Cable production equipment

Abstract

The present invention belongs to the field of cable production, and specifically provides a cable production device, including an extruder, an extrusion mold, a first cooling component and a second cooling component. The first cooling component includes a shell, a semiconductor cooling sheet and a heat sink. The shell has a cooling channel, and the semiconductor cooling sheet can cool the shell. When the core wire passes through the cooling channel, the outer surface of the insulation layer is subjected to the cold air emitted by the shell in the entire circumferential direction. The outer surface of the insulation layer generates a shrinking surface tension after being cooled. Under the action of the surface tension, the outer layer of the insulation layer can constrain the inner layer of the insulating material that is still in a molten state to gather toward the center of the core wire, so that the insulation layer returns to a round state, thereby eliminating the sagging phenomenon caused by gravity, and ensuring the production roundness of the cable, especially the thick-walled cable, and the coaxiality of the core wire. Then the core wire enters the second cooling component, and the second cooling component can perform multi-stage cooling on the insulation layer to prevent stress from being generated inside the insulation layer, so that the product quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of cable manufacturing, and in particular relates to cable production equipment. Background Art

[0002] Cables are indispensable connecting cables in electrical equipment. They are composed of a conductive core wire and an outer insulating layer. The insulating layer is obtained by extruding the molten insulating material through an extruder, wrapping it around the outside of the conductive core wire, and then cooling it in a cooling water tank. The cooled cable is dried and then wound into a roll for packaging.

[0003] Common materials for the insulation layer include polyvinyl chloride (PVC), cross-linked polyethylene (XLPE), silicone rubber, thermoplastic elastomer (TPE), etc. When the diameter of the cable produced is larger, the thickness of the insulation layer on the cable also increases accordingly. Since the insulation layer wrapped on the core wire after passing through the extruder still has a certain fluidity at the beginning, it will flow downward under the influence of gravity before entering the cooling water tank, affecting the roundness of the cable or the coaxiality of the core wire. In severe cases, the product will be unqualified due to excessive eccentricity of the insulation layer.

[0004] In the prior art, various measures have been taken to address the above technical problems, each with its own advantages and disadvantages. For example: Measure 1 designs the cable production line in a vertical direction, which can eliminate the influence of gravity on the "falling eccentricity" of the insulation layer. The disadvantage of this method is that it occupies a large space height and requires the construction of a vertical tower to arrange the production line. The construction cost of the tower is expensive. Measure 2 sets up multiple extrusion processes to extrude the thicker insulation layer in multiple steps to reduce the fluidity of the insulation material and ensure the roundness of the cable. The disadvantage of this method is that the boundaries between the multiple insulation layers are obvious, which affects the product performance of the cable. Measure 3 arranges the cooling water tank and the extrusion mold close to each other, and sets the temperature of the cooling water very low, so that the insulation layer is quenched and formed after entering the cooling water tank. The disadvantage of this method is that the insulation layer is prone to generate large internal stress after quenching, and is prone to cracking during later use. Measure 4 designs the die of the extruder to be eccentric, thereby compensating for the falling effect caused by gravity. The disadvantage of this method is that the relative position of the core wire and the die needs to be adjusted at any time during the production process, and the quality of the product produced is unstable. Summary of the invention

[0005] The invention provides a cable production device, aiming to solve the problem that the cable insulation layer falls down due to the influence of gravity during extrusion.

[0006] To achieve the above object, the technical solution adopted by the present invention is: to provide a cable production equipment, comprising:

[0007] An extruder comprises a machine body, an extrusion screw and a first driving assembly, wherein the machine body has a containing chamber, the inner wall of the containing chamber is provided with a heating sleeve, the top of the containing chamber is provided with a feeding port, the containing chamber has a discharging channel, the extrusion screw is arranged in the containing chamber, and one end of the extrusion screw extends into the discharging channel, the first driving assembly is arranged in the machine body, and is used to drive the extrusion screw to rotate around its own axis, and during the rotation of the extrusion screw, the material in the containing chamber is transported to the discharging channel;

[0008] An extrusion die has a molding cavity, the molding cavity is provided with a feed channel and a threading channel, the feed channel is connected with the discharge channel, the threading channel passes through the extrusion die along the conveying direction of the core wire, and the wire inlet end and the wire outlet end of the threading channel are both provided with a guide die head;

[0009] A first cooling assembly is provided at the discharge side of the extrusion die, the first cooling assembly comprises a shell, a semiconductor cooling sheet and a heat sink, the shell has a cooling channel penetrating the conveying direction of the core wire, the inner wall of the cooling channel is provided with a cold conducting plate, the semiconductor cooling sheet has a cooling surface and a heating surface, the cooling surface is attached to the outer wall of the shell, and the heat sink is attached to the heating surface of the semiconductor cooling sheet; and

[0010] The second cooling component is arranged at the discharge side of the first cooling component. The second cooling component includes a plurality of cooling water troughs arranged in sequence along the conveying direction of the core line, and the water temperature of the plurality of cooling water troughs along the conveying direction of the core line is reduced in sequence.

[0011] In a possible implementation, the shell is a tubular component with a regular polygonal cross section, and each side surface of the shell is provided with at least one semiconductor refrigeration plate.

[0012] In a possible implementation, the feed port and the feed channel are located on the same side of the machine body, the extruder also includes a drying plate arranged in the accommodating cavity, the drying plate divides the accommodating cavity into an upper and lower cavity, the drying plate is inclined up and down, and the high end of the drying plate is located below the feed port, and a ventilation hole is opened on the top wall of the machine body.

[0013] In a possible implementation, the extruder further includes a blanking assembly disposed at the feed port.

[0014] In a possible implementation, the blanking assembly includes:

[0015] Two comb-shaped plates, one end of each comb-shaped plate is hinged to the inner wall of the feed port, and the other end of each comb-shaped plate is provided with comb-shaped teeth, and the comb-shaped teeth of the two comb-shaped plates are arranged crosswise with each other; and

[0016] The second driving assembly is used to drive the comb plate to rotate around its own rotation axis.

[0017] In a possible implementation, the extrusion die includes:

[0018] Two mold bodies are arranged to be matched with each other up and down, and the two mold bodies are matched with each other to form the molding cavity, and the edges of the mold bodies are provided with a plurality of connecting parts at intervals along their own contours; and

[0019] A plurality of connecting members are respectively connected between two corresponding upper and lower connecting parts.

[0020] In a possible implementation, at least one of the mold bodies is provided with a disassembly hole, and the disassembly hole is a threaded hole. The extrusion mold further includes a disassembly bolt, and the disassembly bolt is threadably engaged with the disassembly hole.

[0021] In a possible implementation, the cooling water tank includes:

[0022] A water tank body, having a water storage cavity inside, and a water tank on the top of the water tank body, wherein the water tank penetrates the water tank body along the conveying direction of the core wire;

[0023] a water delivery mechanism, connected to the water storage chamber, for delivering water into the water tank; and

[0024] The temperature regulating mechanism is arranged in the water storage chamber and is used for regulating the water temperature in the water storage chamber.

[0025] In a possible implementation, the liquid level in the water tank is higher than the core wire, and the water tank body is further provided with recovery pools below both ends of the water tank, respectively, and the recovery pools are connected to the water storage cavity.

[0026] In a possible implementation, the cooling plate is a strip-shaped member perpendicular to the inner wall of the cooling channel, and a plurality of cooling plates are provided at intervals along the circumference of the cooling channel.

[0027] Compared with the prior art, the cable production equipment provided by the present invention has the following beneficial effects:

[0028] The cable production equipment provided by the present invention includes an extruder, an extrusion die, a first cooling component and a second cooling component. When working, the raw material of the insulation layer (i.e., the cable sheath material) is put in from the feed port, and after the raw material is melted in the accommodating cavity, it is transported to the molding cavity of the extrusion die through the extrusion screw. When the core wire passes through the molding cavity through the threading channel, the surface of the core wire will be covered with an insulation layer, and the core wire continues to be transported forward through the first cooling component and the second cooling component, and finally the insulation layer is cooled and shaped, and the production of the cable is completed.

[0029] The first cooling assembly includes a shell, a semiconductor refrigeration sheet and a heat sink. The shell has a cooling channel. The semiconductor refrigeration sheet can cool the shell. The heat sink is attached to the heating surface of the semiconductor refrigeration sheet, which can dissipate heat from the semiconductor refrigeration sheet to ensure the normal operation of the semiconductor refrigeration sheet. The refrigeration temperature of the semiconductor refrigeration sheet can be as low as -60°C, with low refrigeration temperature and fast speed. When the core wire passes through the cooling channel, the outer surface of the insulation layer is subjected to the cold air emitted by the shell in the entire circumferential direction. The outer surface of the insulation layer generates a shrinking surface tension after being cooled. Under the action of the surface tension, the outer layer of the insulation layer can constrain the inner layer of the insulating material still in a molten state to gather toward the center of the core wire, so that the insulation layer returns to a rounded state, thereby eliminating the sagging phenomenon caused by gravity, and ensuring the production roundness of the cable, especially the thick-walled cable, and the coaxiality of the core wire. After passing through the first cooling assembly, the core wire enters the second cooling assembly. The second cooling assembly in the present invention includes a cooling water tank with a successively lowered water temperature, which can perform multi-stage cooling on the insulation layer to prevent stress from being generated inside the insulation layer, so that the product quality is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional diagram of a cable production device provided by an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A partial enlarged view of the middle A part;

[0032] Figure 3 An exploded schematic diagram of a first cooling assembly in an embodiment of the present invention;

[0033] Figure 4 An internal cross-sectional view of an extruder and an extrusion die in an embodiment of the present invention;

[0034] Figure 5 A three-dimensional diagram of the area near the blanking port of the extruder in the embodiment of the present invention;

[0035] Figure 6 An exploded schematic diagram of an extrusion die in an embodiment of the present invention;

[0036] Figure 7 Schematic diagram of the structure of the cooling water tank in the embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 10. Extruder; 11. Machine body; 111. Feed inlet; 112. Ventilation hole; 12. Extrusion screw; 13. First drive assembly; 14. Drying plate; 15. Blanking assembly; 151. Comb plate; 152. Second drive assembly; 20. Extrusion mold; 21. Mold body; 211. Disassembly hole; 212. Connecting part; 22. Connecting piece; 23. Unloading bolt; 24. Guide die head; 30. First cooling assembly; 31. Shell; 311. Cooling plate; 32. Semiconductor refrigeration sheet; 33. Heat sink; 40. Cooling water trough; 41. Water trough body; 42. Water delivery mechanism; 43. Recovery tank; 50. Core wire. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed to", "fixed" or "fixedly disposed" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" or "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "set to" or "disposed on" another element, it may be directly on the other element or there may be a central element. "Multiple" refers to two or more quantities. "At least one" refers to one or more quantities. "Several" refers to one or more quantities.

[0041] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0042] Please also read Figures 1 to 7 , the cable production equipment provided by an embodiment of the present invention is described below.

[0043] See also Figure 1 , Figure 2 and Figure 3The cable production equipment provided by the embodiment of the present invention includes an extruder 10, an extrusion mold 20, a first cooling component 30 and a second cooling component. The extruder 10 includes a body 11, an extrusion screw 12 and a first driving component 13. The body 11 has a accommodating cavity, the inner wall of the accommodating cavity is provided with a heating sleeve, the top of the accommodating cavity is provided with a feed port 111, the accommodating cavity has a discharge channel, the extrusion screw 12 is arranged in the accommodating cavity, and one end extends into the discharge channel. The first driving component 13 is arranged in the body 11, and is used to drive the extrusion screw 12 to rotate around its own axis. During the rotation of the extrusion screw 12, the material in the accommodating cavity is transported to the discharge channel; the extrusion mold 20 has a molding cavity, and the molding cavity is provided with a feed channel and a threading channel. The feed channel is connected to the discharge channel. The threading channel passes through the extrusion mold 20 along the conveying direction of the core wire 50. The inlet end and the outlet end of the threading channel are connected to the feed channel. A guide die head 24 is provided at each end; a first cooling component 30 is provided at the discharge side of the extrusion mold 20, the first cooling component 30 includes a shell 31, a semiconductor refrigeration sheet 32 ​​and a heat sink 33, the shell 31 has a cooling channel that runs through the conveying direction of the core wire 50, a cold plate 311 is provided on the inner wall of the cooling channel, the semiconductor refrigeration sheet 32 ​​has a cooling surface and a heating surface, the cooling surface is attached to the outer wall of the shell 31, and the heat sink 33 is attached to the heating surface of the semiconductor refrigeration sheet 32; a second cooling component is provided at the discharge side of the first cooling component 30, the second cooling component includes a plurality of cooling water troughs 40 arranged in sequence along the conveying direction of the core wire 50, and the water temperature of the plurality of cooling water troughs 40 along the conveying direction of the core wire 50 is reduced in sequence.

[0044] Compared with the prior art, the cable production equipment provided by the embodiment of the present invention has the following beneficial effects:

[0045] The cable production equipment provided by the embodiment of the present invention includes an extruder 10, an extrusion die 20, a first cooling assembly 30 and a second cooling assembly. When working, the raw material of the insulation layer (i.e., the cable sheath material) is fed from the feed port 111, and after the raw material is melted in the accommodating cavity, it is transported to the molding cavity of the extrusion die 20 through the extrusion screw 12. When the core wire 50 passes through the molding cavity through the threading channel, the surface of the core wire 50 will be covered with an insulation layer, and the core wire 50 continues to be transported forward through the first cooling assembly 30 and the second cooling assembly, and finally the insulation layer is cooled and shaped, and the production of the cable is completed.

[0046] The first cooling assembly 30 includes a shell 31, a semiconductor cooling sheet 32 ​​and a heat sink 33. The shell 31 has a cooling channel. The semiconductor cooling sheet 32 ​​can cool the shell 31. The heat sink 33 is attached to the heating surface of the semiconductor cooling sheet 32, and can dissipate heat from the semiconductor cooling sheet 32 ​​to ensure the normal operation of the semiconductor cooling sheet 32. The cooling temperature of the semiconductor cooling sheet 32 ​​can be as low as -60°C, with low cooling temperature and fast speed. When the core wire 50 passes through the cooling channel, the outer surface of the insulation layer is subjected to the cold air emitted by the shell 31 in the entire circumferential direction. The outer surface of the insulation layer generates surface tension for contraction after being cooled. Under the action of the surface tension, the outer layer of the insulation layer can constrain the insulating material in the inner layer that is still in a molten state to gather toward the center of the core wire 50, so that the insulation layer returns to a rounded state, thereby eliminating the sagging phenomenon caused by gravity, and ensuring the production roundness of the cable, especially the thick-walled cable, and the coaxiality of the core wire 50. After passing through the first cooling component 30, the core wire 50 enters the second cooling component. In the embodiment of the present invention, the second cooling component includes a cooling water tank 40 with water temperature decreasing successively, which can perform multi-stage cooling on the insulation layer to prevent stress from being generated inside the insulation layer, thereby ensuring product quality.

[0047] In the embodiment of the present invention, the extruder 10 is also called a plastic extruder, which can mix and melt the raw materials of the insulating layer (i.e., the cable sheath material), and then convey the molten raw materials to the extrusion die 20. When working, the raw materials are fed from the feed port 111, and the raw materials are heated and melted into a molten state under the action of the heat released by the heating sleeve. Then the first drive component 13 drives the extrusion screw 12 to rotate, and conveys the raw materials to the extrusion die 20 through the discharge channel.

[0048] The heating sleeve is arranged on the inner wall of the accommodating cavity, and can release heat to melt the raw materials. The heating sleeve can be specifically heated by electric heating, thermal oil heating, etc. The first driving component 13 can be a common power device such as an electric motor and a hydraulic motor.

[0049] The extrusion die 20 has a molding cavity inside for accommodating the raw materials of the insulating layer. The core wire 50 is obtained by twisting and weaving a plurality of metal wires (generally copper wires). After the core wire 50 passes through the molding cavity, the surface will be covered with an insulating layer, and then after cooling and shaping, a finished cable is obtained.

[0050] The first cooling assembly 30 includes a housing 31, a semiconductor cooling sheet 32 ​​and a heat sink 33. The housing 31 is made of stainless steel, aluminum alloy, copper alloy and other materials with good thermal conductivity. The housing 31 has a cooling channel, and a cooling plate 311 is provided on the inner wall of the cooling channel. The cooling plate 311 is also made of a material with good thermal conductivity, and can transfer the coldness of the semiconductor cooling sheet 32 ​​to the cooling channel to cool the outer layer of the cable insulation layer.

[0051] Due to the working principle of the semiconductor cooling sheet 32, the semiconductor cooling sheet 32 ​​cools on one side and heats on the other side during operation. To ensure the normal operation of the semiconductor cooling sheet 32, a heat sink 33 is also provided on the heating surface, which can dissipate the heat generated by the semiconductor cooling sheet 32 ​​to the outside in time. In order to improve the heat dissipation efficiency, a fan can also be provided on the heat sink 33, which can form an airflow to quickly dissipate the heat.

[0052] The second cooling assembly includes a plurality of cooling water tanks 40, the cooling temperature of the cooling water tanks 40 decreases in sequence along the conveying direction of the core wire 50, and the cable can be cooled step by step, thereby ensuring the insulation layer, especially the insulation layer molding quality of thick-walled cables. It is understandable that there is no specific restriction on the number and specific temperature of the cooling water tanks 40, and the user can select and set according to the material characteristics, thickness and other parameters of the cable insulation layer.

[0053] See also Figure 2 and Figure 3 In some possible embodiments, since the semiconductor refrigeration sheet 32 ​​is in the shape of a flat plate, in order to ensure the cooling effect of the cooling channel, the shell 31 is a tubular component with a regular polygonal cross-section, and at least one semiconductor refrigeration sheet 32 ​​is provided on each side of the shell 31. The core wire 50 passes through the center of the shell 31 to ensure that the insulating layer can receive uniform cooling in the entire circumferential direction.

[0054] See also Figure 4 and Figure 5 In some possible embodiments, the feed port 111 and the feed channel are located on the same side of the body 11, and the extruder 10 further includes a drying plate 14 disposed in the accommodating cavity, the drying plate 14 divides the accommodating cavity into an upper and lower cavity, the drying plate 14 is tilted up and down, and the high end of the drying plate 14 is located below the feed port 111, and a ventilation hole 112 is opened on the top wall of the body 11.

[0055] In this embodiment, a drying plate 14 is provided in the receiving chamber. Specifically, the drying plate 14 can be a component such as a vibrating screen that can make the granular raw materials slide slowly along the inclined surface. After the raw materials fall on the drying plate 14, they are transported downward along the inclined direction of the drying plate 14. During this period, if the raw materials contain moisture, the moisture can be dried by the heat in the receiving chamber, and the water vapor is discharged from the vent at the top. In this embodiment, by providing the drying plate 14, the receiving chamber is divided into two upper and lower chambers, and the moisture in the raw materials is dried by the heat in the receiving chamber, so as to avoid defects such as holes in the insulation layer due to moisture.

[0056] See also Figure 4 and Figure 5In some possible embodiments, the extruder 10 further includes a blanking assembly 15 disposed at the feed port 111. The blanking assembly 15 is used to control the blanking speed of the raw materials, avoid excessive accumulation on the drying plate 14 to affect the drying effect, and ensure that the raw materials are thoroughly dried. The blanking assembly 15 can specifically be a device such as a star-shaped discharge valve, a gate valve, etc. that can realize the blanking of granular materials.

[0057] See also Figure 4 and Figure 5 In some possible embodiments, the blanking assembly 15 includes two comb plates 151 and a second driving assembly 152. One end of the comb plate 151 is hinged to the inner wall of the feed port 111, and the other end is provided with comb teeth, and the comb teeth of the two comb plates 151 are arranged crosswise with each other; the second driving assembly 152 is used to drive the comb plate 151 to rotate around its own rotation axis.

[0058] In this embodiment, the blanking assembly 15 includes two comb plates 151, and a second drive assembly 152 for controlling the rotation of the two comb plates 151. The second drive assembly 152 can be a power device such as a motor. When the two comb plates 151 are in a horizontal posture, the comb teeth of the two comb plates 151 completely overlap, and the raw materials will not fall. When the two comb plates 151 cross each other at a certain angle, the granular raw materials can leak from the gap between the two comb teeth. By changing the intersection angle of the two comb plates 151, the blanking speed can be controlled and uniform blanking can be achieved. In addition, since the material can only leak from the gap between the comb teeth, the comb tooth structure helps to spread the blanking evenly on the drying plate 14, avoiding excessive accumulation of materials affecting the drying effect.

[0059] See also Figure 6 In some possible embodiments, the extrusion mold 20 includes two mold bodies 21 and a plurality of connecting members 22. The two mold bodies 21 are arranged to be matched with each other up and down. The two mold bodies 21 are matched with each other to form a molding cavity. The edge of the mold body 21 is provided with a plurality of connecting parts 212 at intervals along its own contour; the plurality of connecting members 22 are respectively connected between the two corresponding upper and lower connecting parts 212.

[0060] When the equipment stops due to a fault, the raw materials in the molding cavity cool and solidify. Before restarting, the residual raw materials need to be cleaned. In this embodiment, the two mold bodies 21 are detachably connected by a connecting member 22, and the connecting member 22 can be a bolt. When the equipment stops, the bolts can be removed to separate the upper and lower mold bodies 21, and then the residual materials in the molding cavity can be cleaned.

[0061] See also Figure 6In some possible embodiments, at least one mold body 21 is provided with a disassembly hole 211, which is a threaded hole. The extrusion mold 20 also includes a disassembly bolt 23, which is threadedly engaged with the disassembly hole 211. When performing maintenance, the disassembly bolt 23 can apply a pushing force to the mold body 21 to separate the two mold bodies 21, so that maintenance personnel can clean up the remaining raw materials.

[0062] See also Figure 7 In some possible embodiments, the cooling water tank 40 includes a water tank body 41, a water delivery mechanism 42, and a temperature adjustment mechanism. The water tank body 41 has a water storage cavity inside, and a water tank is provided on the top of the water tank body 41. The water tank passes through the water tank body 41 along the conveying direction of the core line 50; the water delivery mechanism 42 is connected to the water storage cavity and is used to deliver water to the water tank; the temperature adjustment mechanism is provided in the water storage cavity and is used to adjust the water temperature in the water storage cavity. The temperature adjustment mechanism includes a refrigeration unit and a heating unit, which can maintain the water temperature within a suitable range.

[0063] See also Figure 7 In some possible embodiments, the liquid level in the water tank is higher than the core line 50, and the water tank body 41 is further provided with recovery pools 43 below both ends of the water tank. The recovery pools 43 are connected to the water storage cavity, and the water flowing out from both ends of the water tank enters the recovery pool 43 to realize the recycling of water.

[0064] See also Figure 2 and Figure 3 In some possible embodiments, the cold conduction plate 311 is a strip-shaped member perpendicular to the inner wall of the cooling channel, and a plurality of cold conduction plates 311 are provided at intervals along the circumference of the cooling channel, which helps to transfer the cold energy of the semiconductor refrigeration plate 32 to the cooling channel to cool the outer surface of the insulation layer.

[0065] It can be understood that the various parts in the above-mentioned embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the specification of the present invention has recorded various combination embodiments and can support different combination embodiments.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable production equipment, characterized in that: include: An extruder (10) comprises a machine body (11), an extrusion screw (12) and a first drive assembly (13), wherein the machine body (11) has a receiving chamber, the inner wall of the receiving chamber is provided with a heating sleeve, the top of the receiving chamber is provided with a feed port (111), the receiving chamber has a discharge channel, the extrusion screw (12) is arranged in the receiving chamber, and one end of the extrusion screw (12) extends into the discharge channel, the first drive assembly (13) is arranged in the machine body (11) and is used to drive the extrusion screw (12) to rotate around its own axis, and during the rotation of the extrusion screw (12), the material in the receiving chamber is transported to the discharge channel; An extrusion die (20) having a molding cavity, the molding cavity being provided with a feed channel and a threading channel, the feed channel being in communication with the discharge channel, the threading channel penetrating the extrusion die (20) along a conveying direction of a core wire (50), and guide dies (24) being provided at both the wire inlet end and the wire outlet end of the threading channel; a first cooling assembly (30) disposed at a discharge side of the extrusion die (20), the first cooling assembly (30) comprising a shell (31), a semiconductor cooling sheet (32) and a heat sink (33), the shell (31) having a cooling channel penetrating in the conveying direction of the core wire (50), a cooling plate (311) being provided on the inner wall of the cooling channel, the semiconductor cooling sheet (32) having a cooling surface and a heating surface, the cooling surface being attached to the outer wall of the shell (31), and the heat sink (33) being attached to the heating surface of the semiconductor cooling sheet (32); and The second cooling component is arranged at the discharge side of the first cooling component (30), and the second cooling component includes a plurality of cooling water troughs (40) arranged in sequence along the conveying direction of the core wire (50), and the water temperature of the plurality of cooling water troughs (40) along the conveying direction of the core wire (50) is reduced in sequence.

2. The cable production equipment according to claim 1, characterized in that: The shell (31) is a tubular component with a regular polygonal cross section, and each side surface of the shell (31) is provided with at least one semiconductor refrigeration plate (32).

3. The cable production equipment according to claim 1, characterized in that: The feed port (111) and the feed channel are located on the same side of the machine body (11). The extruder (10) further comprises a drying plate (14) arranged in the accommodating cavity, the drying plate (14) divides the accommodating cavity into an upper and lower cavity. The drying plate (14) is arranged to be inclined up and down, and the high end of the drying plate (14) is located below the feed port (111). A ventilation hole (112) is provided on the top wall of the machine body (11).

4. The cable production equipment according to claim 3, characterized in that: The extruder (10) further comprises a blanking assembly (15) arranged at the feed port (111).

5. The cable production equipment according to claim 4, characterized in that: The blanking assembly (15) comprises: two comb-shaped plates (151), one end of the comb-shaped plates (151) being hinged to the inner wall of the feed port (111), and the other end of the comb-shaped plates being provided with comb-shaped teeth, the comb-shaped teeth of the two comb-shaped plates (151) being arranged crosswise with each other; and The second driving assembly (152) is used to drive the comb plate (151) to rotate around its own rotation axis.

6. The cable production equipment according to claim 1, characterized in that: The extrusion die (20) comprises: Two mold bodies (21) are arranged to be matched with each other in an upper and lower manner, and the two mold bodies (21) are matched with each other to form the molding cavity, and the edges of the mold bodies (21) are provided with a plurality of connection parts (212) at intervals along their own contours; and A plurality of connecting members (22) are respectively connected between two corresponding upper and lower connecting portions (212).

7. The cable production equipment according to claim 6, characterized in that: At least one of the mold bodies (21) is provided with a disassembly hole (211), the disassembly hole (211) being a threaded hole, and the extrusion mold (20) further comprises a disassembly bolt (23), the disassembly bolt (23) being threadedly engaged with the disassembly hole (211).

8. The cable production equipment according to claim 1, characterized in that: The cooling water tank (40) comprises: A water tank body (41) having a water storage cavity therein, and a water tank on the top of the water tank body (41), wherein the water tank passes through the water tank body (41) along the conveying direction of the core wire (50); A water delivery mechanism (42) is communicated with the water storage chamber and is used to deliver water into the water tank; and The temperature regulating mechanism is arranged in the water storage chamber and is used for regulating the water temperature in the water storage chamber.

9. The cable production equipment according to claim 8, characterized in that: The liquid level in the water tank is higher than the core wire (50), and the water tank body (41) is further provided with recovery pools (43) below both ends of the water tank, respectively, and the recovery pools (43) are communicated with the water storage cavity.

10. The cable production equipment according to claim 1, characterized in that: The cooling plate (311) is a strip-shaped component perpendicular to the inner wall of the cooling channel, and a plurality of cooling plates (311) are arranged at intervals along the circumference of the cooling channel.

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