A cable insulation layer extrusion device and control method

Abstract

The present invention relates to the technical field of cable production, and discloses an extrusion device and a control method for a cable insulating layer, including a device main body, a heating bin, a feeding pipe, a material bin and a driving mechanism. The heating bin is fixedly installed at the top of the device main body, the feeding pipe is fixedly installed inside the heating bin, the material bin is fixedly connected to one side of the feeding pipe, the driving mechanism is installed on the top of the device main body, and a heating mechanism is installed on one side of the heating bin. In the present invention, during the movement of the plastic solution, the separation rail can separate the impurities that are difficult to dissolve in the plastic solution, and then the material scraper rotates to push the impurities in the plastic solution out from the material connection cylinder. After the impurities are discharged, the blocking block can timely block the material connection cylinder, so as to effectively prevent the impurities in the plastic solution from leaving depressions and protrusions on the surface of the insulating layer during the extrusion molding process of the insulating layer, thereby improving the extrusion molding quality of the insulating layer.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, and particularly to an extrusion device and a control method for a cable insulating layer. Background Art

[0002] A cable is composed of several or several groups of mutually insulated conductors that are hinged to each other and then wrapped by an external insulating layer. Cables are usually used to transmit electrical energy or electrical signals from one end to the other. In addition, cables also have the characteristics of being energized internally and insulated externally.

[0003] Chinese Patent CN107351343B discloses an extrusion device on a power cord preparation device. When hydraulic oil passes through a steel pipe, an impeller is driven to rotate, so that an extrusion screw extrudes the melted plastic slurry into a shell within a feeding rod. The melted plastic slurry adheres to a wire at an extrusion nozzle. Since the wire is in a rotating state, the thickness of the insulating layer of the obtained wire is uniform, and it can effectively prevent the wire surface thickness from being uneven due to the gravity of the plastic slurry.

[0004] In the above patent and the prior art, when extruding and forming the surface of a cable, the plastic particles need to be melted first. However, some impurities contained inside the plastic particles have a relatively high melting point and cannot be melted. And during the subsequent extrusion of the insulating layer, protrusions and depressions of impurities will appear on the surface of the insulating layer. Moreover, barium stearate will be generated when the plastic particles are melted, and barium stearate is likely to remain at the die sleeve opening during the extrusion forming of the insulating layer, scratching the surface of the insulating layer. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an extrusion device and a control method for a cable insulating layer.

[0006] An extrusion device and a control method for a cable insulating layer include a device main body, a heating bin, a feeding pipe, a material bin, and a driving mechanism. The heating bin is fixedly installed at the top of the device main body, the feeding pipe is fixedly installed inside the heating bin, the material bin is fixedly connected to one side of the feeding pipe, the driving mechanism is installed at the top of the device main 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 feeding pipe, and an extrusion mechanism is fixedly connected to one side of the separation mechanism;

[0007] The driving mechanism includes a transmission rotating rod, a first conveying spiral plate, and a second conveying spiral plate. The first conveying spiral plate and the second conveying spiral plate are fixedly installed outside the transmission rotating rod. One end of the transmission rotating rod is rotatably installed on the device main body, and the other end of the transmission rotating rod passes through the material bin and the feeding pipe;

[0008] One end of the material conveying pipe is communicated with the inside of the material bin, the other end of the material conveying pipe is communicated with the separation mechanism, and the inside of the material bin is communicated with the inside of the storage bin;

[0009] The plastic particles stored inside the storage bin can fall into the inside of the material bin. When the driving rotating rod drives the first conveying spiral plate and the second conveying spiral plate to rotate, it can drive the plastic particles to move from the inside of the material bin to the inside of the material conveying pipe, and drive the plastic particles to move from the inside of the material conveying pipe towards the separation mechanism. The heating mechanism can heat the outside of the material conveying pipe to melt the plastic particles inside. The melted plastic material enters the inside of the extrusion mechanism after passing through the separation mechanism. The cable that needs to be extruded with an insulating layer passes through the extrusion mechanism and is extruded with an insulating layer through the melted plastic.

[0010] Preferably, the driving mechanism includes a driving motor and a driving rotating rod. The driving motor is fixedly installed on the top of the device main body. The driving rotating rod is rotatably installed on one side of the device main body. A motor roller is fixedly connected to the power end of the driving motor. A transmission belt is installed outside the motor roller. A rotating rod roller is fixedly installed outside the driving rotating rod. The first conveying spiral plate, a stirring rod, and the second conveying spiral plate are respectively and fixedly installed outside the driving rotating rod;

[0011] The driving rotating rod is in transmission connection with the motor roller at the power end of the driving motor through the rotating rod roller and the transmission belt. When the driving motor rotates, it can drive the driving rotating rod to rotate synchronously.

[0012] Preferably, the installation structure outside the driving rotating rod from the material bin to the separation mechanism direction is successively a rotating rod roller, a first conveying spiral plate, a stirring rod, and a second conveying spiral plate. The outer diameters of the first conveying spiral plate and the second conveying spiral plate are the same as the inner diameter of the material conveying pipe;

[0013] When the first conveying spiral plate and the second conveying spiral plate rotate, they can drive the plastic particles to move. When the stirring rod rotates, it can stir the melted plastic particles inside the material conveying pipe.

[0014] Preferably, the separation mechanism includes a separation main body. One side of the separation main body is fixedly connected to one side of the material conveying pipe. An outlet is opened on the other side of the separation main body. A separation railing is fixedly installed inside the separation main body. A material scraping plate is fixedly installed outside the driving rotating rod. A material connecting cylinder is fixedly installed inside the separation main body. A clamping block telescopic cylinder is opened inside the separation main body. A clamping block spring is fixedly installed inside the clamping block telescopic cylinder. A sealing clamping block is fixedly connected to the movable end of the clamping block spring.

[0015] Preferably, the separation railing is of a frustum - shaped structure, the side surface of the separation railing is of a hollowed - out structure, the outside of the transmission rotating rod is fitted with the inner side of one end of the separation railing, one side of the material scraper is fitted with the separation railing, and the outside of the material scraper is fitted with the inside of the separation main body;

[0016] 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 material connection cylinder.

[0017] Preferably, the plugging block is slidably installed inside the block telescopic cylinder, one end of the plugging block is fixedly connected to the block spring, the other end of the plugging block is of a circular structure, and the circular end of the plugging block is clamped with the inside of the material connection cylinder;

[0018] The inside of the separation main body is communicated with the outside of the separation main body through the material connection cylinder. The plugging block can seal the top of the material connection cylinder. When the material scraper pushes the impurities into the material connection cylinder for discharge, the circular structure outside the plugging block can cause the plugging block to contract into the block telescopic cylinder.

[0019] Preferably, the extrusion mechanism includes an extrusion main body. One side of the extrusion main body is fixedly connected to the separation main body. An inlet is fixedly installed inside the extrusion main body. A cable inlet is fixedly installed on one side of the extrusion main body. A cable outlet is fixedly installed on the other side of the extrusion main body. One end of the inlet is fixedly connected to an extrusion forming tube. A block connection ring is rotatably installed outside the extrusion forming tube. A cleaning scraper is fixedly connected to one side of the block connection ring. Fixed blocks are fixedly installed outside the block connection ring. Movable blocks are rotatably installed outside the fixed blocks. A push rod mounting seat is fixedly installed outside the extrusion forming tube. A transmission push rod is slidably installed inside the push rod mounting seat. A push rod spring is fixedly installed outside the extrusion main body. The movable end of the push rod spring is fixedly connected to the push rod mounting seat. A transmission turntable is rotatably installed inside the extrusion forming tube.

[0020] Preferably, the inside of the extrusion forming tube is communicated with the inside of the separation main body through the inlet and the outlet. The cable that needs to be extruded for insulation enters from the cable inlet, then passes through the extrusion forming tube and exits from the cable outlet. When the cable passes through the inside of the extrusion forming tube, it can drive the transmission turntable to rotate;

[0021] The outside of the transmission push rod is connected to the push rod spring through the push rod spring. The outside of the transmission turntable is of a concave - convex structure. When the transmission turntable rotates, it can drive the transmission push rod to reciprocate.

[0022] Preferably, a plurality of fixed clamping blocks are fixedly installed on the outside of the clamping block connecting ring. The plurality of fixed clamping blocks are annularly and equidistantly distributed on the outside of the clamping block connecting ring. Movable clamping blocks are rotatably installed on the outside of each of the plurality of fixed clamping blocks. The outside of both the fixed clamping blocks and the movable clamping blocks is of an inclined structure;

[0023] When the transmission push rod reciprocates, it can drive the overall rotation of the clamping block connecting ring by pushing the fixed clamping block. When the clamping block connecting ring rotates, it can drive the cleaning scraper to rotate synchronously.

[0024] Compared with the prior art, the present invention provides a cable insulation layer extrusion device and a control method, which have the following beneficial effects:

[0025] 1. For this cable insulation layer extrusion device, during the movement of the plastic solution, the separation railing can separate the impurities that are difficult to dissolve in the plastic solution, and then the material scraper rotates to push the impurities in the plastic solution out of the material connecting cylinder. After the impurities are discharged, the blocking clamping block can timely block 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 process of the insulation layer, and thus improving the extrusion molding quality of the insulation layer.

[0026] 2. For this cable insulation layer extrusion device, when the first conveying spiral plate and the second conveying spiral plate convey plastic particles and plastic solution, a stirring rod is arranged in the middle for buffering, which can not only make the melting of the plastic particles more sufficient, but also discharge them through stacking and extrusion, thereby preventing air from remaining in the plastic solution and causing air bubbles and holes during the subsequent extrusion molding process of the insulation layer.

[0027] 3. For this cable insulation layer extrusion device, when the insulation layer leaves the extrusion molding tube, barium stearate in the insulation layer will remain outside the extrusion molding tube. When the cable moves, it can drive the transmission turntable to rotate. When the transmission turntable rotates, it can drive the transmission push rod to reciprocate. When the transmission push rod reciprocates, it can drive the cleaning scraper to timely clean the barium stearate, thereby preventing barium stearate from forming scratches on the surface of the insulation layer during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic three-dimensional structure diagram of a cable insulation layer extrusion device of the present invention Figure 1 ;

[0029] Figure 2 is a schematic three-dimensional structure diagram of a cable insulation layer extrusion device of the present invention Figure 2 ;

[0030] Figure 3 is a schematic cross-sectional structure diagram of a cable insulation layer extrusion device of the present invention;

[0031] Figure 4 Schematic three-dimensional structure diagram of the separation mechanism of an extrusion device for a cable insulation layer according to the present invention;

[0032] Figure 5 Schematic internal structure diagram of the separation mechanism of an extrusion device for a cable insulation layer according to the present invention;

[0033] Figure 6 According to the present invention Figure 5 Schematic enlarged structure diagram of part A in the present invention;

[0034] Figure 7 Schematic three-dimensional structure diagram of the extrusion mechanism of an extrusion device for a cable insulation layer according to the present invention;

[0035] Figure 8 Schematic internal structure diagram of the extrusion mechanism of an extrusion device for a cable insulation layer according to the present invention;

[0036] Figure 9 According to the present invention Figure 8 Schematic enlarged structure diagram of part B in the present invention;

[0037] Figure 10 Schematic cross-sectional structure diagram of the extrusion forming tube of an extrusion device for a cable insulation layer according to the present invention.

[0038] In the figure: 1, device main body; 2, heating chamber; 3, heating mechanism; 4, feeding pipe; 5, material bin; 6, driving mechanism; 61, driving motor; 62, motor roller; 63, transmission belt; 64, rotating rod roller; 65, transmission rotating rod; 66, first conveying spiral plate; 67, stirring rod; 68, second conveying spiral plate; 7, separation mechanism; 71, separation main body; 72, discharge port; 73, separation railing; 74, material scraper; 75, material connecting cylinder; 76, block telescopic cylinder; 77, block spring; 78, sealing block; 8, extrusion mechanism; 81, extrusion main body; 82, feeding port; 83, cable inlet; 84, cable outlet; 85, extrusion forming tube; 86, block connecting ring; 87, cleaning scraper; 88, fixed block; 89, movable block; 810, transmission push rod; 811, push rod spring; 812, push rod mounting seat; 813, transmission turntable; 9, storage bin. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a cable insulation layer extrusion device and a control method.

[0041] Embodiment 1:

[0042] Please refer to Figure 1 - Figure 10 , a cable insulation layer extrusion device, including a device main body 1, a heating bin 2, a feeding pipe 4, a material bin 5 and a driving mechanism 6. The heating bin 2 is fixedly installed on the top of the device main body 1. A feeding pipe 4 is fixedly installed inside the heating bin 2. A material bin 5 is fixedly connected to one side of the feeding pipe 4. A driving mechanism 6 is installed on the top of the device main body 1. A heating mechanism 3 is installed on one side of the heating bin 2. A storage bin 9 is fixedly connected to the top of the material bin 5. A separation mechanism 7 is fixedly connected to one side of the feeding pipe 4. An extrusion mechanism 8 is fixedly connected to one side of the separation mechanism 7;

[0043] 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 installed on the outside of the transmission rotating rod 65. One end of the transmission rotating rod 65 is rotatably installed on the device main body 1. The other end of the transmission rotating rod 65 passes through the material bin 5 and the feeding pipe 4;

[0044] One end of the feeding pipe 4 is communicated with the inside of the material bin 5, and the other end of the feeding pipe 4 is communicated with the separation mechanism 7. The inside of the material bin 5 is communicated with the inside of the storage bin 9;

[0045] The plastic particles stored inside the storage bin 9 can fall into the inside of 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 feeding pipe 4, and drive the plastic particles to move from the inside of the feeding pipe 4 towards the separation mechanism 7. The heating mechanism 3 can heat the outside of the feeding pipe 4 to melt the plastic particles inside. The melted plastic material enters the inside of 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 is extruded with an insulation layer through the melted plastic.

[0046] When extruding and forming the insulating layer outside the cable, first pass the cable through the extrusion mechanism 8, then drive the first conveying screw plate 66 to rotate through the transmission rotating rod 65 to convey the plastic particles inside the material bin 5 into the inside of the feeding pipe 4, and then heat the plastic particles inside the feeding pipe 4 through the heating mechanism 3 to melt the plastic particles into a plastic solution. The plastic solution continues to move driven by the second conveying screw plate 68. When the first conveying screw plate 66 continues to convey the plastic particles, the second conveying screw plate 68 also continues to convey the plastic solution into the separation mechanism 7. The melted plastic solution accumulates and is extruded inside the separation mechanism 7, and during the extrusion process, the separation mechanism 7 can separate the impurities that are not easily melted in the plastic solution and discharge them outside the separation mechanism 7. And during the extrusion process, the plastic solution enters the extrusion mechanism 8. When the cable moves inside the extrusion mechanism 8, it drives the plastic solution to move, so that a plastic insulating layer is formed on the surface of the cable. 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 insulating layer during the extrusion and forming process of the insulating layer, and thus improving the extrusion and forming quality of the insulating layer.

[0047] Embodiment 2:

[0048] 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 installed on the top of the device main body 1, the transmission rotating rod 65 is rotatably installed on one side of the device main body 1, a motor roller 62 is fixedly connected to the power end of the driving motor 61, a transmission belt 63 is installed outside the motor roller 62, a rotating rod roller 64 is fixedly installed outside the transmission rotating rod 65, and a first conveying screw plate 66, a stirring rod 67 and a second conveying screw plate 68 are respectively fixedly installed outside the transmission rotating rod 65;

[0049] The transmission rotating rod 65 is in transmission connection with the motor roller 62 at the power end of the driving motor 61 through the rotating rod roller 64 and the transmission belt 63. When the driving motor 61 rotates, it can drive the transmission rotating rod 65 to rotate synchronously.

[0050] The external installation structure of the transmission rotating rod 65 from the material bin 5 to the separation mechanism 7 is successively the rotating rod roller 64, the first conveying screw plate 66, the stirring rod 67 and the second conveying screw plate 68. The outer diameters of the first conveying screw plate 66 and the second conveying screw plate 68 are the same as the inner diameter of the feeding pipe 4;

[0051] When the first conveying screw plate 66 and the second conveying screw plate 68 rotate, they can drive the plastic particles to move. When the stirring rod 67 rotates, it can stir the melted plastic particles inside the feeding pipe 4.

[0052] When the driving motor 61 rotates, it can drive the transmission rotating rod 65 to rotate through the transmission belt 63. When the transmission rotating rod 65 rotates, it can drive the first conveying spiral plate 66, the stirring rod 67 and the second conveying spiral plate 68 to rotate synchronously. When the first conveying spiral plate 66 rotates, it can move the plastic particles to the position where the stirring rod 67 is located. When the stirring rod 67 rotates, it can make the plastic particles heat more evenly and melt more thoroughly. When the first conveying spiral plate 66 continues to rotate, it can cause the plastic particles to accumulate at the stirring rod 67. When the plastic solution accumulates to a certain amount at the stirring rod 67, the plastic solution can overflow to the second conveying spiral plate 68. When the second conveying spiral plate 68 rotates, it can convey the plastic solution into 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 arranged in the middle for buffering, which can not only make the melting of the plastic particles more sufficient, but also discharge through stacking and extrusion, thereby preventing air residues in the plastic solution from causing bubbles and holes during the subsequent extrusion molding process of the insulating layer.

[0053] Embodiment Three:

[0054] The difference from the above embodiment is as follows. Please refer to Figure 4 - Figure 6 The separation mechanism 7 includes a separation main body 71. One side of the separation main body 71 is fixedly connected to one side of the material conveying pipe 4. The other side of the separation main body 71 is provided with a discharge port 72. A separation railing 73 is fixedly installed inside the separation main body 71. A material scraping plate 74 is fixedly installed on the outside of the transmission rotating rod 65. A material connecting cylinder 75 is fixedly installed inside the separation main body 71. A clamping block expansion cylinder 76 is provided inside the separation main body 71. A clamping block spring 77 is fixedly installed inside the clamping block expansion cylinder 76. The movable end of the clamping block spring 77 is fixedly connected to a blocking clamping block 78.

[0055] The separation railing 73 is of a frustum-shaped structure. The side surface of the separation railing 73 is of a hollow structure. The outside of the transmission rotating rod 65 fits with the inner side of one end of the separation railing 73. One side of the material scraping plate 74 fits with the separation railing 73. The outside of the material scraping plate 74 fits with the inside of the separation main body 71.

[0056] When the transmission rotating rod 65 rotates, it can drive the material scraping plate 74 to rotate. When the material scraping plate 74 rotates, it can push the impurities that cannot be melted into the material connecting cylinder 75.

[0057] The blocking clamping block 78 is slidably installed inside the clamping block expansion cylinder 76. One end of the blocking clamping block 78 is fixedly connected to the clamping block spring 77. The other end of the blocking clamping block 78 is of a circular structure. The circular end of the blocking clamping block 78 is clamped with the inside of the material connecting cylinder 75.

[0058] The interior of the separation main body 71 communicates with the exterior of the separation main body 71 through a material connection cylinder 75. A sealing block 78 can seal the top of the material connection cylinder 75. When the material scraping plate 74 pushes impurities into the interior of the material connection cylinder 75 for discharge, the circular structure outside the sealing block 78 can cause the sealing block 78 to contract into the interior of the block telescopic cylinder 76.

[0059] After the plastic solution enters the interior of the separation main 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 pass through the separation railings 73 for filtration before being discharged. The impurities that are difficult to dissolve in the plastic solution remain outside the separation railings 73 and move towards the edge of the separation main body 71 under the restriction of the conical structure of the separation railings 73. When the impurities in the plastic solution move to the material scraping plate 74, the impurities in the plastic solution are discharged from the material connection cylinder 75 to the exterior of the separation main body 71 driven by the transmission rotating rod 65. When the impurities in the plastic solution are discharged from the interior of the material connection cylinder 75, the block spring 77 contracts under the extrusion and causes the sealing block 78 to contract into the interior of the block telescopic cylinder 76. After the discharge of the impurities in the plastic solution is completed, the block spring 77 rebounds, driving the sealing block 78 to block the material connection cylinder 75, preventing the impurities inside the material connection cylinder 75 from drying out and blocking the material connection cylinder 75. When the plastic solution passes through the separation railings 73, the impurities therein can be filtered and discharged, thereby preventing the insulating layer from being extruded and formed with impurities, resulting in depressions or protrusions in the insulating layer.

[0060] Example 4:

[0061] The difference from the above embodiment is as follows. Please refer to Figure 7 - Figure 10 , the extrusion mechanism 8 includes an extrusion main body 81. One side of the extrusion main body 81 is fixedly connected to the separation main body 71. An inlet 82 is fixedly installed inside the extrusion main body 81. A cable inlet 83 is fixedly installed on one side of the extrusion main body 81. A cable outlet 84 is fixedly installed on the other side of the extrusion main body 81. One end of the inlet 82 is fixedly connected to an extrusion forming tube 85. A block connection ring 86 is rotatably installed outside the extrusion forming tube 85. A cleaning scraping plate 87 is fixedly connected to one side of the block connection ring 86. A fixed block 88 is fixedly installed outside the block connection ring 86. A movable block 89 is rotatably installed outside the fixed 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 main body 81. The movable end of the push rod spring 811 is fixedly connected to the push rod mounting seat 812. A transmission turntable 813 is rotatably installed inside the extrusion forming tube 85.

[0062] The interior of the extrusion molding tube 85 communicates with the interior of the separation body 71 through the feed port 82 and the discharge port 72. The cable to be extrusion-insulated enters from the cable inlet 83, then passes through the extrusion molding tube 85 and exits from the cable outlet 84. When the cable passes through the interior of the extrusion molding tube 85, it can drive the transmission turntable 813 to rotate;

[0063] The exterior of the transmission push rod 810 is connected to the push rod spring 811 through the push rod spring 811. The exterior of the transmission turntable 813 has a concave-convex structure. When the transmission turntable 813 rotates, it can drive the transmission push rod 810 to reciprocate.

[0064] A plurality of fixed blocks 88 are fixedly installed on the exterior of the block connection ring 86. The plurality of fixed blocks 88 are annularly and equidistantly distributed on the exterior of the block connection ring 86. A movable block 89 is rotatably installed on the exterior of each of the plurality of fixed blocks 88. The exteriors of the fixed block 88 and the movable block 89 are both inclined structures;

[0065] When the transmission push rod 810 reciprocates, it can drive the entire block connection ring 86 to rotate by pushing the fixed block 88. When the block connection ring 86 rotates, it can drive the cleaning scraper 87 to rotate synchronously.

[0066] After the plastic solution enters the interior of the feed port 82 from the separation mechanism 7, the cable starts to move inside the 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, it can compress the push rod spring 811. When the transmission push rod 810 no longer contacts the transmission turntable 813, the push rod spring 811 rebounds and drives the transmission push rod 810 to move, so that the transmission push rod 810 can be driven to reciprocate when the transmission turntable 813 rotates. When the transmission push rod 810 reciprocates, it can drive the block connection 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 rotate to a certain extent. When the transmission push rod 810 retracts, the movable block 89 rotates back under the action of gravity. When the transmission push rod 810 pushes again, it first contacts the movable block 89 and then the fixed block 88. When the transmission push rod 810 reciprocates, it drives the block connection ring 86 to rotate. When the block connection ring 86 rotates, it can drive the cleaning scraper 87 to clean the exterior of the extrusion molding tube 85. When the cable moves inside the extrusion mechanism 8, it can drive the plastic solution to move so that an insulating layer is formed on the surface of the cable. When the insulating layer leaves the extrusion molding tube 85, barium stearate in the insulating layer will remain on the exterior of the extrusion molding tube 85, and the cleaning scraper 87 can clean the barium stearate in time, thereby preventing barium stearate from forming scratches on the surface of the insulating layer during the production process.

[0067] Example Five:

[0068] A cable insulation extrusion device and a control method, using a cable insulation extrusion device as described in Embodiment 1, comprising the following steps:

[0069] At the beginning of processing, first pass the cable that needs to be extruded with insulation through the extrusion mechanism 8;

[0070] Then start the driving mechanism 6, and drive the plastic particles into the interior of the feed pipe 4 through the driving mechanism 6 and heat and melt the plastic particles inside the feed pipe 4 through the heating mechanism 3;

[0071] The plastic solution enters the interior of the extrusion mechanism 8 after the impurities inside are separated by the separation mechanism 7;

[0072] After the plastic solution enters the interior of the extrusion mechanism 8, start the external mechanism to drive the cable to move inside the extrusion mechanism 8, and the moving speed of the cable is 0.5 m / s;

[0073] When the cable moves inside the extrusion mechanism 8, it passes through the plastic solution, so that an insulating layer is formed on the surface of the cable.

[0074] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable insulation extrusion device, comprising a device main body, a heating bin, a feeding pipe, a material bin and a driving mechanism. The heating bin is fixedly installed at the top of the device main body. The feeding pipe is fixedly installed inside the heating bin. The material bin is fixedly connected to one side of the feeding pipe. The driving mechanism is installed at the top of the device main body, and it is characterized in that: 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 conveying pipe, and an extrusion mechanism is fixedly connected to one side of the separation mechanism; The driving mechanism includes a transmission rotating rod, a first conveying spiral plate, and a second conveying spiral plate. The first conveying spiral plate and the second conveying spiral plate are fixedly installed outside the transmission rotating rod. One end of the transmission rotating rod is rotatably installed on the device main body, and the other end of the transmission rotating rod passes through the material bin and the conveying pipe; One end of the conveying pipe is communicated with the inside of the material bin, the other end of the conveying pipe is communicated with the separation mechanism, and the inside of the material bin is communicated with the inside of the storage bin; The plastic particles stored inside the storage bin can fall into the inside of the material bin. When the transmission rotating rod drives the first conveying spiral plate and the second conveying spiral plate to rotate, it can drive the plastic particles to move from the inside of the material bin to the inside of the conveying pipe, and drive the plastic particles to move from the inside of the conveying pipe towards the separation mechanism. The heating mechanism can heat the outside of the conveying pipe to melt the plastic particles inside. The melted plastic material enters the inside of the extrusion mechanism after passing through the separation mechanism. The cable that needs to be extruded with an insulating layer passes through the extrusion mechanism and is extruded with an insulating layer through the melted plastic; The separation mechanism includes a separation main body. One side of the separation main body is fixedly connected to one side of the conveying pipe. An outlet is opened on the other side of the separation main body. Separation railings are fixedly installed inside the separation main body. A material scraping plate is fixedly installed outside the transmission rotating rod. A material connection cylinder is fixedly installed inside the separation main body. A block expansion cylinder is opened inside the separation main body. A block spring is fixedly installed inside the block expansion cylinder. The movable end of the block spring is fixedly connected to a blocking block; The separation railing is of a frustum structure, the side surface of the separation railing is a hollow structure, the outside of the transmission rotating rod is attached to the inner side of one end of the separation railing, one side of the material scraping plate is attached to the separation railing, and the outside of the material scraping plate is attached to the inside of the separation main body; When the transmission rotating rod rotates, it can drive the material scraping plate to rotate. When the material scraping plate rotates, it can push the impurities that cannot be melted into the inside of the material connection cylinder; The blocking block is slidably installed inside the block expansion cylinder. One end of the blocking block is fixedly connected to the block spring. The other end of the blocking block is of a circular structure. The circular end of the blocking block is clamped with the inside of the material connection cylinder; The inside of the separation main body is communicated with the outside of the separation main body through the material connection cylinder. The blocking block can seal the top of the material connection cylinder. When the material scraping plate pushes the impurities into the inside of the material connection cylinder and discharges them, it can make the blocking block contract towards the inside of the block expansion cylinder through the circular structure outside the blocking block.

2. The extruding device for the cable insulating layer according to claim 1, wherein: The driving mechanism includes a driving motor and a transmission rotating rod. The driving motor is fixedly installed at the top of the device main body, and the transmission rotating rod is rotatably installed on one side of the device main body. The power end of the driving motor is fixedly connected with a motor roller, a transmission belt is installed outside the motor roller, a rotating rod roller is fixedly installed outside the transmission rotating rod, and a first conveying spiral plate, a stirring rod and a second conveying spiral plate are respectively and fixedly installed outside the transmission rotating rod. The transmission rotating rod is in transmission connection with the motor roller at the power end of the driving motor 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. The cable insulation layer extrusion device according to claim 2, characterized in that: The installation structure outside the transmission rotating rod is, from the material bin to the separation mechanism direction, in turn, the rotating rod roller, the first conveying spiral plate, the stirring rod and the second conveying spiral plate. The outer diameters of the first conveying spiral plate and the second conveying spiral plate are the same as the inner diameter of the feeding pipe. When the first conveying spiral plate and the second conveying spiral plate rotate, they can drive the plastic particles to move. When the stirring rod rotates, it can stir the molten plastic particles inside the feeding pipe.

4. A cable insulation layer extrusion device according to claim 1, characterized in that: The extrusion mechanism includes an extrusion main body. One side of the extrusion main body is fixedly connected with the separation main body. An inlet is fixedly installed inside the extrusion main body, a cable inlet is fixedly installed on one side of the extrusion main body, a cable outlet is fixedly installed on the other side of the extrusion main body. One end of the inlet is fixedly connected with an extrusion forming pipe. A clamping block connection ring is rotatably installed outside the extrusion forming pipe. A cleaning scraper is fixedly connected to one side of the clamping block connection ring. Fixed clamping blocks are fixedly installed outside the clamping block connection ring. Movable clamping blocks are rotatably installed outside the fixed clamping blocks. A push rod mounting seat is fixedly installed outside the extrusion forming pipe. A transmission push rod is slidably installed inside the push rod mounting seat. A push rod spring is fixedly installed outside the extrusion main body. The movable end of the push rod spring is fixedly connected with the push rod mounting seat. A transmission turntable is rotatably installed inside the extrusion forming pipe.

5. The cable insulation layer extrusion device according to claim 4, characterized in that: The inside of the extrusion forming pipe is communicated with the inside of the separation main body through the inlet and the outlet. The cable that needs to be extruded and insulated enters from the cable inlet, then passes through the extrusion forming pipe and exits from the cable outlet. When the cable passes through the inside of the extrusion forming pipe, it can drive the transmission turntable to rotate. The outside of the transmission push rod is connected with the push rod spring through the push rod spring. The outside of the transmission turntable is of a concave-convex structure. When the transmission turntable rotates, it can drive the transmission push rod to reciprocate.

6. The cable insulation layer extrusion device according to claim 5, characterized in that: A plurality of fixed clamping blocks are fixedly installed outside the clamping block connection ring. The plurality of fixed clamping blocks are annularly and equidistantly distributed outside the clamping block connection ring. Movable clamping blocks are rotatably installed outside each of the plurality of fixed clamping blocks. The outsides of the fixed clamping blocks and the movable clamping blocks are both of an inclined structure. When the transmission push rod reciprocates, it can drive the clamping block connection ring to rotate as a whole by pushing the fixed clamping blocks. When the clamping block connection ring rotates, it can drive the cleaning scraper to rotate synchronously.

7. A cable insulation layer extrusion device and a control method, using a cable insulation layer extrusion device according to any one of claims 1-6.

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