A cable shield layer extruder diverter die and a cable shield layer extruder

Abstract

The application relates to the technical field of cable outer shielding layer extrusion forming equipment, and particularly discloses a cable shielding layer extruder flow divider die and a cable shielding layer extruder, which comprises a discharging section, one end of the discharging section is provided with a glue flow channel, the glue flow channel surrounds the outer periphery of the discharging section, the glue flow channel is provided with a feeding end and a glue merging end, glue forms a closed loop in the glue flow channel and flows out from the outer periphery of the discharging section in the extrusion direction, the glue flow channel comprises a pair of branches, the two ends of the pair of branches respectively intersect with each other to form the feeding end and the glue merging end, and a flow slowing structure is arranged between the side wall of the side of the glue merging end close to the discharging section and the discharging section. The structure can improve the sufficiency of fusion at the glue merging position, so that glue merging seams can be effectively avoided in the process of cable outer shielding layer extrusion forming.

Description

Technical Field

[0001] This invention relates to the field of cable outer shielding layer extrusion molding equipment, and in particular to a cable shielding layer extruder diverter mold and a cable shielding layer extruder. Background Technology

[0002] In the structure of medium-voltage power cables of 35kV and below, the insulation shield (outer shield) is a key component to ensure the safe operation of the cable. Its function is to distribute the electric field evenly, eliminate the concentration of electric field on the insulation surface, and avoid problems such as insulation breakdown and electrical treeing caused by excessive local field strength. It directly determines the long-term operational stability and service life of the cable.

[0003] The extruder head is a key piece of equipment in the extrusion process of wire and cable conductor insulation layers or core sheaths. Its main function is to evenly distribute the molten plastic to be coated on the conductor or core in the flow channel, so that the molten plastic is extruded from the die head at a uniform speed and pressure to form the required cross-sectional shape and size. The flow channel of the extruder head is integrated into the distributor, and the flow channel design of the distributor is the key to the extruder head design. The rationality of its structural design directly affects the quality of the extruded cable and the production efficiency.

[0004] The extrusion molding quality of the outer shielding layer, especially the control of the glue joint, is one of the core challenges in the production process of medium-voltage cross-linked cables. Currently, the extrusion process for the outer shielding in the industry generally uses a traditional splitter structure, where the junction between the discharge section and the glue joint end has a sharp-angle collision structure. Splitters with this structure are prone to glue joints at the glue joint position.

[0005] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0006] The purpose of this invention is to provide a cable shielding layer extruder diverter mold and a cable shielding layer extruder, so as to effectively avoid the formation of glue seams during the extrusion molding process of the cable outer shielding layer.

[0007] To achieve this objective, the present invention adopts the following technical solution: A flow divider mold for a cable shielding extruder includes an outlet section. One end of the outlet section has a rubber flow channel that surrounds the outer periphery of the outlet section. The rubber flow channel has an inlet end and a merging end. The rubber forms a closed loop in the rubber flow channel and flows out from the outer periphery of the outlet section along the extrusion direction. The rubber flow channel includes a pair of branches. The two ends of the pair of branches intersect to form the inlet end and the merging end, respectively. A flow-retarding structure is provided between the sidewall of the merging end near the outlet section and the outlet section.

[0008] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the flow-retarding structure includes a transition edge located at the junction of the discharge section and the glue-binding end, wherein the transition edge is an arc-shaped curve bending toward the discharge section.

[0009] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the flow-retarding structure includes a flow-retarding protrusion that extends from the glue-closing end to the discharge section, and the flow-retarding protrusion protrudes from the side of the discharge section.

[0010] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the slow-flow protrusion is provided with a discharge guide slope and a feed guide slope that are respectively connected to the discharge section and the glue-combining end, and the discharge guide slope and the feed guide slope intersect smoothly.

[0011] As a preferred option for the distributor mold of the cable shielding extruder, the length of the feed guide slope is shorter than the length of the discharge guide slope in the extrusion direction.

[0012] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the feed guide slope extends in an outwardly convex arc shape, and the discharge guide slope extends in a planar shape.

[0013] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the slow-flow protrusion is provided with lateral flow guide slopes on both sides, and a pair of lateral flow guide slopes are connected to the two sides of the discharge flow guide slope and the feed flow guide slope, and the lateral flow guide slopes intersect smoothly with the discharge flow guide slope.

[0014] As a preferred embodiment of the distributor mold for a cable shielding extruder, the depth of the branch channel varies from deep to shallow from the feed end to the glue-combining end.

[0015] As a preferred option for the distributor mold of the cable shielding extruder, in the extrusion direction, the feed end and the glue-combining end are located at the rear end and the front end of the glue flow channel, respectively.

[0016] As a preferred embodiment of the distributor mold for a cable shielding extruder, the pair of branches are arranged in a mirror-symmetrical configuration.

[0017] As a preferred embodiment of the flow divider mold for a cable shielding extruder, the feed end is provided with a flow divider protrusion, and a pair of symmetrically arranged flow divider slopes are provided on both sides of the flow divider protrusion. The pair of flow divider slopes are respectively connected to the ends of a pair of branch channels one by one.

[0018] As a preferred embodiment of the flow divider mold for a cable shielding extruder, a flow-gathering tip is provided on the side wall of the glue-binding end away from the discharge section, and the flow-gathering tip points towards the middle of the slow-flow structure along the extrusion direction.

[0019] A cable shielding extruder includes the cable shielding extruder distributor mold.

[0020] Compared with the prior art, the cable shielding layer extruder diverter mold and cable shielding layer extruder provided by the present invention have the following advantages: 1. Due to the slow-flow structure, the flow velocity of the material at the confluence is effectively reduced, avoiding the impact and turbulence caused by excessive flow velocity, thereby improving the fullness of the bonding at the joint, avoiding the formation of bonding seams, and improving the forming quality of the cable shielding layer.

[0021] 2. Compared to traditional distributor channels, where the junction between the discharge section and the bonding end has a sharp-angle collision structure, this invention features an arc-shaped transition edge, forming a rounded transition bonding structure. The adhesive no longer fuses through high-speed collisions at sharp angles, but rather achieves smooth and gentle fusion along the arc surface. This significantly reduces the impact and turbulence during adhesive fusion, allowing the adhesive molecular chains to fully fuse without severe shearing or impact. This avoids bonding seams caused by inconsistent molecular chain orientation and also reduces the risk of overheating during adhesive shearing, ensuring the stable performance of the outer screen material.

[0022] 3. Adding a flow-slowing protrusion to the transition edge can buffer and release the impact pressure of the rubber compound during the bonding process, avoiding local pressure concentration. At the same time, the stepped structure can guide the rubber compound to flow smoothly along the stepped surface after bonding, further eliminating turbulence and backflow of the rubber compound. This not only alleviates the pressure concentration problem at the bonding location, but also avoids the impact of pressure fluctuations on the bonding of the rubber compound, further improving the uniformity and stability of the bonded mixture.

[0023] 4. The flow channel (branch channel) of the distributor is designed with a gradually decreasing depth structure. The depth of the channel gradually decreases from the feed end to the bonding end in a linear or stepped manner. This design allows the rubber material to improve the accuracy of flow distribution and the uniformity of flow velocity during the flow channel transportation process. This ensures that the flow velocity and pressure of each stream of rubber material are consistent when it reaches the bonding position, avoiding insufficient bonding caused by differences in flow velocity and pressure, and reducing the conditions for the formation of bonding gaps. Attached Figure Description

[0024] Figure 1 This is a front plan view of a cable shielding extruder distributor (without a flow-retarding protrusion) according to an embodiment of the present invention; Figure 2 yes Figure 1 Right view of the cable shield extruder splitter in the middle; Figure 3 yes Figure 1 Left view of the cable shielding extruder distributor in the image; Figure 4 In one embodiment of the present invention, a cable shielding layer extruder diverter (with a flow-slowing protrusion) is used in... Figure 3 A planar diagram from a specific perspective; Figure 5 yes Figure 4 A magnified view of a portion of region A in the middle; Figure 6 yes Figure 4 Cross-sectional view along the BB direction; Figure 7 yes Figure 6 A magnified view of a portion of region B in the middle.

[0025] In the picture: 1-Discharge section; 2- Material flow channel; 201- Feed inlet; 2011- Diverting protrusion; 2012- Diverting slope; 202- Compounding end; 203- Transition edge; 204- Slow flow protrusion; 2041- Discharge guide slope; 2042- Feed guide slope; 2043- Lateral guide slope; 2044- Boundary line; 205- Convergence tip; 21- Branch channel; 3- Installation section; 31- Connecting step; a-Extrusion direction. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0027] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0030] Example 1 Combination Figures 1 to 3 As shown, this embodiment provides a cable shielding layer extruder diverter mold. The cable shielding layer extruder diverter mold includes a discharge section 1. One end of the discharge section 1 is provided with a rubber flow channel 2. The rubber flow channel 2 surrounds the outer periphery of the discharge section 1. The rubber flow channel 2 has a feed end 201 and a rubber-binding end 202. The rubber forms a closed loop in the rubber flow channel 2 and flows out from the outer periphery of the discharge section 1 along the extrusion direction a.

[0031] Specifically, the rubber flow channel 2 includes a pair of branches 21, the two ends of which intersect to form a feed end 201 and a rubber mixing end 202, and a slow-flow structure is provided between the side wall of the rubber mixing end 202 near the discharge section 1 and the discharge section 1.

[0032] Based on the aforementioned cable shielding extruder distributor mold, during the cable shielding extrusion process, the molten rubber enters from the feed end 201 and is diverted and conveyed along a pair of branch channels 21. At the bonding end 202, the molten rubber converges to form a closed loop. The entire closed-loop rubber is then continuously extruded from the rubber flow channel 2 along the extrusion direction towards the discharge section 1, thereby forming a circumferentially closed tubular sleeve. Due to the presence of the slow-flow structure, the flow velocity of the rubber at the confluence point is effectively reduced, avoiding impact and turbulence caused by excessive flow velocity. This improves the fusion at the bonding point, preventing bonding seams and improving the forming quality of the cable shielding layer.

[0033] Combination Figure 3As shown, in one embodiment, the slow-flow structure includes a transition edge 203, which is located at the junction of the discharge section 1 and the bonding end 202. The transition edge 203 is arc-shaped, curving towards the discharge section. Compared to the traditional distributor channel, the junction between the discharge section 1 and the bonding end 202 has a sharp-angle collision structure. In this embodiment, an arc-shaped transition edge 203 is provided at the junction of the discharge section 1 and the bonding end 202, forming a circular arc transition bonding structure. The adhesive no longer fuses through high-speed collisions at sharp corners, but achieves smooth and gentle merging along the circular arc surface, significantly reducing the impact and turbulence during adhesive fusion. This allows the adhesive molecular chains to fully fuse without severe shearing or impact, avoiding bonding seams formed due to inconsistent molecular chain orientation. It also reduces the risk of overheating during adhesive shearing, ensuring the stable performance of the cable shielding layer after molding. In one embodiment, the transition edge 203 extends in a slope direction from the bonding end 202 to the discharge section 1.

[0034] Combination Figures 4 to 7 As shown, in another embodiment, the flow-retarding structure includes a flow-retarding protrusion 204, which extends from the bonding end 202 to the discharge section 1, protruding from the side of the discharge section 1. Specifically, in this embodiment, the flow-retarding protrusion 204 is located at the center of the transition edge 203. Adding a flow-retarding protrusion 204 to the transition edge 203, exemplarily, the height of the flow-retarding protrusion 204 ranges from 0.5 to 1.5 mm, preferably 1 mm, can buffer and release the impact pressure during the bonding process, avoiding localized pressure concentration. Simultaneously, the stepped structure guides the adhesive to flow smoothly along the stepped surface after bonding, further eliminating turbulence and backflow of the adhesive. This alleviates the pressure concentration problem at the bonding location and avoids the impact of pressure fluctuations on adhesive fusion, further improving the uniformity and stability of the bonded material. Preferably, the slow-flow protrusion 204 is provided with a discharge guide slope 2041 and a feed guide slope 2042, which are respectively connected to the discharge section 1 and the bonding end 202. The discharge guide slope 2041 and the feed guide slope 2042 intersect smoothly. The feed guide slope 2042 and the discharge guide slope 2041 are used to guide the rubber material from the bonding end 202 into the discharge section 1, so that the rubber material can smoothly transition when flowing through the slow-flow protrusion 204, avoiding the generation of new flow dead zones or eddies due to the stepped structure, and ensuring that the rubber material can smoothly transition when passing through the slow-flow protrusion.

[0035] As a preferred option, such as Figure 5As shown, in the extrusion direction a, the length of the feed guide slope 2042 is less than the length of the discharge guide slope 2041. Therefore, this creates a slow-flow guidance during the feeding process and a gradual release of flow velocity during the discharge process, further optimizing the flow state of the rubber compound after compounding and avoiding secondary turbulence caused by sudden changes in flow velocity. Through this differentiated slope design, the rubber compound achieves more precise flow velocity control between the compounding end and the discharge section, ensuring both sufficient fusion in the initial compounding stage and stable conveying during the discharge stage, thereby improving the overall uniformity of rubber compound flow and the stability of product quality. Specifically, combined with... Figure 7 As shown, the feed guide slope 2042 is a convex arc-shaped surface, while the discharge guide slope 2041 is a flat surface. Given a fixed axial dimension of the distributor mold corresponding to the guide slope 2042, the convex arc-shaped extension of the guide slope 2042 effectively improves flow resistance efficiency and, as a whole, buffers and guides the rubber material entering the slow-flow protrusion, allowing it to enter the step area with a smoother flow. Meanwhile, the flat extension structure of the discharge guide slope 2041 allows the rubber material to quickly regain stable flow after leaving the step, avoiding new flow disturbances caused by the step structure. Through the cooperation of the feed and discharge guide slopes, the flow of the rubber material at the slow-flow protrusion is smoother, further improving the stability and uniformity of the compounding process.

[0036] As a preferred option, combined with Figure 5As shown, lateral guide slopes 2043 are provided on both sides of the slow-flow protrusion 204. A pair of lateral guide slopes 2043 connect the two sides of the discharge guide slope 2041 and the feed guide slope 2042. The lateral guide slopes 2043 and the discharge guide slope 2041 intersect smoothly to form a continuous guide surface. The lateral guide slopes 2043 can effectively constrain and guide the flow of the rubber material on both sides of the slow-flow protrusion 204, avoiding stagnation or deviation of the rubber material at the edges of the steps, and further improving the uniformity and controllability of the rubber material flow between the mixing end and the discharge section. The rubber material converges from the lateral guide slopes 2043 and the feed guide slope 2042 into the discharge guide slope 2041, thereby forming a stable flow state at the discharge guide slope 2041, further improving the flow uniformity of the rubber material in the discharge stage. Through the coordinated operation of the lateral guide slope 2043, the feed guide slope 2042, and the discharge guide slope 2041, the rubber compound achieves three-dimensional flow control at the slow-flow protrusion 204, further improving the overall flow quality of the compounding process. Specifically, the lateral guide slope 2043 is a convex arc-shaped surface. The bottom of the lateral guide slope 2043 intersects with the transition edge 203 to form a boundary line 2044. In the extrusion direction a, the extension direction of the boundary line 2044 gradually converges towards the center of the transition edge 203 at the end of the discharge guide slope 2041 near the discharge section 1. Through this convergence design, the lateral guide slope 2043 can gradually guide the rubber compound on both sides to the central compounding area in the extrusion direction, avoiding uneven flow or stagnation dead zones on both sides of the step, thereby further improving the overall flow uniformity of the compounding process.

[0037] Preferably, in this embodiment, the depth of the branch channel 21 varies from deep to shallow from the feed end 201 to the bonding end 202. Exemplarily, the depth of the branch channel 21 gradually decreases from deep to shallow in a linear or stepped manner. This design improves the accuracy of flow distribution and the uniformity of flow rate during the conveying process of the adhesive, enhances the consistency of flow rate and pressure of each adhesive stream when it reaches the bonding position, and avoids insufficient bonding caused by differences in flow rate and pressure, thereby reducing the conditions for bonding seams to form.

[0038] As a preferred embodiment, in this case, Figure 1 As shown, in the extrusion direction a, the feed end 201 and the compounding end 202 are located at the rearmost and frontmost ends of the material flow channel 2, respectively. Therefore, the direction from the feed end 201 to the compounding end 202 is axially aligned with the extrusion direction a to ensure the quality of the extrusion molding. It should be noted that the extrusion direction a corresponds to the axial direction of the discharge section 1 from the feed direction to the discharge direction.

[0039] Preferably, in this embodiment, the pair of branch channels 21 are arranged in a mirror-symmetrical manner. Therefore, as Figure 1As shown, on the discharge section 1, the feed end 201 is located on the opposite side of the glue-combining end 202, that is, each branch channel 21 intersects after circling half a circle around the outer perimeter of the discharge section 1.

[0040] Preferably, in this embodiment, the feed end 201 is provided with a diversion protrusion 2011, and a pair of symmetrically arranged diversion slopes 2012 are provided on both sides of the diversion protrusion 2011. The pair of diversion slopes 2012 are respectively connected to the ends of a pair of branch channels 21. During the feeding process, the colloid is diverted by the diversion protrusion 2011 and guided into the corresponding branch channels 21 through the diversion slopes 2012, so as to ensure that the colloid is evenly distributed in the flow channels on both sides, avoid the phenomenon of flow deviation or stagnation, thereby improving the flow stability and molding quality.

[0041] Preferably, in this embodiment, the bonding end 202 is provided with a confluence tip 205. The confluence tip 205 is located on the edge of the bonding end 202 away from the discharge section 1, and points towards the center of the junction between the bonding end 202 and the discharge section 1 along the extrusion direction a, directly facing the slow-flow structure. It should be noted that traditional flow channel designs often adopt a structure with parallel edges on both sides. Therefore, it is often impossible to balance the sufficiency of flow rate and the sufficiency of rubber material fusion, making it difficult to eliminate bonding gaps. In this embodiment, the structure of the two edges of the flow channel is non-parallel. Through the synergistic cooperation of the confluence tip 205 and the slow-flow structure, the confluence tip 205 is used to guide and converge the melt on both sides before it flows into the discharge section 1, reducing the flow dead zone to ensure the continuity of flow rate at the bonding position. The slow-flow structure enables the rubber molecular chains to fully fuse without severe shearing or impact, thereby balancing the sufficiency of rubber material delivery and fusion at the bonding position.

[0042] Preferably, the cable shielding extruder distributor mold also includes an installation section 3, which is located at the end of the discharge section 1 near the material flow channel 2. The edge where the installation section 3 and the material flow channel 2 meet is higher than the side of the discharge section 1. That is, in axial projection, the discharge section 1 is inside the contour of the installation section 3, and the height difference between the installation section 3 and the discharge section 1 corresponds to the thickness of the material discharged from the discharge section 1. Specifically, the axial projection contours of the installation section 3 and the discharge section 1 are circular. In this embodiment, the discharge section 1 and the installation section 3 are coaxially arranged, and the end of the installation section 3 away from the discharge section 1 is provided with a connecting step 31 for connecting to the extruder head.

[0043] Based on the aforementioned cable shielding extruder distributor mold, during the production process, the rubber material enters the distributor's gradually changing material flow channel 2 from the extruder. As it flows from the feed end 201 to the mixing end 202, it passes through the branch channels 21, whose depth gradually decreases, achieving uniform adjustment of flow rate, velocity, and pressure. Subsequently, at the mixing end 202, it smoothly merges along the arc-shaped mixing slow-flow structure formed by the transition edge 203. The impact pressure at the moment of mixing is effectively released through the slow-flow structure formed by the 1mm slow-flow protrusion, ultimately resulting in uniform and stable extrusion molding. This structural design optimizes the entire process from rubber material delivery, mixing, and pressure release. It eliminates the mixing seam defects caused by sharp corners in traditional molds, alleviates the pressure concentration problem at the mixing location, and avoids problems such as excessive shearing and degradation of the rubber material. Through extrusion production verification of the outer shield of medium-voltage cross-linked cables of various specifications, the shunt mold can completely eliminate the defects of the glue seam in the outer shield layer. The surface of the formed outer shield layer is smooth and uniform, with no obvious glue traces, meeting the process quality requirements of the outer shield layer of medium-voltage cables. At the same time, since the pressure at the glue seam is effectively reduced, the wear of the shunt can be significantly reduced, resulting in a significant increase in service life. In addition, there is no need to reduce the extrusion speed due to glue seam problems during the production process, which can effectively improve production efficiency and significantly improve the consistency of product quality between batches, effectively reducing subsequent rework and scrap costs. At the same time, it reduces the additional material consumption for covering glue seams, reducing production and maintenance costs, and can fully meet the high-efficiency, stable, and high-quality production requirements of the outer shield layer of 35kV and below medium-voltage cross-linked power cables.

[0044] Example 2 A cable shielding extruder (not shown) includes the cable shielding extruder distributor mold of Example 1.

[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cable shielding layer extruder diverter mold, comprising an outlet section (1), one end of which is provided with a rubber flow channel (2), the rubber flow channel (2) surrounding the outer periphery of the outlet section (1), the rubber flow channel (2) having an inlet end (201) and a rubber-closing end (202), wherein the rubber forms a closed loop in the rubber flow channel (2) and flows out from the outer periphery of the outlet section (1) along the extrusion direction (a), characterized in that: The rubber flow channel (2) includes a pair of branches (21), and the two ends of the pair of branches (21) intersect each other to form the feed end (201) and the rubber mixing end (202). The side wall of the rubber mixing end (202) near the discharge section (1) is provided with a slow flow structure between the discharge section (1) and the discharge section (1).

2. The cable shielding layer extruder distributor mold according to claim 1, characterized in that: The slow-flow structure includes a transition edge (203), which is located at the junction of the sidewall of the discharge section (1) and the glue-binding end (202). The transition edge (203) is an arc-shaped curve that bends toward the discharge section (1).

3. The cable shielding layer extruder distributor mold according to claim 1 or 2, characterized in that: The slow-flow structure includes a slow-flow protrusion (204) that extends from the glue-binding end (202) to the discharge section (1) and protrudes from the side of the discharge section (1).

4. The cable shielding layer extruder distributor mold according to claim 3, characterized in that: The slow-flow protrusion (204) is provided with a discharge guide slope (2041) and a feed guide slope (2042). The discharge guide slope (2041) is connected to the discharge section (1), and the feed guide slope (2042) is connected to the glue-closing end (202). The discharge guide slope (2041) and the feed guide slope (2042) intersect smoothly.

5. The cable shielding layer extruder distributor mold according to claim 4, characterized in that: In the extrusion direction (a), the length of the feed guide slope (2042) is less than the length of the discharge guide slope (2041).

6. The cable shielding layer extruder distributor mold according to claim 4, characterized in that: The slow-flow protrusion (204) is provided with lateral guide slopes (2043) on both sides, and a pair of lateral guide slopes (2043) are connected to the two sides of the discharge guide slope (2041) and the feed guide slope (2042).

7. The cable shielding layer extruder distributor mold according to claim 1 or 2, characterized in that: The depth of the branch channel (21) changes from deep to shallow from the feed end (201) to the glue-coating end (202).

8. The cable shielding layer extruder distributor mold according to claim 1 or 2, characterized in that: In the extrusion direction (a), the feed end (201) and the compounding end (202) are located at the rear end and the front end of the material flow channel (2), respectively.

9. The cable shielding layer extruder distributor mold according to claim 1 or 2, characterized in that: The glue-binding end (202) has a confluence tip (205) on the side wall away from the discharge section (1), and the confluence tip (205) points to the middle of the slow-flow structure along the extrusion direction (a).

10. A cable shielding layer extruder, characterized in that: Includes the cable shield extruder diverter mold as described in any one of claims 1-9.

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