Extrusion device and extrusion method for wear-resistant cable sheath

Abstract

The invention discloses an extrusion device and an extrusion method for a wear-resistant cable sheath, and relates to the technical field of sheath production. The device comprises a base, wherein four first supporting legs are arranged on the top of the base, and an extruder is fixedly arranged on the top of the four first supporting legs. The device and the pressure regulating mechanism are arranged to realize synchronous and adaptive adjustment of the extrusion pressure according to different sheath thicknesses caused by different head sizes, thereby ensuring the quality of the cable sheath without manual intervention and adjustment, having a high degree of automation, and being convenient and fast. The adjusting mechanism is also arranged to realize adaptive adjustment of the screw speed according to the thickness of the sheath extruded by the head, thereby automatically achieving adaptive adjustment of the material extrusion amount, meeting the need for more material when extruding a thick sheath, avoiding the occurrence of breakage, bubbles, etc. when extruding a thicker sheath, and at the same time ensuring that there will be no lumps and unevenness on the surface due to excessive material when extruding a thinner sheath.

Description

Technical Field

[0001] The invention relates to the technical field of cable sheath processing and production, in particular to an extrusion device and an extrusion method for a wear-resistant cable sheath. Background Art

[0002] The cable sheath is the outermost layer of the cable, such as VV is polyvinyl chloride insulation and polyvinyl chloride sheath. It needs to be processed by an extruder during the production process. The molten protective layer is wrapped on the outside of the cable by installing a molding extrusion head on the extruder, and then cooled and formed to form a cable sheath on the outside of the cable.

[0003] The invention patent with patent number CN115891091A discloses a cable sheath extruder, including an extruder, a first fixing sleeve is fixedly sleeved inside one end of the extruder through a first bolt, a pull rod is movably sleeved inside the first fixing sleeve, one end of the pull rod extending outside the first fixing sleeve is fixedly sleeved with a card seat, a conversion joint is clamped inside the card seat, a molding extrusion head is arranged on one side of the conversion joint, and a second fixing sleeve sleeved on the outside of the extruder is fixedly installed inside the other end of the pull rod extending outside the first fixing sleeve through a second bolt. The cable sheath extruder, by providing a U-shaped card slot adapted to the conversion joint on the inner side of the card seat, allows the molding extrusion head to be directly clamped on the inner side of the card seat through the conversion joint, and when the molding extrusion head is installed and disassembled, it is not necessary to use a jack intelligent device to support it, and the card seat can be provided to limit the support of the molding extrusion head, so that the installation and disassembly of the molding extrusion head is relatively convenient.

[0004] The above-mentioned device can provide limited support for the molding extrusion head through the card seat setting, so that the installation and disassembly of the molding extrusion head is relatively convenient. However, when the head is replaced according to the different size requirements of the cable core to adjust the extrusion thickness of the cable sheath, if the corresponding material extrusion amount and extrusion pressure are not increased synchronously, it is easy to cause bubbles, pores or glue breakage during cable sheath extrusion. In addition, as the extruder screw speed and extrusion pressure increase synchronously, the temperature of the extruder increases significantly. However, the temperature of the extruder exceeds the appropriate range for extruding the sheath, which will cause yellowing of the sheath, material decomposition or overflow. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide an extrusion device and an extrusion method for a wear-resistant cable sheath to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an extrusion device for a wear-resistant cable sheath, comprising a base, four first supporting legs are arranged on the top of the base, an extruder is fixedly arranged on the top of the four first supporting legs, a screw is rotatably arranged inside the extruder, a head is threadedly arranged on the end of the extruder, a feed port is fixedly arranged on the top of the extruder, eight second supporting legs are arranged on the top of the base, a first cooling water trough and a second cooling water trough are fixedly arranged on the top of the eight second supporting legs, a measuring mechanism is fixedly arranged on the top of the base, two third supporting legs are fixedly arranged on the top of the base, a laser rangefinder is fixedly arranged on the top of the two third supporting legs, and a circulating Ring heat dissipation mechanism, a water pump is fixedly arranged on the top of the base and is connected with the circulating heat dissipation mechanism and the first cooling water tank, a quantity adjustment mechanism is arranged at the end of the extruder away from the head, and a pressure regulating mechanism is arranged on the top of the base, the pressure regulating mechanism includes a first pressure regulating ring, a second pressure regulating ring, a third pressure regulating ring, a first arc-shaped tooth, a second arc-shaped tooth, a pressure regulating rack and a plurality of arc-shaped grooves and a pressure regulating assembly, the first pressure regulating ring, the second pressure regulating ring and the third pressure regulating ring are rotated and arranged in sequence at one end of the head close to the extruder, the first arc-shaped tooth is fixedly arranged on the top of the third pressure regulating ring, the second arc-shaped tooth is fixedly arranged on the top of the second pressure regulating ring, and the plurality of arc-shaped grooves are respectively arranged in a circular array on the corresponding first pressure regulating ring, second pressure regulating ring and third pressure regulating ring.

[0007] Preferably, the pressure regulating assembly includes an L-shaped connecting rod, two sliders, a slide groove, a U-shaped frame, four mounting plates, a first arc spring and a second arc spring, the U-shaped frame is fixedly arranged on the top of the base, the slide groove is arranged on the middle side wall of the U-shaped frame, the two sliders are slidably arranged inside the slide groove, the pressure regulating rack is fixedly arranged on the two sliders, the L-shaped connecting rod is fixedly arranged on the top of the pressure regulating rack, and the two mounting plates are respectively fixedly arranged on the side walls of the first pressure regulating ring and the second pressure regulating ring, the first arc spring is fixedly arranged on one of the mounting plates, the second arc spring is fixedly arranged on the other mounting plate, and the other two mounting plates are fixedly arranged on the side walls of the L-shaped frame.

[0008] Preferably, the first arc-shaped tooth and the second arc-shaped tooth are meshed with the voltage regulating rack, and the length of the first arc-shaped tooth is twice the length of the second arc-shaped tooth.

[0009] Preferably, the measuring mechanism includes a fixed plate, a cylinder, a measuring motor, a first rack, a push plate, a second rack, a first L-shaped rod, a second L-shaped rod, two rotating shafts, a first wedge block, a second wedge block, a vertical groove, a vertical plate and a measuring gear, wherein the fixed plate is fixedly arranged on the top of the base, the cylinder is fixedly arranged on the side wall of the fixed plate, the second wedge block is slidably arranged on the top of the base, the push plate is fixedly arranged on the top of the second wedge block, the vertical groove is arranged on the side wall of the push plate, the vertical plate is fixedly arranged on the end of the cylinder output shaft, and the vertical plate slides in the vertical groove, the measuring motor is fixedly arranged on the side wall of the push plate, the measuring gear is fixedly arranged on the end of the measuring motor output shaft, the first rack is slidably arranged on a side wall of the push plate away from the measuring motor, the second rack is slidably arranged on a side wall of the push plate away from the measuring motor, the first L-shaped rod is fixedly arranged on the side wall of the second rack, the second L-shaped rod is fixedly arranged on the side wall of the first rack, and the two rotating shafts are rotatably arranged on the top side walls of the first L-shaped rod and the second L-shaped rod respectively.

[0010] Preferably, the first L-shaped rod and the second L-shaped rod are both telescopic structures.

[0011] Preferably, the adjusting mechanism includes a special-shaped rod, a first conical block, two first inclined grooves, an inclined plate, an adjusting motor, a sliding plate, a second conical block, two support rods and two limit shafts, the two support rods are fixedly arranged on the top of the base, the inclined plate is fixedly arranged on the top of the support rod, the two first inclined grooves are arranged on the inclined plate, the two limit shafts are slidably arranged in the two first inclined grooves respectively, the sliding plate is fixedly arranged on the top of the limit shaft, the adjusting motor is arranged on the side wall of the sliding plate, the second conical block is fixedly arranged on the end of the output shaft of the adjusting motor, one end of the special-shaped rod is fixedly arranged on the top of the mounting plate, the other end of the special-shaped rod is fixedly connected to the pressure regulating rack, and the first conical block is fixedly connected to the end of the screw.

[0012] Preferably, the first conical block and the second conical block are meshed with each other for transmission.

[0013] Preferably, the circulating heat dissipation mechanism includes a first connecting rod, a sliding shaft, a pulling rod, a movable ring, a corrugated tube, a mounting frame, a second inclined groove, a water outlet, a water outlet pipe, a water inlet pipe and an air cooling box. One end of the corrugated tube is fixedly sleeved on the outer wall of the extruder, and the movable ring is rotatably arranged on the other end of the corrugated tube. One end of the first connecting rod is fixedly arranged on the top of the pressure regulating rack, the sliding shaft is fixedly arranged on the other end of the first connecting rod, the pulling rod is fixedly arranged on the bottom of the sliding shaft, and the pulling rod is fixedly connected to the movable ring, the mounting frame is fixedly arranged on the top of the base, the second inclined groove is arranged on the top of the mounting frame, the water outlet is arranged on the side wall of the first cooling water trough, the two ends of the water outlet pipe are respectively connected and arranged at the corrugated tube and the water outlet, the two ends of the water inlet pipe are respectively connected and arranged on the side wall of the first cooling water trough of the corrugated tube box, and the air cooling box sleeve is fixedly arranged on the top of the base.

[0014] Preferably, a method for extruding a wear-resistant cable sheath:

[0015] S1: First, install a machine head of appropriate size according to the thickness of the cable core and processing requirements, then pass one end of the cable core through the screw, pass through the first cooling water trough and the second cooling water trough, and finally fix it on the traction machine;

[0016] S2: Then, the material is added into the extruder from the feed port;

[0017] S3: Then the measuring mechanism works to determine the inner diameter of the die, and then the measuring mechanism drives the pressure regulating mechanism to adjust the extrusion pressure of the extruder, and the measuring mechanism drives the volume regulating mechanism to work synchronously, and the volume regulating mechanism drives the screw to rotate, and the screw rotation extrude and heat the fixed material, so that the material forms a gel and is extruded from the die. At the same time of extrusion, the traction machine works to pull the cable core at a uniform speed, and the pressure regulating mechanism drives the circulating cooling mechanism to work synchronously;

[0018] S4: Then the length of the cable sheath is measured and recorded using an optical measuring instrument.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention realizes synchronous adaptive adjustment of extrusion pressure according to different sheath thicknesses caused by different die sizes through the setting of measuring mechanism and pressure regulating mechanism, thereby ensuring the quality of cable sheath without manual intervention and adjustment, having a high degree of automation, being convenient and fast, saving technical talent resources, and being conducive to promotion, and also realizes adaptive adjustment of screw speed according to the thickness of the sheath extruded by the die head through the setting of the adjusting mechanism, thereby automatically achieving adaptive adjustment of material extrusion amount, meeting the need for more material when extruding thick sheath, avoiding the occurrence of breakage, bubbles, etc. when extruding thicker sheath, and at the same time ensuring that there will be no pimples and unevenness on the surface due to excessive material when extruding thinner sheath, having strong adaptability, and greatly reducing the difficulty of operation;

[0021] The present invention realizes the measurement of the calibers of machine heads of various sizes by setting the measuring mechanism, and has strong practicality, simple operation, convenience and speed;

[0022] The present invention realizes adaptive adjustment of the amount of cooling water in the corrugated tube according to the degree of temperature increase of the extruder through the arrangement of the first connecting rod, the sliding shaft, the pulling rod, the movable ring, the corrugated tube, the mounting frame, the second inclined groove, the water outlet, the water outlet pipe, the water inlet pipe and the air cooling box, and utilizes the water that becomes hot after absorbing the excessive temperature of the extruder to flow back into the first cooling water tank to perform the first-stage hot water cooling on the cable sheath, and no additional energy is needed to heat the water in the first cooling water tank, which saves energy to a certain extent and makes the water flow circulate, thereby ensuring the cooling effect of the extruder and the hot water cooling effect of the cable sheath, greatly prolonging the service life of the extruder and ensuring the quality of the cable sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the measuring mechanism of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the pressure regulating mechanism of the present invention;

[0026] Figure 4 It is a partial structural schematic diagram of the pressure regulating mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the positional relationship between the circulating heat dissipation mechanism and the amount adjustment mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the adjustment mechanism of the present invention;

[0029] Figure 7 It is a partial structural schematic diagram of the circulating heat dissipation mechanism of the present invention.

[0030] In the figure: 1. base; 2. first support leg; 3. extruder; 4. feed port; 5. measuring mechanism; 51. fixed plate; 52. cylinder; 53. measuring motor; 54. first rack; 55. push plate; 56. second rack; 57. first L-shaped rod; 58. second L-shaped rod; 59. rotating shaft; 510. first wedge block; 511. second wedge block; 512. vertical slot; 513. vertical plate; 514. measuring gear; 6. circulating heat dissipation mechanism; 61. first connecting rod; 62. sliding shaft; 63. pull rod; 64. movable ring; 65. corrugated tube; 66. mounting frame; 67. second chute; 68. water outlet; 69. water outlet pipe; 610. water inlet pipe; 611. air cooling box; 7. adjusting mechanism; 71. special-shaped rod; 72 , the first conical block; 73, the first inclined groove; 74, the inclined plate; 75, the adjusting motor; 76, the sliding plate; 77, the second conical block; 78, the support rod; 79, the limit shaft; 8, the pressure regulating mechanism; 81, the L-shaped connecting rod; 82, the first pressure regulating ring; 83, the second pressure regulating ring; 84, the third pressure regulating ring; 85, the first arc-shaped tooth; 86, the second arc-shaped tooth; 87, the pressure regulating rack; 88, the slider; 89, the slide groove; 810, the U-shaped frame; 811, the arc-shaped groove; 812, the mounting plate; 813, the first arc-shaped spring; 814, the second arc-shaped spring; 9, the machine head; 10, the first cooling water trough; 12, the second supporting leg; 13, the second cooling water trough; 14, the laser rangefinder; 15, the third supporting leg; 16, the screw; 17, the water pump. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-7, an embodiment of the present invention: an extrusion device for a wear-resistant cable sheath, comprising a base 1, four first supporting legs 2 are arranged on the top of the base 1, an extruder 3 is fixedly arranged on the top of the four first supporting legs 2, a screw 16 is rotatably arranged inside the extruder 3, a head 9 is threadedly arranged on the end of the extruder 3, a feed port 4 is fixedly arranged on the top of the extruder 3, eight second supporting legs 12 are arranged on the top of the base 1, a first cooling water trough 10 and a second cooling water trough 13 are fixedly arranged on the top of the eight second supporting legs 12, a measuring mechanism 5 is fixedly arranged on the top of the base 1, two third supporting legs 15 are fixedly arranged on the top of the two third supporting legs 15, a laser rangefinder 14 is fixedly arranged on the top of the extruder 3, a circulating heat dissipation mechanism 6 is arranged on the top of the base 1 A water pump 17 is fixedly arranged to be connected with the circulating heat dissipation mechanism 6 and the first cooling water tank 10, a quantity adjustment mechanism 7 is arranged at the end of the extruder 3 away from the head 9, a pressure regulating mechanism 8 is arranged at the top of the base 1, the pressure regulating mechanism comprises a first pressure regulating ring 82, a second pressure regulating ring 83, a third pressure regulating ring 84, a first arc-shaped tooth 85, a second arc-shaped tooth 86, a pressure regulating rack 87 and a plurality of arc-shaped grooves 811 and a pressure regulating assembly, the first pressure regulating ring 82, the second pressure regulating ring 83 and the third pressure regulating ring 84 are rotatably arranged in sequence at one end of the head 9 close to the extruder 3, the first arc-shaped tooth 85 is fixedly arranged on the top of the third pressure regulating ring 84, the second arc-shaped tooth 86 is fixedly arranged on the top of the second pressure regulating ring 83, and the plurality of arc-shaped grooves 811 are respectively arranged in a circular array on the corresponding first pressure regulating ring 82, the second pressure regulating ring 83 and the third pressure regulating ring 84. First, according to the thickness of the cable core and the processing requirements, a head 9 of appropriate size is installed, and then one end of the cable core is passed through the screw 16, through the first cooling water trough 10 and the second cooling water trough 13, and finally fixed on the traction machine, and then the material is added to the extruder 3 from the feed port 4, and then the measuring mechanism 5 works to determine the inner diameter of the head 9, and then the measuring mechanism 5 drives the pressure regulating mechanism 8 to adjust the extrusion pressure, and the measuring mechanism 5 drives the adjusting mechanism 7 to work synchronously, and the adjusting mechanism 7 drives the screw 16 to rotate, and the screw 16 rotates to extrude and heat the fixed material, so that the material forms a colloid and the head 9 is extruded. At the same time of extrusion, the traction machine works to pull the cable core at a uniform speed, and synchronously drives the circulating cooling mechanism to work through the moving of the pressure regulating rack 87; it realizes that the extrusion pressure and extrusion amount are adjusted synchronously and adaptively according to the different sizes of the head 9, resulting in different sheath thicknesses, so that the quality of the cable sheath is ensured without manual intervention and adjustment, with high degree of automation, strong applicability, convenience and speed, saving technical talent resources, and conducive to promotion.

[0033] Specifically, the pressure regulating assembly includes an L-shaped connecting rod 81, two sliders 88, a slide groove 89, a U-shaped frame 810, four mounting plates 812, a first arc spring 813 and a second arc spring 814. The U-shaped frame 810 is fixedly set on the top of the base 1, the slide groove 89 is set on the middle side wall of the U-shaped frame 810, the two sliders 88 are slidably set inside the slide groove 89, the pressure regulating rack 87 is fixedly set on the two sliders 88, the L-shaped connecting rod 81 is fixedly set on the top of the pressure regulating rack 87, and the two mounting plates 812 are respectively fixedly set on the side walls of the first pressure regulating ring 82 and the second pressure regulating ring 83, the first arc spring 813 is fixedly set on one of the mounting plates 812, the second arc spring 814 is fixedly set on the other mounting plate 812, and the other two mounting plates 812 are fixedly set on the side walls of the L-shaped frame. The L-shaped connecting rod 81 moves synchronously, and the movement of the L-shaped connecting rod 81 drives the pressure regulating rack 87 to move synchronously. The movement of the pressure regulating rack 87 drives the corresponding second pressure regulating ring 83 and the third pressure regulating ring 84 to rotate, so that the arc grooves 811 on the corresponding first pressure regulating ring 82, the second pressure regulating ring 83 and the third pressure regulating ring 84 are misaligned, so that the diameter of the corresponding arc groove 811 becomes smaller, and the extrusion pressure of the extruder 3 is adjusted by increasing the diameter of the corresponding head 9; the thickness of the extruded sheath is judged according to the size of the head 9, so as to adaptively adjust the extrusion pressure of the colloid, ensure the quality and density of the cable, and avoid the occurrence of bubbles and breakage of the sheath due to insufficient extrusion pressure when the sheath is too thick. No manual intervention is required, and the degree of automation is high, which ensures the quality of the cable.

[0034] Specifically, the first arc-shaped tooth 85 and the second arc-shaped tooth 86 are meshed with the voltage regulating rack 87 , and the length of the first arc-shaped tooth 85 is twice the length of the second arc-shaped tooth 86 .

[0035] Specifically, the measuring mechanism 5 includes a fixed plate 51, a cylinder 52, a measuring motor 53, a first rack 54, a push plate 55, a second rack 56, a first L-shaped rod 57, a second L-shaped rod 58, two rotating shafts 59, a first wedge block 510, a second wedge block 511, a vertical slot 512, a vertical plate 513 and a measuring gear 514. The fixed plate 51 is fixedly arranged on the top of the base 1, the cylinder 52 is fixedly arranged on the side wall of the fixed plate 51, the second wedge block 511 is slidably arranged on the top of the base 1, the push plate 55 is fixedly arranged on the top of the second wedge block 511, the vertical slot 512 is arranged on the side wall of the push plate 55, and the vertical plate 513 is fixedly arranged on the top of the second wedge block 511. It is arranged at the end of the output shaft of the cylinder 52, and the vertical plate 513 is located in the vertical groove 512 and slides. The measuring motor 53 is fixedly arranged on the side wall of the push plate 55. The measuring gear 514 is fixedly arranged on the end of the output shaft of the measuring motor 53. The first rack 54 is slidably arranged on the side wall of the push plate 55 away from the measuring motor 53. The second rack 56 is slidably arranged on the side wall of the push plate 55 away from the measuring motor 53. The first L-shaped rod 57 is fixedly arranged on the side wall of the second rack 56. The second L-shaped rod 58 is fixedly arranged on the side wall of the first rack 54. The two rotating shafts 59 are rotatably arranged on the top side walls of the first L-shaped rod 57 and the second L-shaped rod 58 respectively. The output shaft of the cylinder 52 extends out to drive the push plate and the second wedge block 511 to move and contact the first wedge block 510, so that the second wedge block 511 moves along the inclined surface of the first wedge block 510 until the rotating shaft 59 moves into the hole of the machine head 9, and then the output shaft of the measuring motor 53 rotates to drive the first rack 54 and the second rack 56 to move outward synchronously, and synchronously drive the first L-shaped rod 57 and the second L-shaped rod 58 to move synchronously. The movement of the first L-shaped rod 57 and the second L-shaped rod 58 drives the rotating shaft 59 to move synchronously until the two rotating shafts 59 move into the hole of the machine head 9, and the diameter of the machine head 9 is measured; it realizes the measurement of the calibers of machine heads 9 of various sizes, and is highly practical, simple to operate, and convenient and fast.

[0036] Specifically, the first L-shaped rod 57 and the second L-shaped rod 58 are both telescopic structures.

[0037] Specifically, the amount adjustment mechanism 7 includes a special-shaped rod 71, a first conical block 72, two first inclined grooves 73, an inclined plate 74, an amount adjustment motor 75, a sliding plate 76, a second conical block 77, two support rods 78 and two limit shafts 79. The two support rods 78 are fixedly arranged on the top of the base 1, the inclined plate 74 is fixedly arranged on the top of the support rods 78, the two first inclined grooves 73 are arranged on the inclined plate 74, the two limit shafts 79 are respectively slidably arranged in the two first inclined grooves 73, the sliding plate 76 is fixedly arranged on the top of the limit shaft 79, the amount adjustment motor 75 is arranged on the side wall of the sliding plate 76, the second conical block 77 is fixedly arranged on the end of the output shaft of the amount adjustment motor 75, one end of the special-shaped rod 71 is fixedly arranged on the top of the mounting plate 812, the other end of the special-shaped rod 71 is fixedly connected to the pressure regulating rack 87, and the first conical block 72 is fixedly connected to the end of the screw 16. The movement of the pressure regulating rack 87 drives the special-shaped rod 71 to move synchronously, and the movement of the special-shaped rod 71 drives the inclined plate 74 and the limiting shaft 79 to slide along the first inclined groove 73, and the movement of the inclined plate 74 drives the second conical block 77 to move synchronously, so that the transmission ratio of the corresponding first conical block 72 and the second conical block 77 is adaptively adjusted, and the second conical block 77 is driven to rotate by the output shaft of the adjusting motor 75, and the second conical block 77 is driven to rotate by the rotation of the second conical block 77, and the first conical block 72 drives the screw 16 to rotate; the speed of the screw 16 is adaptively adjusted according to the thickness of the extruded sheath of the die head 9, so as to automatically achieve the adaptive adjustment of the material extrusion amount, meet the need for more material when extruding a thick sheath, avoid the occurrence of breakage, bubbles, etc. when extruding a thicker sheath, and at the same time ensure that there will be no excessive material when extruding a thinner sheath, resulting in lumps and unevenness on the surface, with strong adaptability and greatly reduced operation difficulty.

[0038] Specifically, the first conical block 72 and the second conical block 77 are meshed and transmitted with each other.

[0039] Specifically, the circulating heat dissipation mechanism 6 includes a first connecting rod 61, a sliding shaft 62, a pull rod 63, a movable ring 64, a corrugated tube 65, a mounting frame 66, a second chute 67, a water outlet 68, a water outlet pipe 69, a water inlet pipe 610 and an air cooling box 611, one end of the corrugated tube 65 is fixedly sleeved on the outer wall of the extruder 3, the movable ring 64 is rotatably set at the other end of the corrugated tube 65, one end of the first connecting rod 61 is fixedly set on the top of the pressure regulating rack 87, the sliding shaft 62 is fixedly set at the other end of the first connecting rod 61, the pull rod 63 is fixedly set at the bottom of the sliding shaft 62, and the pull rod 63 is fixedly connected to the movable ring 64, the mounting frame 66 is fixedly set on the top of the base 1, the second inclined groove 67 is set on the top of the mounting frame 66, the water outlet 68 is set on the side wall of the first cooling water trough 10, the two ends of the water outlet pipe 69 are respectively connected and set at the corrugated tube 65 and the water outlet 68, the two ends of the water inlet pipe 610 are respectively connected and set at the corrugated tube 65 and the side wall of the first cooling water trough 10, and the air cooling box 611 is fixedly set on the top of the base 1. The first connecting rod 61 is driven to move by the movement of the pressure regulating rack 87, and the movement of the first connecting rod 61 drives the sliding shaft 62 and the pull rod 63 to move synchronously along the second inclined groove 67, and the movement of the pull rod 63 drives the movable ring 64 to move synchronously, and the movement of the movable ring 64 drives the corrugated tube 65 to extend and open, so that the corrugated tube 65 can accommodate more cooling water. After the cooling water inside the corrugated tube 65 absorbs the excessive heat of the extruder 3, it flows through the water pump 17 and the water outlet pipe 69, and finally flows out from the water outlet 68. The hot water that absorbs the heat performs the first stage cooling on the cable sheath just extruded, and the water in the first cooling water tank 10 flows along the water inlet pipe 610 through the air cooling box 611 for cooling. Finally, it flows into the corrugated tube 65 to cool down the extruder 3 with too high temperature again; it realizes adaptive adjustment according to the degree of temperature rise of the extruder 3, automatically adjusts the amount of cooling water in the corrugated tube 65, and utilizes the water that becomes hot after absorbing the excessive temperature of the extruder 3 to flow back into the first cooling water tank 10, so as to perform the first-level hot water cooling of the cable sheath, and no additional energy is required to heat the water in the first cooling water tank 10, which saves energy to a certain extent and makes the water flow circulate, thereby ensuring the cooling effect of the extruder 3 and the hot water cooling effect of the cable sheath, greatly extending the service life of the extruder 3 and also ensuring the quality of the cable sheath.

[0040] Specifically, a method for extruding a wear-resistant cable sheath:

[0041] S1: First, install a head 9 of appropriate size according to the thickness of the cable core and processing requirements, then pass one end of the cable core through the screw 16, pass through the first cooling water trough 10 and the second cooling water trough 13, and finally fix it on the traction machine;

[0042] S2: Then, the material is added into the extruder 3 from the feed port 4;

[0043] S3: Then the measuring mechanism 5 works to determine the inner diameter of the die 9, and then the measuring mechanism 5 drives the pressure regulating mechanism 8 to adjust the extrusion pressure of the extruder 3, and the measuring mechanism 5 drives the amount regulating mechanism 7 to work synchronously, and the amount regulating mechanism 7 drives the screw 16 to rotate, and the screw 16 rotates to extrude and heat the fixed material, so that the material forms a gel and is extruded by the die 9. At the same time of extrusion, the traction machine works to pull the cable core at a uniform speed, and the circulating cooling mechanism is driven to work synchronously by the pressure regulating mechanism 8;

[0044] S4: Then measure and record the length of the cable sheath using an optical measuring instrument

[0045] Working principle: First, install the head 9 of appropriate size according to the thickness of the cable core and the processing requirements, then pass one end of the cable core through the screw 16, pass through the first cooling water trough 10 and the second cooling water trough 13, and finally fix it on the tractor, then add the material into the extruder 3 from the feed port 4, and then extend the output shaft of the cylinder 52 to drive the push plate and the second wedge block 511 to move against the first wedge block 510, so that the second wedge block 511 moves along the inclined surface of the first wedge block 510 until the shaft 59 moves into the hole of the head 9, and then the output shaft of the measuring motor 53 rotates to drive the first rack 54 and the second rack 56 to move outward synchronously, and synchronously drive the first L-shaped rod 57 and the second L-shaped rod 5 8 moves synchronously, the first L-shaped rod 57 and the second L-shaped rod 58 move to drive the rotating shaft 59 to move synchronously, until the two rotating shafts 59 move into the hole of the die head 9, and the inner diameter of the die head 9 is judged, and then the L-shaped connecting rod 81 is driven to move synchronously by the first L-shaped rod 57, and the L-shaped connecting rod 81 moves to drive the pressure regulating rack 87 to move synchronously, and the pressure regulating rack 87 moves to drive the corresponding second pressure regulating ring 83 and the third pressure regulating ring 84 to rotate, so that the arc grooves 811 on the corresponding first pressure regulating ring 82, the second pressure regulating ring 83 and the third pressure regulating ring 84 are misaligned, so that the caliber of the corresponding arc groove 811 becomes smaller, and the extrusion pressure of the extruder 3 is increased from the caliber of the corresponding die head 9, and synchronously through The movement of the pressure regulating rack 87 drives the special-shaped rod 71 to move synchronously, and the movement of the special-shaped rod 71 drives the inclined plate 74 and the limit shaft 79 to slide along the first inclined groove 73, and the movement of the inclined plate 74 drives the second conical block 77 to move synchronously, so that the transmission ratio of the corresponding first conical block 72 and the second conical block 77 is adaptively adjusted, and the second conical block 77 is driven to rotate by the output shaft of the adjusting motor 75, and the second conical block 77 is driven to rotate by the rotation of the second conical block 77. The first conical block 72 drives the screw 16 to rotate, and the screw 16 rotates to extrude and heat the fixed material, so that the material forms a gel and is extruded by the machine head 9. At the same time of extrusion, the traction machine works to pull the cable core at a uniform speed, and the belt is synchronously moved by the pressure regulating rack 87 The first connecting rod 61 is moved, and the movement of the first connecting rod 61 drives the sliding shaft 62 and the pull rod 63 to move synchronously along the second inclined groove 67. The movement of the pull rod 63 drives the movable ring 64 to move synchronously. The movement of the movable ring 64 drives the corrugated tube 65 to extend and open, so that the corrugated tube 65 can accommodate more cooling water. After the cooling water inside the corrugated tube 65 absorbs the excessive heat of the extruder 3, it flows through the water pump 17 and the water outlet pipe 69, and finally flows out from the water outlet 68. The hot water that absorbs heat performs the first stage cooling on the cable sheath just extruded, and the water in the first cooling water tank 10 flows along the water inlet pipe 610 through the air cooling box 611 for cooling, and finally flows into the corrugated tube 65 to cool down the extruder 3 with too high temperature again.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion device for a wear-resistant cable sheath, comprising a base (1), the top of the base (1) being provided with four first support legs (2), the tops of the four first support legs (2) being provided with an extruder (3) fixedly, the extruder (3) being provided with a screw (16) rotatably disposed inside, the end of the extruder (3) being provided with a head (9) threadedly, Features: The top of the extruder (3) is fixedly provided with a feed port (4); the top of the base (1) is provided with eight second support legs (12); the tops of the eight second support legs (12) are respectively fixedly provided with a first cooling water trough (10) and a second cooling water trough (13); the top of the base (1) is fixedly provided with a measuring mechanism (5); the top of the base (1) is fixedly provided with two third support legs (15); the tops of the two third support legs (15) are both fixedly provided with a laser rangefinder (14); the top of the extruder (3) is provided with a circulating heat dissipation mechanism (6); the top of the base (1) is fixedly provided with a water pump (17) and a circulating heat dissipation mechanism (18); The heat mechanism (6) is connected to the first cooling water tank (10); an amount regulating mechanism (7) is arranged at one end of the extruder (3) away from the die head (9); a pressure regulating mechanism (8) is arranged at the top of the base (1); the pressure regulating mechanism comprises a first pressure regulating ring (82), a second pressure regulating ring (83), a third pressure regulating ring (84), a first arc-shaped tooth (85), a second arc-shaped tooth (86), a pressure regulating rack (87) and a plurality of arc-shaped grooves (811) and a pressure regulating assembly; the first pressure regulating ring (82), the second pressure regulating ring (83) and the third pressure regulating ring (84) are arranged in sequence and rotated at one end of the die head (9) close to the extruder (3); the first arc-shaped tooth (85) ) is fixedly arranged on the top of the third pressure regulating ring (84), the second arc-shaped tooth (86) is fixedly arranged on the top of the second pressure regulating ring (83), and the plurality of arc-shaped grooves (811) are respectively arranged in a circular array on the corresponding first pressure regulating ring (82), the second pressure regulating ring (83) and the third pressure regulating ring (84), the pressure regulating assembly comprises an L-shaped connecting rod (81), two sliders (88), a slide groove (89), a U-shaped frame (810), four mounting plates (812), a first arc-shaped spring (813) and a second arc-shaped spring (814), the U-shaped frame (810) is fixedly arranged on the top of the base (1), and the slide groove (89) is arranged on the U-shaped frame (810) middle side wall, two of the sliders (88) are slidably arranged inside the slide groove (89), the pressure regulating rack (87) is fixedly arranged on the two sliders (88), the L-shaped connecting rod (81) is fixedly arranged on the top of the pressure regulating rack (87), wherein the two mounting plates (812) are respectively fixedly arranged on the side walls of the first pressure regulating ring (82) and the second pressure regulating ring (83), the first arc spring (813) is fixedly arranged on one of the mounting plates (812), the second arc spring (814) is fixedly arranged on the other mounting plate (812), and the other two mounting plates (812) are fixedly arranged on the side walls of the L-shaped frame,The measuring mechanism (5) comprises a fixed plate (51), a cylinder (52), a measuring motor (53), a first rack (54), a push plate (55), a second rack (56), a first L-shaped rod (57), a second L-shaped rod (58), two rotating shafts (59), a first wedge block (510), a second wedge block (511), a vertical groove (512), a vertical plate (513) and a measuring gear (514), wherein the fixed plate (51) is fixedly arranged on the top of the base (1), the cylinder (52) is fixedly arranged on the side wall of the fixed plate (51), the second wedge block (511) is slidably arranged on the top of the base (1), the push plate (55) is fixedly arranged on the top of the second wedge block (511), and the vertical groove (512) is arranged on the push plate (55). ) side wall, the vertical plate (513) is fixedly arranged on the end of the output shaft of the cylinder (52), and the vertical plate (513) is located in the vertical groove (512) and slides, the measuring motor (53) is fixedly arranged on the side wall of the push plate (55), the measuring gear (514) is fixedly arranged on the end of the output shaft of the measuring motor (53), the first rack (54) is slidably arranged on a side wall of the push plate (55) away from the measuring motor (53), the second rack (56) is slidably arranged on a side wall of the push plate (55) away from the measuring motor (53), the first L-shaped rod (57) is fixedly arranged on the side wall of the second rack (56), the second L-shaped rod (58) is fixedly arranged on the side wall of the first rack (54), and the two rotating shafts (59) are rotatably arranged on the side wall of the first rack (54). The first L-shaped rod (57) and the second L-shaped rod (58) are provided with a top side wall, the adjusting mechanism (7) comprising a special-shaped rod (71), a first conical block (72), two first inclined grooves (73), an inclined plate (74), an adjusting motor (75), a sliding plate (76), a second conical block (77), two support rods (78) and two limit shafts (79), the two support rods (78) being fixedly arranged on the top of the base (1), the inclined plate (74) being fixedly arranged on the top of the support rods (78), the two first inclined grooves (73) being arranged on the inclined plate (74), the two limit shafts (79) being slidably arranged in the two first inclined grooves (73), the sliding plate (76) being fixedly arranged on the top of the limit shaft (79), the adjusting motor (75) ) is arranged on the side wall of the sliding plate (76), the second conical block (77) is fixedly arranged at the end of the output shaft of the regulating motor (75), one end of the special-shaped rod (71) is fixedly arranged on the top of the mounting plate (812), the other end of the special-shaped rod (71) is fixedly connected to the pressure regulating rack (87), the first conical block (72) is fixedly connected to the end of the screw (16), the circulating heat dissipation mechanism (6) comprises a first connecting rod (61), a sliding shaft (62), a pull rod (63), a movable ring (64), a corrugated tube (65), a mounting frame (66), a second inclined groove (67), a water outlet (68), a water outlet pipe (69), a water inlet pipe (610) and an air cooling box (611), one end of the corrugated tube (65) is fixedly sleeved on the outer wall of the extruder (3),The movable ring (64) is rotatably arranged at the other end of the corrugated tube (65), one end of the first connecting rod (61) is fixedly arranged at the top of the pressure regulating rack (87), the sliding shaft (62) is fixedly arranged at the other end of the first connecting rod (61), the pull rod (63) is fixedly arranged at the bottom of the sliding shaft (62), and the pull rod (63) is fixedly connected to the movable ring (64), the mounting frame (66) is fixedly arranged at the top of the base (1), the second inclined groove (67) is arranged at the top of the mounting frame (66), the water outlet (68) is arranged at the side wall of the first cooling water trough (10), the two ends of the water outlet pipe (69) are respectively connected and arranged at the corrugated tube (65) and the water outlet (68), the two ends of the water inlet pipe (610) are respectively connected and arranged at the corrugated tube (65) and the side wall of the first cooling water trough (10), and the air cooling box (611) sleeve is fixedly arranged at the top of the base (1).

2. The extrusion device for a wear-resistant cable sheath according to claim 1, Features: The first arc-shaped tooth (85) and the second arc-shaped tooth (86) are both meshed with the voltage regulating rack (87), and the length of the first arc-shaped tooth (85) is twice the length of the second arc-shaped tooth (86).

3. The extrusion device for a wear-resistant cable sheath according to claim 1, Features: The first L-shaped rod (57) and the second L-shaped rod (58) are both telescopic structures.

4. The extrusion device for a wear-resistant cable sheath according to claim 1, Features: The first conical block (72) and the second conical block (77) are meshed with each other for transmission.

5. An extrusion method of an extrusion device for a wear-resistant cable sheath according to any one of claims 1 to 4, Features: S1: First, a machine head (9) of appropriate size is installed according to the thickness of the cable core and processing requirements, and then one end of the cable core is passed through a screw rod (16), passes through a first cooling water trough (10) and a second cooling water trough (13), and finally fixed on a traction machine; S2: Then, the material is added into the extruder (3) from the feed port (4); S3: Then the measuring mechanism (5) works to determine the inner diameter of the die head (9), and then the measuring mechanism (5) drives the pressure regulating mechanism (8) to adjust the extrusion pressure of the extruder (3), and the measuring mechanism (5) drives the volume regulating mechanism (7) to work synchronously, and the volume regulating mechanism (7) drives the screw (16) to rotate, and the screw (16) rotates to extrude and heat the fixed material, so that the material forms a gel and is extruded by the die head (9). At the same time as the extrusion, the traction machine works to pull the cable core at a uniform speed, and the circulating cooling mechanism is driven to work synchronously by the pressure regulating mechanism (8); S4: Then the length of the cable sheath is measured and recorded using an optical measuring instrument.

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