates through the barrel body outer shell 11 and is fixedly installed with a feeding component 15. A round hole 16 is opened at the lower end of the barrel body outer shell 11. The round hole 16 matches the central axis 141 of the scraping component 14. A discharge port 17 is opened at the lower end of the barrel body outer shell 11.

[0021] According to an embodiment of the present invention in combination with Figures 3 - 4It is shown that the scraping component 14 includes a central shaft 141. Multiple groups of scraping and extrusion mechanisms 142 are fixedly installed on the outer side of the central shaft 141. A feeding component 15 is fixedly installed at the lower end of the central shaft 141. The scraping and extrusion mechanisms 142 are in contact with the inner wall of the barrel housing 11. When it is necessary to mix the raw materials of the cable material, various raw materials are introduced into the interior of the barrel housing 11 through the feeding port 111. By starting the driving motor 21, the large gear 232 is driven to rotate, and at the same time, the small gear 233 is driven to rotate along the gear ring 231, thereby driving the stirring shaft 13 and the conical rod 131 on its outer side to rotate. At the same time, the scraping and extrusion mechanisms 142 at the upper end of the scraping component 14 stir and mix the raw materials inside the barrel housing 11. After the stirring is completed, it is discharged through the discharging port 17. Since the cable material usually has high viscosity and is sensitive to temperature, too high a temperature may cause the degradation of the polymer matrix and the decomposition and failure of the flame retardant. This makes the fluidity of the material worse during the stirring process, and at the same time, the viscous material is easily attached to the outer sides of the conical rod 131 and the scraping and extrusion mechanisms 142 and the inner wall of the barrel housing 11, resulting in local overheating on the scraping and extrusion mechanisms 142 due to the adhesion of the cable material, decomposing the components of the cable material. At the same time, the cable material is extremely easy to adhere to the conical rod 131 on the outer side of the stirring shaft 13. Since the adhesion position and thickness are often difficult to be uniform, this will break the original mass balance state of the conical rod 131, the stirring shaft 13 and the scraping component 14. When rotating, the center of gravity will shift to the side with more cable material, resulting in the deviation of the rotation center, which will gradually loosen the connecting components of the equipment and affect the stability and service life of the equipment. During the stirring and mixing process of this device, the scraping and extrusion mechanisms 142 continuously squeeze against the inner wall of the barrel housing 11, thereby gradually squeezing the silicone oil inside the feeding component 15 into the interior of the scraping and extrusion mechanisms 142 and flowing out from both sides of the scraping and extrusion mechanisms 142, fully mixing with the raw materials during stirring. At the same time, during the stirring process, the low surface tension of the silicone oil enables it to quickly spread on the surface of the scraping and extrusion mechanisms 142 to form a lubricating film, thereby improving the lubricity on the outer side of the scraping and extrusion mechanisms 142, preventing the raw materials from adhering to the outer side of the scraping and extrusion mechanisms 142. At the same time, the outer wall of the scraping and extrusion mechanisms 142 is cooled by the silicone oil, reducing the problem of local overheating caused by the adhesion of the cable material and decomposing the components of the cable material. At the same time, the scraping and extrusion mechanisms 142 continuously scrape off the cable material adhered to the outer side of the conical rod 131, reducing the deviation of the center of gravity during rotation, improving the stirring efficiency of the device, and reducing the structural damage of the device.

[0022] According to an embodiment of the present invention in combination with Figures 4 - 5It is shown that two groups of material conveying pipes 1411 are arranged inside the central shaft 141, and two groups of first feeding grooves 1413 are arranged on the outer side of the central shaft 141. The first feeding grooves 1413 are matched with the material conveying pipes 1411, and the first feeding grooves 1413 are communicated with the scraping and extruding mechanism 142. An exhaust pipe 1412 is arranged between the two groups of material conveying pipes 1411. An exhaust groove 1414 is arranged on the outer side of the central shaft 141. The exhaust groove 1414 is matched with the exhaust pipe 1412, and the exhaust groove 1414 is communicated with the scraping and extruding mechanism 142.

[0023] According to an embodiment of the present invention in combination with Figures 4 - 10It is shown that the scraping and extrusion mechanism 142 includes a connecting shell 1421. The interior of the connecting shell 1421 is divided into three parts, namely a central groove 1423 and discharge grooves 1422 on both sides. At one end of the discharge groove 1422 close to the central axis 141, a second feed groove 1424 is provided. The second feed groove 1424 is matched with the material conveying pipe 1411. The central groove 1423 is matched with the exhaust groove 1414. A pressing rod 144 is slidably arranged at one end of the connecting shell 1421. The pressing rod 144 is matched with the central groove 1423. Limit rods 1441 are fixedly installed on both the upper and lower sides of the pressing rod 144. An elastic member 1442 is arranged outside the limit rods 1441. Limit grooves are provided at the upper and lower ends of the inner wall of the connecting shell 1421. The limit grooves are matched with the limit rods 1441. One end of the elastic member 1442 is fixed on the limit rod 1441, and the other end of the elastic member 1442 is fixed on the inner wall of the limit groove. Two sets of pressing discs 1425 are slidably arranged inside the connecting shell 1421. On the side where the two sets of pressing discs 1425 are away from each other, they are slidably connected to the connecting shell 1421 through elastic members 1427. On the side where the two sets of pressing discs 1425 are away from each other, they penetrate through the central groove 1423 of the connecting shell 1421 and a pressing plate 1426 is fixedly installed. The pressing plate 1426 is located inside the second feed groove 1424. On the side of the pressing plate 1426 close to the pressing disc 1425, multiple sets of elastic members 1428 are provided. One end of the elastic member 1428 is fixedly connected to the inner wall of the second feed groove 1424. On the side of the pressing plate 1426 away from the pressing disc 1425, multiple sets of discharge columns 1429 are fixedly installed. Multiple holes are provided on the outer side of the discharge columns 1429. The discharge columns 1429 penetrate through one side of the connecting shell 1421 and are slidably connected to it. In the initial state, the holes of the discharge columns 1429 are located inside the discharge grooves 1422. When the driving motor 21 drives the central axis 141 to rotate, thereby driving the scraping and extrusion mechanism 142 to mix and stir the raw materials inside the barrel housing 11, in the initial state, the pressing rods 144 inside the multiple sets of scraping and extrusion mechanisms 142 on the outer side of the central axis 141 do not contact the inner wall of the barrel housing 11. At this time, the silicone oil is stored inside the feeding assembly 15 and will not be discharged as the scraping and extrusion mechanism 142 rotates. When the scraping and extrusion mechanism 142 rotates, a part of the scraping and extrusion mechanism 142 first contacts the inner wall of the barrel housing 11 and is squeezed. Through the pressing rod 144 inside the scraping and extrusion mechanism 142 being squeezed by the barrel housing 11, it contracts into the inside of the connecting shell 1421 and gradually squeezes the air inside the central groove 1423. During the process of the pressing rod 144 being squeezed, it slides inside the connecting shell 1421 through the limit rods 1441 and the elastic member 1442. When the pressing rod 144 is squeezed to the central position of the central groove 1423, at this time, the two sets of pressing discs 1425 inside the central groove 1423 are squeezed by the pressing rod 144. At this time, the pressing discs 1425 expand outwards,Drive the extrusion plate 1426 to move inside the discharge chute 1422 through the extrusion disc 1425, push the discharge column 1429 on one side of the extrusion plate 1426 out of the inside of the connection shell 1421, expose the hole groove outside the discharge column 1429. At the same time, when the air in the central groove 1423 is extruded by the extrusion rod 144, the air is discharged into the inside of the exhaust pipe 1412 through one end of the central groove 1423. At this time, the air flows into the inside of the feeding barrel 152 through the air inlet pipe 154, and extrudes the two piston discs 155. The silicone oil between the two piston discs 155 and the feeding barrel 152 is sent into the inside of the feeding pipe 1411 through the feeding pipe 153, and flows into the inside of the discharge chute 1422 through the second feeding groove 1424, and flows out along the hole groove outside the discharge column 1429. When the silicone oil flows out, it not only improves the lubrication degree of the outer surface of the connection shell 1421, but also can reduce the outer surface temperature of the connection shell 1421, reduce the decomposition of the raw materials. At the same time, by pouring the silicone oil into the mixed raw materials from the position close to the inner wall of the barrel shell 11, pouring the silicone oil close to the inner wall can directly act on the sticking wall area, quickly reduce the friction between the material and the barrel wall of the barrel shell 11, reduce the sticking and accumulation, avoid local overheating. At the same time, compared with the central axis area, the material near the inner wall has worse fluidity and more intense friction. Lubricating this place first can improve the overall stirring resistance and improve the stirring efficiency. Moreover, when the silicone oil is introduced from the position close to the inner wall of the barrel shell 11, it can be quickly brought into the central area by shear force and convection action and mixed with the material. While the extrusion rod 144 extrudes the inner wall of the barrel shell 11, it scrapes the raw materials on the inner wall of the barrel shell 11 to prevent the inner wall of the barrel shell 11 from adsorbing too much raw materials and causing the reduction of the mixing and stirring efficiency. At the same time, another part of the scraping and extrusion mechanism 142 does not contact the inner wall of the barrel shell 11 and only performs the mixing operation. When the extrusion rod 144 does not contact the inner wall of the barrel shell 11, under the action of the second elastic member 1427, the third elastic member 1428 and the discharge chute 1422, the discharge column 1429 is reset to the inside of the connection shell 1421, and at the same time the extrusion rod 144 is also reset. When the extrusion rod 144 is reset, it preferentially sucks the outside air through the one-way valve 156 to supplement the air in the central groove 1423 and the two piston discs 155. At this time, multiple scraping and extrusion mechanisms 142 do not contact the inner wall of the barrel shell 11 and only perform the mixing operation with the raw materials. By intermittently extruding the silicone oil, the silicone oil has time to fully diffuse and penetrate in the cable material. When a certain amount of silicone oil is extruded, under the stirring action, the silicone oil gradually disperses among the materials to form a uniform lubricating film, effectively reducing the friction between the internal molecules of the material, improving the fluidity of the cable material, and improving the stirring uniformity.,

[0024] According to an embodiment of the present invention in combination with Figures 1 - 3 、 Figures 11 - 12It is shown that the feeding assembly 15 includes a connecting block 151. A feeding barrel 152 is fixedly installed at the lower end of the connecting block 151. Two groups of feeding valves 1521 are provided at both ends of the feeding barrel 152. Two groups of feeding pipes 153 penetrate through both ends of the feeding barrel 152. The feeding pipes 153 communicate with the feeding pipe 1411. An air inlet pipe 154 penetrates through the outside of the feeding barrel 152. The air inlet pipe 154 communicates with the exhaust pipe 1412. Two piston disks 155 are arranged inside the feeding barrel 152. The space between the two piston disks 155 communicates with the air inlet pipe 154. A check valve 156 is provided at the lower end of the feeding barrel 152. The air inlet of the check valve 156 is located between the two piston disks 155.

[0025] According to an embodiment of the present invention in combination with Figures 4 - 10 It is shown that a conical shell 143 is fixedly installed at the upper end of the connecting shell 1421. A chute 1431 is provided inside the conical shell 143. A plurality of fourth elastic members 1433 are fixedly installed inside the chute 1431. The upper end of the fourth elastic member 1433 is fixedly installed with a conical scraping block 1432. When the stirring shaft 13 and the scraping assembly 14 rotate, the conical shell 143 at the upper end of the connecting shell 1421 and the conical scraping block 1432 inside it rotate with the stirring shaft 13 to scrape off the raw material adhered to the conical rod 131 rotating on the outside of the stirring shaft 13. When the conical rod 131 comes into contact with the conical scraping block 1432, the conical scraping block 1432 is compressed by the conical rod 131. When the two are separated, the conical scraping block 1432 moves upward under the action of the fourth elastic member 1433 to scrape one side of the conical rod 131. Through the continuous rotation of the conical rod 131, the cleaning of the raw material adhered to the outside of the conical rod 131 is completed, preventing the raw material adhered to the outside of the conical rod 131, reducing the deviation of the center of gravity of the stirring shaft 13 during rotation, improving the stirring efficiency of the device, and reducing the structural damage of the device.

[0026] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A processing device for heat-insulating and flame-retardant high-voltage cable materials, characterized in that: It includes a mixing barrel, at the upper end of which a fixed cover is fixedly installed. At the upper end of the fixed cover, a driving motor is fixedly installed. The outside of the fixed cover is fixed by multiple groups of locking buckles. Inside the fixed cover, a connecting disk is rotatably installed. Inside the connecting disk, a gear ring is fixedly installed. At the center of the gear ring, a large gear is provided. On the outside of the large gear, a small gear is meshed. The small gear is meshed with the gear ring. The upper end of the large gear is fixedly connected to the driving motor. At the lower end of the large gear, a stirring shaft is fixedly installed. On the outside of the stirring shaft, multiple groups of tapered rods are rotatably arranged. The upper end of the stirring shaft penetrates through the connecting disk. At the lower end of the small gear, a scraping component is fixedly installed. The scraping component is in contact with the inner wall of the mixing barrel; The scraping component includes a central shaft. On the outside of the central shaft, multiple groups of scraping and extruding mechanisms are fixedly installed. At the lower end of the central shaft, a feeding component is fixedly installed. The scraping and extruding mechanisms are in contact with the inner wall of the mixing barrel.

2. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 1, characterized in that: The mixing barrel includes a barrel outer shell. At the lower end of the barrel outer shell, multiple groups of support legs are fixedly installed. On the outside of the barrel outer shell, a feeding port is provided. At the lower end of the barrel outer shell, a round hole is opened. The round hole is matched with the central shaft of the scraping component. At the lower end of the barrel outer shell, a discharging port is opened.

3. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 2, characterized in that: The lower end of the scraping component penetrates through the barrel outer shell and fixedly installs a feeding component.

4. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 3, characterized in that: Inside the central shaft, two groups of feeding pipes are opened. On the outside of the central shaft, two groups of feeding grooves one are opened. The feeding groove one is matched with the feeding pipe. The feeding groove one is communicated with the scraping and extruding mechanism.

5. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 4, wherein: Between the two groups of feeding pipes, an exhaust pipe is provided. On the outside of the central shaft, an exhaust groove is opened. The exhaust groove is matched with the exhaust pipe. The exhaust groove is communicated with the scraping and extruding mechanism.

6. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 5, wherein: The scraping and extruding mechanism includes a connecting shell. The inside of the connecting shell is divided into three parts, namely a central groove and discharging grooves on both sides. At one end of the discharging groove close to the central shaft, a feeding groove two is opened. The feeding groove two is matched with the feeding pipe. The central groove is matched with the exhaust groove.

7. The processing device for heat-insulating and flame-retardant high-voltage cable material according to claim 6, characterized in that: One end of the connecting shell is slidably provided with a pressing rod, which is matched with the central groove. Limit rods are fixedly installed on both the upper and lower sides of the pressing rod. An elastic member I is arranged outside the limit rods. Limit grooves are opened at both the upper and lower ends of the inner wall of the connecting shell, and the limit grooves are matched with the limit rods. One end of the elastic member I is fixed on the limit rod, and the other end of the elastic member I is fixed on the inner wall of the limit groove. Two sets of pressing discs are slidably arranged inside the connecting shell. The two pressing discs are slidably connected to the connecting shell through elastic members II on the sides away from each other. The sides of the two pressing discs away from each other penetrate through the central groove of the connecting shell and are fixedly provided with pressing plates. The pressing plates are located inside the feeding groove II. Multiple elastic members III are arranged on the side of the pressing plate close to the pressing disc. One end of the elastic member III is fixedly connected to the inner wall of the feeding groove II. Multiple discharging columns are fixedly installed on the side of the pressing plate away from the pressing disc. Multiple hole grooves are opened on the outer side of the discharging columns. The discharging columns penetrate through one side of the connecting shell and are slidably connected thereto.

8. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 5, wherein: The feeding assembly includes a connecting block. A feeding barrel is fixedly installed at the lower end of the connecting block. Two sets of feeding pipes are penetrated and opened at both ends of the feeding barrel. The feeding pipes are communicated with the conveying pipes. An air inlet pipe is penetrated and opened on the outer side of the feeding barrel. The air inlet pipe is communicated with the exhaust pipe. Two sets of piston discs are arranged inside the feeding barrel. The air inlet pipe is communicated between the two piston discs. A one-way valve is arranged at the lower end of the feeding barrel. The air inlet of the one-way valve is located between the two piston discs.

9. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 8, wherein: Two sets of feeding valves are opened at both ends of the feeding barrel.

10. The heat-insulating and flame-retardant high-voltage cable material processing device according to claim 7, characterized in that: A conical shell is fixedly installed at the upper end of the connecting shell. A sliding groove is opened inside the conical shell. Multiple elastic members IV are fixedly installed inside the sliding groove. A conical scraping block is fixedly installed at the upper end of the elastic members IV.

Images