Cable insulation layer extrusion device and control method

Abstract

The invention relates to the technical field of cable production, and discloses a cable insulation layer extrusion device and a control method.The cable insulation layer extrusion device comprises a device body, a heating bin, a conveying pipe, a material bin and a driving mechanism, the heating bin is fixedly installed at the top of the device body, and the conveying pipe is fixedly installed in the heating bin; and one side of the conveying pipe is fixedly connected with the material bin, the driving mechanism is installed on the top of the device body, and a heating mechanism is installed on one side of the heating bin. In the moving process of a plastic solution, a separation handrail can separate impurities difficult to melt in the plastic solution, then a material scraper rotates to push the impurities in the plastic solution to be discharged from a material connecting cylinder, and after the impurities are discharged, a blocking clamping block can block the material connecting cylinder in time; therefore, the impurities in the plastic solution can be effectively prevented from leaving recesses and bulges on the surface of the insulating layer in the extrusion forming process of the insulating layer, so that the extrusion forming quality of the insulating layer can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, and in particular to a cable insulation layer extrusion device and a control method. Background Art

[0002] A cable is composed of several or several groups of mutually insulated conductors that are hinged together and then wrapped with an external insulating layer. Cables are usually used to transmit electrical energy or electrical signals from one end to another. In addition, cables have the characteristics of internal power conduction and external insulation.

[0003] Chinese patent CN107351343B discloses an extrusion device on a power cord preparation device. When hydraulic oil passes through a steel pipe, the impeller is driven to rotate, so that the extrusion screw extrude the hot-melt plastic slurry in the feed rod into the shell. The hot-melt plastic slurry adheres to the wire at the extrusion nozzle. Since the wire is in a rotating state, the insulation layer of the wire is uniform in thickness, and it can effectively prevent the plastic slurry from being unevenly thickened on the surface of the wire due to gravity.

[0004] In the above patents and prior art, the plastic particles must be melted first when the cable surface is extruded. When the plastic particles are melted, some impurities contained inside have a high melting point and cannot be melted. In the subsequent extrusion of the insulating layer, impurities will cause protrusions and depressions on the surface of the insulating layer. In addition, barium stearate will be produced when the plastic particles are melted. The barium stearate is easy to remain at the mold sleeve mouth when the insulating layer is extruded, causing scratches on the surface of the insulating layer. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cable insulation layer extrusion device and a control method.

[0006] A cable insulation layer extrusion device and control method, comprising a device body, a heating bin, a feed pipe, a material bin and a driving mechanism, wherein the heating bin is fixedly installed on the top of the device body, the feed pipe is fixedly installed inside the heating bin, one side of the feed pipe is fixedly connected to the material bin, the driving mechanism is installed on the top of the device body, a heating mechanism is installed on one side of the heating bin, a storage bin is fixedly connected to the top of the material bin, a separation mechanism is fixedly connected to one side of the feed pipe, and an extrusion mechanism is fixedly connected to one side of the separation mechanism; The driving mechanism comprises a transmission rotating rod, a first conveying spiral plate and a second conveying spiral plate, wherein the first conveying spiral plate and the second conveying spiral plate are fixedly mounted on the outside of the transmission rotating rod, one end of the transmission rotating rod is rotatably mounted on the device body, and the other end of the transmission rotating rod passes through the material bin and the material conveying pipe; One end of the feed pipe is connected to the interior of the material bin, the other end of the feed pipe is connected to the separation mechanism, and the interior of the material bin is connected to the interior of the storage bin; The plastic particles stored in the storage bin can fall into the material bin. When the transmission rotating rod drives the first conveying spiral plate and the second conveying spiral plate to rotate, the plastic particles can be driven to move from the inside of the material bin to the inside of the conveying pipe, and the plastic particles can be driven to move from the inside of the conveying pipe to the direction of the separation mechanism. The heating mechanism can heat the outside of the conveying pipe to melt the plastic particles inside. The molten plastic material enters the extrusion mechanism after passing through the separation mechanism. The cable that needs to undergo insulation layer extrusion passes through the extrusion mechanism and the insulation layer is extruded through the melted plastic.

[0007] Preferably, the driving mechanism comprises a driving motor and a transmission rotating rod, wherein the driving motor is fixedly mounted on the top of the device body, the transmission rotating rod is rotatably mounted on one side of the device body, the power end of the driving motor is fixedly connected to a motor roller, a transmission belt is mounted on the outside of the motor roller, a rotating rod roller is fixedly mounted on the outside of the transmission rotating rod, and a first conveying spiral plate, a stirring rod and a second conveying spiral plate are also fixedly mounted on the outside of the transmission rotating rod respectively; The transmission rotating rod is connected to the motor roller of the driving motor power end through the rotating rod roller and the transmission belt. When the driving motor rotates, it can drive the transmission rotating rod to rotate synchronously.

[0008] Preferably, the external mounting structure of the transmission rotating rod is composed of a rotating rod roller, a first conveying spiral plate, a stirring rod and a second conveying spiral plate in order from the material bin to the separation mechanism, and the outer diameters of the first conveying spiral plate and the second conveying spiral plate are the same as the inner diameters of the conveying pipe; The first conveying spiral plate and the second conveying spiral plate can drive the plastic particles to move when they rotate, and the stirring rod can stir the melted plastic particles in the conveying pipe when it rotates.

[0009] Preferably, the separation mechanism includes a separation body, one side of the separation body is fixedly connected to one side of the feed pipe, the other side of the separation body is provided with a discharge port, a separation railing is fixedly installed inside the separation body, a material scraper is fixedly installed outside the transmission rotating rod, a material connecting cylinder is fixedly installed inside the separation body, a block telescopic cylinder is opened inside the separation body, a block spring is fixedly installed inside the block telescopic cylinder, and a blocking block is fixedly connected to the movable end of the block spring.

[0010] Preferably, the separation railing is a frustum-shaped structure, the side of the separation railing is a hollow structure, the outside of the transmission rotating rod is in contact with the inner side of one end of the separation railing, one side of the material scraper is in contact with the separation railing, and the outside of the material scraper is in contact with the inside of the separation body; When the transmission rotating rod rotates, it can drive the material scraper to rotate, and when the material scraper rotates, it can push the impurities that cannot be melted into the interior of the material connecting cylinder.

[0011] Preferably, the blocking block is slidably mounted inside the block telescopic cylinder, one end of the blocking block is fixedly connected to the block spring, the other end of the blocking block is a circular structure, and the circular end of the blocking block is clamped with the inside of the material connecting cylinder; The interior of the separation body is connected to the exterior of the separation body through the material connecting cylinder, the sealing block can seal the top of the material connecting cylinder, and the material scraper can push impurities into the material connecting cylinder for discharge and the sealing block can be retracted toward the interior of the block telescopic cylinder through the circular structure outside the sealing block.

[0012] Preferably, the extrusion mechanism includes an extrusion body, one side of the extrusion body is fixedly connected to the separation body, a feed port is fixedly installed inside the extrusion body, a cable inlet is fixedly installed on one side of the extrusion body, a cable outlet is fixedly installed on the other side of the extrusion body, one end of the feed port is fixedly connected to an extrusion molding tube, a block connecting ring is rotatably installed on the outside of the extrusion molding tube, one side of the block connecting ring is fixedly connected to a cleaning scraper, a fixed block is fixedly installed on the outside of the block connecting ring, a movable block is rotatably installed on the outside of the fixed block, a push rod mounting seat is fixedly installed on the outside of the extrusion molding tube, a transmission push rod is slidably installed inside the push rod mounting seat, a push rod spring is fixedly installed on the outside of the extrusion body, the movable end of the push rod spring is fixedly connected to the push rod mounting seat, and a transmission turntable is rotatably installed inside the extrusion molding tube.

[0013] Preferably, the interior of the extruded tube is connected to the interior of the separation body through a feed port and a discharge port, and the cable to be extruded and insulated enters from the cable inlet, passes through the extruded tube, and then passes out from the cable outlet. When the cable passes through the interior of the extruded tube, it can drive the transmission turntable to rotate; The outside of the transmission push rod is connected to the push rod spring through the push rod spring, and the outside of the transmission turntable is a concave-convex structure. When the transmission turntable rotates, it can drive the transmission push rod to reciprocate.

[0014] Preferably, a plurality of fixed card blocks are fixedly installed on the outside of the card block connecting ring, and the plurality of fixed card blocks are equidistantly distributed in an annular shape on the outside of the card block connecting ring, and movable card blocks are rotatably installed on the outside of the plurality of fixed card blocks, and the outsides of the fixed card blocks and the movable card blocks are inclined structures; When the transmission push rod reciprocates, it can drive the block connecting ring to rotate as a whole by pushing the fixed block, and when the block connecting ring rotates, it can drive the cleaning scraper to rotate synchronously.

[0015] Compared with the prior art, the present invention provides a cable insulation layer extrusion device and control method, which have the following beneficial effects: 1. In this cable insulation layer extrusion device, the separation railing can separate the impurities that are difficult to melt in the plastic solution during the movement of the plastic solution, and then the material scraper rotates to push the impurities in the plastic solution to be discharged from the material connecting cylinder. After the impurities are discharged, the sealing block can timely seal the material connecting cylinder, thereby effectively preventing the impurities in the plastic solution from leaving depressions and protrusions on the surface of the insulation layer during the extrusion molding of the insulation layer, thereby improving the extrusion molding quality of the insulation layer.

[0016] 2. This type of cable insulation layer extrusion device is equipped with a stirring rod in the middle section for buffering when the first conveying spiral plate and the second conveying spiral plate convey the plastic particles and the plastic solution, which can not only make the plastic particles melt more fully, but also discharge them through accumulation and extrusion, thereby preventing residual air in the plastic solution from causing bubbles and holes in the subsequent insulation layer extrusion molding process.

[0017] 3. In this cable insulation layer extrusion device, when the insulation layer leaves the extruded tube, the barium stearate in the insulation layer will remain on the outside of the extruded tube, and the cable can drive the transmission turntable to rotate when it moves, and the transmission turntable can drive the transmission push rod to reciprocate when it rotates, and the transmission push rod can drive the cleaning scraper to clean the barium stearate in time when it reciprocates, thereby preventing the barium stearate from forming scratches on the surface of the insulation layer during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a cable insulation layer extrusion device of the present invention Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of a cable insulation layer extrusion device of the present invention Figure 2 ; Figure 3 It is a cross-sectional structural schematic diagram of a cable insulation layer extrusion device of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of a separation mechanism of a cable insulation layer extrusion device of the present invention; Figure 5It is a schematic diagram of the internal structure of a separation mechanism of a cable insulation layer extrusion device of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement at the center A; Figure 7 It is a three-dimensional structural schematic diagram of an extrusion mechanism of a cable insulation layer extrusion device of the present invention; Figure 8 It is a schematic diagram of the internal structure of an extrusion mechanism of a cable insulation layer extrusion device of the present invention; Fig. 9 For the present invention Figure 8 A schematic diagram of the structure enlarged at B in the middle; Fig.10 The present invention is a schematic cross-sectional view of an extruded tube of a cable insulation layer extrusion device.

[0019] In the figure: 1, device body; 2, heating bin; 3, heating mechanism; 4, feeding pipe; 5, material bin; 6, driving mechanism; 61, driving motor; 62, motor roller; 63, driving belt; 64, rotating rod roller; 65, driving rotating rod; 66, first conveying spiral plate; 67, stirring rod; 68, second conveying spiral plate; 7, separation mechanism; 71, separation body; 72, discharge port; 73, separation railing; 74, material scraper; 75, material Material connecting cylinder; 76, card block telescopic cylinder; 77, card block spring; 78, blocking card block; 8, extrusion mechanism; 81, extrusion body; 82, feed inlet; 83, cable inlet; 84, cable outlet; 85, extrusion forming tube; 86, card block connecting ring; 87, cleaning scraper; 88, fixed card block; 89, movable card block; 810, transmission push rod; 811, push rod spring; 812, push rod mounting seat; 813, transmission turntable; 9, storage bin. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a cable insulation layer extrusion device and a control method.

[0022] Embodiment 1: See also Figure 1 - Fig.10A cable insulation layer extrusion device comprises a device body 1, a heating bin 2, a feed pipe 4, a material bin 5 and a driving mechanism 6. The heating bin 2 is fixedly installed on the top of the device body 1, the feed pipe 4 is fixedly installed inside the heating bin 2, one side of the feed pipe 4 is fixedly connected to the material bin 5, the driving mechanism 6 is installed on the top of the device body 1, the heating mechanism 3 is installed on one side of the heating bin 2, the top of the material bin 5 is fixedly connected to a storage bin 9, one side of the feed pipe 4 is fixedly connected to a separation mechanism 7, and one side of the separation mechanism 7 is fixedly connected to an extrusion mechanism 8; The driving mechanism 6 includes a transmission rotating rod 65, a first conveying spiral plate 66 and a second conveying spiral plate 68. The first conveying spiral plate 66 and the second conveying spiral plate 68 are fixedly mounted on the outside of the transmission rotating rod 65. One end of the transmission rotating rod 65 is rotatably mounted on the device body 1, and the other end of the transmission rotating rod 65 passes through the material bin 5 and the conveying pipe 4. One end of the feed pipe 4 is connected to the interior of the material bin 5, the other end of the feed pipe 4 is connected to the separation mechanism 7, and the interior of the material bin 5 is connected to the interior of the storage bin 9; The plastic particles stored in the storage bin 9 can fall into the material bin 5. When the transmission rotating rod 65 drives the first conveying spiral plate 66 and the second conveying spiral plate 68 to rotate, it can drive the plastic particles to move from the inside of the material bin 5 to the inside of the conveying pipe 4, and drive the plastic particles to move from the inside of the conveying pipe 4 to the direction of the separation mechanism 7. The heating mechanism 3 can heat the outside of the conveying pipe 4 to melt the plastic particles inside. The molten plastic material enters the extrusion mechanism 8 after passing through the separation mechanism 7. The cable that needs to be extruded with an insulation layer passes through the extrusion mechanism 8 and the insulation layer is extruded through the melted plastic.

[0023] When the insulation layer outside the cable is extruded, the cable is first passed through the extrusion mechanism 8, and then the first conveying spiral plate 66 is driven by the transmission rotating rod 65 to rotate to convey the plastic particles inside the material bin 5 to the inside of the conveying pipe 4, and then the plastic particles inside the conveying pipe 4 are heated by the heating mechanism 3 to melt the plastic particles into a plastic solution. The plastic solution continues to move under the drive of the second conveying spiral plate 68. When the first conveying spiral plate 66 continues to convey the plastic particles, the second conveying spiral plate 68 also continues to convey the plastic solution to the inside of the separation mechanism 7. The melted plastic solution is moved to the inside of the separation mechanism 7 and accumulated and extruded. The cable is pressed, and during the extrusion process, the separation mechanism 7 can separate the impurities that are difficult to melt in the plastic solution and discharge them to the outside of the separation mechanism 7, and during the extrusion process, the plastic solution enters the extrusion mechanism 8, and the cable moves in the extrusion mechanism 8, driving the plastic solution to move, so that the plastic solution forms a layer of plastic insulation layer on the cable surface, and during the movement of the plastic solution, the separation mechanism 7 can separate and discharge the impurities that are difficult to melt in the plastic solution, thereby effectively preventing the impurities in the plastic solution from leaving depressions and protrusions on the surface of the insulation layer during the extrusion molding process of the insulation layer, thereby improving the extrusion molding quality of the insulation layer.

[0024] Embodiment 2: The difference from the above embodiment is that, please refer to Figure 1 - Figure 3 The driving mechanism 6 includes a driving motor 61 and a transmission rotating rod 65. The driving motor 61 is fixedly mounted on the top of the device body 1. The transmission rotating rod 65 is rotatably mounted on one side of the device body 1. The power end of the driving motor 61 is fixedly connected to a motor roller 62. A transmission belt 63 is mounted on the outside of the motor roller 62. A rotating rod roller 64 is fixedly mounted on the outside of the transmission rotating rod 65. A first conveying spiral plate 66, a stirring rod 67, and a second conveying spiral plate 68 are also fixedly mounted on the outside of the transmission rotating rod 65. The transmission rotating rod 65 is connected to the motor roller 62 of the power end of the driving motor 61 through the rotating rod roller 64 and the driving belt 63. When the driving motor 61 rotates, it can drive the transmission rotating rod 65 to rotate synchronously.

[0025] The external mounting structure of the transmission rotating rod 65 is composed of a rotating rod roller 64, a first conveying spiral plate 66, a stirring rod 67 and a second conveying spiral plate 68 in the direction from the material bin 5 to the separation mechanism 7. The outer diameters of the first conveying spiral plate 66 and the second conveying spiral plate 68 are the same as the inner diameters of the conveying pipe 4. The first conveying spiral plate 66 and the second conveying spiral plate 68 can drive the plastic particles to move when they rotate, and the stirring rod 67 can stir the melted plastic particles inside the conveying pipe 4 when it rotates.

[0026] When the driving motor 61 rotates, the transmission rotating rod 65 can be driven to rotate through the transmission belt 63. When the transmission rotating rod 65 rotates, the first conveying spiral plate 66, the stirring rod 67 and the second conveying spiral plate 68 can be driven to rotate synchronously. When the first conveying spiral plate 66 rotates, the plastic particles can be moved to the location of the stirring rod 67. When the stirring rod 67 rotates, the plastic particles can be heated more evenly and melted more thoroughly. When the first conveying spiral plate 66 continues to rotate, the plastic particles can be accumulated at the stirring rod 67. When the plastic solution accumulates to a certain amount at the stirring rod 67, the plastic particles can be melted more thoroughly. The solution overflows to the second conveying spiral plate 68, and when the second conveying spiral plate 68 rotates, the plastic solution can be conveyed to the separation mechanism 7. After the plastic solution accumulates to a certain amount inside the separation mechanism 7, it is squeezed into the extrusion mechanism 8. When the first conveying spiral plate 66 and the second conveying spiral plate 68 convey the plastic particles and the plastic solution, a stirring rod 67 is provided in the middle section for buffering, which can not only make the plastic particles melt more fully, but also can be discharged through accumulation and extrusion, thereby preventing residual air in the plastic solution from causing bubbles and holes in the subsequent insulation layer extrusion molding process.

[0027] Embodiment three: The difference from the above embodiment is that, please refer to Figure 4 - Figure 6 The separation mechanism 7 includes a separation body 71, one side of the separation body 71 is fixedly connected to one side of the feed pipe 4, and the other side of the separation body 71 is provided with a discharge port 72. A separation railing 73 is fixedly installed inside the separation body 71, a material scraper 74 is fixedly installed outside the transmission rotating rod 65, a material connecting cylinder 75 is fixedly installed inside the separation body 71, a block telescopic cylinder 76 is opened inside the separation body 71, a block spring 77 is fixedly installed inside the block telescopic cylinder 76, and a blocking block 78 is fixedly connected to the movable end of the block spring 77.

[0028] The separation railing 73 is a frustum-shaped structure, and the side of the separation railing 73 is a hollow structure. The outside of the transmission rotating rod 65 is in contact with the inside of one end of the separation railing 73, one side of the material scraper 74 is in contact with the separation railing 73, and the outside of the material scraper 74 is in contact with the inside of the separation body 71. When the transmission rotating rod 65 rotates, it can drive the material scraper 74 to rotate. When the material scraper 74 rotates, it can push the impurities that cannot be melted into the interior of the material connecting tube 75.

[0029] The blocking block 78 is slidably mounted inside the block telescopic cylinder 76. One end of the blocking block 78 is fixedly connected to the block spring 77. The other end of the blocking block 78 is a circular structure. The circular end of the blocking block 78 is clamped inside the material connecting cylinder 75. The interior of the separation body 71 is connected to the exterior of the separation body 71 through the material connecting tube 75. The sealing block 78 can seal the top of the material connecting tube 75. The material scraper 74 pushes impurities into the material connecting tube 75 for discharge, and the sealing block 78 can be retracted toward the interior of the block telescopic tube 76 through the circular structure outside the sealing block 78.

[0030] After the plastic solution enters the separation body 71, the plastic solution enters the extrusion mechanism 8 from the discharge port 72 through extrusion. During the movement of the plastic solution, it must be filtered through the separation railing 73 before it can be discharged. The impurities in the plastic solution that are difficult to melt remain outside the separation railing 73 and move toward the edge of the separation body 71 under the restriction of the conical structure of the separation railing 73. When the impurities in the plastic solution move to the material scraper 74, the impurities in the plastic solution are discharged from the material connecting cylinder 75 to the outside of the separation body 71 under the drive of the transmission rotating rod 65. When impurities in the plastic solution are discharged from the material connecting tube 75, the block spring 77 can be squeezed to shrink the blocking block 78 toward the inside of the block telescopic tube 76. After the impurities in the plastic solution are discharged, the block spring 77 rebounds to drive the blocking block 78 to seal the material connecting tube 75 to prevent the impurities inside the material connecting tube 75 from drying and blocking the material connecting tube 75. When the plastic solution passes through the separation railing 73, the impurities therein can be filtered and discharged, thereby preventing the insulating layer from being extruded and containing impurities, causing the insulating layer to be concave or convex.

[0031] Embodiment 4: The difference from the above embodiment is that, please refer to Figure 7 - Fig.10 The extrusion mechanism 8 includes an extrusion body 81, one side of the extrusion body 81 is fixedly connected to the separation body 71, a feed port 82 is fixedly installed inside the extrusion body 81, a cable inlet 83 is fixedly installed on one side of the extrusion body 81, and a cable outlet 84 is fixedly installed on the other side of the extrusion body 81. An extrusion forming tube 85 is fixedly connected to one end of the feed port 82, a card block connecting ring 86 is rotatably installed outside the extrusion forming tube 85, one side of the card block connecting ring 86 is fixedly connected to a cleaning scraper 87, a fixed card block 88 is fixedly installed outside the card block connecting ring 86, and a movable card block 89 is rotatably installed outside the fixed card block 88, a push rod mounting seat 812 is fixedly installed outside the extrusion forming tube 85, a transmission push rod 810 is slidably installed inside the push rod mounting seat 812, a push rod spring 811 is fixedly installed outside the extrusion body 81, the movable end of the push rod spring 811 is fixedly connected to the push rod mounting seat 812, and a transmission turntable 813 is rotatably installed inside the extrusion forming tube 85.

[0032] The interior of the extrusion tube 85 is connected to the interior of the separation body 71 through the feed port 82 and the discharge port 72. The cable to be extruded and insulated enters from the cable inlet 83, passes through the extrusion tube 85, and then passes out from the cable outlet 84. When the cable passes through the extrusion tube 85, it can drive the transmission turntable 813 to rotate. The outside of the transmission push rod 810 is connected to the push rod spring 811 through the push rod spring 811, and the outside of the transmission turntable 813 is a concave-convex structure. When the transmission turntable 813 rotates, it can drive the transmission push rod 810 to reciprocate.

[0033] A plurality of fixed blocks 88 are fixedly installed on the outside of the block connection ring 86. The plurality of fixed blocks 88 are equidistantly distributed in an annular shape on the outside of the block connection ring 86. A movable block 89 is rotatably installed on the outside of the plurality of fixed blocks 88. The outsides of the fixed blocks 88 and the movable blocks 89 are both inclined structures. When the transmission push rod 810 reciprocates, it can drive the block connecting ring 86 to rotate as a whole by pushing the fixed block 88. When the block connecting ring 86 rotates, it can drive the cleaning scraper 87 to rotate synchronously.

[0034] After the plastic solution enters the feed port 82 from the separation mechanism 7, the cable starts to move inside 085. When the cable moves, it can drive the transmission turntable 813 to rotate. When the transmission turntable 813 rotates, it can drive the transmission push rod 810 to move through the external concave-convex structure. When the transmission push rod 810 moves, the push rod spring 811 can be compressed. When the transmission push rod 810 is no longer in contact with the transmission turntable 813, the push rod spring 811 rebounds and drives the transmission push rod 810 to move, so that when the transmission turntable 813 rotates, the transmission push rod 810 can be driven to reciprocate. When the transmission push rod 810 reciprocates, it can drive the block connecting ring 86 to rotate by squeezing the fixed block 88. During the pushing and squeezing process of the transmission push rod 810, the movable block 89 can be caused to have a certain movement. When the transmission push rod 810 is retracted, the movable block 89 rotates under the action of gravity. When the transmission push rod 810 is pushed again, it first contacts the movable block 89 and then contacts the fixed block 88. When the transmission push rod 810 moves back and forth, it drives the block connecting ring 86 to rotate. When the block connecting ring 86 rotates, it can drive the cleaning scraper 87 to clean the outside of the extruded tube 85. When the cable moves inside the extrusion mechanism 8, it can drive the plastic solution to move to form an insulating layer on the surface of the cable. When the insulating layer leaves the extruded tube 85, the barium stearate in the insulating layer will remain on the outside of the extruded tube 85, and the cleaning scraper 87 can clean the barium stearate in time, thereby preventing the barium stearate from forming scratches on the surface of the insulating layer during the production process.

[0035] Embodiment five: A cable insulation layer extrusion device and control method, using a cable insulation layer extrusion device as described in Example 1, comprises the following steps: At the beginning of the process, the cable to be extruded with insulation is first passed through the extrusion mechanism 8; Then, the driving mechanism 6 is started to drive the plastic particles into the feeding pipe 4 and the heating mechanism 3 is used to heat and melt the plastic particles in the feeding pipe 4. The plastic solution passes through the separation mechanism 7 to separate the impurities inside and then enters the extrusion mechanism 8; After the plastic solution enters the extrusion mechanism 8, the external mechanism is started to drive the cable to move inside the extrusion mechanism 8, and the moving speed of the cable is 0.5m / s; When the cable moves inside the extrusion mechanism 8, the plastic solution passes through the cable, so that an insulating layer is formed on the surface of the cable.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable insulation layer extrusion device, comprising a device body, a heating bin, a feed pipe, a material bin and a driving mechanism, wherein the heating bin is fixedly installed on the top of the device body, the feed pipe is fixedly installed inside the heating bin, one side of the feed pipe is fixedly connected to the material bin, and the driving mechanism is installed on the top of the device body, characterized in that: A heating mechanism is installed on one side of the heating bin, a material storage bin is fixedly connected to the top of the material bin, a separation mechanism is fixedly connected to one side of the feed pipe, and an extrusion mechanism is fixedly connected to one side of the separation mechanism; The driving mechanism comprises a transmission rotating rod, a first conveying spiral plate and a second conveying spiral plate, wherein the first conveying spiral plate and the second conveying spiral plate are fixedly mounted on the outside of the transmission rotating rod, one end of the transmission rotating rod is rotatably mounted on the device body, and the other end of the transmission rotating rod passes through the material bin and the material conveying pipe; One end of the feed pipe is connected to the interior of the material bin, the other end of the feed pipe is connected to the separation mechanism, and the interior of the material bin is connected to the interior of the storage bin; The plastic particles stored in the storage bin can fall into the material bin. When the transmission rotating rod drives the first conveying spiral plate and the second conveying spiral plate to rotate, the plastic particles can be driven to move from the inside of the material bin to the inside of the conveying pipe, and the plastic particles can be driven to move from the inside of the conveying pipe to the direction of the separation mechanism. The heating mechanism can heat the outside of the conveying pipe to melt the plastic particles inside. The molten plastic material enters the extrusion mechanism after passing through the separation mechanism. The cable that needs to undergo insulation layer extrusion passes through the extrusion mechanism and the insulation layer is extruded through the melted plastic.

2. A cable insulation layer extrusion device according to claim 1, characterized in that: The driving mechanism comprises a driving motor and a transmission rotating rod, wherein the driving motor is fixedly mounted on the top of the device body, the transmission rotating rod is rotatably mounted on one side of the device body, the power end of the driving motor is fixedly connected to a motor roller, a transmission belt is mounted on the outside of the motor roller, a rotating rod roller is fixedly mounted on the outside of the transmission rotating rod, and a first conveying spiral plate, a stirring rod and a second conveying spiral plate are also fixedly mounted on the outside of the transmission rotating rod; The transmission rotating rod is connected to the motor roller of the driving motor power end through the rotating rod roller and the transmission belt. When the driving motor rotates, it can drive the transmission rotating rod to rotate synchronously.

3. A cable insulation layer extrusion device according to claim 2, characterized in that: The external mounting structure of the transmission rotating rod is composed of a rotating rod roller, a first conveying spiral plate, a stirring rod and a second conveying spiral plate in order from the material bin to the separation mechanism. The outer diameters of the first conveying spiral plate and the second conveying spiral plate are the same as the inner diameters of the conveying pipe. The first conveying spiral plate and the second conveying spiral plate can drive the plastic particles to move when they rotate, and the stirring rod can stir the melted plastic particles in the conveying pipe when it rotates.

4. A cable insulation layer extrusion device according to claim 1, characterized in that: The separation mechanism includes a separation body, one side of the separation body is fixedly connected to one side of the material conveying pipe, the other side of the separation body is provided with a discharge port, a separation railing is fixedly installed inside the separation body, a material scraper is fixedly installed outside the transmission rotating rod, a material connecting cylinder is fixedly installed inside the separation body, a block telescopic cylinder is opened inside the separation body, a block spring is fixedly installed inside the block telescopic cylinder, and a blocking block is fixedly connected to the movable end of the block spring.

5. A cable insulation layer extrusion device according to claim 4, characterized in that: The separation railing is a frustum-shaped structure, the side of the separation railing is a hollow structure, the outside of the transmission rotating rod is in contact with the inner side of one end of the separation railing, one side of the material scraper is in contact with the separation railing, and the outside of the material scraper is in contact with the inside of the separation body; When the transmission rotating rod rotates, it can drive the material scraper to rotate, and when the material scraper rotates, it can push the impurities that cannot be melted into the interior of the material connecting cylinder.

6. A cable insulation layer extrusion device according to claim 5, characterized in that: The blocking block is slidably mounted inside the block telescopic cylinder, one end of the blocking block is fixedly connected to the block spring, the other end of the blocking block is a circular structure, and the circular end of the blocking block is clamped inside the material connecting cylinder; The interior of the separation body is connected to the exterior of the separation body through the material connecting cylinder, the sealing block can seal the top of the material connecting cylinder, and the material scraper can push impurities into the material connecting cylinder for discharge and the sealing block can be retracted toward the interior of the block telescopic cylinder through the circular structure outside the sealing block.

7. A cable insulation layer extrusion device according to claim 1, characterized in that: The extrusion mechanism includes an extrusion body, one side of the extrusion body is fixedly connected to the separation body, a feed port is fixedly installed inside the extrusion body, a cable inlet is fixedly installed on one side of the extrusion body, and a cable outlet is fixedly installed on the other side of the extrusion body, one end of the feed port is fixedly connected to an extrusion molding tube, a block connecting ring is rotatably installed on the outside of the extrusion molding tube, one side of the block connecting ring is fixedly connected to a cleaning scraper, a fixed block is fixedly installed on the outside of the block connecting ring, a movable block is rotatably installed on the outside of the fixed block, a push rod mounting seat is fixedly installed on the outside of the extrusion molding tube, a transmission push rod is slidably installed inside the push rod mounting seat, a push rod spring is fixedly installed on the outside of the extrusion body, the movable end of the push rod spring is fixedly connected to the push rod mounting seat, and a transmission turntable is rotatably installed inside the extrusion molding tube.

8. A cable insulation layer extrusion device according to claim 7, characterized in that: The interior of the extruded tube is connected to the interior of the separation body through the feed port and the discharge port. The cable to be insulated by extrusion enters from the cable inlet, passes through the extruded tube, and then passes out from the cable outlet. When the cable passes through the extruded tube, it can drive the transmission turntable to rotate. The outside of the transmission push rod is connected to the push rod spring through the push rod spring, and the outside of the transmission turntable is a concave-convex structure. When the transmission turntable rotates, it can drive the transmission push rod to reciprocate.

9. A cable insulation layer extrusion device according to claim 8, characterized in that: A plurality of fixed card blocks are fixedly installed on the outside of the card block connection ring, and the plurality of fixed card blocks are equidistantly distributed in an annular shape on the outside of the card block connection ring. A movable card block is rotatably installed on the outside of the plurality of fixed card blocks, and the outsides of the fixed card blocks and the movable card blocks are both inclined structures; When the transmission push rod reciprocates, it can drive the block connecting ring to rotate as a whole by pushing the fixed block, and when the block connecting ring rotates, it can drive the cleaning scraper to rotate synchronously.

10. A cable insulation layer extrusion device and a control method, using the cable insulation layer extrusion device as claimed in any one of claims 1 to 9.

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