Cable insulation layer plastic extruding machine

Abstract

The utility model relates to the technical field of plastic extruding machines, and discloses a cable insulation layer plastic extruding machine which comprises a bottom plate, a shell and a feeding pipe are fixedly connected to the top of the bottom plate, a cooling box is fixedly connected to the outer side of the end of the bottom plate, fan shells are fixedly connected to the inner sides of the two ends of the cooling box, and heat dissipation assemblies are arranged on the inner sides of the two fan shells. The shell is fixedly connected to the outer side of the feeding pipe, a stirring tank is fixedly connected to the inner side of the end of the feeding pipe, and a stirring assembly is arranged on the inner side of the stirring tank. According to the utility model, through meshing transmission of the gear III and the gear IV, strict synchronization of the speeds of the upper and lower groups of belts is forcibly realized, and slipping or deviation of a cable caused by speed difference is avoided, so that the position precision and uniformity of subsequent coating of an insulating layer are ensured. The gear transmission system is compact in layout and small in power transmission loss, and ensures that the cable moves along a straight line at a constant speed in cooperation with the guiding effect of the fixing plate, and manual calibration cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of extrusion machine technology, and in particular to a cable insulation layer extrusion machine. Background Technology

[0002] The cable insulation extruder is a key specialized piece of equipment in the cable production process. It is mainly used to uniformly and tightly coat the conductor surface with insulating material through the extrusion process to form an insulation layer, thereby giving the cable its core properties such as electrical insulation and mechanical protection.

[0003] Currently, cable insulation extrusion machines typically transport cables manually. The conveying speed and direction can be adjusted at any time according to cable specifications, length, or production needs. In case of emergencies such as cable jamming or tangling, the response is rapid, and manual intervention can be carried out immediately to avoid equipment failure or material waste.

[0004] While manual cable transport offers high flexibility, it relies on manual labor, resulting in slow and inconsistent transport speeds, especially during long-distance or heavy cable transport. This can easily lead to worker fatigue and reduce production efficiency. Furthermore, the unstable force control during manual transport can cause fluctuations in cable transport speed, affecting the uniformity and positional accuracy of the insulation layer coating. Therefore, a cable insulation extrusion machine is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cable insulation extrusion machine, which aims to improve the problem that the existing technology cannot effectively and stably guarantee the straight and uniform speed of the cable.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cable insulation extruder includes a base plate, a housing and a feed pipe fixedly connected to the top of the base plate, a cooling box fixedly connected to the outer side of the end of the base plate, fan housings fixedly connected to the inner sides of both ends of the cooling box, heat dissipation components provided inside the two fan housings, the housing fixedly connected to the outer side of the feed pipe, a mixing tank fixedly connected to the inner side of the end of the feed pipe, a mixing component provided inside the mixing tank, a heating component provided between the housing and the feed pipe, a feeding component provided inside the feed pipe, a fixing plate fixedly connected to the inner side of the end of the base plate, two automatic cable transport components provided on the side of the fixing plate, the two automatic cable transport components being arranged vertically on the outer side of the fixing plate, and a drive component provided on the other side of the fixing plate.

[0008] The automatic cable transport assembly includes two gears, both of which are rotatably connected to the side of the fixed plate. Multiple gears are rotatably connected to the outside of the fixed plate. One of the gears is located at the end away from the two gears, and the other multiple gears are rotatably connected between the two gears. A belt is fitted on the outside of the multiple gears and the two gears.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a gear four, which is rotatably connected to the outside of the fixed plate. Two gears three are rotatably connected to the outside of the fixed plate. The two gears three are meshed on both sides of the gear four. The two gears three are respectively connected to one of the gears one in the two automatic cable transport assemblies. A housing is fixedly connected to the outside of the fixed plate. Both gears three and gear four are rotatably connected to the inside of the gear two. A drive motor three is fixedly connected to the outside of the gear two. One of the gears three is fixedly connected to the output end of the drive motor three.

[0011] As a further description of the above technical solution:

[0012] The stirring assembly includes a connecting rod, which is rotatably connected to the inner side of the stirring tank. Multiple stirring blades are fixedly connected to the outer side of the connecting rod, and a scraper is fixedly connected to the outer side of the connecting rod. The scraper is slidably connected to the inner side of the stirring tank. A drive motor is fixedly connected to the top of the stirring tank, and the connecting rod is fixedly connected to the output end of the drive motor. A feed hopper is fixedly connected to the inner side of the end of the stirring tank.

[0013] As a further description of the above technical solution:

[0014] The material conveying assembly includes an auger assembly, which is rotatably connected to the inner side of the feed pipe. A second drive motor is fixedly connected to the outer side of the end of the feed pipe, and the end of the auger assembly is fixedly connected to the output end of the second drive motor.

[0015] As a further description of the above technical solution:

[0016] The heating assembly includes a heating tube, which is wound around the outside of the feed tube. Both ends of the heating tube are fixedly connected to the side of the housing. An input end is provided on the side of the housing, and both ends of the heating tube are located inside the input end.

[0017] As a further description of the above technical solution:

[0018] The heat dissipation assembly includes a bracket, which is fixedly connected to the fan housing. A fan is disposed inside the bracket. A dust collection plate and a filter screen are fixedly connected to the inner side of one end of the fan housing. The filter screen is disposed outside the dust collection plate. A railing is fixedly connected to the inner side of the other end of the fan housing.

[0019] As a further description of the above technical solution:

[0020] A discharge pipe is fixedly connected to the inner side of the end of the feed pipe away from the mixing tank. An extrusion die is fixedly connected to the bottom of the discharge pipe. The extrusion die is fixedly connected to the side of the base plate. Limiting blocks are fixedly connected to both sides of the fixed plate. A cable body is provided inside the cooling box, inside the extrusion die and inside the two limiting blocks. The cable body is also provided on the sides of the two belts.

[0021] As a further description of the above technical solution:

[0022] Ventilation openings are provided on the inner sides of both ends of the cooling box.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the meshing transmission of gear three and gear four forces the upper and lower belts to achieve strict synchronization of speeds, preventing cable slippage or deviation due to speed differences, thereby ensuring the positional accuracy and uniformity of subsequent insulation layer coating. The gear transmission system has a compact layout and low power transmission loss. Combined with the guiding effect of the fixed plate, it ensures that the cable moves at a uniform speed along a straight line, reducing manual calibration costs.

[0025] 2. In this utility model, the drive motor drives the connecting rod and multiple stirring blades to rotate together inside the mixing tank, thereby achieving full mixing of the insulating material. At the same time, the scraper removes material from the inside of the mixing tank, preventing material accumulation in the mixing components from hindering effective cleaning of the inside of the mixing tank. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a cable insulation layer extruder proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the cable body structure of a cable insulation extruder proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the heating tube of a cable insulation extruder proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the auger assembly of a cable insulation extruder proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of a limiting block for a cable insulation extruder proposed in this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the railing of a cable insulation extruder proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the extrusion die of a cable insulation layer extruder proposed in this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of gear three in a cable insulation extruder proposed in this utility model.

[0034] Legend:

[0035] 1. Outer shell; 2. Feed pipe; 3. Mixing tank; 4. Feed hopper; 5. Cooling box; 6. Ventilation opening; 7. Fan shell; 8. Extrusion die; 9. Limiting block; 10. Belt; 11. Base plate; 12. Cable body; 13. Screw assembly; 14. Heating tube; 15. Mixing blade; 16. Connecting rod; 17. Scraper; 18. Drive motor one; 19. Drive motor two; 20. Input end; 21. Feed pipe; 22. Gear one; 23. Gear two; 24. Drive motor three; 25. Gear three; 26. Gear four; 27. Fixing plate; 28. Dust collection plate; 29. ​​Filter screen; 30. Bracket; 31. Fan; 32. Railing; 33. Shell. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 2 and Figure 5An embodiment of this utility model provides a cable insulation extrusion machine, including a base plate 11, a housing 1 and a feed pipe 2 fixedly connected to the top of the base plate 11, a cooling box 5 fixedly connected to the outer side of the end of the base plate 11, fan housings 7 fixedly connected to the inner sides of both ends of the cooling box 5, heat dissipation components provided inside the two fan housings 7, the housing 1 fixedly connected to the outer side of the feed pipe 2, a mixing tank 3 fixedly connected to the inner side of the end of the feed pipe 2, a mixing component provided inside the mixing tank 3, a heating component provided between the housing 1 and the feed pipe 2, a feeding component provided inside the feed pipe 2, a fixing plate 27 fixedly connected to the inner side of the end of the base plate 11, two automatic cable transport components provided on the side of the fixing plate 27, the two automatic cable transport components being arranged vertically on the outer side of the fixing plate 27, and a drive component provided on the other side of the fixing plate 27;

[0038] The automatic cable transport assembly includes two gears 22, both rotatably connected to the side of a fixed plate 27. Multiple gears 23 are rotatably connected to the outside of the fixed plate 27, with one gear 23 located at the end furthest from the two gears 22, and the other gears 23 rotatably connected between the two gears 22. A belt 10 is fitted around the outside of the gears 23 and the two gears 22. When the gears 22 rotate, the belts 10 and the gears 23 form a transmission system. The upper and lower belts 10 clamp the cable body 12, using friction to drive the cable to move at a constant speed along the fixed plate 27. This drives the cable body 12 into the extrusion die 8, where the material output through the feed pipe 21 forms an insulation layer on the outside of the cable body 12.

[0039] Reference Figure 5 and Figure 8 The drive assembly includes gear 4 26, which is rotatably connected to the outside of fixed plate 27. Two gears 3 25 are rotatably connected to the outside of fixed plate 27, meshing with both sides of gear 4 26. Each gear 3 25 is connected to one of the gears 1 22 in one of the two automatic cable transport assemblies. A housing 33 is fixedly connected to the outside of fixed plate 27. Both gears 3 25 and gear 4 26 are rotatably connected to the inside of gear 2 23. A drive motor 3 24 is fixedly connected to the outside of gear 2 23, with one gear 3 25 fixedly connected to the output end of drive motor 3 24. First, drive motor 3 24 is started, causing gear 3 25 connected to its output end to rotate. Since both gears 3 25 mesh with gear 4 26 and are respectively connected to gears 1 22 in the upper and lower sets of automatic cable transport assemblies, gear 4 26 synchronously drives the two gears 3 25 to rotate in opposite directions, preparing for insulation layer coating.

[0040] Reference Figure 1 and Figure 2The mixing assembly includes a connecting rod 16, which is rotatably connected to the inner side of the mixing tank 3. Multiple stirring blades 15 are fixedly connected to the outer side of the connecting rod 16, and a scraper 17 is fixedly connected to the outer side of the connecting rod 16. The scraper 17 is slidably connected to the inner side of the mixing tank 3. A drive motor 18 is fixedly connected to the top of the mixing tank 3, and the connecting rod 16 is fixedly connected to the output end of the drive motor 18. A feed hopper 4 is fixedly connected to the inner side of the end of the mixing tank 3. Insulating material enters the mixing tank 3 through the feed hopper 4. The drive motor 18 starts, driving the connecting rod 16 to rotate. The stirring blades 15 on the connecting rod 16 stir the material, achieving uniform mixing. Simultaneously, the scraper 17 slides close to the inner wall of the mixing tank 3, scraping off any adhering material to prevent localized accumulation and ensure uniform mixing of the raw materials, providing a uniform and stable material for subsequent processes.

[0041] Reference Figure 2 , Figure 3 and Figure 4 The material conveying assembly includes an auger assembly 13, which is rotatably connected to the inner side of the feed pipe 2. A drive motor 19 is fixedly connected to the outer side of the end of the feed pipe 2, and the end of the auger assembly 13 is fixedly connected to the output end of the drive motor 19. The mixed material enters the feed pipe 2, and the drive motor 19 drives the auger assembly 13 to rotate, using the spiral propulsion force to convey the material to the end of the feed pipe 2. The heating assembly includes a heating tube 14, which is wound around the outer side of the feed pipe 2. Both ends of the heating tube 14 are fixedly connected to the side of the outer casing 1. An input end 20 is provided on the side of the outer casing 1, and both ends of the heating tube 14 are located inside the input end 20. The heating tube 14, wound around the outer side of the feed pipe 2, is energized through the input end 20 to heat the material, gradually raising its temperature to a molten state. By controlling the temperature of different sections of the heating tube 14, a smooth transition of the material from a solid to a molten state is achieved, avoiding localized overheating and degradation.

[0042] Reference Figure 1 , Figure 2 and Figure 6 The heat dissipation assembly includes a bracket 30, which is fixedly connected to the fan housing 7. A fan 31 is installed inside the bracket 30. A dust collection plate 28 and a filter 29 are fixedly connected to the inner side of one end of the fan housing 7, with the filter 29 located on the outer side of the dust collection plate 28. A railing 32 is fixedly connected to the inner side of the other end of the fan housing 7. When the fan 31 inside the fan housing 7 at both ends of the cooling box 5 is activated, airflow is generated. The air first passes through the dust collection plate 28 to adsorb dust particles, and then is further filtered through the filter 29. The clean airflow blows towards the cable, accelerating the dissipation of heat from the surface of the insulation layer, allowing it to quickly solidify and set. The cooled air is discharged from the railing 32 at the other end of the fan housing 7. The railing 32 prevents foreign objects from entering, ensuring the safe operation of the equipment. Ventilation openings 6 are provided on the inner sides of both ends of the cooling box 5.

[0043] Reference Figure 1 , Figure 2 and Figure 7 A discharge pipe 21 is fixedly connected to the inner side of the end of the feed pipe 2 furthest from the mixing tank 3. An extrusion die 8 is fixedly connected to the bottom of the discharge pipe 21. The extrusion die 8 is fixedly connected to the side of the base plate 11. Limiting blocks 9 are fixedly connected to both sides of the fixing plate 27. Molten insulating material flows into the extrusion die 8 through the discharge pipe 21 and forms a tubular insulating layer through the annular gap of the die, which is evenly wrapped around the cable body 12 passing through the center of the die. The limiting blocks 9 at both ends of the fixing plate 27 calibrate the cable path to ensure that the insulation layer is accurately positioned and of uniform thickness. The cable body 12 is provided inside the cooling box 5, inside the extrusion die 8, and inside the two limiting blocks 9. The cable body 12 is also provided on the sides of the two belts 10.

[0044] Working principle: First, drive motor 24 is started, which drives gear 25 connected to its output end to rotate. Since both gears 25 mesh with gear 26 and are connected to gears 22 of the upper and lower automatic cable transport components respectively, gear 26 synchronously drives the two gears 25 to rotate in opposite directions. When gear 22 rotates, it forms a transmission system with multiple gears 23 through the outer belt 10. The upper and lower belts 10 clamp the cable body 12, and the friction force drives the cable to move at a constant speed along the direction of the fixed plate 27. This drives the cable body 12 into the extrusion die 8, and the material output through the feed pipe 21 forms an insulation layer on the outside of the cable body 12.

[0045] Insulating material falls into mixing tank 3 through feed hopper 4. After drive motor 18 starts, it drives connecting rod 16 to rotate, causing the outer stirring blades 15 to stir and mix the material. At the same time, scraper 17 on the outer side of connecting rod 16 slides close to the inner wall of mixing tank 3, scraping off the material adhering to the tank wall to avoid local overheating or accumulation. Drive motor 2 19 drives auger assembly 13 to rotate in feed pipe 2, using the propulsive force of the spiral blades to transport the material in mixing tank 3 to the end of feed pipe 2. During transportation, heating pipe 14 generates heat after being connected to power through input terminal 20. The heat is conducted through the pipe wall to the inside of feed pipe 2, causing the insulating material to gradually heat up to a molten state. Then, the molten insulating material is pushed by auger assembly 13 through discharge pipe 21 into extrusion die 8 to form an insulating layer on the outside of cable body 12.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable insulation extrusion machine, comprising a base plate (11), characterized in that: The bottom plate (11) is fixedly connected to the top of the outer shell (1) and the feed pipe (2). The bottom plate (11) is fixedly connected to the outer side of the end of the outer shell (11). The cooling box (5) is fixedly connected to the inner side of both ends of the cooling box (5). The two fan shells (7) are provided with heat dissipation components inside. The outer shell (1) is fixedly connected to the outer side of the feed pipe (2). The feed pipe (2) is fixedly connected to the inner side of the end of the inner shell (3). The mixing tank (3) is provided with a mixing component inside. The outer shell (1) and the feed pipe (2) are provided with a heating component. The feed pipe (2) is provided with a material conveying component inside. The bottom plate (11) is fixedly connected to the inner side of the end of the inner shell (27). The fixed plate (27) is provided with two automatic cable transport components on the side. The two automatic cable transport components are arranged vertically on the outer side of the fixed plate (27). The fixed plate (27) is provided with a drive component on the other side. The automatic cable transport assembly includes two gears (22), both of which are rotatably connected to the side of the fixed plate (27). A plurality of gears (23) are rotatably connected to the outside of the fixed plate (27). One of the gears (23) is located at the end away from the two gears (22), and the other plurality of gears (23) are rotatably connected between the two gears (22). A belt (10) is fitted on the outside of the plurality of gears (23) and the two gears (22).

2. The cable insulation extruder according to claim 1, characterized in that: The drive assembly includes a gear four (26), which is rotatably connected to the outside of the fixed plate (27). Two gear threes (25) are rotatably connected to the outside of the fixed plate (27). The two gear threes (25) are meshed on both sides of the gear four (26). The two gear threes (25) are respectively connected to one of the gear one (22) in the two automatic cable transport assemblies. A housing (33) is fixedly connected to the outside of the fixed plate (27). The two gear threes (25) and the gear four (26) are rotatably connected to the inside of the gear two (23). A drive motor three (24) is fixedly connected to the outside of the gear two (23). One of the gear threes (25) is fixedly connected to the output end of the drive motor three (24).

3. The cable insulation extruder according to claim 1, characterized in that: The stirring assembly includes a connecting rod (16), which is rotatably connected to the inner side of the stirring tank (3). Multiple stirring blades (15) are fixedly connected to the outer side of the connecting rod (16). A scraper (17) is fixedly connected to the outer side of the connecting rod (16). The scraper (17) is slidably connected to the inner side of the stirring tank (3). A drive motor (18) is fixedly connected to the top of the stirring tank (3). The connecting rod (16) is fixedly connected to the output end of the drive motor (18). A feed hopper (4) is fixedly connected to the inner side of the end of the stirring tank (3).

4. The cable insulation extruder according to claim 1, characterized in that: The material conveying assembly includes an auger assembly (13), which is rotatably connected to the inside of the feed pipe (2). A second drive motor (19) is fixedly connected to the outside of the end of the feed pipe (2), and the end of the auger assembly (13) is fixedly connected to the output end of the second drive motor (19).

5. A cable insulation extruder according to claim 1, characterized in that: The heating assembly includes a heating tube (14), which is wound around the outside of the feed tube (2). Both ends of the heating tube (14) are fixedly connected to the side of the outer shell (1). An input end (20) is provided on the side of the outer shell (1), and both ends of the heating tube (14) are located inside the input end (20).

6. The cable insulation extruder according to claim 1, characterized in that: The heat dissipation assembly includes a bracket (30), which is fixedly connected to the fan housing (7). A fan (31) is provided inside the bracket (30). A dust collection plate (28) and a filter (29) are fixedly connected to the inner side of one end of the fan housing (7). The filter (29) is provided outside the dust collection plate (28). A railing (32) is fixedly connected to the inner side of the other end of the fan housing (7).

7. A cable insulation extruder according to claim 1, characterized in that: The feed pipe (2) is fixedly connected to the inner side of the end away from the mixing tank (3) by a discharge pipe (21). The bottom of the discharge pipe (21) is fixedly connected to an extrusion die (8). The extrusion die (8) is fixedly connected to the side of the base plate (11). Limiting blocks (9) are fixedly connected to both sides of the fixing plate (27). Cable bodies (12) are provided inside the cooling box (5), inside the extrusion die (8) and inside the two limiting blocks (9). The cable bodies (12) are also provided on the sides of the two belts (10).

8. A cable insulation extruder according to claim 1, characterized in that: Ventilation openings (6) are provided on the inner sides of both ends of the cooling box (5).

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