Cable core coating forming device for civil cable production

Abstract

The invention relates to the technical field of cable production, and particularly discloses a cable core coating forming device for civil cable production, which comprises a mounting frame, an extrusion assembly for extruding a coating material is arranged on the inner side of the mounting frame, an extrusion barrel is arranged at the bottom of the extrusion assembly, and a cable core penetrates into the extrusion barrel. The left side of the mounting rack is provided with a cooling assembly used for cooling a coating material, and the coating forming device is characterized by further comprising a pretreatment assembly arranged on the right part of the mounting rack, the pretreatment assembly is used for preheating a cable core and cleaning the surface of the cable core, and the pretreatment assembly comprises a frame arranged on the right part of the mounting rack; through cooperation of the structure, warm water generated after heat absorption can be used for preheating a cable core, energy loss during preheating is reduced, meanwhile, dust and impurities attached to the surface of the cable core can be removed through bristles, and the situation that dust affects bonding between the cable core and a coating material is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, in particular to a cable core covering and molding device for producing civil cables. Background Art

[0002] The cable core is the conductive part of the power cable, used to transmit electrical energy. It is the main part of the power cable. Currently, copper or aluminum is generally used as the cable core. Polyethylene is a thermoplastic made by polymerizing ethylene. It has good electrical insulation properties, but low heat resistance and mechanical strength. Polyethylene molecular chains are formed into a three-dimensional network structure by chemical cross-linking or radiation cross-linking. During processing, cross-linked polyethylene cables need to be coated with a layer of cross-linked polyethylene material on the cable core to achieve the purpose of insulation. This is where the overmolding device is used.

[0003] The wire core temperature is too low during overmolding. When the extruded molten material is bonded to the wire core, it solidifies and cools quickly when it is cooled, and the bonding is not tight enough, thus affecting the quality of the produced cable.

[0004] To this end, the "body is a cable core overmolding device for cable production" with publication number "CN115050523A", which heats the wire core through two pairs of preheating tubes through the heater. The wire core passes through the preheating tubes before entering the hollow rod, thereby achieving the purpose of preheating the wire core. It solves the problem that the wire core temperature is too low during overmolding, and the extruded molten material is quickly solidified and cooled when it is cold when it is bonded to the wire core, resulting in insufficient bonding and separation of the inner and outer layers of the cable.

[0005] However, in the actual processing process, heating with a heater will result in a high consumption of energy, and since dust, impurities and an oxide layer will adhere to the surface of the cable core, if the dust on the surface of the cable core is not cleaned in advance, the adhesion between the cable core and the coating material will be affected, affecting the quality of the produced cable. Summary of the Invention

[0006] The purpose of the present invention is to provide a cable core covering molding device for civil cable production, which can use the warm water generated after absorbing heat to preheat the cable core, thereby reducing the energy loss during preheating. At the same time, it can use the bristles to remove dust and impurities attached to the surface of the cable core, thereby reducing the dust from affecting the adhesion between the cable core and the covering material, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a cable core overmolding device for civil cable production, comprising a mounting frame, an extrusion assembly for extruding a coating material disposed inside the mounting frame, an extrusion barrel disposed at the bottom of the extrusion assembly, the cable core being passed through the extrusion barrel, and a cooling assembly for cooling the coating material disposed on the left side of the mounting frame, characterized in that the overmolding device further comprises:

[0008] A pretreatment component is arranged on the right side of the mounting frame. The pretreatment component is used to preheat the cable core and clean the surface. The pretreatment component includes a frame arranged on the right side of the mounting frame. A water spray frame is arranged inside the frame. A cleaning frame is arranged inside the water spray frame. Brush bristles are arranged inside the cleaning frame. A pipe connected to the cooling component is fixedly connected to the bottom of the water spray frame. The pipe is used to input the heat-absorbed water into the interior of the water spray frame. A nozzle is arranged inside the pipe. A moving frame is arranged on the left side of the cleaning frame. A spiral groove is opened on the surface of the moving frame. A fixed pipe is arranged inside the left side of the frame. A guide slider that moves inside the spiral groove is arranged inside the fixed pipe.

[0009] The right part of the water spray frame is provided with a transmission assembly for driving the water spray frame to move.

[0010] Preferably, a sliding groove is provided at a position of the cleaning frame corresponding to the nozzle.

[0011] Preferably, the transmission assembly comprises:

[0012] The mounting box is arranged on the mounting frame and is located on the right side of the frame. The top and bottom ends of the inner side of the frame are rotatably connected to the extrusion wheels. The extrusion wheel on the upper side can slide. The front and rear ends of the central axis of the extrusion wheel on the lower side pass through the frame and are fixedly connected to a disc. The eccentric part of the disc is fixedly connected to a driving rod. A moving frame is provided on the outer side of the driving rod. The left sides of the two moving frames are fixedly connected to a connecting frame. A round rod is fixedly connected between the connecting frame and the frame, and the round rod slides inside the frame.

[0013] Preferably, a drainage groove is provided at the bottom of the frame, and a through groove is provided on the moving frame near the cleaning frame.

[0014] Preferably, a heating box is provided in the middle portion of the pipeline, and a heating element for heating is installed inside the heating box.

[0015] Preferably, the overmolding device further comprises:

[0016] The wiper assembly is arranged on the left side of the frame, and includes a sleeve rod fixedly connected to the left side of the moving frame, a through rod slidably connected to the left side of the sleeve rod, a circular ring fixedly connected to the left side of the through rod, and a flexible scraper ring fixedly connected to the inner side of the circular ring;

[0017] The wiper assembly also includes a limiting frame fixedly connected to the top of the left side of the frame. The limiting frame is provided with a limiting groove near the ring, and the ring side of the ring is located inside the limiting groove near the limiting groove.

[0018] Preferably, a ball is rotatably connected inside the limiting groove to reduce friction.

[0019] Preferably, the overmolding device further comprises:

[0020] The drying assembly is arranged on the left side of the wiper assembly. The drying assembly includes a circular frame fixedly connected to the inner side of the mounting frame. A drying frame is arranged inside the circular frame. A wiping dryer portion is arranged inside the drying frame. A ventilation frame is fixedly connected to the left side of the drying frame. A rotating tube is fixedly connected to the inner side of the ventilation frame. A driving assembly for driving the rotating tube to rotate is arranged on the inner side of the mounting frame. A small tube is fixedly connected to the right side of the ventilation frame. A spray hood is fixedly connected to the right side of the small tube. A baffle is rotatably connected to the right part of the ventilation frame.

[0021] Preferably, the wiping portion includes:

[0022] There are two pulleys, and the pulleys rotate on both sides of the drying frame. The external transmission of the pulley is connected with a transmission belt, the outer side of the transmission belt is fixedly connected with a drying cotton, and an empty groove is opened inside the transmission belt.

[0023] Preferably, the drying assembly further comprises:

[0024] The ring cover is arranged on the left side of the ventilation frame, and an air inlet pipe is fixedly inserted between the ring cover and the baffle.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Through the function of the pretreatment component, the warm water generated after heat absorption can be used to preheat the cable core, reducing the energy loss during preheating. At the same time, the brush can be used to remove dust and impurities attached to the surface of the cable core, reducing the dust from affecting the adhesion between the cable core and the coating material;

[0027] 2. Through the cooperation of the pretreatment component and the transmission component, the cleaning frame can move back and forth with the bristles configured thereon, thereby improving the cleaning effect of the bristles on the cable core. At the same time, the rotation of the bristles cleans the oxide layer and dust on the cable core, further improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is an overall structural view of the present invention;

[0030] Figure 2 It is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0031] Figure 3 A schematic diagram of a half-section structure of a frame of the present invention;

[0032] Figure 4 It is a schematic side sectional structure diagram of the installation box of the present invention;

[0033] Figure 5 It is a schematic side sectional structure diagram of the water spray frame of the present invention;

[0034] Figure 6 It is a schematic diagram of a half-section structure of the cleaning frame of the present invention;

[0035] Figure 7 It is a partial structural schematic diagram of the connecting frame of the present invention;

[0036] Figure 8 It is a schematic diagram of the partial structure of the ring of the present invention;

[0037] Figure 9 This is a schematic diagram of the partial explosion structure of the fixed pipe of the present invention;

[0038] Figure 10 It is a schematic diagram of a half-section structure of a circular frame of the present invention;

[0039] Figure 11 It is a partial structural schematic diagram of the wiping portion of the present invention;

[0040] Figure 12 It is a side structural schematic diagram of the drying frame of the present invention.

[0041] Description of reference numerals:

[0042] 1. Mounting frame; 2. Extrusion assembly; 3. Extrusion barrel; 4. Cooling assembly; 5. Pretreatment assembly; 51. Frame; 52. Water spray frame; 53. Cleaning frame; 54. Pipe; 55. Spray pipe; 56. Moving frame; 57. Guide slide; 58. Fixed pipe; 59. Drain trough; 510. Heating box; 6. Transmission assembly; 61. Mounting box; 62. Extrusion wheel; 63. Disc; 64. Driving rod; 65. Moving frame; 66. Connecting frame; 67. Round rod; 7 , wiper assembly; 71, sleeve rod; 72, through rod; 73, circular ring; 74, flexible scraper ring; 75, limiting frame; 76, limiting groove; 8, drying assembly; 81, circular frame; 82, drying frame; 83, ventilation frame; 84, rotating pipe; 85, drying dryer; 851, pulley; 852, transmission belt; 853, drying cotton; 86, ring cover; 87, small tube; 88, spray cover; 89, baffle; 810, air inlet pipe; 9, drive assembly; 10, slide. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Example 1: Please refer to Figures 1 to 9 The present invention provides a technical solution: a cable core coating molding device for civil cable production, comprising a mounting frame 1, an extrusion assembly 2 for extruding coating material is installed on the inner side of the mounting frame 1, an extrusion barrel 3 is installed at the bottom of the extrusion assembly 2, and the cable core is inserted into the extrusion barrel 3. A cooling assembly 4 for cooling the coating material is installed on the left side of the mounting frame 1. The coating molding device also includes a pretreatment assembly 5 configured on the right side of the mounting frame 1. The pretreatment assembly 5 is used to preheat the cable core and clean the surface. The pretreatment assembly 5 includes a frame 51 fixed to the right side of the mounting frame 1. The frame 51 A water spray frame 52 is movable inside, and a cleaning frame 53 is movable inside the water spray frame 52. Bristles are fixed inside the cleaning frame 53. A pipe 54 connected to the cooling component 4 is fixedly connected to the bottom of the water spray frame 52. The pipe 54 is used to input the heat-absorbed water into the water spray frame 52. A nozzle 55 is fixedly connected to the inner side of the pipe 54. A heating box 510 is arranged in the middle part of the pipe 54. A heating element for heating is installed inside the heating box 510. A drainage groove 59 is provided at the bottom of the frame 51. A liquid pump is installed inside the pipe 54 to allow water to enter the interior of the water spray frame 52.

[0045] By adopting the above technical solution, the extrusion component 2 adopts a screw extruder, which is a mature existing technology and will not be elaborated on. The cooling component 4 includes a cylinder for cooling, and the cable core passes through the cylinder. The top of the cylinder is plugged into a cold water pipe for cooling water. After the cold water pipe enters the cylinder, it can be branched into multiple branches, and multiple branches are facing the cable core and the surrounding of the coating from different angles, which are used to evenly spray cold water from different directions to the coated cross-linked polyethylene material to achieve cooling of the coating material. This cooling technology is a mature existing technology and will not be elaborated on. When the device is used, the cable core is extruded through the cylinder 3, the pretreatment component 5 and the cooling component 4, and the cable core is pulled at the left end of the cable core. The pulling technology is a mature existing technology and will not be elaborated on.

[0046] During coating, the required cross-linked polyethylene material is placed inside the extrusion component 2, and the cross-linked polyethylene material is melted and extruded into the interior of the extrusion barrel 3 through the extrusion component 2 to coat the cable core. As the cable core is pulled, the surface of the cable core can be evenly coated.

[0047] Before the cable core is coated, the cable core is pretreated by the pretreatment component 5. After the coating material is cooled and absorbs heat, the hot water enters the interior of the water spray frame 52 through the pipe 54, and is then sprayed to the ring side of the cable core through multiple nozzles 55. In this way, the cable core is preheated with the cooled water, the temperature of the cable core is increased during coating, and the molten material is reduced from solidifying and cooling rapidly when it is cold when it is bonded to the cable core, resulting in insufficient bonding. At the same time, the cable core is preheated with warm water generated after the cooling water absorbs heat, reducing energy loss during preheating.

[0048] It should be noted that a collecting box is provided at the bottom of the frame 51 for preheating water which is sprayed onto the cable core and then discharged from the drainage trough 59 and enters the collecting box. The pipe 54 is made of a section of flexible pipe near the water spray frame 52 .

[0049] As the cable core moves due to traction, it can move, so that the cable core and the bristles produce relative movement, thereby cleaning the impurities on the surface of the cable core, removing dust impurities attached to the surface of the cable core, reducing the dust affecting the adhesion between the cable core and the coating material, improving the tightness between the coating material and the cable core, and improving the quality of the produced cable.

[0050] The sprayed water cooperates with the bristles to clean the cable core, which is beneficial to improving the cleaning effect of the cable core, further improving the tightness between the coating material and the cable core, and improving the quality of the produced cable.

[0051] In the initial processing state, since no hot coating material has entered the cooling assembly 4, the temperature of the water used for preheating is low. The water is heated by the heating element inside the heating box 510. The heating element can use an electric heating wire, which is a mature existing technology and will not be elaborated on.

[0052] A moving frame 56 is fixed to the left side of the cleaning frame 53, and a spiral groove is opened on the surface of the moving frame 56. A fixed pipe 58 is fixed to the inside of the left side of the frame 51. A guide slider 57 that moves inside the spiral groove is fixed to the inside of the fixed pipe 58. The left part of the moving frame 56 moves in the fixed pipe 58. A transmission component 6 for driving the water spray frame 52 to move is provided on the right side of the water spray frame 52. The cleaning frame 53 is provided with a slide groove 10 at the position corresponding to the nozzle 55. The transmission component 6 includes an installation box 61 fixed to the mounting frame 1 on the right side of the frame 51. The frame 51 The inner top and bottom ends are rotatably connected to the extrusion wheels 62, the extrusion wheel 62 on the upper side can slide, and the front and rear ends of the central axis of the extrusion wheel 62 on the lower side pass through the frame 51 and are fixedly connected to the disc 63, the eccentric part of the disc 63 is fixedly connected to the driving rod 64, and the outer side of the driving rod 64 is provided with a moving frame 65, and the left sides of the two moving frames 65 are jointly fixedly connected to a connecting frame 66, and a round rod 67 is fixedly connected between the connecting frame 66 and the frame 51, and the round rod 67 slides inside the frame 51, and the moving frame 56 is provided with a through groove near the cleaning frame 53.

[0053] By adopting the above technical solution, during production preparation, the cable core passes through the two extrusion wheels 62. The central axis of the upper extrusion wheel 62 is rotatably connected to a slider, and the slider is raised and lowered by rotating the bolt to adjust the control. When the cable core is inserted, the upper extrusion wheel 62 is moved upward as a whole through the adjustment of the bolt, which facilitates the insertion of the cable core. When the device is in use, the upper extrusion wheel 62 is moved downward, so that the two extrusion wheels 62 have sufficient extrusion force on the cable core, and the extrusion wheel 62 is fixedly connected to the rubber anti-slip pad to ensure that there is sufficient friction between the extrusion wheel 62 and the cable core.

[0054] In addition to dust and impurities on the surface of the cable core, there may also be an oxide layer. When the cable core is pulled by an external traction device, the friction between the extrusion wheel 62 and the cable core can cause the extrusion wheel 62 to rotate. When the extrusion wheel 62 at the bottom rotates, the central axis of the extrusion wheel 62 can rotate with the disc 63, thereby rotating the eccentrically installed driving rod 64. When the eccentrically installed driving rod 64 rotates along the axis of the disc 63, the driving rod 64 moves inside the motion frame 65, thereby causing the motion frame 65 to move in the left and right directions. This causes the connecting frame 66 to reciprocate with the round rod 67 in the left and right directions, thereby causing the water spray frame 52 to reciprocate. Under the action of the nozzle 55 in the slide groove 10, the cleaning frame 53 reciprocates with its configured bristles, thereby improving the cleaning effect of the bristles on the cable core, which can play a role in cleaning the oxide layer and dust, further improving the impurity removal effect, and further improving the tightness between the coating material and the cable core, thereby improving the quality of the produced cable.

[0055] When the cleaning frame 53 reciprocates with the water spray frame 52, the cleaning frame 53 moves with the moving frame 56. At this time, relative movement occurs between the moving frame 56 and the fixed tube 58. Under the cooperation of the spiral groove and the guide slider 57, the moving frame 56 and the fixed tube 58 rotate, so that the cleaning frame 53 rotates inside the water spray frame 52. When the cleaning frame 53 rotates, the bristles can be rotated to clean the oxide layer and dust on the cable core, further improving the cleaning effect, thereby improving the tightness between the coating material and the cable core, and improving the quality of the produced cable. When rotating for cleaning, the blind area of cleaning can be reduced and the comprehensiveness of cleaning can be improved.

[0056] It should be noted that the pitch of the spiral groove is large and the length is small. When the cleaning frame 53 reciprocates, the rotation angle of the cleaning frame 53 is small.

[0057] It should be noted that the friction force generated between the extrusion wheel 62 and the cable core is greater than the resistance of the water spray frame 52 during movement.

[0058] It should be noted that the water sprayed from the nozzle 55 can flush the bristles configured in the cleaning frame 53, thereby improving the degree of crystallization of the bristles, and the movement of the bristles can also help to shake out impurities adhering to the bristles. When the cleaning frame 53 rotates, the position of the bristles and the position of the nozzle 55 change, which facilitates the nozzle 55 to flush different positions, thereby improving the flushing effect.

[0059] The overmolding device also includes a wiper assembly 7 arranged on the left side of the frame 51. The wiper assembly 7 includes a sleeve rod 71 fixedly connected to the left side of the moving frame 56. The left side of the sleeve rod 71 is slidably connected to a through rod 72. The left side of the through rod 72 is fixedly connected to a circular ring 73. The inner side of the circular ring 73 is fixedly connected to a flexible scraper ring 74. The wiper assembly 7 also includes a limiting frame 75 fixedly connected to the top left side of the frame 51. The limiting frame 75 is provided with a limiting groove 76 near the circular ring 73. The ring side of the circular ring 73 is located inside the limiting groove 76 near the limiting groove 76. The inner side of the limiting groove 76 is rotatably connected to a ball for reducing friction.

[0060] By adopting the above technical solution, the flexible scraper ring 74 is made of flexible rubber material, which can scrape out the residual moisture after flushing and preheating, avoiding affecting subsequent processing and further avoiding affecting the quality of the produced cable.

[0061] When the moving frame 56 is rotated by the fixed tube 58 and the guide slider 57, the sleeve rod 71 can rotate with the through rod 72, so that the circular ring 73 can rotate with the flexible scraper ring 74, which is beneficial for wiping the water while using centrifugal force to throw away the scraped water, thereby improving the wiping effect.

[0062] Under the limiting effect of the limiting groove 76 , the circular ring 73 can limit the circular ring 73 , and when the moving frame 56 rotates, it will also move left and right. At this time, the sleeve rod 71 slides with the through rod 72 .

[0063] Embodiment 2: The technical solution of this embodiment is different from that of embodiment 1 in that: Figure 1 、 Figure 2 、 Figure 10 、 Figure 11 and Figure 12 The overmolding device also includes a wiping assembly 8 arranged on the left side of the wiper assembly 7, and the wiping assembly 8 includes a circular frame 81 fixedly connected to the inner side of the mounting frame 1, and a drying frame 82 is provided inside the circular frame 81. The drying frame 82 rotates along the axis of the circular frame 81, and a wiping dry area 85 is provided inside the drying frame 82. The left side of the drying frame 82 is fixedly connected to a ventilation frame 83, and the inner side of the ventilation frame 83 is fixedly connected to a rotating tube 84. A driving assembly 9 for driving the rotating tube 84 to rotate is provided on the inner side of the mounting frame 1. The driving assembly 9 includes a first motor fixed to the inner side of the mounting frame 1, and the output shaft of the first motor and the outer wall of the rotating tube 84 are fixedly connected with gears. The two gears mesh with each other. When the output shaft of the first motor rotates, the rotating tube 84 rotates under the action of the two gears, and the right side of the ventilation frame 83 is fixedly plugged. It is connected to a small tube 87, and a spray hood 88 is fixedly inserted on the right side of the small tube 87. The right part of the ventilation frame 83 is rotatably connected to the baffle 89. The wiping dryer 85 includes a pulley 851. There are two pulleys 851, one of which is driven by the second motor, and the pulley 851 rotates on both sides of the drying frame 82. The external transmission of the pulley 851 is connected to a transmission belt 852. A battery is installed on the drying frame 82 to power the second motor. The outer side of the transmission belt 852 is fixedly connected to the drying cotton 853, and an empty groove is provided inside the transmission belt 852. The drying component 8 also includes a ring cover 86 that rotates on the left side of the ventilation frame 83. An air inlet pipe 810 is fixedly inserted between the ring cover 86 and the baffle 89. An air pump is installed inside the air inlet pipe 810 to make the gas flow to the spray hood 88.

[0064] By adopting the above technical solution, after scraping out the moisture, a certain amount of moisture still remains on the cable core, making the surface of the cable core relatively moist. Therefore, this solution designs a drying component 8. When drying, the driving component 9 drives the rotating tube 84 to rotate, so that the rotating tube 84 can rotate with the ventilation frame 83 and the drying frame 82. At this time, the drying cotton 853 in the wiping portion 85 rotates accordingly, and the drying cotton 853 removes the moisture on the cable core, thereby reducing the impact of moisture on the fitting of the coating material and the cable core, and improving the quality of cable production.

[0065] While the drying frame 82 rotates with the wiping portion 85, the second motor drives one of the pulleys 851 to rotate, so that the transmission belt 852 moves with the drying cotton 853 in the opposite direction of the cable core, further improving the effect of removing moisture from the cable core surface.

[0066] And due to the movement of the transmission belt 852, the part of the drying cotton 853 containing water after wiping moves to a position close to the spray hood 88. A spray hole is provided on the top of the spray hood 88. The annular cover 86 is installed on the left side of the extruder barrel 3. The cable core that has just been coated passes through the annular cover 86. At this time, the air pump is started, so that the gas inside the small tube 87 flows to the spray hood 88, and the external gas enters the annular cover 86 and enters the spray hood 88. In this process, the external air initially cools the cable core and the coating material. After cooling, the heat-absorbing air enters the air inlet pipe 810 and is finally sprayed out from the spray hood 88 to dry the moisture absorbed by the drying cotton 853.

[0067] It should be noted that the wiper assembly 7 first scrapes out more water, and the drying cotton 853 wipes off less water.

[0068] It should be noted that the ring cover 86 is initially cooled by air cooling, and the cooling assembly 4 is cooled by water cooling to achieve staged cooling, so as to avoid stress in the coating material caused by rapid cooling and thus affect the quality of the cable.

[0069] Working principle: When coating, the required cross-linked polyethylene material is placed into the interior of the extrusion component 2, and the cross-linked polyethylene material is melted and extruded into the interior of the extrusion barrel 3 through the extrusion component 2 to achieve coating of the cable core. As the cable core is pulled, the surface of the cable core can be evenly coated.

[0070] Then, the water is sprayed toward the annular side of the cable core through multiple nozzles 55, so as to utilize the cooling water to preheat the cable core, increase the temperature of the cable core during coating, and reduce the rapid solidification and cooling of the molten material when it is cold and adheres to the cable core, resulting in insufficient bonding. At the same time, the warm water generated after the cooling water absorbs heat is used to preheat the cable core, reducing the energy loss during preheating, and allowing the cable core to move, thereby causing the cable core and the bristles to move relative to each other, thereby cleaning the impurities on the surface of the cable core, removing dust and impurities attached to the surface of the cable core, reducing the dust from affecting the bonding between the cable core and the coating material, improving the tightness between the coating material and the cable core, and improving the quality of the produced cables. The sprayed water is combined with the bristles to clean the cable core, which is beneficial to improving the cleaning effect of the cable core, further improving the tightness between the coating material and the cable core, and improving the quality of the produced cables.

[0071] When the cable core is pulled by the external traction equipment, the extrusion wheel 62 can be rotated due to the friction between the extrusion wheel 62 and the cable core. When the extrusion wheel 62 at the bottom rotates, the central axis of the extrusion wheel 62 can rotate with the disc 63, thereby rotating the eccentrically installed driving rod 64. When the eccentrically installed driving rod 64 rotates along the axis of the disc 63, the driving rod 64 moves inside the motion frame 65, thereby causing the motion frame 65 to move in the left and right directions, so that the connecting frame 66 reciprocates with the round rod 67 in the left and right directions, thereby causing the water spray frame 52 to reciprocate. Under the action of the nozzle 55 in the slide groove 10, the cleaning frame 53 reciprocates with its configured bristles, thereby improving the cleaning effect of the bristles on the cable core, and can play a role in cleaning the oxide layer and dust, further improving the cleaning effect of the impurities. In order to improve the cleaning effect of the quality, the cleaning frame 53 moves with the moving frame 56. At this time, relative movement occurs between the moving frame 56 and the fixed tube 58. Under the cooperation of the spiral groove and the guide slider 57, the moving frame 56 and the fixed tube 58 rotate, so that the cleaning frame 53 rotates inside the water spray frame 52. When the cleaning frame 53 rotates, the bristles can be rotated to clean the oxide layer and dust on the cable core, further improving the cleaning effect, thereby improving the tightness between the coating material and the cable core. The water sprayed by the nozzle 55 can flush the bristles configured in the cleaning frame 53, thereby improving the crystallization degree of the bristles, and the movement of the bristles can also help to shake out impurities adhered to the bristles. When the cleaning frame 53 rotates, the position of the bristles and the position of the nozzle 55 change, which is beneficial for the nozzle 55 to flush different positions, thereby improving the flushing effect.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable core coating molding device for producing civil cables, comprising a mounting frame (1), an extrusion assembly (2) for extruding a coating material arranged on the inner side of the mounting frame (1), an extrusion barrel (3) arranged at the bottom of the extrusion barrel (2), a cable core passing through the inside of the extrusion barrel (3), and a cooling assembly (4) for cooling the coating material arranged on the left side of the mounting frame (1), characterized in that: The overmolding device also includes: A pretreatment component (5) is arranged on the right side of the mounting frame (1). The pretreatment component (5) is used to preheat the cable core and clean the surface. The pretreatment component (5) includes a frame (51) arranged on the right side of the mounting frame (1). A water spray frame (52) is arranged inside the frame (51). A cleaning frame (53) is arranged inside the water spray frame (52). Brush hairs are arranged inside the cleaning frame (53). A pipe (54) connected to the cooling component (4) is fixedly connected to the bottom of the water spray frame (52). The pipe (54) is used to input heat-absorbed water into the inside of the water spray frame (52). A nozzle (55) is arranged inside the pipe (54). A moving frame (56) is arranged on the left side of the cleaning frame (53). A spiral groove is opened on the surface of the moving frame (56). A fixed pipe (58) is arranged inside the left side of the frame (51). A guide slider (57) movable inside the spiral groove is arranged inside the fixed pipe (58). The right part of the water spray frame (52) is provided with a transmission assembly (6) for driving the water spray frame (52) to move.

2. A cable core overmolding device for producing civil cables according to claim 1, characterized in that: The cleaning frame (53) is provided with a sliding groove (10) at a position corresponding to the nozzle (55).

3. A cable core overmolding device for producing civil cables according to claim 1, characterized in that: The transmission assembly (6) comprises: The mounting box (61) is arranged on the mounting frame (1) and is located on the right side of the frame (51). The top and bottom ends of the inner side of the frame (51) are both rotatably connected to the extrusion wheel (62). The front and rear ends of the central axis of the extrusion wheel (62) at the bottom pass through the frame (51) and are fixedly connected to the disk (63). The eccentric part of the disk (63) is fixedly connected to the driving rod (64). The outer side of the driving rod (64) is provided with a moving frame (65). The left sides of the two moving frames (65) are fixedly connected to the connecting frame (66). A round rod (67) is fixedly connected between the connecting frame (66) and the frame (51). The round rod (67) slides inside the frame (51).

4. A cable core overmolding device for producing civil cables according to claim 3, characterized in that: The bottom of the frame (51) is provided with a drainage groove (59), and the motion frame (56) is provided with a through groove near the cleaning frame (53).

5. A cable core overmolding device for producing civil cables according to claim 4, characterized in that: A heating box (510) is provided in the middle portion of the pipeline (54), and a heating element for heating is installed inside the heating box (510).

6. A cable core covering molding device for producing civil cables according to claim 1, characterized in that: The overmolding device also includes: A wiper assembly (7) is arranged on the left side of the frame (51), and the wiper assembly (7) includes a sleeve rod (71) fixedly connected to the left side of the moving frame (56), a penetrating rod (72) is slidably connected to the left side of the sleeve rod (71), a circular ring (73) is fixedly connected to the left side of the penetrating rod (72), and a flexible scraper ring (74) is fixedly connected to the inner side of the circular ring (73); The wiper assembly (7) further comprises a limiting frame (75) fixedly connected to the top of the left side of the frame (51); the limiting frame (75) is provided with a limiting groove (76) near the circular ring (73); and the ring side of the circular ring (73) near the limiting groove (76) is located inside the limiting groove (76).

7. A cable core overmolding device for producing civil cables according to claim 6, characterized in that: The inner rotation of the limiting groove (76) is connected with a ball for reducing friction.

8. A cable core covering molding device for producing civil cables according to claim 7, characterized in that: The overmolding device also includes: The drying assembly (8) is arranged on the left side of the wiper assembly (7). The drying assembly (8) comprises a circular frame (81) fixedly connected to the inner side of the mounting frame (1). A drying frame (82) is arranged inside the circular frame (81). A wiping portion (85) is arranged inside the drying frame (82). A ventilation frame (83) is fixedly connected to the left side of the drying frame (82). A rotating tube (84) is fixedly connected to the inner side of the ventilation frame (83). A driving assembly (9) for driving the rotating tube (84) to rotate is arranged inside the mounting frame (1). A small tube (87) is fixedly connected to the right side of the ventilation frame (83). A spray cover (88) is fixedly connected to the right side of the small tube (87). A baffle (89) is rotatably connected to the right side of the ventilation frame (83).

9. A cable core covering molding device for producing civil cables according to claim 8, characterized in that: The cleaning staff (85) includes: Pulley (851), there are two pulleys (851), and the pulleys (851) rotate on both sides of the drying frame (82), the external transmission of the pulley (851) is connected with a transmission belt (852), the outer side of the transmission belt (852) is fixedly connected with a drying cotton (853), and an empty groove is opened inside the transmission belt (852).

10. A cable core overmolding device for producing civil cables according to claim 9, characterized in that: The drying assembly (8) further comprises: The ring cover (86) is arranged on the left side of the ventilation frame (83), and an air inlet pipe (810) is fixedly connected between the ring cover (86) and the baffle (89).

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