Plastic extruding machine for electric wires and cables

Abstract

The invention relates to the technical field of electric wire and cable processing, in particular to an electric wire and cable plastic extruding machine which comprises a heating pipe arranged in a heating barrel and a stirring barrel arranged in the heating barrel, a supporting frame is arranged at the top of the stirring barrel, and a supporting sleeve is arranged on one side of the supporting frame; a bottom plate is fixedly arranged on the bottom of the stirring barrel, a discharging hole is formed in one side of the bottom plate in a pipe penetrating mode, a plastic extruding machine is arranged at the bottom of the heating barrel, and raw materials in the stirring barrel can be better heated through a heating pipe arranged in the heating barrel; a better mixing effect is achieved through a helical ribbon type pressing piece, a crushing piece and a scraping piece, materials can be cooled and gas can be sucked through a water spraying head and a gas suction hole, the sucked gas is treated and purified through a light treatment box when the pressure is small, an adsorbent can be regenerated by guiding the gas into a deep treatment box, and the adsorption efficiency is improved. Or drying the cooled material.

Description

Technical Field

[0001] This invention relates to the technical field of wire and cable processing, and more particularly to an extruder for wires and cables. Background Technology

[0002] In the manufacturing process of wires and cables, the extruder is used to uniformly coat the conductor core with molten plastic granules, which is a crucial step in forming the cable insulation layer or sheath. The performance of the extruder directly determines the quality, production efficiency, and energy consumption of the cable products. However, the widely used traditional extruders and their supporting processes have a series of systemic defects, which restrict further improvements in production levels.

[0003] First, traditional equipment poses risks of uneven mixing and contamination during the raw material pretreatment and feeding stages. A common practice is to directly feed plastic granules and additives (such as color masterbatch and stabilizers) into the extruder hopper or perform simple mixing via a separate mixing bin. This pretreatment method often results in uneven heating, leading to the presence of "cold material" or localized overheating. This not only prolongs the time required for the material to reach a uniform plasticized state, reducing processing efficiency, but also directly causes fluctuations in the thickness and performance differences of the cable sheathing layer after extrusion due to inconsistent physical states of the materials. Furthermore, whether it's the extruder's built-in hopper or an open mixing bin, the feed inlet is usually directly exposed to the workshop environment. During mixing and conveying, environmental dust, fibers, and other impurities easily fall in. These impurities, once entering the extrusion channel, will form defects on the surface of the final product, severely affecting the cable's appearance and insulation performance.

[0004] Secondly, in the extrusion molding and subsequent processing stages, there is a serious disconnect between waste gas treatment and energy recovery, resulting in poor energy efficiency and environmental performance. During the process of plastic melting and being extruded under pressure inside the extruder barrel, a certain amount of organic gases and plasticized fumes are released. Traditionally, these gases are either directly drawn away from near the extruder head by a fan and discharged, or released into the atmosphere after only simple filtration. This treatment method neither deeply purifies the harmful components nor fully ignores the large amount of residual heat carried in the waste gas. Meanwhile, the freshly extruded, high-temperature cable cores must enter a cooling water tank for rapid shaping. This process consumes energy to cool the water, while the heat of the cores themselves is wasted. Subsequently, to remove the cooling water from the cable surface, separate drying equipment is required, consuming additional electrical or thermal energy. The entire process presents a crude model of "high energy consumption and emissions, low-efficiency treatment, and one-way energy dissipation," which does not meet the current industrial requirements for green manufacturing and energy conservation and emission reduction. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the current extrusion machines for wires and cables, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide an extrusion machine for wires and cables, which aims to improve work efficiency.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heating tank, a heating pipe disposed inside the heating tank, a stirring tank disposed inside the heating tank, a support frame disposed on the top of the stirring tank, a support sleeve disposed on one side of the support frame, a bottom plate fixedly disposed at the bottom of the stirring tank, a discharge hole disposed through one side of the bottom plate, and an extruder disposed at the bottom of the heating tank.

[0009] In a preferred embodiment of the extruder for wires and cables described in this invention, a stirring rod is rotatably provided on one side of the support sleeve, and a spiral-type pressing component is provided on the outer side of the stirring rod, wherein the spiral-type pressing component is provided in two sets of staggered arrangement.

[0010] In a preferred embodiment of the extruder for wires and cables described in this invention, a crushing component is further provided on the outer side of the stirring rod. The crushing component is provided in multiple sets and is arranged in an alternating manner, and the surface of the crushing component is provided with multiple sets of crushing blades.

[0011] As a preferred embodiment of the extruder for wires and cables described in this invention, a cooling head is provided on one side of the extruder, and a water spray head and an air suction hole are provided at the bottom of the cooling head.

[0012] In a preferred embodiment of the extruder for wires and cables described in this invention, water pipes are provided on both sides of the cooling head, a water tank is connected to one side of the water pipes, an air extraction component is provided on the top of the cooling head, and air extraction components are provided on both sides of the air extraction component.

[0013] As a preferred embodiment of the extruder for wires and cables described in this invention, a flow divider is provided on one side of the air guide pipe, and a rotating fan is provided inside the flow divider. The rotating fan includes a plurality of fan blades, and a protrusion is provided on one side of each fan blade. The protrusion is provided only on one side of one of the fan blades.

[0014] In a preferred embodiment of the extruder for wires and cables described in this invention, a diversion pipe is provided on the outer side of the rotating fan, an annular groove is provided inside the diversion pipe, and a sensor is provided on one side of the annular groove.

[0015] In a preferred embodiment of the extruder for wires and cables described in this invention, an air outlet groove is provided on one side of the diversion pipe, a baffle is provided at the bottom of the diversion pipe, an air outlet hole is provided through one side of the baffle, and a return spring is provided on one side of the baffle.

[0016] In a preferred embodiment of the extruder for wires and cables described in this invention, a limiting rod is provided on one side of the baffle, a movable plate is fixedly provided on the outer side of the limiting rod, and a movable bucket is slidably provided on the outer side of the movable plate.

[0017] In a preferred embodiment of the extruder for wires and cables described in this invention, a light treatment box is connected to one side of the air outlet trough via a conduit, a recovery pipe is provided on one side of the light treatment box, a deep treatment box is connected to the other side of the recovery pipe, and a diverter is connected to one side of the deep treatment box.

[0018] The beneficial effects of this invention are as follows: the heating tubes installed inside the heating tank can better heat the raw materials inside the mixing tank; the spiral-type pressing component, crushing component, and scraping component can achieve better mixing effect; the water spray head and air suction hole can cool the material and absorb gas. When the absorbed gas pressure is low, it is treated and purified in the light treatment box. The gas can be introduced into the deep treatment box to regenerate the adsorbent or to dry the cooled material. When the gas pressure increases to a certain level, the gas flows into the deep treatment box for purification. Similarly, the heat can be used for drying. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 A side view of the overall structure provided for this invention.

[0021] Figure 3 A top view of the overall structure provided for this invention.

[0022] Figure 4This is a partial schematic diagram of the overall structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the interior of the heating tank and stirring tank provided by the present invention.

[0024] Figure 6 This is a schematic diagram of the internal structure of the diverter provided by the present invention.

[0025] Figure 7 This is a schematic diagram of the annular groove, the annular groove, and the sensor in conjunction with the present invention.

[0026] In the diagram: 1. Heating tank; 11. Heating tube; 2. Mixing tank; 21. Support frame; 22. Support sleeve; 23. Base plate; 24. Discharge hole; 3. Mixing rod; 31. Screw-type pressing component; 32. Crusher; 33. Scraper; 4. Extruder; 5. Cooling head; 51. Water spray head; 52. Air intake hole; 6. Water guide pipe; 61. Water tank; 7. Air extraction component; 71. Air guide pipe; 8. Diverter component; 81. Rotating fan; 811. Fan blade; 8111. Protrusion; 82. Diverter pipe; 821. Annular groove; 822. Sensor; 83. Air outlet groove; 84. Baffle; 841. Air outlet. 842. Reset spring; 843. Limiting rod; 85. Moving plate; 86. Moving bucket; 9. Deep treatment box; 10. Light treatment box; 101. Recycling tube. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Reference Figures 1-5 As one embodiment of the present invention, a raw material heating and stirring device is provided. Specifically, the heating tank 1 contains a heating pipe 11, and a mixing tank 2 is also located inside the heating tank 1. A support frame 21 is mounted on the top of the mixing tank 2, and a support sleeve 22 is mounted on one side of the support frame 21. A bottom plate 23 is fixedly mounted on the bottom of the mixing tank 2, and a discharge hole 24 is pipe-through on one side of the bottom plate 23. An extruder 4 is mounted at the bottom of the heating tank 1. A stirring rod 3 is rotatably mounted on one side of the support sleeve 22. A spiral-ribbed pressing component 31 is mounted on the outer side of the stirring rod 3, and two sets of spiral-ribbed pressing components 31 are staggered. Multiple sets of crushing components 32 are also mounted on the outer side of the stirring rod 3, and the surface of the crushing components 32 is provided with multiple sets of crushing blades.

[0032] Furthermore, the raw materials enter the mixing tank 2, and the motor installed inside the bottom plate 23 is started, causing the mixing rod 3 to start rotating. As a result, the ribbon-type pressing component 31, the crushing component 32, and the scraping component 33 all rotate synchronously. When the ribbon-type pressing component 31 rotates, it pushes the material on the tank wall downward to form a large axial circulation. The crushing component 32 is located in the middle of the main shaft and is installed asymmetrically. When rotating at high speed, the sharp serrations tear and break up the material clumps to ensure uniform dispersion. The scraping component 33 is shaped to fit the conical / arc bottom of the tank. During rotation, it scrapes off any material that may be deposited at the bottom and throws it towards the middle flow zone. At the same time, it strongly disturbs the bottom material layer and enhances the heat exchange with the bottom heating surface.

[0033] Furthermore, a solenoid valve can be installed inside the discharge port 24.

[0034] Ideally, the combination of the ribbon-type pressure component, the crushing component, and the scraping component constitutes a multifunctional synergistic mixing system. The ribbon-type pressure component generates strong axial flow resistance, eliminating stratification. The crushing component provides high-intensity shearing, breaking up clumps and achieving micro-dispersion. The scraping component removes adhering material from the barrel walls and bottom, eliminating dead zones. Reference Figures 1-4 This is one embodiment of the present invention, which provides a device for cooling and absorbing exhaust gas.

[0035] Specifically, a cooling head 5 is provided on one side of the extruder 4. A water spray head 51 and an air suction hole 52 are provided at the bottom of the cooling head 5. Water guide pipes 6 are provided on both sides of the cooling head 5. A water tank 61 is connected to one side of the water guide pipes 6. An air extraction component 7 is provided at the top of the cooling head 5. Air guide pipes 71 are provided on both sides of the air extraction component 7.

[0036] Furthermore, the extruded high-temperature cable first enters the spray cooling section, where atomized water is sprayed out by the spray head 51 to efficiently absorb heat. At this time, some harmful gases are generated, which are absorbed by the suction port 52 for further processing.

[0037] Reference Figures 1-7 This invention provides a method for gas recovery and utilization, as one embodiment of the present invention. Specifically, a flow divider 8 is provided on one side of the air duct 71, and a rotating fan 81 is provided inside the flow divider 8. The rotating fan 81 includes several fan blades 811, and a protrusion 8111 is provided on one side of each fan blade 811. The protrusion 8111 is only provided on one side of one fan blade 811. A flow divider pipe 82 is provided on the outside of the rotating fan 81, and an annular groove 821 is provided inside the flow divider pipe 82. A sensor 822 is provided on one side of the annular groove 821. An air outlet groove 83 is provided on one side of the flow divider pipe 82, and a baffle is provided at the bottom of the flow divider pipe 82. A baffle plate 84 has an air outlet 841 through a tube on one side. A return spring 842 is provided on one side of the baffle plate 84. A limit rod 843 is provided on one side of the baffle plate 84. A movable plate 85 is fixedly provided on the outside of the limit rod 843. A movable barrel 86 is slidably provided on the outside of the movable plate 85. A mild treatment box 10 is connected to one side of the air outlet 83 through a conduit. A recovery pipe 101 is provided on one side of the mild treatment box 10. A deep treatment box 9 is connected to the other side of the recovery pipe 101. A diverter 8 is connected to one side of the deep treatment box 9.

[0038] When the gas flows into the diverter 8, it will drive the rotating fan 81 to rotate, and the sensor 822 can record the number of rotations of the rotating fan 81, that is, record the amount of gas processed; when the gas is in a low-pressure state, since the moving barrel 86 cannot overcome the limitation of the return spring 842, the gas can only be discharged through the gas outlet 83 and flow into the mild treatment box 10. When the gas pressure increases, the moving barrel 86 moves to overcome the restriction of the return spring 842. At this time, the moving barrel 86 is misaligned with the moving plate 85, and the slot opened in the moving barrel 86 is misaligned with the gas outlet slot 83, so that the gas can only flow into the deep processing box 9 through the gas outlet 841.

[0039] When the gas pressure is low, the concentration of volatile organic compounds (VOCs) in the exhaust gas is very low. If all the exhaust gas is allowed to pass through the deep treatment box 9, it will result in: insufficient adsorption power at low concentrations, uneconomical purification effect, premature occupation of the effective adsorption capacity of the adsorbent by the low-concentration exhaust gas, leading to frequent regeneration or replacement, and the fan still needs to overcome the resistance of the purification section to transport all the gas.

[0040] Preferably, the heat recovered by the mild treatment chamber 10 can be directly used for the regeneration of the adsorbent in the deep treatment chamber 9 through the recovery pipe 101. This design allows the purification system's operating status to be matched with the production load in real time, achieving an optimal balance between processing efficiency and operating costs. It solves the dilemma of traditional systems that either over-process or under-process. The waste heat generated during material cooling, as well as the heat released during adsorbent regeneration in the deep treatment chamber, are uniformly recovered and directly used in the material drying process. This creates an internal energy closed loop of "cooling waste heat → recovery → use for drying," significantly reducing or even completely replacing the external heat source (such as electricity or steam) required by traditional independent drying equipment, resulting in a significant reduction in overall energy consumption.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of the actual embodiments may be omitted, i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An extruder for wires and cables, characterized in that: include, Heating tank (1), heating pipe (11) inside heating tank (1), stirring tank (2) inside heating tank (1), a support frame (21) is provided on the top of stirring tank (2), a support sleeve (22) is provided on one side of the support frame (21), a bottom plate (23) is fixedly provided on the bottom of stirring tank (2), a discharge hole (24) is provided on one side of the bottom plate (23), and an extruder (4) is provided on the bottom of heating tank (1).

2. The extruder for wires and cables according to claim 1, characterized in that: A stirring rod (3) is rotatably provided on one side of the support sleeve (22), and a spiral-type pressing component (31) is provided on the outer side of the stirring rod (3). The spiral-type pressing component (31) is provided in two sets of staggered arrangement.

3. The extruder for wires and cables according to claim 2, characterized in that: The outside of the stirring rod (3) is also provided with a crushing component (32), which is provided in multiple sets and is staggered, and the surface of the crushing component (32) is provided with multiple sets of crushing blades.

4. The extruder for wires and cables according to claim 1, characterized in that: A cooling head (5) is provided on one side of the extruder (4), and a water spray head (51) and an air suction hole (52) are provided at the bottom of the cooling head (5).

5. The extruder for wires and cables according to claim 4, characterized in that: Water pipes (6) are provided on both sides of the cooling head (5), and a water tank (61) is connected to one side of the water pipes (6). An air extraction device (7) is provided on the top of the cooling head (5), and air extraction devices (71) are provided on both sides of the air extraction device (7).

6. The extruder for wires and cables according to claim 5, characterized in that: A flow divider (8) is provided on one side of the air duct (71), and a rotating fan (81) is provided inside the flow divider (8). The rotating fan (81) includes a plurality of fan blades (811), and a protrusion (8111) is provided on one side of the fan blades (811). The protrusion (8111) is only provided on one side of one of the fan blades (811).

7. The extruder for wires and cables according to claim 6, characterized in that: A diversion pipe (82) is provided on the outside of the rotating fan (81), and an annular groove (821) is provided inside the diversion pipe (82). A sensor (822) is provided on one side of the annular groove (821).

8. The extruder for wires and cables according to claim 7, characterized in that: A vent groove (83) is provided on one side of the diversion pipe (82), a baffle (84) is provided at the bottom of the diversion pipe (82), a vent hole (841) is provided on one side of the baffle (84), and a reset spring (842) is provided on one side of the baffle (84).

9. The extruder for wires and cables according to claim 8, characterized in that: A limiting rod (843) is provided on one side of the baffle (84), a movable plate (85) is fixedly provided on the outside of the limiting rod (843), and a movable bucket (86) is slidably provided on the outside of the movable plate (85).

10. The extruder for wires and cables according to claim 8, characterized in that: One side of the air outlet (83) is connected to a light treatment box (10) via a conduit. A recovery pipe (101) is provided on one side of the light treatment box (10). A deep treatment box (9) is connected to the other side of the recovery pipe (101). A diverter (8) is connected to one side of the deep treatment box (9).

Images