Cable cooling assembly and cable extrusion device

Abstract

The utility model discloses a cable cooling assembly and a cable extrusion device, and relates to the technical field of cable manufacturing equipment, the cable cooling assembly comprises an extrusion member and a cooling member, and the extrusion member is provided with a cable output cavity. The cooling piece comprises an inner ring, an outer ring and a connecting part, the inner ring is provided with a cooling channel and an air hole which are communicated with each other, and the cooling channel axially penetrates through the inner ring and is communicated with the cable output cavity; the outer ring is located on the outer side of the inner ring and forms a blast cavity with the outer wall of the inner ring, the blast cavity is communicated with the vent holes, and the inner ring and the outer ring are connected through the connecting part. The cable can enter the cooling channel, the air blowing cavity can be communicated with the air blower, the air blower can blow air to the air blowing cavity, airflow enters the cooling channel through the air holes, air blowing cooling is conducted on the cable in the cooling channel, and therefore an insulating layer of the cable can be rapidly solidified and formed. Compared with the prior art that the cable is soaked in water, the cable is not stained with water, the cable drying step is omitted, the cost is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing equipment, in particular to a cable cooling component and a cable extrusion device. Background Art

[0002] A cable extruder is a device for manufacturing cables. Specifically, after melting plastic particles, it extrudes them from a cable die to form a tube shape, sleeved on an electric core to form an insulating layer, and combined with the electric core to form a cable. Soon after the cable is manufactured, since the insulating layer is still at a relatively high temperature, it is necessary to cool the insulating layer to prevent the insulating layer from sagging due to its own gravity and causing deformation of the insulating layer.

[0003] The prior art with the publication number CN210026238U discloses a cooling tank for an extruder, including a tank body. U-shaped openings are provided on opposite side walls of the tank body. A guide rod is horizontally arranged along the axial direction in the tank body. The guide rod is arranged below the U-shaped opening. A pull ring is sleeved on the guide rod. An annular accommodation cavity is recessed on the inner wall surface of the pull ring. A through hole communicating with the accommodation cavity is provided on the side wall of the pull ring. An annular airbag is arranged in the accommodation cavity. The airbag inflation nozzle is arranged in the through hole. A pull rod is arranged radially on the outer wall surface of the pull ring. An annular limiting groove is provided on the side wall of the pull rod. A clamping groove is provided at one end of the pull rod away from the pull ring. The width of the clamping groove is slightly smaller than the wire diameter of the cable pulling rope.

[0004] However, this prior art still has defects. For example, after the cable is manufactured, it is cooled by cold water in a water tank. After the cable contacts the water, it is necessary to dry the cable, which requires an additional drying process, increasing the cost and having low efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a cable cooling component and a cable extrusion device to solve the technical problems in the prior art that after the cable is manufactured, it is cooled by cold water in a water tank, and after the cable contacts the water, it is necessary to dry the cable, which requires an additional drying process, increasing the cost and having low efficiency.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the utility model provides a cable cooling component, including:

[0008] An extrusion member, which is provided with a cable output cavity; and

[0009] A cooling member, including an inner ring, an outer ring and a connecting portion, wherein the inner ring is provided with a cooling channel and a ventilation hole that communicate with each other. The cooling channel axially penetrates the inner ring and communicates with the cable output cavity. The outer ring is located outside the inner ring and forms a blower cavity at an interval from the outer wall of the inner ring. The blower cavity communicates with the ventilation hole, and the connecting portion connects the inner ring and the outer ring.

[0010] In some embodiments, the connecting portion is annular, and the connecting portion closes the end of the blower cavity away from its air inlet.

[0011] In some embodiments, the number of the ventilation holes is multiple. A part of the ventilation holes are arranged along the axial direction of the inner ring, and another part of the ventilation holes are arranged along the circumferential direction of the inner ring.

[0012] In some embodiments, the extruding member is provided with a battery cell cavity and an extrusion cavity. The extrusion cavity is arranged around the outside of the battery cell cavity, and both the battery cell cavity and the extrusion cavity communicate with the cable output cavity.

[0013] In some embodiments, the extruding member is further provided with a feeding cavity. The feeding cavity communicates with the extrusion cavity and is used for inputting molten plastic particles into the extrusion cavity. The cable cooling assembly further includes a heat preservation member. The heat preservation member is arranged close to the feeding cavity and is used for heating and insulating the plastic particles just entering the feeding cavity.

[0014] In some embodiments, the feeding cavity is annular. The heat preservation member includes a plurality of heating wires. Each heating wire is annular and arranged along the annular path of the feeding cavity. The plurality of heating wires are arranged along the thickness circumferential direction of the feeding cavity.

[0015] In some embodiments, the cable cooling assembly further includes a blower. The blower communicates with the blower cavity and is used for blowing air into the blower cavity, so that the air flow blows the cable located in the cooling channel through the ventilation hole to cool it down.

[0016] In some embodiments, the cable cooling assembly further includes a shaping ring. The shaping ring is located in the extrusion cavity and is sleeved on the extruding member for fixation. A plurality of uniformly arranged protrusions are arranged along the circumferential side of the outer wall of the shaping ring. The plastic particles output from the extrusion cavity can be pressed by the protrusions to form a recessed portion.

[0017] In a second aspect, the present invention further provides a cable extrusion device, including a melting assembly and the above-mentioned cable cooling assembly. The melting assembly is connected to the extruding member and is used for melting plastic particles to input the molten plastic particles into the extruding member.

[0018] In some embodiments, the melting assembly includes a housing, a spiral blade, and a heating element. A heating chamber is provided inside the housing, and the heating chamber communicates with the cable output chamber of the extruding member. The spiral blade is rotatably disposed in the heating chamber and is capable of driving the plastic particle raw material to move to the cable output chamber. The heating element is disposed in the heating chamber and is used to heat and melt the plastic particle raw material in the heating chamber.

[0019] Compared with the prior art, the cable cooling assembly provided by the present utility model includes an extruding member having a cable output chamber for outputting a preliminarily formed cable, and the cable output chamber communicates with the cooling channel, so that the cable can enter the cooling channel; the air blowing chamber of the cooling member can communicate with a blower, and the air holes communicate with the cooling channel and the air blowing chamber. The blower can blow air into the air blowing chamber, and the air flow enters the cooling channel through the air holes to blow and cool the cable in the cooling channel, so that the insulating layer of the cable is quickly cured and formed. Compared with the prior art of immersing the cable in water, the cable in this application will not get wet, eliminating the cable drying step, which not only saves costs but also improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a cross-sectional schematic view of a cable cooling assembly provided by an embodiment of the present utility model;

[0021] Figure 2 is a schematic structural view of a shaping ring provided by an embodiment of the present utility model;

[0022] Figure 3 is a schematic structural view of a cable extruding device provided by an embodiment of the present utility model;

[0023] Figure 4 is an internal schematic view of a housing provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem in the prior art that after the cable is manufactured, it is cooled by cold water in a water tank, and after the cable contacts water, the cable needs to be dried, which requires an additional drying process, increases costs, and has low efficiency. The present utility model provides a cable cooling assembly and a cable extruding device, which can realize blowing air to cool the preliminarily formed cable, so that the just-formed cable is quickly cooled and cured, and avoid the cable from sagging and deforming due to its own gravity. In addition, the cable does not need to be cooled with water and does not need to contact water, eliminating the cable drying step, saving costs, and improving work efficiency.

[0026] It should be noted that the cable cooling assembly described in the present utility model is used for, but not limited to, cable extrusion devices, etc. For the sake of convenience of description, in the present utility model, only the case where the cable cooling assembly is applied to a cable extrusion device is taken as an example for description, and the principle of the cable cooling assembly applied to other types of equipment is substantially the same as that applied to the cable extrusion device, and will not be elaborated one by one here.

[0027] Please refer to Figure 1 , Figure 1 , which is a schematic structural diagram of a cable cooling assembly in an embodiment of the present utility model. The cable cooling assembly 100 includes an extrusion member 1 and a cooling member 2. The extrusion member 1 is provided with a cable output cavity 11 for outputting a preliminarily formed cable. The preliminarily formed cable is formed by sleeving a semi-molten tube rubber sleeve on a battery core, and the semi-molten tube rubber sleeve is extruded from molten plastic particles. The cooling member 2 includes an inner ring 21, an outer ring 22, and a connecting portion 23. The inner ring 21 is provided with a cooling channel 211 and a ventilation hole 212 that communicate with each other. The cooling channel 211 axially penetrates the inner ring 21 and communicates with the cable output cavity 11. The outer ring 22 is located outside the inner ring 21 and forms a blowing cavity 213 at an interval from the outer wall of the inner ring 21. The blowing cavity 213 communicates with the ventilation hole 212. The connecting portion 23 connects the inner ring 21 and the outer ring 22 to keep the inner ring 21 and the outer ring 22 in a spaced state.

[0028] In one embodiment, please refer to Figure 1 , the connecting portion 23 is annular, and the connecting portion 23 closes the end of the blowing cavity 213 away from its air inlet, so that the air flow entering the blowing cavity 213 from the air inlet can fully pass through the ventilation hole 212 and blow into the cooling channel 211, improving the blowing and cooling efficiency of the cable in the cooling channel 211. In other embodiments, the connecting portion 23 can also be a plurality of connecting rods, and the plurality of connecting rods are arranged around the circumferential side of the blowing cavity 213. Both ends of each connecting rod are respectively connected to the inner ring 21 and the outer ring 22. The installation position of the connecting rod is not limited and can be set at the end or the middle part of the blowing cavity 213.

[0029] In one embodiment, please refer to Figure 1, the number of air holes 212 is multiple, and the shape of each air hole 212 is the same, all being circular holes; a part of the air holes 212 are arranged along the axial direction of the inner ring 21, and another part of the air holes 212 are arranged along the circumferential direction of the inner ring 21. The air holes 212 are arranged in both the axial direction and the circumferential direction of the inner ring 21. When the cable extends into the cooling channel 211, all the air holes 212 blow air on the cable simultaneously, capable of blowing air and cooling multiple parts of the cable simultaneously, so as to further improve the cooling efficiency of the cable. In other embodiments, the shape of the air holes 212 can also be set as strip-shaped, and the air holes 212 are arranged along the length extension direction of the inner ring 21, which is beneficial to increasing the air blowing area on the cable and further improving the cooling efficiency of the cable.

[0030] In one embodiment, please refer to Figure 1 , the cooling member 2 is located in the cable output cavity 11, and the outer wall of the outer ring 22 of the cooling member 2 is attached to the cavity wall of the cable output cavity 11, so that the cooling member 2 can be installed and fixed in the cable output cavity 11, saving space. In other embodiments, the cooling member 2 can also be arranged outside the cable output cavity 11. For example, the end of the cooling member 2 is installed at the outlet of the cable output cavity 11. The diameter of the cable output cavity 11 is smaller than the diameter of the inner ring 21, and the cooling channel 211 of the inner ring 21 surrounds and covers the cable output cavity 11, so that the cable output from the cable output cavity 11 can stably enter the cooling channel 211 for cooling.

[0031] In one embodiment, please refer to Figure 1 , the extruding member 1 is provided with a core cavity 24 and an extrusion cavity 25. The extrusion cavity 25 is used for outputting the tube rubber sleeve, that is, the insulating layer of the cable; the core cavity 24 is used for inserting the core. The extrusion cavity 25 is arranged around the outside of the core cavity 24, so that the core can extend into the inside of the tube rubber sleeve, and the tube rubber sleeve is sleeved on the core to form a cable. The core cavity 24 and the extrusion cavity 25 are both communicated with the cable output cavity 11, so that the preliminarily formed cable can extend into the cable output cavity 11.

[0032] In one embodiment, please refer to Figure 1 , the extruding member 1 is further provided with a connection cavity 27 and a feeding cavity 26. The feeding cavity 26 is communicated with the extrusion cavity 25 through the connection cavity 27 and is used for inputting the molten plastic particles into the extrusion cavity 25 through the connection cavity 27; the cable cooling assembly 100 further includes a heat preservation member 28. The heat preservation member 28 is arranged close to the feeding cavity 26 and is used for heating and insulating the plastic particles just entering the feeding cavity 26, so as to prevent part of the plastic particle raw materials from hardening and affecting the subsequent cable forming.

[0033] In one embodiment, please refer to Figure 1, the feeding chamber 26 is annular. The heat preservation member 28 includes a plurality of heating wires. Each heating wire is annular and arranged along the annular path of the feeding chamber 26. The plurality of heating wires are arranged along the thickness circumferential direction of the feeding chamber 26. It can also be understood that the plurality of heating wires are arranged along the circumferential side of the cross-sectional hole of the feeding chamber 26, so that the plurality of heating wires can uniformly heat the circumferential side of the material particles located in the feeding chamber 26. The material particles are uniformly heated, which can avoid premature hardening and affect the formation of the cable.

[0034] In one embodiment, please refer to Figure 1 and Figure 2 , a shaping ring 29 is provided on the inner wall of the extrusion chamber 25 near the outlet. The shaping ring 29 is sleeved on the extrusion member 1 for fixation. A plurality of uniformly arranged protrusions 291 are provided on the outer wall of the shaping ring 29 along its circumferential direction. When the plastic particles are exported along the extrusion chamber 25, they can be extruded by the protrusions 291, so that a plurality of uniformly arranged recesses will be formed on the inner wall of the formed rubber sleeve. When the rubber sleeve is attached to the battery cell, it can increase the contact area with the outer wall of the battery cell, improve the wrapping effect of the rubber sleeve and the battery cell, and is beneficial to improving the quality of the cable.

[0035] In one embodiment, please refer to Figure 3 , the cable cooling assembly 100 further includes a blower 12 and an air duct 13. The air duct 13 penetrates the side wall of the outer ring 22 and extends into the air blowing chamber 213. The blower 12 communicates with the air blowing chamber 213 through the air duct 13 and is used to blow air into the air blowing chamber 213 through the air duct 13, so that the air flow blows the cable located in the cooling channel 211 through the air holes 212 to cool it down. The extrusion member 1 has a discharge port 14. After the cable is cooled and solidified in the cooling channel 211, it is output from the discharge port 14.

[0036] In a second aspect, the present invention also provides a cable extrusion device 101. Please refer to Figure 3 , the cable extrusion device 101 includes a melting assembly 3 and the above-mentioned cable cooling assembly 100. The melting assembly 3 is connected to the extrusion member 1. The melting assembly 3 is used to melt plastic particles and input the molten plastic particles into the extrusion member 1. The plastic particles output from the extrusion member 1 form a rubber sleeve, and the rubber sleeve is sleeved on the battery cell to form a cable.

[0037] In one embodiment, please refer to Figure 3 and Figure 4, the melting assembly 3 includes a housing 31, a spiral blade 32, a heating element 33 and a drive motor 34. A heating chamber 311 is provided inside the housing 31, and the heating chamber 311 communicates with the cable output chamber 11 of the extrusion member 1. The spiral blade 32 is rotatably arranged in the heating chamber 311. The drive motor 34 is connected to the spiral blade 32 and can drive the spiral blade 32 to rotate, so that the spiral blade 32 drives the plastic particle raw material to move to the cable output chamber 11. The heating element 33 is arranged in the heating chamber 311 and is used to heat and melt the plastic particle raw material in the heating chamber 311.

[0038] The spiral blade 32 is spirally connected around a rotating shaft 321 and is rotatably connected to the housing 31 through the rotating shaft 321. The rotating shaft 321 is connected to the drive motor 34, and the drive motor 34 can drive the rotating shaft 321 to rotate, so that the rotating shaft 321 drives the spiral blade 32 to rotate.

[0039] The heating element 33 includes a heating wire 331 and a heating ring 332. The heating wire 331 is arranged inside the central axis of the rotating shaft 321. Since the rotating shaft 321 is located inside the plastic particle pile, the heating wire 331 can heat the inside of the plastic particle pile when driving the rotating shaft 321 to generate heat. The heating wire 331 is arranged along the length extension direction of the rotating shaft 321. During the movement of the plastic particle pile along the length extension direction of the rotating shaft 321, it can be heated by the heating wire 331 while moving, and the heating time is longer, which is beneficial to full melting.

[0040] The heating ring 332 is connected to the housing 31 and can drive the wall of the heating chamber 311 to be heated, so that the wall of the heating chamber 311 heats the outside of the plastic particle pile. Therefore, through the combined heating of the heating wire 331 and the heating ring 332, the inside and outside of the plastic particles can be heated simultaneously, making the plastic particles heated evenly. After the plastic particles are extruded by the forming structure, the formed rubber sleeve basically has no fine particles, and the quality of the produced cable is high.

[0041] A hopper 312 is further provided at the top of the housing 31. The hopper 312 communicates with the heating chamber 311. Workers can pour the plastic particles to be processed into the hopper 312, and the plastic particles enter the heating chamber 311 through the hopper 312. By providing the hopper 312, it is fast and convenient to pour the plastic particles into the heating chamber 311.

[0042] The specific embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cable cooling assembly, characterized in that: include: An extrusion part having a cable output cavity; as well as The cooling member comprises an inner ring, an outer ring and a connecting portion, wherein the inner ring is provided with a connected cooling channel and air holes, wherein the cooling channel axially penetrates the inner ring and is connected to the cable output cavity; the outer ring is located on the outer side of the inner ring and is spaced apart from the outer wall of the inner ring to form an air blast cavity, wherein the air blast cavity is connected to the air holes, and the connecting portion connects the inner ring and the outer ring.

2. The cable cooling assembly according to claim 1, characterized in that: The connecting portion is annular and closes the end of the blast chamber away from the air inlet.

3. The cable cooling assembly according to claim 1, characterized in that: There are multiple air holes, some of which are arranged along the axial direction of the inner ring, and the other air holes are arranged along the circumferential direction of the inner ring.

4. The cable cooling assembly according to claim 1, characterized in that: The extrusion piece is provided with a battery cell cavity and an extrusion cavity, the extrusion cavity is arranged around the outer side of the battery cell cavity, and the battery cell cavity and the extrusion cavity are both connected to the cable output cavity.

5. The cable cooling assembly according to claim 4, characterized in that: The extrusion piece is also provided with a feed cavity, which is connected to the extrusion cavity and is used to input molten plastic particles into the extrusion cavity; the cable cooling assembly also includes a heat preservation piece, which is arranged close to the feed cavity and is used to heat and keep the plastic particles just entering the feed cavity.

6. The cable cooling assembly according to claim 5, characterized in that: The feed cavity is annular, and the heat-insulating component includes a plurality of heating wires, each of which is annular and arranged around an annular path of the feed cavity, and the plurality of heating wires are arranged around the thickness circumference direction of the feed cavity.

7. The cable cooling assembly according to claim 1, characterized in that: The cable cooling assembly also includes a blower, which is connected to the blast chamber and is used to blow air into the blast chamber so that air flows through the air holes to cool down the cables located in the cooling channel.

8. The cable cooling assembly according to claim 4, characterized in that: The cable cooling assembly also includes a shaping ring, which is located in the extrusion cavity and is sleeved on the extrusion piece for fixation. The outer wall of the shaping ring is provided with a plurality of evenly arranged protrusions along its circumference, and the plastic particles output from the extrusion cavity can be pressed by the protrusions to form a recessed portion.

9. A cable extrusion device, characterized in that: The cable cooling assembly comprises a melting component and the cable cooling assembly according to any one of claims 1 to 8, wherein the melting component is connected to the extrusion piece and is used to melt plastic particles so as to input the plastic particles in a molten state into the extrusion piece.

10. The cable extrusion device according to claim 9, characterized in that: The melting component includes a shell, a spiral blade and a heating element. A heating chamber is provided in the shell, and the heating chamber is connected to the cable output chamber of the extruder. The spiral blade is rotatably arranged in the heating chamber and can drive the plastic particle raw material to move to the cable output chamber. The heating element is arranged in the heating chamber and is used to heat and melt the plastic particle raw material fixed in the heating chamber.

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