Extrusion device for manufacturing flame-retardant charging pile cable

Abstract

The application belongs to the technical field of extrusion devices, and discloses a flame-retardant charging pile cable manufacturing extrusion device, which comprises an extruder and a feeding assembly arranged on the extruder. The extruder is fixed with a mounting frame. The mounting frame is fixed with a mounting seat. An outer mold is arranged on the side wall of the mounting seat. An inner mold located in the outer mold is fixed on the mounting seat. The inner mold is a hollow structure with open ends. Threaded grooves are formed in the side wall of the mounting seat and are in threaded connection with the outer mold. A wire conveying groove is formed in the mounting seat and is in communication with the inner mold. The axis of the outer mold, the axis of the wire conveying groove and the axis of the inner mold are coincident. The feeding assembly is used for feeding rubber paste with a flame-retardant effect into the outer mold. The application sets the outer mold, the inner mold and the threaded grooves, thereby eliminating the need to replace the whole extrusion mechanism in the prior art, reducing the labor intensity and improving the efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of extrusion equipment technology, and in particular to an extrusion equipment for manufacturing flame-retardant charging pile cables. Background Technology

[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of conductors. Cables are classified according to their function into power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, and mining cables, etc.

[0003] Chinese utility model patent CN211404171U discloses an environmentally friendly flame-retardant charging pile cable manufacturing extrusion device, which includes a fixed frame, a first extrusion mechanism, a second extrusion mechanism, and an extrusion mechanism. Two sets of the first extrusion mechanisms are arranged above the extrusion mechanism, and a second extrusion mechanism is arranged on one side of each set of the first extrusion mechanisms. The first extrusion mechanism, the second extrusion mechanism, and the extrusion mechanism are fixed on the fixed frame. The extrusion mechanism includes an extrusion pipe, a cable inlet, a cable outlet, a discharge pipe, a pull rod, and a pull ring.

[0004] In actual production, depending on factors such as voltage level, operating environment, and mechanical strength requirements, the same type of cable requires a rubber outer layer of different thicknesses in different scenarios. When processing rubber outer layers of other thicknesses, the entire extrusion mechanism needs to be replaced, which not only increases labor intensity but also hinders the improvement of equipment efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an extrusion device for manufacturing flame-retardant charging pile cables.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a flame-retardant charging pile cable manufacturing extrusion device, including an extruder and a feeding assembly disposed on the extruder, a mounting frame fixed on the extruder, a mounting base fixed on the mounting frame, an outer mold disposed on the side wall of the mounting base, an inner mold located inside the outer mold fixed on the mounting base, the inner mold being a hollow structure with openings at both ends, a threaded groove for threaded connection with the outer mold being provided on the side wall of the mounting base, a wire feeding groove communicating with the inner mold being provided on the mounting base, the axis of the outer mold, the axis of the wire feeding groove, and the axis of the inner mold all coincide, and the feeding assembly is used to supply a rubber slurry with flame-retardant effect into the outer mold.

[0007] By adopting the above technical solution, during use, the inner layer of the cable to be processed is first passed through the feed trough, inner mold, and outer mold in sequence. Then, rubber slurry is extruded through an extruder and conveyed to the outer mold. Next, the slurry flows through the gap between the outer mold and the inner mold to the surface of the inner layer of the cable. At this time, the inner layer of the cable to be processed can be transported at a constant speed and processed by existing conveying equipment. In addition, by rotating the outer mold, since the outer mold is threadedly connected to the threaded groove, the size of the gap between the outer mold and the inner mold can be adjusted by rotating the outer mold, while the conveying speed of the inner layer of the cable remains constant. This achieves the purpose of processing rubber outer layers of various thicknesses, eliminating the need to replace the entire extrusion mechanism required by existing technologies. This not only reduces labor intensity but also improves the efficiency of the device.

[0008] Furthermore, the cable tray is provided with a plurality of limiting plates symmetrically arranged about the axis of the cable tray, and the mounting base is provided with a displacement mechanism for driving the plurality of limiting plates to move synchronously.

[0009] By adopting the above technical solution and setting the limiting plate, the stability of the inner layer of the cable during movement is improved.

[0010] Furthermore, the displacement mechanism includes a connecting component, which includes a connecting rod fixed to the limiting plate. The connecting rod passes through the mounting base and is slidably engaged. The connecting component also includes an adjusting rod disposed on the connecting rod. The number of connecting rods, the number of adjusting rods, and the number of limiting plates are all equal and their positions correspond one-to-one. The displacement mechanism also includes a displacement component for driving multiple connecting rods to move.

[0011] By adopting the above technical solution, multiple connecting rods are driven to move through the displacement component, thereby causing the limiting plates connected to the connecting rods to move. This allows for adjustment of the distance between the multiple limiting plates to accommodate the inner layer of cables with various outer diameters, thus improving the applicability of the device.

[0012] Furthermore, the displacement assembly includes a turntable sleeved on and rotatably connected to the mounting base, an electro-hydraulic push rod fixed on the mounting frame, and a connecting block rotatably mounted on the end of the push rod of the electro-hydraulic push rod. The end of the connecting block away from the electro-hydraulic push rod is rotatably connected to the turntable. An adjustment groove is provided through the turntable to slide with the adjustment rod. The adjustment groove is eccentrically set with the turntable. The number of adjustment grooves is equal to the number of adjustment rods and their positions correspond one-to-one.

[0013] By adopting the above technical solution, after the electro-hydraulic push rod is working, its push rod end extends, thereby causing the connecting block fixed to the push rod end of the electro-hydraulic push rod to move. The connecting block drives the turntable to rotate. Due to the sliding fit between the adjusting groove and the adjusting rod, and the eccentric setting between the adjusting groove and the turntable, the connecting rod connected to the adjusting rod and the limiting plate connected to the connecting rod can both move, so as to ensure the normal operation of the device.

[0014] Furthermore, rollers are rotatably mounted on the sidewalls of the multiple limiting plates that are close to each other.

[0015] By adopting the above technical solution, the roller configuration reduces the friction between the inner layer of the cable and the limiting plate during transportation.

[0016] Furthermore, an assist rod is fixed to the side wall of the outer mold, and an anti-slip strip is fixed to the side wall of the assist rod.

[0017] By adopting the above technical solution, the setting of the assist rod facilitates the rotation of the outer mold.

[0018] Furthermore, the adjusting rod is rotatably mounted on the connecting rod.

[0019] By adopting the above technical solution, the friction between the adjusting rod and the turntable during transportation is reduced.

[0020] Furthermore, the feeding assembly includes a feeding pipe fixed and connected to the discharge end of the extruder, and the mounting base is provided with a feeding chamber connected to the feeding pipe. The feeding assembly also includes a feeding pipe fixed to the mounting base and connected to the feeding chamber, and the feeding pipe extends into the outer mold.

[0021] By adopting the above technical solution, the extruder discharges the rubber slurry from its discharge end into the conveying pipe, then from the conveying pipe into the conveying chamber, then from the conveying chamber into the feeding pipe, and finally from the feeding pipe into the outer mold, so as to ensure the normal operation of the device.

[0022] In summary, the present invention has the following beneficial effects: In this application, by setting an outer mold, an inner mold and a threaded groove, the existing technology requires the replacement of the entire extrusion mechanism, which not only reduces labor intensity but also improves the efficiency of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram illustrating the connection structure between the limiting plate and the roller in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram illustrating the connection structure between the mounting base and the outer mold in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the mounting base and the connecting rod.

[0028] In the diagram: 1. Extruder; 2. Feeding assembly; 21. Feeding pipe; 22. Feeding pipe; 3. Mounting frame; 4. Mounting base; 5. Outer mold; 6. Inner mold; 7. Threaded groove; 8. Feeding groove; 9. Limiting plate; 10. Displacement mechanism; 101. Connecting assembly; 1011. Connecting rod; 1012. Adjusting rod; 102. Displacement assembly; 1021. Turntable; 1022. Electro-hydraulic push rod; 1023. Connecting block; 1024. Adjusting groove; 11. Roller; 12. Assist rod; 13. Feeding chamber. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-5 As shown in the figure, this application discloses an extrusion apparatus for manufacturing flame-retardant charging pile cables, including an extruder 1, a feeding assembly 2, and a displacement mechanism 10. A mounting frame 3 is fixed on the extruder 1. A mounting base 4 is fixed on the mounting frame 3, and an outer mold 5 is provided on the side wall of the mounting base 4. An inner mold 6 is fixed on the mounting base 4, located inside the outer mold 5. The inner mold 6 is a hollow structure with openings at both ends. A threaded groove 7, which is threadedly connected to the outer mold 5, is provided on the side wall of the mounting base 4. A cable delivery groove 8, which communicates with the inner mold 6, is provided on the mounting base 4. The axis of the outer mold 5, the axis of the cable delivery groove 8, and the axis of the inner mold 6 all coincide. In operation, the inner layer of the cable to be processed is first passed through the feed trough 8, the inner mold 6, and the outer mold 5 in sequence. Then, the rubber slurry is extruded through the extruder 1 and conveyed to the outer mold 5. The slurry then flows through the gap between the outer mold 5 and the inner mold 6 to the surface of the inner layer of the cable. At this point, the inner layer of the cable to be processed can be transported at a constant speed and processed by the existing conveying equipment. In addition, by rotating the outer mold 5, since the outer mold 5 is threadedly connected to the threaded groove 7, the size of the gap between the outer mold 5 and the inner mold 6 can be adjusted by rotating the outer mold 5, while the conveying speed of the inner layer of the cable remains constant. This achieves the purpose of processing rubber outer layers of various thicknesses, eliminating the need to replace the entire extruder 1 structure as required by the existing technology. This not only reduces labor intensity but also improves the efficiency of the device.

[0031] The feeding assembly 2 is mounted on the extruder 1 and is used to supply flame-retardant rubber slurry into the outer mold 5. The feeding assembly 2 includes a conveying pipe 21 and a feeding pipe 22. The conveying pipe 21 is fixed and connected to the discharge end of the extruder 1. A conveying chamber 13, connected to the conveying pipe 21, is provided within the mounting base 4. The feeding pipe 22 is fixed to the mounting base 4 and connected to the conveying chamber 13, extending into the outer mold 5. The extruder 1 discharges the rubber slurry from its discharge end into the conveying pipe 21, then from the conveying pipe 21 into the conveying chamber 13, then from the conveying chamber 13 into the feeding pipe 22, and finally from the feeding pipe 22 into the outer mold 5, ensuring the normal operation of the device.

[0032] Multiple limiting plates 9 are symmetrically arranged about the axis of the cable trough 8. The limiting plates 9 improve the stability of the inner layer of the cable during movement.

[0033] A displacement mechanism 10 is mounted on the mounting base 4 and is used to drive multiple limiting plates 9 to move synchronously. The displacement mechanism 10 includes a connecting component 101 and a displacement component 102. The connecting component 101 includes a connecting rod 1011 and an adjusting rod 1012. The connecting rod 1011 is fixed to the limiting plate 9 and passes through the mounting base 4, where it slides. The adjusting rod 1012 is mounted on the connecting rod 1011. The number of connecting rods 1011, the number of adjusting rods 1012, and the number of limiting plates 9 are all equal and their positions correspond one-to-one. By driving the multiple connecting rods 1011 to move through the displacement component 102, the limiting plates 9 connected to the connecting rods 1011 move, thereby adjusting the distance between the multiple limiting plates 9 to accommodate the inner layer of cables with various outer diameters, thus improving the applicability of the device.

[0034] The displacement assembly 102 is used to drive multiple connecting rods 1011 to move. The displacement assembly 102 includes a turntable 1021, an electro-hydraulic push rod 1022, and a connecting block 1023. The turntable 1021 is sleeved on the mounting base 4 and rotatably connected. An adjustment groove 1024 is provided through the turntable 1021 to slide with the adjustment rod 1012. The adjustment groove 1024 is eccentrically positioned with the turntable 1021. The number of adjustment grooves 1024 is equal to the number of adjustment rods 1012, and their positions correspond one-to-one. The electro-hydraulic push rod 1022 is fixed on the mounting bracket 3. The connecting block 1023 is rotatably mounted on the push rod end of the electro-hydraulic push rod 1022. The end of the connecting block 1023 away from the electro-hydraulic push rod 1022 is rotatably connected to the turntable 1021. After the electro-hydraulic push rod 1022 is activated, its push rod end extends, thereby causing the connecting block 1023, which is fixed to the push rod end of the electro-hydraulic push rod 1022, to move. The connecting block 1023 drives the turntable 1021 to rotate. Since the adjusting groove 1024 is in sliding fit with the adjusting rod 1012 and the adjusting groove 1024 is eccentrically set with the turntable 1021, the connecting rod 1011 connected to the adjusting rod 1012 and the limiting plate 9 connected to the connecting rod 1011 can both move to ensure the normal operation of the device.

[0035] Rollers 11 are rotatably mounted on the side walls of multiple limiting plates 9 that are close to each other. The rollers 11 reduce the friction between the inner layer of the cable and the limiting plates 9 during transportation.

[0036] An assist rod 12 is fixed to the side wall of the outer mold 5, and an anti-slip strip is fixed to the side wall of the assist rod 12. The assist rod 12 is designed to facilitate the rotation of the outer mold 5.

[0037] The adjusting rod 1012 is rotatably mounted on the connecting rod 1011. This reduces the friction between the adjusting rod 1012 and the turntable 1021 during transport.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An extrusion apparatus for manufacturing flame-retardant charging pile cables, comprising an extruder (1) and a feeding assembly (2) disposed on the extruder (1), characterized in that: The extruder (1) is fixed with a mounting frame (3), and a mounting base (4) is fixed on the mounting frame (3). An outer mold (5) is provided on the side wall of the mounting base (4), and an inner mold (6) located inside the outer mold (5) is fixed on the mounting base (4). The inner mold (6) is a hollow structure with openings at both ends. A threaded groove (7) is provided on the side wall of the mounting base (4) to be threadedly connected to the outer mold (5). A wire feeding groove (8) is provided on the mounting base (4) to communicate with the inner mold (6). The axis of the outer mold (5), the axis of the wire feeding groove (8), and the axis of the inner mold (6) all coincide. The feeding assembly (2) is used to supply the outer mold (5) with a flame-retardant rubber slurry.

2. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 1, characterized in that: The cable tray (8) is provided with a plurality of limiting plates (9) symmetrically arranged about the axis of the cable tray (8), and the mounting base (4) is provided with a displacement mechanism (10) for driving the plurality of limiting plates (9) to move synchronously.

3. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 2, characterized in that: The displacement mechanism (10) includes a connecting component (101), which includes a connecting rod (1011) fixed on a limiting plate (9). The connecting rod (1011) passes through the mounting base (4) and is slidably engaged. The connecting component (101) also includes an adjusting rod (1012) disposed on the connecting rod (1011). The number of connecting rods (1011), the number of adjusting rods (1012), and the number of limiting plates (9) are all equal and their positions correspond one-to-one. The displacement mechanism (10) also includes a displacement component (102) for driving multiple connecting rods (1011) to move.

4. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 3, characterized in that: The displacement assembly (102) includes a turntable (1021) sleeved on the mounting base (4) and rotatably connected, an electric hydraulic push rod (1022) fixed on the mounting frame (3), and a connecting block (1023) rotatably mounted on the push rod end of the electric hydraulic push rod (1022). The end of the connecting block (1023) away from the electric hydraulic push rod (1022) is rotatably connected to the turntable (1021). An adjustment groove (1024) is provided through the turntable (1021) and slides with the adjustment rod (1012). The adjustment groove (1024) is eccentrically set with the turntable (1021). The number of adjustment grooves (1024) is equal to the number of adjustment rods (1012) and their positions correspond one-to-one.

5. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 2, characterized in that: Rollers (11) are rotatably mounted on the side walls of the multiple limiting plates (9) that are close to each other.

6. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 1, characterized in that: An assist rod (12) is fixed on the side wall of the outer mold (5), and an anti-slip strip is fixed on the side wall of the assist rod (12).

7. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 3, characterized in that: The adjusting rod (1012) is rotatably mounted on the connecting rod (1011).

8. The extrusion apparatus for manufacturing flame-retardant charging pile cables according to claim 1, characterized in that: The feeding assembly (2) includes a feeding pipe (21) fixed and connected to the discharge end of the extruder (1). The mounting base (4) is provided with a feeding chamber (13) connected to the feeding pipe (21). The feeding assembly (2) also includes a feeding pipe (22) fixed on the mounting base (4) and connected to the feeding chamber (13). The feeding pipe (22) extends into the outer mold (5).

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