A cable core coating device for power cable processing and control method thereof

Abstract

The present invention relates to the technical field of power cable processing, and in particular to a cable core coating device for power cable processing and a control method thereof, comprising a base, wherein the interior of the processing table is provided with an inner cavity for the cable to pass through, and further comprising: a coating cavity, which is opened inside the processing table, and the cable core is coated after passing through the coating cavity; a melting component, which is installed on the top of the processing table and is used to melt the plastic after loading, so as to pressurize the melted plastic and inject it into the coating cavity to coat the cable core; a scraping component, which is installed inside the coating cavity and is used to re-stir the melted plastic that enters the coating cavity and contacts the inner wall; this device melts a small amount of raw materials in a cycle through the setting of the melting component to avoid cooling of the raw materials after melting, and avoids original interruption through uninterrupted material replenishment, thereby facilitating improving the coating efficiency of the cable core.

Description

Technical Field

[0001] The present invention relates to the field of power cable processing, and in particular to a cable core covering device for power cable processing and a control method thereof. Background Art

[0002] Wires and cables are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion. Wires and cables in a broad sense are also referred to as cables. Cables in a narrow sense refer to insulated cables, which can be defined as one or more insulated cores, and their respective coatings, total protective layers and outer sheaths. Cables may also have additional uninsulated conductors.

[0003] The prior art discloses invention patents for some cable core coating aspects. The Chinese patent with application number CN202311089299.8 discloses a cable core coating molding device for cable processing. The present invention relates to the field of cable processing technology, including a base frame, a connecting plate is fixedly connected to the surface of the base frame, and a placement plate is fixedly connected to the surface of the connecting plate. A side connecting frame is fixedly connected to the surface of the placement plate. Two side connecting frames are provided, and the side connecting frames are symmetrical with the base frame as the center. A storage cavity is fixedly connected between the opposite surfaces of the side connecting frames, and a connecting plate is fixedly connected to the surface of the placement plate.

[0004] During the cable core coating process, the plastic is usually melted and then coated inside the coating cavity. As the cable core moves, the melted plastic is coated on the outside of the cable core and then solidified to form a coating layer. However, after the plastic is melted, if only a small amount of raw material is melted, it will cause frequent pauses in feeding, thereby affecting the coating efficiency. If a large amount of raw material is melted, the melted raw material will solidify while waiting for coating, which will affect the coating quality of the cable core. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a cable core covering device for power cable processing and a control method thereof.

[0006] In a first aspect, the present invention provides a cable core coating device for power cable processing, comprising a base, a processing table is fixed on the top of the base, an inner cavity for the cable to pass through is provided inside the processing table, and further comprising:

[0007] A coating cavity is provided inside the processing table, and the cable core is coated after passing through the coating cavity;

[0008] A melting material assembly is installed on the top of the processing table and is used to melt the plastic after loading, so as to pressurize and inject the melted plastic into the coating cavity to coat the cable core;

[0009] A scraping assembly is installed inside the coating cavity and is used to re-stir the melted plastic that enters the coating cavity and contacts the inner wall, so as to prevent the melted plastic from adhering to the side wall of the coating cavity and causing solidification;

[0010] The cable core passes through the inner cavity inside the processing table, and the staff places the plastic raw material inside the melting component. After the melting component melts the plastic raw material, the plastic raw material is transported to the inside of the coating cavity, so that the cable core is coated when the cable core passes through the coating cavity. A scraping component is arranged inside the coating cavity, so that the melted plastic raw material can scrape the edge of the coating cavity when it is stored inside the coating cavity, which is conducive to preventing the melted plastic raw material from being cooled and solidified after contacting the inner wall of the coating cavity, thereby preventing the cold and solidified plastic raw material from affecting the coating quality when coating the cable core;

[0011] When the remaining raw material inside the coating cavity is insufficient, the melting component melts the plastic raw material. The melting component completes the melting of the plastic raw material before the raw material is exhausted, and at the same time, the melted plastic raw material is transported to the inside of the coating cavity, thereby helping to avoid the inefficiency caused by waiting for refilling when the raw material is exhausted;

[0012] Therefore, a small amount of raw materials is melted in a cycle to avoid cooling of the raw materials after melting, and interruption of the raw materials is avoided by continuous feeding, which is beneficial to improving the coating efficiency of the cable core.

[0013] Preferably, the melt assembly comprises:

[0014] A feed hopper is fixed on the top of the processing table, and a first electromagnetic switch is installed inside the bottom discharge port of the feed hopper;

[0015] A melting chamber, fixed on the top of the processing table;

[0016] A stirring member is installed inside the melting chamber, and the stirring member switches states by bidirectional rotation. When the stirring member rotates clockwise, the stirring member switches to a stirring state to melt and stir the plastic inside the melting chamber, and when the stirring member rotates counterclockwise, the stirring member switches to a pressurizing state to continuously pressurize the melted plastic inside the melting chamber and input it into the coating chamber through rotation;

[0017] A second motor is fixed to the top of the melting chamber and is used to drive the stirring member to rotate;

[0018] A partition is fixed to the bottom of the melting chamber and is used to seal the coating chamber. A feed opening for the melted plastic to pass through is provided between the partition and the melting chamber. A second electromagnetic switch is installed inside the feed opening.

[0019] The staff places the plastic raw material inside the feed hopper. When the raw material needs to be melted, the first electromagnetic switch is turned on, and the raw material enters the melting chamber from the bottom discharge port of the feed hopper. The melting chamber is a melting chamber with a heating wire inside. After the plastic raw material enters the melting chamber, it is heated and gradually melted. At the same time, the second motor is started. After the second motor is started, the output shaft drives the stirring element to rotate clockwise. The stirring element stirs the plastic raw material entering the melting chamber, so that the plastic raw material is melted faster through stirring, and it is beneficial to uniform heating of the plastic raw material. After the plastic raw material is melted, the second electromagnetic switch is started, and the second motor is started in reverse at the same time. The second motor drives the stirring element to rotate counterclockwise through the output shaft. The counterclockwise rotating stirring element is switched to a pressurized state, so that the melted plastic raw material is conveyed to the inside of the coating chamber through the discharge port under the pressurized state, thereby realizing the melting and feeding of the plastic raw material.

[0020] Preferably, the stirring member comprises:

[0021] Agitating blades, wherein four agitating blades are grouped together and a plurality of groups are provided;

[0022] Rotating connecting members, wherein four rotating connecting members form a group and multiple groups are provided, wherein the rotating connecting members are fixedly connected with the stirring blades in a one-to-one correspondence, and all the rotating connecting members are rotatably connected in sequence along the vertical direction;

[0023] The topmost rotating connecting member is connected to the output shaft of the second motor, and the tops of the other rotating connecting members are all provided with circular grooves;

[0024] The bottom of the lowest rotating connection piece is rotatably connected to the bottom of the melting chamber, and the bottoms of the remaining rotating connections are all fixed with rotating pins, which are fan-shaped and have an inner angle of 30 degrees;

[0025] A first limit block, corresponding to the circular groove one by one, fixed inside the circular groove, when all the rotating pins are against the corresponding first limit block, all the stirring blades are in the shape of spiral blades;

[0026] A third limit block is provided corresponding to the topmost rotating connection member of each group behind the rotating connection member except the topmost rotating connection member, and is fixed inside the corresponding rotating connection member, and the third limit block forms an angle of 165 degrees with the first limit block;

[0027] A second limit block is provided corresponding to each group of the three lower rotating connectors and is fixed inside the corresponding rotating connector. The second limit block forms an angle of 75 degrees with the first limit block. When all the rotating pins are against the corresponding third limit block and the second limit block, all the stirring blades are distributed in four groups of arrays.

[0028] As an optional embodiment, the stirring blades in the same group are, from top to bottom, a first stirring plate, a second stirring plate, a third stirring plate and a fourth stirring plate;

[0029] As an optional embodiment, the rotating connecting members in the same group are, from top to bottom, a first rotating ring, a second rotating ring, a third rotating ring and a fourth rotating ring;

[0030] When the second motor drives the first rotating ring to rotate clockwise, the first rotating ring drives the rotating pin to rotate clockwise, and after the rotating pin rotates clockwise, it abuts against the second limit block to drive the second rotating ring to rotate, and the second rotating ring also drives the third rotating ring and the fourth rotating ring to rotate. Since the second limit block inside the second rotating ring, the third rotating ring and the fourth rotating ring form an angle of 75 degrees with the first limit block, and the rotating pin is fan-shaped with an inner angle of 30 degrees, the first rotating ring drives the second rotating ring to rotate after rotating 45 degrees, the second rotating ring drives the third rotating ring to rotate after rotating 45 degrees, and the third rotating ring drives the fourth rotating ring to rotate after rotating 45 degrees, so that the first rotating ring, the second rotating ring, the third rotating ring and the fourth rotating ring are rotated at the same time. After clockwise rotation, they are aligned in the vertical direction, and the fourth rotating ring drives the rotating pin at the bottom to rotate. At this time, the third limit block inside the next first rotating ring forms an angle of 165 degrees with the first limit block, so that the fourth rotating ring pushes the next first rotating ring to rotate after rotating 135 degrees. After the rotation, the fourth rotating ring forms an angle of 90 degrees with the next first rotating ring. Similarly, the first rotating ring drives the subsequent second rotating ring, the third rotating ring and the fourth rotating ring to rotate to vertical alignment, and reciprocates in sequence. If there are four groups of stirring blades, the adjacent groups of the four groups of stirring blades are at an angle of 90 degrees after the rotation is completed, thereby realizing the switching of the stirring state of the stirring blades. At this time, after the stirring blades rotate, they can stir the plastic raw materials inside the melting chamber;

[0031] When the second motor drives the first rotating ring to rotate counterclockwise, the first rotating ring drives the rotating pin to rotate counterclockwise, and the rotating pin rotates counterclockwise until it abuts against the first limit block, thereby driving the second rotating ring to rotate counterclockwise. Similarly, the second rotating ring drives the third rotating ring to rotate counterclockwise, and then drives the first rotating ring, the second rotating ring, the third rotating ring, and the fourth rotating ring to rotate counterclockwise downward in sequence, so that the stirring blade is as follows after the rotation is completed. Fig.11 The spiral state shown in the figure realizes the switching of the pressurized state of the stirring blade. At this time, after the stirring blade rotates, the molten plastic is driven in a spiral shape along the feed port into the interior of the coating cavity, which is beneficial to transport all the molten plastic raw materials to the interior of the coating cavity for coating the cable core.

[0032] In a second aspect, a control method for a cable core coating device for power cable processing is provided, wherein a controller is installed on the side wall of the base, and a first pressure sensor is installed at the bottom of the screw, and the control method comprises the following steps:

[0033] The controller receives first pressure information generated by the first pressure sensor when under pressure;

[0034] The controller generates material replenishment control information according to the first pressure information, and the material replenishment control information is used to control the melting component to start melting and replenishing the material;

[0035] The controller sends the material replenishment control information to the material melting component to control the material melting component to start melting and replenishing the material;

[0036] The first pressure sensor generates first pressure information when under pressure, and sends the first pressure information to the controller. The controller receives the first pressure information and generates material replenishment control information according to the first pressure information after receiving the first pressure information. Subsequently, the controller sends the material replenishment control information to the melting component to control the start of the melting component. After the melting component is started, the material replenishment is melted.

[0037] Preferably, a second pressure sensor is installed at the bottom of the annular frame, and further comprises:

[0038] The controller receives second pressure information generated by the second pressure sensor when under pressure;

[0039] The controller generates pushing control information according to the second pressure information, and the pushing control information is used to control the second motor to drive the stirring element to rotate counterclockwise;

[0040] The controller sends the pushing control information to the second motor to control the second motor to drive the stirring element to rotate counterclockwise;

[0041] After the second pressure sensor is pressurized, it generates second pressure information, and then the second pressure sensor sends the second pressure information to the controller. The controller receives the second pressure information and generates push control information based on the received second pressure information. Then the controller sends the push control information to the second motor to control the start of the second motor. After the second motor starts, it drives the stirring element to rotate counterclockwise.

[0042] Preferably, it also includes:

[0043] The controller generates reset control information and yield control information while generating the push control information, wherein the reset control information is used to control the drive assembly to reversely drive the pressure plate to reset, and the yield control information is used to control the first electromagnet to be powered on and started;

[0044] The controller sends the reset control information to the driving component to control the driving component to reversely drive the pressure plate to reset;

[0045] The controller sends the yield control information to the first electromagnet to control the first electromagnet to be powered on and started;

[0046] The controller generates reset control information and yield control information based on the received first pressure information, and then sends the reset control information to the drive component to control the reverse start of the drive component. After the reverse start of the drive component, the pressure plate is reset, and the controller sends the yield control information to the first electromagnet to control the first electromagnet to be powered on and started.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] 1. The present invention, through the setting of the melting material component, melts a small amount of raw materials in a cycle to avoid the cooling of the raw materials after melting, and avoids interruption of the raw materials through uninterrupted material replenishment, which is beneficial to improve the coating efficiency of the cable core.

[0049] 2. The present invention realizes switching of the stirring state of the stirring blade in the clockwise state through the setting of the stirring element. At this time, after the stirring blade rotates, it can stir the plastic raw material inside the melting chamber. In the counterclockwise state, the stirring blade is switched to the pressurized state. At this time, after the stirring blade rotates, the molten plastic is driven spirally along the discharge port into the coating chamber, which is beneficial to transport all the molten plastic raw materials to the inside of the coating chamber for coating the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0051] Figure 2 It is a schematic diagram of the overall structure of the device of the present invention.

[0052] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention.

[0053] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0054] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0055] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0056] Figure 7 It is a schematic structural diagram of the processing table after sectioning of the present invention.

[0057] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0058] Fig. 9 It is a schematic diagram of the installation structure of the pressure plate of the present invention.

[0059] Fig.10 It is a schematic structural diagram of the pressure plate of the present invention after cross section.

[0060] Fig.11 The structure diagram of the stirring member in the present invention in the pressurized state is shown in FIG. Figure 1 .

[0061] Fig.12 The schematic diagram of the structure of the stirring member in the pressurized state of the present invention is shown in FIG. Figure 2 .

[0062] Fig.13 It is a schematic diagram of the stirring state structure of the stirring member of the present invention.

[0063] In the figure: 1, base; 2, processing table; 201, inner cavity; 3, coating cavity; 4, feeding hopper; 401, first electromagnetic switch; 5, melting cavity; 501, feeding port; 502, second electromagnetic switch; 6, partition; 7, screw; 8, ring frame; 9, heat-conducting metal rod; 10, scraper; 11, heating wire; 12, first motor; 13, first gear; 14, second gear; 15, pressure plate; 16, through groove; 17, sealing plate; 18, first electromagnet; 19, second electromagnet; 20, second motor; 21, stirring blade; 2101, first stirring plate; 2102 , second stirring plate; 2103, third stirring plate; 2104, fourth stirring plate; 22, rotating connecting piece; 2201, first rotating ring; 2202, second rotating ring; 2203, third rotating ring; 2204, fourth rotating ring; 23, rotating pin; 24, first limit block; 2501, second limit block; 2502, third limit block; 26, positioning cylinder; 27, oily paper; 28, winding roller; 29, unwinding roller; 30, third motor; 3001, cover plate; 31, annular plate; 32, scraper; 33, waste port; 34, anti-seepage pipe; 35, limit roller. DETAILED DESCRIPTION

[0064] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0065] like Figures 2 to 13 The cable core coating device for power cable processing shown in the figure comprises a base 1, a processing table 2 is fixed on the top of the base 1, and an inner cavity 201 for the cable to pass through is provided inside the processing table 2, and further comprises:

[0066] The coating cavity 3 is opened inside the processing table 2, and the cable core is coated after passing through the coating cavity 3;

[0067] The melting material assembly is installed on the top of the processing table 2, and is used to melt the plastic after loading, so as to pressurize and inject the melted plastic into the coating cavity 3 to coat the cable core;

[0068] A scraping assembly is installed inside the coating cavity 3 and is used to re-stir the melted plastic that enters the coating cavity 3 and contacts the inner wall, so as to prevent the melted plastic from adhering to the side wall of the coating cavity 3 and causing solidification;

[0069] During the coating process of the cable core, the plastic is usually melted and then coated inside the coating cavity. As the cable core moves, the melted plastic is coated on the outside of the cable core and solidifies to form a coating layer. However, after the plastic is melted, if only a small amount of raw materials are melted, it will cause frequent pauses in feeding, thereby affecting the coating efficiency. If a large amount of raw materials are melted, the melted raw materials will solidify while waiting for coating, which will affect the coating quality of the cable core.

[0070] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: the cable core passes through the inner cavity 201 inside the processing table 2, and the staff places the plastic raw material inside the melting component. After the melting component melts the plastic raw material, the plastic raw material is transported to the inside of the coating cavity 3, so that the cable core is coated when the cable core passes through the coating cavity 3. A scraping component is provided inside the coating cavity 3, so that the melted plastic raw material can scrape the edge of the coating cavity 3 when it is stored inside the coating cavity 3, so as to prevent the melted plastic raw material from being cooled and solidified after contacting the inner wall of the coating cavity 3, so as to prevent the cold and solidified plastic raw material from affecting the coating quality when coating the cable core;

[0071] When the raw material inside the coating cavity 3 is insufficient, the melting component melts the plastic raw material. The melting component completes the melting of the plastic raw material before the raw material is exhausted, and at the same time, the melted plastic raw material is transported to the inside of the coating cavity 3, thereby helping to avoid the inefficiency caused by waiting for refilling when the raw material is exhausted;

[0072] Therefore, a small amount of raw materials is melted in a cycle to avoid cooling of the raw materials after melting, and interruption of the raw materials is avoided by continuous feeding, which is beneficial to improving the coating efficiency of the cable core.

[0073] As an optional embodiment, the middle part of the inner cavity 201 includes:

[0074] Two groups of limiting rollers 35, two limiting rollers 35 form a group, the limiting rollers 35 in the same group are vertically aligned, the limiting rollers 35 are rotatably installed in the installation grooves opened in the inner cavity 201, and the cable core is supported by the two groups of limiting rollers 35 when passing through the inner cavity 201;

[0075] The support of the cable core by the limiting roller 35 helps to keep the cable core in a horizontal state at all times, thereby helping to avoid the situation where the cable core position is shifted due to the change in the pulling direction of the cable core, thereby helping to maintain the uniformity of the cable core coating.

[0076] As an optional embodiment, an anti-seepage tube 34 is fixed inside the coating cavity 3, and the anti-seepage tube 34 is located at the entrance of the cable core into the coating cavity 3, and one end of the anti-seepage tube 34 facing away from the entrance is inclined and guided;

[0077] Through the provision of the anti-seepage tube 34, on the one hand, the entry channel of the cable core is blocked to prevent the molten plastic from entering the inner cavity 201; on the other hand, through the inclined guide surface of the inner cavity 201, when the molten plastic is pressed to flow into the inner cavity 201, the seepage can be reduced due to the obstruction of the inclined guide surface, and a small amount of seepage can be brought back to the interior of the sheathing cavity 3 when the cable core moves, thereby helping to reduce the seepage of the molten plastic.

[0078] As an optional embodiment, the melt component includes:

[0079] The feed hopper 4 is fixed on the top of the processing table 2, and a first electromagnetic switch 401 is installed inside the bottom discharge port of the feed hopper 4;

[0080] The melting chamber 5 is fixed on the top of the processing table 2;

[0081] A stirring member is installed inside the melting chamber 5. The stirring member switches its state by bidirectional rotation. When the stirring member rotates clockwise, it switches to a stirring state to melt and stir the plastic inside the melting chamber 5. When the stirring member rotates counterclockwise, it switches to a pressurizing state to continuously pressurize the melted plastic inside the melting chamber 5 and input it into the coating chamber 3.

[0082] The second motor 20 is fixed to the top of the melting chamber 5 and is used to drive the stirring element to rotate;

[0083] The partition 6 is fixed to the bottom of the melting chamber 5 and is used to seal the coating chamber 3. A feed opening 501 for the molten plastic to pass through is provided between the partition 6 and the melting chamber 5. A second electromagnetic switch 502 is installed inside the feed opening 501.

[0084] The staff places the plastic raw material inside the feed hopper 4. When the raw material needs to be melted, the first electromagnetic switch 401 is turned on, and the raw material enters the melting chamber 5 from the bottom discharge port of the feed hopper 4. The melting chamber 5 is a melting chamber with a heating wire inside. After entering the melting chamber 5, the plastic raw material is heated and gradually melted. At the same time, the second motor 20 is started. After the second motor 20 is started, the output shaft drives the stirring element to rotate clockwise. The stirring element stirs the plastic raw material entering the melting chamber 5, so that the plastic raw material is melted faster through stirring, and it is beneficial to uniform heating of the plastic raw material. After the plastic raw material is melted, the second electromagnetic switch 502 is started, and the second motor 20 is started in reverse at the same time. The second motor 20 drives the stirring element to rotate counterclockwise through the output shaft. The counterclockwise rotating stirring element is switched to a pressurized state, so that the melted plastic raw material is conveyed to the inside of the coating chamber 3 through the discharge port 501 under the pressurized state, thereby realizing the melting and feeding of the plastic raw material.

[0085] As an optional embodiment, the stirring member includes:

[0086] A stirring blade 21, wherein four stirring blades 21 are grouped together and a plurality of groups are provided;

[0087] Rotating connecting members 22, four rotating connecting members 22 form a group and multiple groups are provided, the rotating connecting members 22 are fixedly connected with the stirring blades 21 in a one-to-one correspondence, and all the rotating connecting members 22 are rotated and connected in sequence along the vertical direction;

[0088] The topmost rotating connecting member 22 is connected to the output shaft of the second motor 20, and the tops of the remaining rotating connecting members 22 are all provided with circular grooves;

[0089] The bottom of the lowest rotating connecting member 22 is rotatably connected to the bottom of the melting chamber 5, and the bottoms of the remaining rotating connecting members 22 are all fixed with rotating pins 23, which are fan-shaped and have an inner angle of 30 degrees;

[0090] The first limit blocks 24 correspond to the circular grooves one by one and are fixed inside the circular grooves. When all the rotating pins 23 abut against the corresponding first limit blocks 24, all the stirring blades 21 are in the shape of spiral blades.

[0091] The third limit block 2502 is provided corresponding to the topmost rotating connection member 22 of each group except the topmost rotating connection member 22, and is fixed inside the corresponding rotating connection member 22. The third limit block 2502 forms an angle of 165 degrees with the first limit block 24;

[0092] The second limit block 2501 is provided corresponding to each group of three rotating connecting members 22 below, and is fixed inside the corresponding rotating connecting member 22. The second limit block 2501 and the first limit block 24 form an angle of 75 degrees. When all the rotating pins 23 are against the corresponding third limit block 2502 and the second limit block 2501, all the stirring blades 21 are distributed in four groups of arrays;

[0093] As an optional embodiment, the stirring blades 21 in the same group are, from top to bottom, a first stirring plate 2101, a second stirring plate 2102, a third stirring plate 2103 and a fourth stirring plate 2104;

[0094] As an optional embodiment, the rotating connecting members 22 in the same group are, from top to bottom, a first rotating ring 2201, a second rotating ring 2202, a third rotating ring 2203 and a fourth rotating ring 2204;

[0095] When the second motor 20 drives the first rotating ring 2201 to rotate clockwise, the first rotating ring 2201 drives the rotating pin 23 to rotate clockwise. After the rotating pin 23 rotates clockwise, it abuts against the second limit block 2501 to drive the second rotating ring 2202 to rotate. The second rotating ring 2202 also drives the third rotating ring 2203 and the fourth rotating ring 2204 to rotate. Since the second limit block 2501 inside the second rotating ring 2202, the third rotating ring 2203 and the fourth rotating ring 2204 form an angle of 75 degrees with the first limit block 24, and the rotating pin 23 is fan-shaped with an inner angle of 30 degrees, the first rotating ring 2201 rotates 45 degrees and then drives the second rotating ring 2202 to rotate. The second rotating ring 2202 rotates 45 degrees and then drives the third rotating ring 2203 to rotate. The third rotating ring 2203 rotates 45 degrees and then drives the fourth rotating ring 2204 to rotate. After the third rotating ring 2203 and the fourth rotating ring 2204 rotate clockwise, they are aligned in the vertical direction, and the fourth rotating ring 2204 drives the rotating pin 23 at the bottom to rotate. At this time, the third limit block 2502 inside the next first rotating ring 2201 forms an angle of 165 degrees with the first limit block 24, so that the fourth rotating ring 2204 pushes the next first rotating ring 2201 to rotate after rotating 135 degrees. After the rotation, the fourth rotating ring 2204 forms an angle of 90 degrees with the next first rotating ring 2201. Similarly, the first rotating ring 2201 drives the subsequent second rotating ring 2202, the third rotating ring 2203 and the fourth rotating ring 2204 to rotate to vertical alignment, and reciprocates in sequence. If the stirring blade 21 is provided with four groups, the adjacent groups of the four groups of stirring blades 21 form an angle of 90 degrees after the rotation is completed, thereby realizing the switching of the stirring state of the stirring blade 21. At this time, after the stirring blade 21 rotates, it can stir the plastic raw material inside the melting chamber 5;

[0096] When the second motor 20 drives the first rotating ring 2201 to rotate counterclockwise, the first rotating ring 2201 drives the rotating pin 23 to rotate counterclockwise, and the rotating pin 23 rotates counterclockwise until it abuts against the first limit block 24, thereby driving the second rotating ring 2202 to rotate counterclockwise. Similarly, the second rotating ring 2202 drives the third rotating ring 2203 to rotate counterclockwise, and sequentially downward, driving the first rotating ring 2201, the second rotating ring 2202, the third rotating ring 2203 and the fourth rotating ring 2204 to rotate counterclockwise, so that the stirring blade 21 is as follows after the rotation is completed. Fig.11 The spiral state shown in the figure realizes the switching of the pressurized state of the stirring blade 21. At this time, after the stirring blade 21 rotates, the molten plastic is driven in a spiral shape along the discharge port 501 into the interior of the coating cavity 3, which is beneficial to transport all the molten plastic raw materials to the interior of the coating cavity 3 for coating the cable core.

[0097] As an optional embodiment, the scraping assembly includes:

[0098] The annular frame 8 is rotatably mounted inside the installation space opened at the edge of the partition 6;

[0099] A plurality of heat-conducting metal rods 9 are fixed to the bottom of the annular frame 8 in a circumferential array, and scrapers 10 are fixed to the side walls of the heat-conducting metal rods 9, and the scrapers 10 scrape and contact with the inner wall of the coating cavity 3;

[0100] A driving assembly, mounted on the top of the processing table 2, for driving the annular frame 8 to rotate;

[0101] The driving assembly drives the annular frame 8 to rotate, the annular frame 8 drives the heat-conducting metal rod 9 to rotate, and the heat-conducting metal rod 9 drives the scraper 10 to rotate. After the scraper 10 rotates, the molten plastic in contact with the inner wall of the coating cavity 3 is scraped toward the middle of the coating cavity 3, thereby helping to avoid the molten plastic from solidifying after being in contact with the inner wall of the coating cavity 3 for a long time.

[0102] As an optional embodiment, the driving component includes:

[0103] The first motor 12 is fixed inside a mounting groove provided inside the processing table 2;

[0104] The first gear 13 is rotatably mounted on the top of the processing table 2, and the first motor 12 drives the first gear 13 to rotate through the output shaft;

[0105] The second gear 14 is fixed to the top of the annular frame 8, and the first gear 13 is meshed with the second gear 14;

[0106] After the first motor 12 is started, it drives the first gear 13 to rotate through the output shaft. After the first gear 13 rotates, it drives the second gear 14 meshing therewith to rotate. The second gear 14 drives the annular frame 8 to rotate, thereby driving the heat-conducting metal rod 9 to rotate.

[0107] As an optional embodiment, it also includes:

[0108] The heating wire 11 is arranged corresponding to the heat-conducting metal rod 9 and inserted into the cylindrical groove opened inside the corresponding heat-conducting metal rod 9;

[0109] A rotating electrical connector, mounted on the top of the annular frame 8, for maintaining electrical connection to the heating wire 11 while the annular frame 8 rotates;

[0110] After the heating wire 11 is energized, it can heat up the heat-conducting metal rod 9 , so that the heat-conducting metal rod 9 heats up the plastic raw material during the stirring process, which helps to avoid the solidification of the melted plastic raw material.

[0111] As an optional embodiment, it also includes:

[0112] The screw 7 is fixed to the bottom of the partition 6;

[0113] The pressure plate 15 is spirally sleeved on the outside of the screw rod 7, and the outer ring of the pressure plate 15 is slidably connected with the heat-conducting metal rod 9 through a clearance groove;

[0114] A plurality of through slots 16 are provided in a circular array and are opened through the top of the pressure plate 15;

[0115] The sealing plate 17 is arranged corresponding to the through groove 16 and is slidably installed inside a mounting groove opened on a side wall of the through groove 16;

[0116] The second electromagnet 19 is arranged corresponding to the through slot 16 and is fixedly embedded on the other side wall of the through slot 16;

[0117] The first electromagnet 18 is arranged corresponding to the through slot 16 and fixed inside the mounting slot;

[0118] A pressure valve is installed through the bottom of the partition 6 to maintain the air pressure inside the covering cavity 3;

[0119] The pressure plate 15 rotates with the rotation of the heat-conducting metal rod 9. After the pressure plate 15 rotates, it moves vertically through the spiral action with the screw 7. When the pressure plate 15 moves downward, the second electromagnet 19 is energized and started, so that the second electromagnet 19 generates a magnetic attraction on the sealing plate 17. The sealing plate 17 is made of magnetic metal material, so that the sealing plate 17 moves to the inside of the through groove 16 for sealing. At this time, the pressure plate 15 moves downward to apply thrust to the melted plastic raw material. When the pressure plate 15 moves downward, the pressure valve can balance the air pressure above the pressure plate 15, thereby driving the melted plastic to flow downward and coat the outside of the cable core, and as the cable core is extruded, it is beneficial to maintain the output efficiency of the plastic raw material, so as to make the plastic uniformly coated on the outside of the cable core. When the raw material inside the coating cavity 3 is about to be exhausted, the raw material is melted inside the melting cavity 5. After the plastic raw material is melted, the raw material is pushed into the coating cavity 3 by the stirring blade 21. At this time, the heat-conducting metal rod 9 The reverse rotation drives the pressure plate 15 to rotate in the reverse direction and then move upward to reset. At this time, the first electromagnet 18 is energized and started, so that the first electromagnet 18 generates a magnetic attraction on the sealing plate 17, so that the sealing plate 17 moves to the inside of the mounting groove on the side wall of the through groove 16, thereby exposing the through groove 16, so that the melted plastic raw material enters the coating cavity 3 through the through groove 16. When the plastic raw material is pressurized into the coating cavity 3, due to the presence of gas inside the coating cavity 3, the air pressure inside the coating cavity 3 gradually rises with the entry of the plastic raw material. At this time, the pressure valve is connected again to balance the pressure inside the coating cavity 3, so that the pressure maintained in the coating cavity 3 is the same as the driving force of the pressure plate 15 moving downward on the plastic raw material, so that during the feeding process, the melted plastic raw material is still kept under pressure and coated on the outside of the cable core and discharged along with the cable core. After the feeding is completed, the second electromagnetic switch 502 is closed, and the pressure plate 15 moves downward again under the action of rotation to apply pressure to the plastic raw material.

[0120] As an optional embodiment, it also includes:

[0121] The positioning cylinder 26 is fixed on the inner wall of the end of the inner cavity 201;

[0122] The oily paper 27 is attached to the inner wall of the positioning tube 26, and the two end edges of the oily paper 27 are folded to cover the outer wall of the positioning tube 26;

[0123] The winding roller 28 and the unwinding roller 29 are both rotatably mounted inside the winding space opened inside the processing table 2;

[0124] The cover plate 3001 is installed at the end of the processing table 2 and is used to seal the winding space;

[0125] Two third motors 30 are installed on the side wall of the cover plate 3001, and are used to drive the winding roller 28 and the unwinding roller 29 to rotate, so as to rewind and replace the oil-faced paper 27;

[0126] When the plastic coated on the outside of the cable core passes through the interior of the positioning tube 26 together with the cable core, since the interior of the positioning tube 26 is attached with oily paper 27, it is helpful to avoid the plastic from adhering to the interior of the positioning tube 26, thereby preventing the plastic from adhering to the interior of the positioning tube 26 and solidifying, thereby affecting the subsequent cable core coating.

[0127] The two sides of the oil-faced paper 27 are folded and covered on the outer wall of the positioning tube 26, so that the oil-faced paper 27 can be attached to the inner wall of the positioning tube through the support of the two sides, which is helpful to avoid the oil-faced paper 27 being affected by the pulling force when winding and replacing, thereby affecting the plastic coating on the outside of the cable core;

[0128] After the oil surface of the oily facial paper 27 is damaged after long-term use, the third motor 30 is started. The third motor 30 drives the winding roller 28 and the unwinding roller 29 to rotate through the output shaft. After the winding roller 28 and the unwinding roller 29 rotate, they drive the winding roller 28 and the unwinding roller 29 to rotate, thereby realizing the replacement of the oily facial paper 27, which is beneficial to maintaining the anti-sticking effect of the oily facial paper 27.

[0129] As an optional embodiment, the middle of the cover plate 3001 has a circular hole for the cable core to pass through, an annular plate 31 is fixed inside the circular hole, a scraper 32 is fixed on the side of the annular plate 31 facing the processing table 2, and a waste port 33 for waste discharge is opened at the bottom of the circular hole;

[0130] Due to the presence of the oily paper 27, the connection of the oily paper 27 will cause the plastic coating on the cable core to have a protruding portion after completion. The protruding portion can be scraped off by setting the scraper 32, and the scraped waste is discharged along the waste port 33, which is conducive to the uniform and smooth coating of the cable core.

[0131] like Figure 1 A control method for a cable core coating device for power cable processing is shown, a controller is installed on the side wall of the base 1, and a first pressure sensor is installed at the bottom of the screw 7. The control method includes the following steps:

[0132] The controller receives first pressure information generated by the first pressure sensor when under pressure;

[0133] The controller generates material replenishment control information according to the first pressure information, and the material replenishment control information is used to control the material melting component to start melting and replenishing the material;

[0134] The controller sends the material filling control information to the material melting component to control the material melting component to start melting and filling the material;

[0135] The first pressure sensor generates first pressure information when under pressure, and sends the first pressure information to the controller. The controller receives the first pressure information and generates material replenishment control information according to the first pressure information after receiving the first pressure information. Subsequently, the controller sends the material replenishment control information to the melting component to control the start of the melting component. After the melting component is started, the material replenishment is melted.

[0136] As an optional embodiment, a second pressure sensor is installed at the bottom of the annular frame 8, and further includes:

[0137] The controller receives second pressure information generated by the second pressure sensor when under pressure;

[0138] The controller generates push control information according to the second pressure information, and the push control information is used to control the second motor 20 to drive the stirring element to rotate counterclockwise;

[0139] The controller sends the push control information to the second motor 20 to control the second motor 20 to drive the stirring element to rotate counterclockwise;

[0140] After the second pressure sensor is pressurized, it generates second pressure information, and then the second pressure sensor sends the second pressure information to the controller. The controller receives the second pressure information and generates push control information based on the received second pressure information. Then the controller sends the push control information to the second motor 20 to control the start of the second motor 20. After the second motor 20 is started, it drives the stirring element to rotate counterclockwise.

[0141] As an optional embodiment, it also includes:

[0142] The controller generates the reset control information and the yield control information while generating the push control information. The reset control information is used to control the driving component to reversely drive the pressure plate 15 to reset, and the yield control information is used to control the first electromagnet 18 to be powered on and started;

[0143] The controller sends the reset control information to the driving component to control the driving component to reversely drive the pressure plate 15 to reset;

[0144] The controller sends the yield control information to the first electromagnet 18 to control the first electromagnet 18 to be powered on and started;

[0145] The controller generates reset control information and yield control information based on the received first pressure information, and then sends the reset control information to the drive component to control the drive component to start in reverse. After the drive component starts in reverse, it drives the pressure plate 15 to reset. The controller sends the yield control information to the first electromagnet 18 to control the first electromagnet 18 to be powered on and started.

[0146] Working principle of the present invention: the cable core passes through the inner cavity 201 inside the processing table 2, the staff puts the plastic raw material inside the melting component, the melting component melts the plastic raw material, and then transports the plastic raw material to the inside of the coating cavity 3, so that the cable core is coated when the cable core passes through the coating cavity 3, and a scraping component is arranged inside the coating cavity 3, so that the melted plastic raw material can scrape the edge of the coating cavity 3 when it is stored inside the coating cavity 3, so as to prevent the melted plastic raw material from being cooled and solidified after contacting the inner wall of the coating cavity 3, so as to prevent the cold and solidified plastic raw material from affecting the coating quality when coating the cable core;

[0147] When the raw material inside the coating cavity 3 is insufficient, the melting component melts the plastic raw material. The melting component completes the melting of the plastic raw material before the raw material is exhausted, and at the same time, the melted plastic raw material is transported to the inside of the coating cavity 3, thereby helping to avoid the inefficiency caused by waiting for refilling when the raw material is exhausted;

[0148] Therefore, a small amount of raw materials is melted in a cycle to avoid cooling of the raw materials after melting, and interruption of the raw materials is avoided by continuous feeding, which is beneficial to improving the coating efficiency of the cable core.

[0149] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A cable core coating device for power cable processing, comprising a base (1), a processing table (2) being fixed on the top of the base (1), an inner cavity (201) being provided inside the processing table (2) for the cable to pass through, characterized in that: Also includes: A coating cavity (3) is provided inside the processing table (2), and the cable core is coated after passing through the coating cavity (3); A melting material assembly is installed on the top of the processing table (2) and is used to melt the plastic after loading, so as to inject the melted plastic into the coating cavity (3) under pressure to coat the cable core; a scraping assembly installed inside the coating cavity (3) and used to re-stir the molten plastic that has entered the coating cavity (3) and contacted the inner wall, so as to prevent the molten plastic from adhering to the side wall of the coating cavity (3) and causing solidification; The melt component comprises: A feed hopper (4) is fixed to the top of the processing table (2), and a first electromagnetic switch (401) is installed inside the bottom discharge port of the feed hopper (4); A melting chamber (5) fixed to the top of the processing table (2); a stirring member installed inside the melting chamber (5), the stirring member switching states by bidirectional rotation, switching to a stirring state when the stirring member rotates clockwise to melt and stir the plastic inside the melting chamber (5), and switching to a pressurizing state when the stirring member rotates counterclockwise to continuously pressurize the melted plastic inside the melting chamber (5) and input it into the coating chamber (3); A second motor (20) is fixed to the top of the melting chamber (5) and is used to drive the stirring element to rotate; A partition (6) is fixed to the bottom of the melting chamber (5) and is used to seal and separate the coating chamber (3); a discharge port (501) for the molten plastic to pass through is provided between the partition (6) and the melting chamber (5); a second electromagnetic switch (502) is installed inside the discharge port (501); The stirring member comprises: Agitating blades (21), wherein four agitating blades (21) form a group and a plurality of groups are provided; Rotating connecting members (22), wherein four rotating connecting members (22) form a group and a plurality of groups are provided, wherein the rotating connecting members (22) are fixedly connected to the stirring blades (21) in a one-to-one correspondence, and all the rotating connecting members (22) are rotatably connected in sequence along a vertical direction; The topmost rotating connecting member (22) is connected to the output shaft of the second motor (20), and the tops of the remaining rotating connecting members (22) are all provided with circular grooves; The bottom of the lowest rotating connection member (22) is rotatably connected to the bottom of the melting chamber (5), and the bottoms of the remaining rotating connections (22) are all fixed with rotating pins (23), and the rotating pins (23) are fan-shaped and have an inner angle of 30 degrees; A first limit block (24) corresponds to the circular groove one by one and is fixed inside the circular groove. When all the rotating pins (23) are in contact with the corresponding first limit blocks (24), all the stirring blades (21) are in the shape of spiral blades; A third limit block (2502) is arranged corresponding to the topmost rotating connection member (22) of each group behind the rotating connection member (22) except the topmost one of the whole rotating connection member (22), and is fixed inside the corresponding rotating connection member (22), and the third limit block (2502) forms an angle of 165 degrees with the first limit block (24); A second limit block (2501) is arranged corresponding to each group of the three rotating connecting members (22) below, and is fixed inside the corresponding rotating connecting member (22); the second limit block (2501) and the first limit block (24) form an angle of 75 degrees; when all the rotating pins (23) are in contact with the corresponding third limit block (2502) and the second limit block (2501), all the stirring blades (21) are distributed in four groups of arrays; The scraping assembly comprises: An annular frame (8) is rotatably sleeved inside the installation space opened at the edge of the partition (6); A plurality of heat-conducting metal rods (9) are fixed to the bottom of the annular frame (8) in a circumferential array, and scrapers (10) are fixed to the side walls of the heat-conducting metal rods (9), and the scrapers (10) are in scraping contact with the inner wall of the coating cavity (3); A driving assembly is mounted on the top of the processing table (2) and is used to drive the annular frame (8) to rotate.

2. A cable core covering device for power cable processing according to claim 1, characterized in that: Also includes: A heating wire (11) is arranged corresponding to the heat-conducting metal rod (9) and inserted into a cylindrical groove opened inside the corresponding heat-conducting metal rod (9); A rotating electrical connector is mounted on the top of the annular frame (8) and is used to maintain electrical connection to the heating wire (11) while the annular frame (8) rotates.

3. A cable core covering device for power cable processing according to claim 2, characterized in that: Also includes: A screw (7) fixed to the bottom of the partition (6); A pressure plate (15) is spirally sleeved on the outside of the screw rod (7), and the outer ring of the pressure plate (15) is slidably connected to the heat-conducting metal rod (9) via a clearance groove; A plurality of through grooves (16) are provided, which are arranged in a circular array and penetrate through the top of the pressure plate (15); A sealing plate (17) is arranged corresponding to the through groove (16) and is slidably mounted inside a mounting groove provided on a side wall of the through groove (16); A second electromagnet (19) is arranged corresponding to the through slot (16) and is fixedly embedded in the other side wall of the through slot (16); A first electromagnet (18) is arranged corresponding to the through slot (16) and fixed inside the mounting slot; A pressure valve is installed through the bottom of the partition (6) to maintain the air pressure inside the covering cavity (3).

4. A cable core covering device for power cable processing according to claim 3, characterized in that: Also includes: A positioning cylinder (26) fixed to the inner wall of the end of the inner cavity (201); The oily facial paper (27) is attached to the inner wall of the positioning tube (26), and the two end edges of the oily facial paper (27) are folded and covered on the outer wall of the positioning tube (26); The winding roller (28) and the unwinding roller (29) are both rotatably mounted inside a winding space opened inside the processing table (2); A cover plate (3001) is installed at the end of the processing table (2) and is used to seal the winding space; Two third motors (30) are mounted on the side wall of the cover plate (3001) and are used to drive the reeling roller (28) and the unreeling roller (29) to rotate so as to reel and replace the oily face paper (27).

5. A control method for a cable core coating device for power cable processing, applicable to a cable core coating device for power cable processing as claimed in any one of claims 3 to 4, characterized in that: A controller is installed on the side wall of the base (1), and a first pressure sensor is installed at the bottom of the screw (7). The control method comprises the following steps: The controller receives first pressure information generated by the first pressure sensor when under pressure; The controller generates material replenishment control information according to the first pressure information, and the material replenishment control information is used to control the melting component to start melting and replenishing the material; The controller sends the material replenishment control information to the material melting component to control the material melting component to start melting and replenishing the material.

6. The control method of a cable core covering device for power cable processing according to claim 5, characterized in that: A second pressure sensor is installed at the bottom of the annular frame (8), and further comprises: The controller receives second pressure information generated by the second pressure sensor when under pressure; The controller generates push control information according to the second pressure information, wherein the push control information is used to control the second motor (20) to drive the stirring element to rotate counterclockwise; The controller sends the pushing control information to the second motor (20) to control the second motor (20) to drive the stirring element to rotate counterclockwise.

7. The control method of a cable core covering device for power cable processing according to claim 5, characterized in that: Also includes: The controller generates reset control information and yield control information while generating the push control information, the reset control information being used to control the drive component to reversely drive the pressure plate (15) to reset, and the yield control information being used to control the first electromagnet (18) to be powered on and started; The controller sends the reset control information to the drive component to control the drive component to reversely drive the pressure plate (15) to reset; The controller sends the yield control information to the first electromagnet (18) to control the first electromagnet (18) to be powered on and started.

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