A production method and device for heat-resistant cross-linked polyethylene control cable

Abstract

The present invention relates to the field of cable production, and in particular to a production method and device for a heat-resistant cross-linked polyethylene control cable, wherein the device comprises: a plurality of cable coating groups for performing basic coating on a single core; a twister for twisting cables into a core group of a control cable; a secondary coating group for performing secondary coating on the core; coating a single core to form a corresponding coated core, twisting the core aggregate with the coated core to form a core group, coating the core group to form a coated core group, wrapping the coated core group to form a control cable, controlling the flow rate and flow of the material, enabling the material to be output stably and evenly, making the feeding more time-saving and labor-saving, reducing the safety hazard of a fire in the control cable, and reducing the difficulty of rescue during firefighting.

Description

Technical Field

[0001] The invention relates to the field of cable production, and in particular to a production method and device for a temperature-resistant cross-linked polyethylene control cable. Background Art

[0002] With the advancement of modern science and technology, control cables are widely used in remote control circuits of power plants, substations, factories, petrochemical enterprises, etc. due to their simple structure, easy process and low cost. They can also be used as connecting wires between electrical instruments and automation devices to transmit power and signals. The existing control cables have poor high temperature resistance and waterproof performance and cannot meet the use requirements.

[0003] Chinese Patent Publication No.: CN103123818A discloses a multi-layer protective low-smoke halogen-free flame-retardant fire-resistant control cable and its manufacturing method, which belongs to the field of control cable manufacturing technology. The technical scheme is: the copper conductor 1 is provided with a fire-resistant mica layer 2 and a cross-linked polyethylene insulation layer 3 in sequence on the outside, and the cable is provided with a polyester film tape 4, a metal shielding layer 5, an inner protective layer I 6, an inner protective layer II 7, an inner protective layer III 8, a metal armor layer 9 and an outer protective layer 10 in sequence on the outside; the present invention adopts the method of aluminum tape embossing + double-layer co-extrusion to improve the work efficiency and the quality of the longitudinal aluminum tape and extruded nylon; 105°C irradiated cross-linked polyethylene insulation is used to improve the temperature resistance level of the cable, good mechanical properties, small dielectric constant and dielectric loss tangent value, and excellent insulation electrical properties. The use of corrugated longitudinal aluminum tape can effectively prevent water or moisture from entering the cable, and at the same time has a good shielding effect, ensures the bending performance of the cable, and facilitates the installation and use of the cable.

[0004] However, the above method has the following problems: the use environment of the cable cannot be accurately detected, and the tolerance of the cable during use cannot be improved by simply changing the material formula, thereby affecting the performance of the cable. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides a method and device for producing a heat-resistant cross-linked polyethylene control cable, which is used to overcome the problem in the prior art that the use environment of the cable cannot be accurately detected, and the tolerance of the cable during use cannot be improved by simply changing the formula of the heat-resistant cross-linked polyethylene material, thereby affecting the performance of the cable.

[0006] In one aspect, the present invention provides a method for producing a heat-resistant cross-linked polyethylene control cable, which comprises the step of coating the cable, including:

[0007] Step S1, detecting the thickness of a single wire core, and coating the wire core to form a corresponding coated wire core;

[0008] Step S2, adding wire core aggregate, and twisting the wire core aggregate with the coated wire core to form a wire core group, and detecting the total diameter;

[0009] Step S3, coating the wire core group to form a coated wire core group, and performing secondary coating on the wire core group according to the thickness of a single wire core and the total diameter;

[0010] Step S4, wrapping the coated wire core group to a standard diameter to form a control cable;

[0011] Wherein, the wire core aggregate comprises a plastic wire core made of phase change material;

[0012] The coating is to coat the wire core in layers using water-blocking glue and liquid insulating material;

[0013] In the step S3, the coating material used to coat the core group is the remaining liquid insulating material.

[0014] Furthermore, in the step S1, the diameter of the single wire core is detected, and the liquid insulating material coated with a preset thickness is coated on the single wire core, and the dripping liquid insulating material is collected as the remaining liquid insulating material.

[0015] When the liquid insulating material is coated to a preset coating thickness, the water-blocking glue is wound onto the single wire core to form the coated wire core.

[0016] Furthermore, in the step S2, it also includes:

[0017] The wire core aggregate and the coated wire core are stacked in a preset state at a preset density and twisted to form a wire core group;

[0018] The twisting is to pull the front end of the wire core aggregate into the cable, and the twister twists the cable with the wire core aggregate as the axis, and detects the total diameter.

[0019] Furthermore, in the step S3, the core group is coated by dripping and coating the liquid insulating material and / or the remaining liquid insulating material on the core group, and the core group is rotated at a preset speed. When the core group rotates one circle, the water-blocking glue is wrapped around the coated part of the core group to form the coated core group.

[0020] Furthermore, the coating equipment in step S3 is the same as the coating equipment in step S1, and the coated wire core group utilizes the collected residual water-blocking glue and liquid insulating material, and performs secondary coating on the wire core group according to the single wire core thickness and the total wire diameter to form the coated wire core group.

[0021] Furthermore, in the step S4, the coated wire core group is wrapped to a standard diameter, and the coated wire core group is divided according to a preset length, and the coated wire core group is closed at the divisions to form a plurality of division spaces.

[0022] Furthermore, in the step S4, when forming the control cable, the phase change material particles are also filled into the wrapped cable.

[0023] In another aspect, the present invention provides a production device for a heat-resistant cross-linked polyethylene control cable, comprising:

[0024] Several cable coating groups, which are used to perform basic coating on single wire cores;

[0025] A twister, which is used to twist the cables into a core group of the control cable;

[0026] A secondary coating group, used for performing secondary coating on the wire core;

[0027] Wherein, the basic coating is to coat a single wire core with water-blocking glue and liquid insulating material;

[0028] The wire core group comprises a wire core and an insulating wire bundle.

[0029] Further, a single coating group in the production device includes a cylinder and a feed box fixed on a first bracket, wherein the feed box has two cavities built therein, including a left cavity and a right cavity, and the cylinder is used to provide air pressure to the feed box;

[0030] The coating machine is fixed on the second bracket, and both ends of the coating machine are equipped with coating molds for coating the cable;

[0031] The left cavity of the feed box is connected to the coating machine through a first pipeline, a first control valve is provided on the first pipeline, and the right cavity of the feed box is connected to the coating machine through a second pipeline, a second control valve is provided on the second pipeline;

[0032] The coating machine is radially provided with a first feed hole correspondingly connected to the first pipeline outlet and a second feed hole correspondingly connected to the second pipeline outlet;

[0033] The coating machine is connected with a third pipeline, the end of the third pipeline is provided with a discharge port, and the third pipeline is provided with a third control valve;

[0034] The cylinder can provide a stable pressure to each feed box at a preset rate.

[0035] Furthermore, the coating machine includes a bottom plate, parallel guide rails arranged on both sides of the bottom plate, a cross frame installed on the parallel guide rails, a height controller arranged close to the cross frame, and,

[0036] A collector connected to the bottom plate and used to collect the uniform water-blocking glue and liquid insulating material after treatment;

[0037] Wherein, a scraper is provided at one end of the horizontal frame close to the bottom plate.

[0038] Compared with the prior art, the present invention utilizes core coating of a single core to form a corresponding coated core, and twists the core aggregate with the coated core to form a core group, coats the core group to form a coated core group, and wraps the coated core group to form a control cable, thereby controlling the flow rate and flow of the material, enabling stable and uniform output of the material, making feeding more time-saving and labor-saving, reducing the safety hazard of fire in the control cable, and reducing the difficulty of rescue during firefighting.

[0039] Furthermore, by adding core aggregates into the coated cores, the core group twisting effect can be improved, making the adding of aggregates more time-saving and labor-saving.

[0040] Furthermore, by coating a liquid insulating material of a preset thickness on a single wire core, the potential safety hazard of a fire in the control cable is reduced, and the difficulty of rescue during firefighting is reduced.

[0041] Furthermore, by collecting the dripping liquid insulating material as the remaining liquid insulating material, the utilization rate of the liquid insulating material is improved, the waste of the material is avoided, and the cost is saved.

[0042] Furthermore, by coating the wire core group with water-blocking glue and liquid insulating material for a second time, the water-blocking insulating material can be made to fit the control cable more closely, thereby reducing the potential safety hazard of a fire in the control cable and reducing the difficulty of rescue during firefighting.

[0043] Furthermore, by setting up a coating group, the water-blocking glue and liquid insulating material with a lower melting point are evenly coated on the conductor surface, the flow rate and flow rate of the material are controlled, the material can be output stably and evenly, and the feeding is more time-saving and labor-saving.

[0044] Furthermore, by providing a collector, overflow of the material in the coating group is prevented, thereby further improving the utilization rate of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a flow chart of the production method of the heat-resistant cross-linked polyethylene control cable of the present invention;

[0046] Figure 2It is a connection diagram of a production device according to an embodiment of the present invention;

[0047] Figure 3 Schematic diagram of the connection of the coating group according to an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0050] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0051] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] See also Figure 1 As shown, it is a flow chart of the production method of the heat-resistant cross-linked polyethylene control cable of the present invention, comprising:

[0053] Step S1, detecting the thickness of a single wire core, and coating the wire core to form a corresponding coated wire core;

[0054] Step S2, adding wire core aggregate, and twisting the wire core aggregate with the coated wire core to form a wire core group, and detecting the total diameter;

[0055] Step S3, coating the wire core group to form a coated wire core group, and performing secondary coating on the wire core group according to the thickness of a single wire core and the total wire diameter;

[0056] Step S4, wrapping the coated wire core group to a standard diameter to form a control cable;

[0057] Wherein, the wire core aggregate comprises a plastic wire core made of phase change material;

[0058] The coating is to coat the wire core in layers using water-blocking glue and liquid insulating material;

[0059] In step S3, the coating material used to coat the core group is the remaining liquid insulating material.

[0060] In a specific implementation, a micrometer is used to measure the diameter of a single wire core and the total wire diameter.

[0061] By adding core aggregate to the coated core, the core group twisting effect can be improved, making the adding of aggregate more time-saving and labor-saving.

[0062] Specifically, in step S1, the diameter of a single wire core is detected, and a liquid insulating material coated with a preset thickness is coated on the single wire core, and the dripping liquid insulating material is collected as the remaining liquid insulating material.

[0063] When the liquid insulating material is coated to a preset coating thickness, the water-blocking glue is wound onto a single wire core to form a coated wire core.

[0064] For a single control cable, the coated core is measured several times. For the i-th measurement, the diameter of the coated core is Φi, where i=1,2,3,…,n, and n is the maximum number of measurements. Usually, the number is positively correlated with the length of the cable. The central control module is provided with a minimum core diameter Φα and a core diameter threshold Φβ, where 0<Φα<Φβ. The minimum core diameter Φα is the minimum value of a single core that meets the production requirements, and the core diameter threshold Φβ is the maximum value of a single core diameter of the control cable. By comparing Φi with Φα and Φβ, the secondary coating method of the core group is determined.

[0065] If Φi≤Φα, it is determined that the secondary coating of the wire core group at the corresponding position of the i-th measurement is the added coating;

[0066] If Φα<Φi≤Φβ, the secondary coating of the wire core group at the corresponding position of the i-th measurement is determined to be conventional coating;

[0067] If Φβ<Φi, it is determined that the secondary coating of the wire core group at the corresponding position of the i-th measurement is reduced coating.

[0068] In particular, the above measurements are performed on the cores of a single control cable arranged continuously, such as:

[0069] A control cable includes three cores, called A, B, and C. The cores A, B, and C are measured in sequence every 0.2s:

[0070] At 0s, measure the A core and mark this as the first measurement;

[0071] At 0.2s, measure the B core and mark this as the second measurement;

[0072] At 0.4s, measure the C core and mark this as the third measurement;

[0073] At 0.6s, measure the A core and mark this as the 4th measurement;

[0074] …

[0075] For the j-th position core group using the i-th core twisting, when coating, the corresponding coating method is determined according to the diameters of the coated cores A, B, and C, where j=1,2,3,…,m, and m is the number of detection positions corresponding to the above control cable, such as:

[0076] The first core position corresponds to the first, second, and third measurements, where

[0077] The first measurement is for increasing coating, the second measurement is for increasing coating, and the third measurement is for decreasing coating, then the wire core group at the first position is determined to be set for increasing coating;

[0078] Another example:

[0079] The first measurement is for added coating, the second measurement is for conventional coating, and the third measurement is for reduced coating. The diameter of the wire core group is determined, wherein the qualified diameter of the wire core group is set as D0, and the actual diameter of the wire core group is set as Dj.

[0080] If Dj>D0, it is determined that reduced coating is used;

[0081] If Dj≤D0, it is determined that the coating method is to be increased.

[0082] It can be understood that Φα and Φβ are related to the core diameter of the control cable and the diameter of the control cable, and D0 is related to the working environment of the cable.

[0083] Embodiment 1:

[0084] Water-blocking glue and liquid insulating material are injected into the feed box respectively, and the feed box is continuously pressurized by the cylinder, the discharge port is placed above the single wire core, the first control valve and the second control valve are opened, and the water-blocking glue and liquid insulating material enter the coating machine through the first pipeline and the second pipeline, the bottom plate is kept horizontal, the water-blocking glue and liquid insulating material are spread flat on the bottom plate, the micrometer controls the height of the scraper, and the cross frame moves on the parallel guide rails to drive the scraper to make a circular motion to spread the water-blocking glue and liquid insulating material evenly. The collector collects the uniform water-blocking glue and liquid insulating material, closes the first control valve and the second control valve, opens the third control valve, and makes the water-blocking glue and liquid insulating material drip uniformly on the single wire core through the third pipeline respectively.

[0085] By coating a single wire core with liquid insulating material of a preset thickness, the potential safety hazard of a fire in the control cable is reduced, and the difficulty of rescue during firefighting is reduced.

[0086] By collecting the dripping liquid insulating material as the remaining liquid insulating material, the utilization rate of the liquid insulating material is improved, the waste of the material is avoided, and the cost is saved.

[0087] Specifically, in step S2, it also includes:

[0088] The wire core aggregate and the coated wire core are stacked in a preset state at a preset density and twisted to form a wire core group;

[0089] Among them, twisting is to pull the front end of the core aggregate into the cable, the twister twists the cable with the core aggregate as the axis, and detects the total diameter.

[0090] Specifically, in step S3, the core group is coated by dripping and coating the liquid insulating material and / or remaining liquid insulating material on the core group, and the core group is rotated at a preset speed. When the core group rotates one circle, the water-blocking glue is wrapped around the coated part of the core group to form a coated core group.

[0091] Specifically, the coating equipment in step S3 is the same as the coating equipment in step S1, and the coated wire core group utilizes the collected residual water-blocking glue and liquid insulating material, and performs secondary coating on the wire core group according to the thickness of the single wire core and the total wire diameter to form a coated wire core group.

[0092] Embodiment 2:

[0093] The standard diameter of the coated wire core group is 10mm, and the thickness of the material wrapping the coated wire core group is 1mm. If the thickness of a single wire core is 1mm and the total diameter is 3mm, the thickness of the secondary coating should be 1mm.

[0094] By coating the wire core group with water-blocking glue and liquid insulating material for the second time, the water-blocking insulating material can be made to fit the control cable more closely, thereby reducing the potential safety hazard of a fire in the control cable and reducing the difficulty of rescue during firefighting.

[0095] Specifically, in step S4, the coated wire core group is wrapped to a standard diameter, and the coated wire core group is divided according to a preset length, and the coated wire core group is closed at the divisions to form a plurality of division spaces.

[0096] Specifically, in step S4, when forming the control cable, the wrapped cable is also filled with phase change material particles.

[0097] See also Figure 2As shown, it is a schematic diagram of a production device for a heat-resistant cross-linked polyethylene control cable of the present invention, comprising:

[0098] Several cable coating groups, which are used to perform basic coating on single wire cores;

[0099] A twister, which is used to twist the cables into a core group of the control cable;

[0100] A secondary coating group, which is used to perform secondary coating on the wire core;

[0101] Among them, the basic coating is to coat a single wire core with water-blocking glue and liquid insulating material;

[0102] The wire core group includes a wire core and an insulating wire bundle.

[0103] By coating a single core to form a corresponding coated core, twisting the core aggregate and the coated core to form a core group, coating the core group to form a coated core group, wrapping the coated core group to form a control cable, the flow rate and flow of the material are controlled, the material can be output stably and evenly, the feeding is more time-saving and labor-saving, the safety hazard of fire in the control cable is reduced, and the rescue difficulty during fire fighting is reduced.

[0104] See also Figure 3 As shown, it is a connection schematic diagram of the coating group of an embodiment of the present invention. For a single coating group in a production device, it includes a cylinder and a feed box fixed on a first bracket, wherein the feed box has two cavities built therein, including a left cavity and a right cavity, and the cylinder is used to provide air pressure to the feed box;

[0105] The coating machine is fixed on the second bracket, and both ends of the coating machine are equipped with coating molds for coating the cable;

[0106] The left cavity of the feed box is connected to the coating machine through a first pipeline, a first control valve is arranged on the first pipeline, and the right cavity of the feed box is connected to the coating machine through a second pipeline, a second control valve is arranged on the second pipeline;

[0107] The coating machine is radially provided with a first feed hole correspondingly connected to the first pipeline outlet and a second feed hole correspondingly connected to the second pipeline outlet;

[0108] The coating machine is connected with a third pipeline, a discharge port is arranged at the end of the third pipeline, and a third control valve is arranged on the third pipeline;

[0109] The cylinder can provide a stable pressure to each feed box at a preset rate.

[0110] Embodiment 3:

[0111] The cylinder provides a fixed pressure of 1000Pa for each feed box. The material flow rate is measured to be 10m / s. The fixed pressure of the cylinder is changed to 2000Pa, and the material flow rate is measured to be 15m / s for the second time. The fixed pressure of the cylinder is changed to 500Pa, and the material flow rate is measured to be 8m / s for the third time. It can be seen that the material flow rate is positively correlated with the cylinder pressure.

[0112] By setting up a coating group, the water-blocking glue and liquid insulating material with a lower melting point are evenly coated on the conductor surface, and the flow rate and flow of the material are controlled, so that the material can be output stably and evenly, making the feeding more time-saving and labor-saving.

[0113] Specifically, the coating machine includes a bottom plate, parallel guide rails arranged on both sides of the bottom plate, a horizontal frame installed on the parallel guide rails, a height controller arranged close to the horizontal frame, and,

[0114] A collector connected to the bottom plate for collecting the uniformly treated water-blocking glue and liquid insulating material;

[0115] Wherein, a scraper is arranged at one end of the horizontal frame close to the bottom plate.

[0116] By providing a collector, overflow of materials in the coating group is prevented, thereby further improving the utilization rate of the materials.

[0117] For this solution, the above-mentioned "diameters" are the diameters of circles of equal area corresponding to the cross-sectional areas of cables, cores, and conductors. This description is only related to their actual areas and has nothing to do with specific contours and shapes.

[0118] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for producing a heat-resistant cross-linked polyethylene control cable, characterized in that: include: Step S1, detecting the thickness of a single wire core, and coating the wire core to form a corresponding coated wire core; Step S2, adding wire core aggregate, and twisting the wire core aggregate with the coated wire core to form a wire core group, and detecting the total diameter; Step S3, coating the wire core group to form a coated wire core group, and performing secondary coating on the wire core group according to the thickness of a single wire core and the total diameter; Step S4, wrapping the coated wire core group to a standard diameter to form a control cable; Wherein, the wire core aggregate comprises a plastic wire core made of phase change material; The coating is performed by layering the water-blocking adhesive and the liquid insulating material; In the step S1, the diameter of the single wire core is detected, and the liquid insulating material coated with a preset thickness is coated on the single wire core, and the dripping liquid insulating material is collected as the remaining liquid insulating material. When the liquid insulating material is coated to a preset coating thickness, the water-blocking glue is wound onto the single wire core to form the coated wire core; For a single control cable, the coated core is measured several times. For the i-th measurement, the diameter of the coated core is Φi, where i=1,2,3,…,n, and n is the maximum number of measurements. Usually, the number is positively correlated with the length of the cable. The central control module is provided with a minimum core diameter Φα and a core diameter threshold Φβ, where 0<Φα<Φβ. The minimum core diameter Φα is the minimum value of a single core that meets production requirements, and the core diameter threshold Φβ is the maximum value of a single core diameter of the control cable. By comparing Φi with Φα and Φβ, the secondary coating method of the core group can be determined. If Φi≤Φα, it is determined that the secondary coating of the wire core group at the corresponding position of the i-th measurement is the added coating; If Φα<Φi≤Φβ, the secondary coating of the wire core group at the corresponding position of the i-th measurement is determined to be conventional coating; If Φβ<Φi, the secondary coating of the wire core group at the corresponding position of the i-th measurement is determined to be reduced coating; The above measurement is performed on each core of the single control cable arranged continuously; For the j-th position core group using the i-th core twisting, when coating, the corresponding coating method is determined according to the diameters of the coated cores A, B, and C, where j=1, 2, 3, ..., m, and m is the number of detection positions corresponding to the above control cable; The first measurement is for added coating, the second measurement is for conventional coating, and the third measurement is for reduced coating. The diameter of the wire core group is determined, wherein the qualified diameter of the wire core group is set as D0, and the actual diameter of the wire core group is set as Dj. If Dj>D0, it is determined that reduced coating is used; If Dj≤D0, it is determined that the coating should be applied with additional amount; For Φα and Φβ, they are related to the core diameter of the control cable and the diameter of the control cable, and D0 is related to the working environment of the cable; In the step S3, coating the wire core group is to drip and coat the liquid insulating material and / or the remaining liquid insulating material on the wire core group, and rotate the wire core group at a preset speed, and when the wire core group rotates one circle, the water-blocking glue is wound around the coated part of the wire core group to form the coated wire core group; The production device of heat-resistant cross-linked polyethylene control cable includes: Several cable coating groups, which are used to perform basic coating on single wire cores; A twister, which is used to twist the cables into a core group of the control cable; A secondary coating group, used for performing secondary coating on the wire core; Wherein, the basic coating is to coat a single wire core with water-blocking glue and liquid insulating material; A single coating group in a production device comprises a cylinder and a feed box fixed on a first bracket, wherein the feed box has two cavities built therein, including a left cavity and a right cavity, and the cylinder is used to provide air pressure to the feed box; The coating machine is fixed on the second bracket, and both ends of the coating machine are equipped with coating molds for coating the cable; The left cavity of the feed box is connected to the coating machine through a first pipeline, a first control valve is provided on the first pipeline, and the right cavity of the feed box is connected to the coating machine through a second pipeline, a second control valve is provided on the second pipeline; The coating machine is radially provided with a first feed hole correspondingly connected to the first pipeline outlet and a second feed hole correspondingly connected to the second pipeline outlet; The coating machine is connected with a third pipeline, the end of the third pipeline is provided with a discharge port, and the third pipeline is provided with a third control valve; The cylinder can provide a stable pressure to each feed box at a preset rate; The coating machine comprises a bottom plate, parallel guide rails arranged on both sides of the bottom plate, a cross frame installed on the parallel guide rails, a height controller arranged close to the cross frame, and, A collector connected to the bottom plate and used to collect the uniform water-blocking glue and liquid insulating material after treatment; Wherein, a scraper is provided at one end of the horizontal frame close to the bottom plate.

2. The method for producing a heat-resistant cross-linked polyethylene control cable according to claim 1, characterized in that: In the step S3, the coating material used to coat the core group is the remaining liquid insulating material.

3. The method for producing a heat-resistant cross-linked polyethylene control cable according to claim 2, characterized in that: In the step S2, it also includes: The wire core aggregate and the coated wire core are stacked in a preset state at a preset density and twisted to form a wire core group; The twisting is to pull the front end of the wire core aggregate into the cable, and the twister twists the cable with the wire core aggregate as the axis, and detects the total diameter.

4. The method for producing a heat-resistant cross-linked polyethylene control cable according to claim 3, characterized in that: The coating equipment in step S3 is the same as the coating equipment in step S1, and the coated wire core group utilizes the collected residual water-blocking glue and liquid insulating material, and performs secondary coating on the wire core group according to the single wire core thickness and the total wire diameter to form the coated wire core group.

5. The method for producing a heat-resistant cross-linked polyethylene control cable according to claim 4, characterized in that: In the step S4, the coated wire core group is wrapped to a standard diameter, and the coated wire core group is divided according to a preset length, and the coated wire core group is closed at the divisions to form a plurality of division spaces.

6. The method for producing a heat-resistant cross-linked polyethylene control cable according to claim 5, characterized in that: In the step S4, when forming the control cable, the phase change material particles are also filled into the wrapped cable.

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