Waterproof low-voltage power cable and assembling device thereof

Abstract

The invention relates to the technical field of cable production, in particular to a waterproof low-voltage power cable and an assembling device thereof, which comprises a wire, waterproof insulation paste, a talcum powder layer and a sheath, according to the invention, the following problems in the cable production process in the prior art can be solved: in the cable production process, an insulating layer is in direct contact with a cable core, so that the difficulty of removing the insulating layer is increased; when the waterproof insulating layer is damaged, the cable cannot be normally used due to short circuit, and potential safety hazards are caused to organisms near the cable; according to the invention, a cable can be coated with waterproof insulating glue through the upper glue cylinder, so that the waterproof and insulating properties of the cable are improved; the glue can be cured through mutual cooperation of the heat absorption cylinder and the ultraviolet irradiation device, so that the smoothness of the glue surface is improved, and a good foundation is provided for subsequent sheath injection molding; and sheath raw materials can be stirred and controlled to move towards the forming cylinder through the spiral stirring frame, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, and particularly relates to a waterproof low-voltage power cable and its assembly device. Background Art

[0002] A cable is composed of one or several insulated wires, and is further wrapped with a tough outer layer made of metal or rubber; with the rapid development of modern industry and power systems, as an important carrier for power transmission and information transfer, cables are increasingly widely used; in terms of power transmission, cables are mainly used to transmit electric power of different voltage levels, including low-voltage, medium-voltage, high-voltage, and extra-high-voltage power, and cables with different characteristics can be produced by using different production processes and materials.

[0003] In the prior art, a large number of production methods and devices for cables have also been disclosed. For example, Chinese Patent No. CN118231055A discloses a production method and forming device for a waterproof cable, including a production rack. A cooling box and a pre-cooling pipe are fixedly installed at the top inside the production rack. A heating cylinder is fixedly inserted inside a vertical plate, and uniformly distributed heating rods are fixedly inserted inside the inner wall of the heating cylinder. A coating machine communicated with the bottom right end of the heating cylinder is fixedly installed at the top inside the production rack. A bearing rod is movably inserted inside the rotating sleeve, and the cable core is inserted through the inside of the bearing rod. When in use, the cable core is conveyed by a traction wheel to pass through the heating cylinder. The heating rods inside the heating cylinder are used to heat the insulating coating material, and the cable core is heated through the bearing rod. The coating machine is used to perform a coating process on the cable core in a preheated state to form a cable core with a waterproof insulating layer; subsequently, the cable core is cooled through the pre-cooling pipe and the cooling box, and finally a cooled waterproof cable is obtained.

[0004] However, there are still some deficiencies in the above prior art during actual use: 1. During the production of cables using the above prior art, the insulating layer will be in direct contact with the cable core, resulting in an increase in the difficulty of removing the insulating layer during subsequent cable maintenance and wiring.

[0005] 2. The cable produced by the above prior art has only one waterproof insulating layer. When the waterproof insulating layer is damaged during use, the cable will immediately lose its waterproof and insulating performance, resulting in the cable quickly short-circuiting and being unable to be used normally, and at the same time, it will also pose a safety hazard to the organisms near the cable.

[0006] Therefore, under the viewpoints stated above, there is still room for improvement in the existing production means of waterproof cables. Summary of the Invention

[0007] To solve the above problems, the present invention provides a waterproof low-voltage power cable and its assembly device, and adopts the following technical solutions to achieve: In the first aspect, a waterproof low-voltage power cable is provided, which includes a plurality of wires. The outer parts of the wires are sequentially coated with waterproof insulating glue, a talcum powder layer, and a sheath. The plurality of wires are wound into one by twisting. The outer wall of the wire is smeared with waterproof insulating glue, and the sheath is installed by injection molding on the outer wall of the waterproof insulating glue. A talcum powder layer for preventing mutual adhesion is arranged between the waterproof insulating glue and the sheath.

[0008] In the second aspect, a waterproof low-voltage power cable assembly device is provided. This assembly device is used to assemble a waterproof low-voltage power cable and includes a main body box placed horizontally. A through hole that penetrates the main body box and is used for threading the cable is provided on one side of the main body box along the cable traveling direction. A partition board, an isolation board, and a spacer board are sequentially installed on the main body box along the cable traveling direction. Limiting frames for limiting the cable and located on the outer wall of the cable are installed between the partition board and the isolation board and between the isolation board and the spacer board.

[0009] As a preferred technical solution of the present invention, a traction box is arranged in the middle on the side of the partition board away from the spacer board. Two working cylinders are rotatably installed between the side of the traction box away from the partition board and the inner wall of the main body box. A supply cylinder is rotatably arranged between the two working cylinders. An upper glue cylinder is installed on the common inner wall of the two working cylinders. A plurality of upper glue groups for smearing waterproof insulating glue and distributed in a circular pattern are arranged on the inner wall of the upper glue cylinder.

[0010] As a preferred technical solution of the present invention, a glue water tank for storing glue is installed at the upper end of the traction box. Transmission gears away from the supply cylinder are sleeved on the outer walls of the two working cylinders. A connecting shaft is rotatably penetrated through the side of the spacer board close to the partition board. A linkage shaft is rotatably installed between the side of the traction box away from the partition board and the inner wall of the main body box. Two linkage gears meshing with the transmission gears are sleeved on the outer wall of the linkage shaft. The outer wall of the connecting shaft and the outer wall of the linkage shaft are connected by a belt drive.

[0011] As a preferred technical solution of the present invention, two traction shafts symmetrically distributed along the height direction of the main body box are rotatably installed on the inner wall of the traction box. Driving rollers are sleeved on the outer walls of the two traction shafts. Two positioning shafts symmetrically distributed along the width direction of the main body box are rotatably installed on the inner wall of the traction box. Both of the two positioning shafts are located on the side of the traction box close to the partition board. Shaping rollers are sleeved on the outer walls of the two positioning shafts; An extension shaft is arranged at one end of the linkage shaft close to the traction box. A protruding gear is sleeved on the outer wall of the extension shaft. A lower shaft is rotatably installed on the inner wall of the traction box away from the partition board. A lower gear meshing with the protruding gear is sleeved on the outer wall of the lower shaft. A linkage bevel gear is sleeved on the outer wall of the lower shaft. A transmission bevel gear meshing with the linkage bevel gear is sleeved on the outer wall of the traction shaft perpendicular to the lower shaft. Traction gears meshing with each other are sleeved on the outer walls of the two traction shafts; An ultraviolet irradiation device for drying the waterproof insulating glue on the outer wall of the cable is installed on the inner bottom wall of the main body box, and the ultraviolet irradiation device is located between the partition board and the isolation board.

[0012] As a preferred technical solution of the present invention, a matching cylinder is rotatably installed between the isolation board and the spacer. Two limiting rings are rotatably sleeved on the outer wall of the matching cylinder and are respectively located on the opposite sides of the isolation board and the spacer. Two driving gears are sleeved on the outer wall of the matching cylinder and are respectively located on the opposite sides of the two limiting rings. A plurality of feeding plates are installed on the inner wall of the matching cylinder and are distributed in a circumferential manner along its axis. Two matching gears meshing with the two driving gears respectively are installed on the outer wall of the connecting shaft.

[0013] As a preferred technical solution of the present invention, two support plates parallel to the width direction of the main body box are symmetrically installed at the upper end of the main body box along its length direction. An extension plate flush with the upper end of the main body box is installed on one side of one support plate away from the other support plate. Two support rods symmetrically distributed along the width direction of the main body box are arranged at the lower end of the extension plate. A power motor is installed on the upper end of the extension plate through a motor seat. A transmission shaft is rotatably arranged between the two support plates.

[0014] As a preferred technical solution of the present invention, a spiral stirring frame for stirring plastic particles is arranged on the outer wall of the transmission shaft. An injection cylinder is installed between the two support plates. The inner wall of the injection cylinder is in sliding contact with the spiral stirring frame. A feeding cylinder for adding plastic particles is installed at one end of the injection cylinder close to the power motor. The axis of the feeding cylinder is perpendicular to the axis of the transmission shaft. The lower end of the feeding cylinder is communicated with the injection cylinder, and a feeding funnel is arranged at the upper end of the feeding cylinder.

[0015] As a preferred technical solution of the present invention, a square blanking cylinder is installed at one end of the injection cylinder away from the power motor. One end of the square blanking cylinder away from the injection cylinder is located inside the main body box. A heating cylinder is sleeved outside the injection cylinder and is located between the feeding cylinder and the square blanking cylinder. A plurality of arc-shaped heating plates are installed on the inner wall of the heating cylinder and are distributed in a circumferential manner between the heating cylinder and the injection cylinder.

[0016] As a preferred technical solution of the present invention, a plurality of fixing rods distributed in a circumferential manner are installed on one side of the spacer away from the power motor. A forming cylinder located outside the cable is jointly arranged at one ends of the plurality of fixing rods away from the spacer. One end of the forming cylinder away from the spacer is connected to the inner wall of the main body box, and an extrusion hole corresponding to the through hole is opened at one end of the forming cylinder away from the spacer. The lower end of the square blanking cylinder is communicated with the forming cylinder. In summary, the present application includes the following beneficial technical effects: 1. Through the mutual cooperation of the power motor, linkage shaft, and working cylinder, the present invention realizes the automatic application of waterproof insulating glue on the cable surface and the automatic conveying of the cable; the rotation of the application strip along the cable axis ensures the uniform application of the glue on the outer wall of the cable, improving the waterproof and insulating properties of the cable; the cooperation of the sliding roller and the shaping roller not only provides the driving force for the automatic movement of the cable but also shapes the waterproof insulating glue on the cable surface, removing the excess glue and increasing the smoothness of the glue surface, providing a good foundation for subsequent sheath injection molding.

[0017] 2. The present invention can quickly and effectively dry the waterproof insulating glue through the ultraviolet irradiation device, avoiding the problem of the mixing of talcum powder and undried waterproof insulating glue and ensuring the smooth progress of subsequent cable assembly; through the mutual cooperation of the heat absorption cylinder and the heat absorption fan, the present invention can effectively collect the excess heat generated during the heating process of the arc heating plate and perform secondary drying treatment on the waterproof insulating glue on the cable surface through the collected heat, further improving the drying effect of the waterproof insulating glue.

[0018] 3. The present invention uniformly heats the sheath raw material through multiple arc heating plates to ensure the full melting of the raw material; through the spiral stirring frame, not only can the sheath raw material be stirred, but also the sheath raw material can be controlled to gradually move towards the side of the square blanking cylinder during the stirring process, eliminating the need for additional transmission devices and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 FIG. is a schematic structural diagram of a low-voltage power cable in the present invention.

[0021] Figure 2 FIG. is a schematic structural diagram of a cable assembly device in the present invention.

[0022] Figure 3 FIG. is a schematic internal structural diagram of the main body box of the present invention.

[0023] Figure 4 FIG. is a schematic structural diagram of the traction box of the present invention.

[0024] Figure 5 FIG. is of the present invention Figure 4 partial enlarged view.

[0025] Figure 6 FIG. is a schematic structural diagram of the working cylinder and the glue application cylinder of the present invention.

[0026] Figure 7 FIG. is a schematic structural diagram of the matching cylinder of the present invention.

[0027] Figure 8It is a schematic structural diagram of the injection barrel of the present invention.

[0028] Figure 9 It is a schematic structural diagram of the forming barrel of the present invention.

[0029] Figure 10 It is a schematic structural diagram of the heat-absorbing barrel of the present invention.

[0030] In the figure, 1. wire; 2. waterproof insulating glue; 3. talcum powder layer; 4. sheath; 5. main body box; 51. partition board; 511. working barrel; 512. supply barrel; 513. support frame; 514. mounting strip; 515. glue application barrel; 516. glue application group; 517. clamping strip; 518. spreading strip; 519. feeding hole; 520. glue water tank; 521. square connecting barrel; 522. connecting pipe; 523. driving gear; 524. connecting shaft; 525. linkage shaft; 526. linkage gear; 52. isolation board; 53. spacer; 531. mating barrel; 532. limiting ring; 533. driving gear; 534. feeding plate; 535. mating gear; 54. limiting frame; 55. traction box; 551. traction shaft; 552. driving roller; 553. positioning shaft; 554. shaping roller; 555. extension shaft; 556. protruding gear; 557. lower shaft; 558. lower gear; 559. linkage bevel gear; 560. transmission bevel gear; 561. traction gear; 57. support plate; 571. extension plate; 572. support rod; 573. power motor; 574. transmission shaft; 575. spiral stirring frame; 576. injection barrel; 577. feeding barrel; 578. feeding funnel; 579. square blanking barrel; 580. heating barrel; 581. arc heating plate; 582. fixing rod; 583. forming barrel; 584. extrusion hole; 585. protection barrel; 586. connecting strip; 587. heat-absorbing barrel; 588. baffle; 589. heat-collecting hole; 590. heat-absorbing fan; 6. through hole; 7. ultraviolet irradiation device. Detailed implementation manners

[0031] The following combines the attached Figures 1-10 to describe the embodiments of the present invention in detail.

[0032] The embodiments of the present application disclose a waterproof low-voltage power cable and its assembly device. It should be noted that the present application is mainly applied in the assembly process of low-voltage cables. In terms of technical effects, it can perform waterproof and insulation treatment on the wires in the middle of the cable, improve the waterproof and insulation performance and service life of the cable; especially after applying waterproof insulating glue to the wires, it can quickly dry the waterproof insulating glue on the wire surface, avoid the contact between the undried waterproof insulating glue and talcum powder, and thus improve the waterproof and insulation effect of the waterproof insulating glue on the cable wires. Embodiment 1:

[0033] Reference Figure 1 As shown, a waterproof low-voltage power cable includes a plurality of wires 1. The outside of the wires 1 is sequentially coated with a waterproof insulating glue 2, a talcum powder layer 3, and a sheath 4. The plurality of wires 1 are wound into one by twisting. The outer wall of the wire 1 is coated with the waterproof insulating glue 2. The sheath 4 is installed on the outer wall of the waterproof insulating glue 2 by an injection molding process. A talcum powder layer 3 for preventing mutual adhesion is provided between the waterproof insulating glue 2 and the sheath 4.

[0034] In practical applications, the cable composed of the wire 1, the waterproof insulating glue 2, the talcum powder layer 3, and the sheath 4 can still maintain good electrical conductivity and transmission efficiency in water and other humid environments. In addition, the waterproof insulating glue used in the present invention can still maintain good flexibility after drying, ensuring that the waterproof insulating glue 2 can deform with the bending of the cable when the cable is bent, so that the dried waterproof insulating glue 2 will not break due to this, increasing the waterproof and insulating effect of the waterproof insulating glue 2 on the wire 1; the talcum powder layer 3 on the surface of the waterproof insulating glue 2 can prevent the device from sticking during the injection molding of the sheath 4, ensuring that the waterproof insulating glue 2 and the sheath 4 are in close contact and will not stick, preventing the waterproof insulating glue 2 from breaking due to excessive bending angle during the bending of the cable, which affects the waterproof and insulating effects of the waterproof insulating glue 2.

[0035] Reference Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in order to facilitate the assembly of the above-mentioned waterproof low-voltage power cable, the present application provides an assembly device. The assembly device includes a main body box 5 placed horizontally. A through hole 6 that penetrates the main body box 5 and is used for threading the cable is opened on one side of the main body box 5 along the cable traveling direction. A partition plate 51, an isolation plate 52, and a spacer plate 53 are sequentially installed on the main body box 5 along the cable traveling direction. Limit frames 54 for limiting the cable and located on the outer wall of the cable are installed between the partition plate 51 and the isolation plate 52 and between the isolation plate 52 and the spacer plate 53. The outer wall of the cable is in sliding contact with the limit frame 54.

[0036] Further, in this embodiment, a traction box 55 is provided in the middle of the side of the partition plate 51 away from the spacer plate 53. Two working cylinders 511 are rotatably installed between the side of the traction box 55 away from the partition plate 51 and the inner wall of the main body box 5. A supply cylinder 512 is rotatably arranged between the two working cylinders 511. A support frame 513 for supporting the supply cylinder 512 is installed between the supply cylinder 512 and the inner bottom wall of the main body box 5. A plurality of mounting strips 514 distributed in a circular pattern are jointly provided on the inner walls of the two working cylinders 511. A gluing cylinder 515 is jointly installed on the side of the plurality of mounting strips 514 close to the axis of the working cylinder 511. A plurality of gluing groups 516 distributed in a circular pattern are provided on the inner wall of the gluing cylinder 515. Each of the plurality of gluing groups 516 includes two clamping strips 517 installed on the inner wall of the gluing cylinder 515. A coating strip 518 parallel to the two clamping strips 517 of the same gluing group 516 is arranged between the two clamping strips 517. A plurality of feed holes 519 are formed in the inner wall of the gluing cylinder 515 at equal intervals along its axis and located between every two clamping strips 517.

[0037] Still further, in this embodiment, a glue storage tank 520 for storing glue is installed at the upper end of the traction box 55. A square connecting cylinder 521 communicating with the supply cylinder 512 is installed on the outer wall of the supply cylinder 512. A connecting pipe 522 communicating with the glue storage tank 520 is provided on the side of the glue storage tank 520 away from the partition plate 51. One end of the connecting pipe 522 away from the glue storage tank 520 is communicated with the square connecting cylinder 521. Transmission gears 523 on the side away from the supply cylinder 512 are respectively sleeved on the outer walls of the two working cylinders 511. A connecting shaft 524 is rotatably penetrated through one of the corners on the side of the spacer plate 53 close to the partition plate 51. One end of the connecting shaft 524 away from the spacer plate 53 extends to the outside after rotatably passing through the main body box 5. A linkage shaft 525 is rotatably installed between the side of the traction box 55 away from the partition plate 51 and the inner wall of the main body box 5. Two linkage gears 526 meshing with the transmission gears 523 are sleeved on the outer wall of the linkage shaft 525. The outer wall of the connecting shaft 524 and the outer wall of the linkage shaft 525 are connected by a belt drive.

[0038] Furthermore, in this embodiment, two traction shafts 551 symmetrically distributed along the height direction of the main body box 5 are rotatably installed on the inner wall of the traction box 55. Both of the two traction shafts 551 are located on the side of the traction box 55 away from the partition plate 51. Driving rollers 552 are sleeved on the outer walls of the two traction shafts 551. Two positioning shafts 553 symmetrically distributed along the width direction of the main body box 5 are rotatably installed on the inner wall of the traction box 55. Both of the two positioning shafts 553 are located on the side of the traction box 55 close to the partition plate 51. Shaping rollers 554 are sleeved on the outer walls of the two positioning shafts 553. The outer walls of the driving rollers 552 and the shaping rollers 554 are both arc-shaped concave surfaces that fit the outer wall of the cable. An extension shaft 555 is provided at one end of the linkage shaft 525 close to the traction box 55. A protruding gear 556 is sleeved on the outer wall of the extension shaft 555. A lower shaft 557 is rotatably installed on the inner side wall of the traction box 55 away from the partition plate 51. The axis of the lower shaft 557 is perpendicular to the axis of the traction shaft 551 on the side close to the linkage shaft 525. A lower gear 558 meshing with the protruding gear 556 is sleeved on the outer wall of the lower shaft 557. A linkage bevel gear 559 is sleeved on the outer wall of the lower shaft 557 on the side of the lower gear 558 close to the traction shaft 551. A transmission bevel gear 560 meshing with the linkage bevel gear 559 is sleeved on the outer wall of the traction shaft 551 perpendicular to the lower shaft 557. Traction gears 561 meshing with each other are sleeved on the outer walls of the two traction shafts 551. An ultraviolet irradiation device 7 for drying the glue is installed on the inner bottom wall of the main body box 5. The ultraviolet irradiation device 7 is located between the partition plate 51 and the isolation plate 52.

[0039] It should be noted that the glue tank 520 can continuously supply glue to the supply cylinder 512, preventing the working cylinder 511 from being affected by the untimely glue supply and thus affecting the glue application effect on the surface of the cable. A rotating connection ring (not shown in the figure) is provided between the working cylinder 511 and the supply cylinder 512, and sealing gaskets (not shown in the figure) are provided between the connection ring and both the working cylinder 511 and the supply cylinder 512. The mutual cooperation of the connection ring and the sealing gasket can ensure that the rotation of the two working cylinders 511 will not affect the glue supply of the supply cylinder 512, effectively avoiding glue overflow and preventing interference from the relative rotation between the working cylinder 511 and the supply cylinder 512, ensuring the continuity of the cable glue application work. In addition, the ultraviolet irradiation device 7 used in this embodiment is a prior art and will not be elaborated here.

[0040] It should be further noted that the cable can be limited by the limiting frame 54 to ensure that the cable will not shift during the movement in the main body box 5. Especially when assembling a new cable, it has a guiding effect, avoiding the cable being unable to pass through the through hole 6, thus ensuring that the cable can successfully complete the assembly work.

[0041] In practical applications, first, the stranded cable is inserted into the main body box 5 through the through hole 6 on the side of the partition board 51 close to the main body box 5. At the same time, the connecting shaft 524 controls the linkage shaft 525 to rotate through belt drive. The linkage shaft 525 controls the two working cylinders 511 to rotate through the linkage gear 526 and the transmission gear 523. The two working cylinders 511 drive the glue application cylinder 515 to rotate through a plurality of mounting strips 514. The glue application cylinder 515 drives the coating strip 518 to rotate along the axis of the cable. The coating strip 518 can apply glue to the outer wall of the cable while rotating, so as to realize the glue application work on the outer wall of the cable, and make the glue applied to the outer wall of the wire 1 form a waterproof insulating glue 2. The waterproof insulating glue 2 can enable the cable to still maintain a certain waterproof performance and insulating performance when the sheath 4 is damaged, increasing the service life and waterproof insulating performance of the cable.

[0042] In addition, while the linkage shaft 525 is rotating, it can drive the extension shaft 555 to rotate synchronously. The extension shaft 555 drives the protruding gear 556 to rotate. The protruding gear 556 drives the lower gear 558 and the lower shaft 557 to rotate. The lower shaft 557 controls the transmission bevel gear 560 to rotate through the linkage bevel gear 559. The transmission bevel gear 560 drives one of the traction shafts 551 and the traction gear 561 to rotate. The traction shaft 551 controls the other traction shaft 551 to rotate synchronously through two meshing traction gears 561. The two traction shafts 551 control the two driving rollers 552 to rotate. When the cable comes into contact with the two driving rollers 552 and enters between the two driving rollers 552, the two driving rollers 552 can drive the cable to move along the through hole 6, so as to perform traction transmission on the cable. At this time, there is no need for manual application of additional thrust to the cable. The two driving rollers 552 provide driving force for the cable, so as to ensure that the cable can automatically move along the through hole 6, reducing manpower and cost. After the cable passes through the two driving rollers 552, it comes into contact with the two shaping rollers 554 and continues to move along the through hole 6. In addition, through the two driving rollers 552 and the two shaping rollers 554, the glue on the surface of the cable can be shaped, and the excess glue on the surface of the cable can also be removed, increasing the smoothness of the waterproof insulating glue 2 on the surface of the cable, avoiding bulges on the surface of the cable during the subsequent injection molding of the sheath 4 of the cable, and increasing the smoothness of the cable sheath 4 and the cable assembly effect.

[0043] In addition, after the cable passes through the partition board 51, the ultraviolet irradiation device 7 installed between the partition board 51 and the isolation board 52 can dry the glue, so that the glue is cured and not easily adhered and dripped, avoiding the mixing of the talcum powder layer 3 and the glue when the talcum powder layer 3 is processed on the surface of the cable due to incomplete drying of the glue, avoiding affecting the waterproof insulating effect of the waterproof insulating glue 2 and the isolation effect of the talcum powder layer 3, and increasing the cable assembly effect.

[0044] Refer toFigure 7 As shown, in order to enable the talcum powder layer 3 to smoothly adhere to the cable surface and prevent the sheath 4 from adhering to the cable conductor 1; based on this, in this embodiment, a mating cylinder 531 is rotatably installed between the partition plate 52 and the spacer plate 53. Two limiting rings 532 are rotatably sleeved on the outer wall of the mating cylinder 531 and are respectively located on the opposite sides of the partition plate 52 and the spacer plate 53. Two driving gears 533 are sleeved on the outer wall of the mating cylinder 531 and are respectively located on the opposite sides of the two limiting rings 532. A plurality of material deflecting plates 534 are installed on the inner wall of the mating cylinder 531 and are distributed in a circumferential manner along its axis. Two mating gears 535 are installed on the outer wall of the connecting shaft 524 and are respectively meshed with the two driving gears 533.

[0045] It should be noted that the two limiting rings 532 can limit the mating cylinder 531 to ensure that the mating cylinder 531 can rotate smoothly; in addition, the mating cylinder 531 contains talcum powder for adhering to the cable surface, and a feed check valve is provided at any position on the outer wall of the mating cylinder 531 for replenishing talcum powder, and the feed check valve can effectively prevent the talcum powder inside the mating cylinder 531 from overflowing; the height of the talcum powder layer 3 needs to be kept not lower than the axis of the cable to ensure that the talcum powder layer 3 on the cable surface can adhere evenly.

[0046] In practical applications, when the cable passes between the partition plate 52 and the spacer plate 53, the connecting shaft 524 drives the two mating gears 535 to rotate. The two mating gears 535 control the rotation of the mating cylinder 531 through the two driving gears 533 meshed therewith. The mating cylinder 531 drives the material deflecting plates 534 to rotate. The material deflecting plates 534 can bring the talcum powder layer 3 inside the mating cylinder 531 to the upper part while rotating. When the material deflecting plates 534 rotate to the highest position, the talcum powder layer 3 will fall downward, increasing the flow of the talcum powder layer 3 inside the mating cylinder 531 and enhancing the adhesion effect of the talcum powder layer 3.

[0047] Refer to Figure 2 、 Figure 8 and Figure 9As shown in the figure, in order to realize the injection molding of the outer wall sheath of the cable; based on this, in this embodiment, two support plates 57 parallel to the width direction of the main body box 5 are symmetrically installed along the length direction at the upper end of the main body box 5. An extension plate 571 flush with the upper end of the main body box 5 is installed on one side of one support plate 57 away from the other support plate 57. Two support rods 572 symmetrically distributed along the width direction of the main body box 5 are arranged at the lower end of the extension plate 571. A triangular shape is formed among the support rods 572, the extension plate 571 and the main body box 5. A power motor 573 is installed at the upper end of the extension plate 571 through a motor base. A transmission shaft 574 is rotatably arranged between the two support plates 57, and the connecting shaft 524 is connected to the transmission shaft 574 through a belt drive. One end of the transmission shaft 574 close to the power motor 573 passes through the support plate 57 and is connected to the output shaft of the power motor 573; a spiral stirring frame 575 for stirring the raw material of the sheath 4 is arranged on the outer wall of the transmission shaft 574. An injection cylinder 576 is installed between the two support plates 57. The inner wall of the injection cylinder 576 is in sliding contact with the spiral stirring frame 575. A feeding cylinder 577 for adding the raw material of the sheath 4 is installed at one end of the injection cylinder 576 close to the power motor 573. The axis of the feeding cylinder 577 is perpendicular to the axis of the transmission shaft 574. The lower end of the feeding cylinder 577 is communicated with the injection cylinder 576, and a feeding funnel 578 is arranged at the upper end of the feeding cylinder 577.

[0048] Furthermore, in this embodiment, a square blanking cylinder 579 parallel to the axis of the feeding cylinder 577 is installed at one end of the injection cylinder 576 away from the power motor 573. One end of the square blanking cylinder 579 away from the injection cylinder 576 is located inside the main body box 5. A heating cylinder 580 is sleeved outside the injection cylinder 576 and is located between the feeding cylinder 577 and the square blanking cylinder 579. A plurality of arc-shaped heating plates 581 distributed in a circular shape are installed on the inner wall of the heating cylinder 580 and are located between the heating cylinder 580 and the injection cylinder 576; a plurality of fixing rods 582 distributed in a circular shape are installed on one side of the spacer plate 53 away from the power motor 573. A forming cylinder 583 located outside the cable is jointly arranged at one end of the plurality of fixing rods 582 away from the spacer plate 53. One end of the forming cylinder 583 away from the spacer plate 53 is connected to the inner wall of the main body box 5, and an extrusion hole 584 corresponding to the through hole 6 is opened at one end of the forming cylinder 583 away from the spacer plate 53. The lower end of the square blanking cylinder 579 is communicated with the forming cylinder 583.

[0049] It should be noted that the injection cylinder 576 and the square blanking cylinder 579 are both made of metal with a certain heat absorption performance, which reduces the possibility of the solidification of the heated raw material of the sheath 4 during the downward movement, so as to ensure that the heated raw material of the sheath 4 can maintain good plasticity before the injection molding work; the plurality of arc-shaped heating plates 581 on the outer wall of the injection cylinder 576 can fully heat the raw material of the sheath 4 in the injection cylinder 576.

[0050] It should be further noted that a cooling water tank (not shown in the figure) for cooling the cable is installed on the side of the main body box 5 away from the power motor 573. Through the cooling water tank, the sheath 4 formed on the surface of the cable can be quickly cooled, avoiding deformation of the sheath 4 in subsequent processes, thereby affecting the performance and service life of the cable.

[0051] In practical applications, first, the raw material of the sheath 4 is poured into the feeding funnel 578. The raw material of the sheath 4 enters the interior of the injection barrel 576 through the feeding cylinder 577. Subsequently, the power motor 573 is started. The power motor 573 drives the transmission shaft 574 to rotate, and the transmission shaft 574 controls the spiral stirring frame 575 to rotate. Through the rotation of the spiral stirring frame 575, the raw material of the sheath 4 in the injection barrel 576 can be fully stirred, and while stirring the raw material of the sheath 4, it can control the raw material of the sheath 4 to be conveyed towards the side close to the square blanking barrel 579, eliminating the need for an additional conveying device and reducing costs. At the same time, multiple arc-shaped heating plates 581 are started. Through the multiple arc-shaped heating plates 581, the raw material of the sheath 4 in the injection barrel 576 can be heated. Stirring the raw material of the sheath 4 by the spiral stirring frame 575 while heating can make the raw material of the sheath 4 heated more evenly, ensuring that the raw material of the sheath 4 can be fully melted before injection, thereby guaranteeing the injection effect of the cable sheath 4.

[0052] The raw material of the sheath 4 after heating moves towards the side close to the square blanking barrel 579 under the action of the spiral stirring frame 575. When it reaches above the square blanking barrel 579, the raw material of the sheath 4 flows downward into the forming barrel 583 and wraps around the surface of the cable. Subsequently, during the process of the cable moving towards the side close to the cooling water tank, the raw material of the sheath 4 is extruded through the extrusion holes 584 under the action of extrusion pressure. Finally, the cable is cooled by the cooling water tank, and thus the injection molding of the sheath on the outer wall of the cable is completed. Embodiment 2:

[0053] Refer to Figure 10As shown, on the basis of the first embodiment, in order to accelerate the drying process of the glue and enhance the drying effect of the glue; based on this, in this embodiment, a protective cylinder 585 corresponding to the position of the heating cylinder 580 is sleeved outside the heating cylinder 580. A plurality of connecting bars 586 distributed in a circular pattern are arranged on the inner wall of the protective cylinder 585. On the side of the plurality of connecting bars 586 close to the heating cylinder 580, a heat absorption cylinder 587 sleeved outside the heating cylinder 580 is commonly installed. Along the width direction of the upper end of the main body box 5, two baffles 588 are symmetrically installed. The side of the baffle 588 away from the main body box 5 is connected to the outer wall of the protective cylinder 585, and the protective cylinder 585 is a semi-circular structural cylinder. The protective cylinder 585 and the two baffles 588 form a U-shaped structure with an opening downward. A heat collection hole 589 located between the partition plate 51 and the isolation plate 52 is opened on the inner top wall of the main body box 5. A heat absorption fan 590 for collecting the excess heat energy in the protective cylinder 585 is arranged on the inner wall of the heat collection hole 589.

[0054] In practical applications, when the arc-shaped heating plate 581 heats the raw material of the sheath 4, the heat absorption cylinder 587 can collect the excess heat generated when the arc-shaped heating plate 581 heats the raw material of the sheath 4. Subsequently, the heat absorption fan 590 conveys the heat collected by the heat absorption cylinder 587 between the isolation plate 52 and the spacer plate 53 to dry the glue on the surface of the cable, further enhancing the drying effect of the glue, ensuring that the waterproof insulating glue 2 can be completely cured before the talcum powder layer 3 is processed, and increasing the processing effect of the talcum powder layer 3.

[0055] During operation: Step 1: First, insert the stranded cable into the main body box 5 through the through hole 6 on the side of the main body box 5 close to the partition plate 51. At the same time, the connecting shaft 524 controls the rotation of the linkage shaft 525 through belt drive. The linkage shaft 525 controls the rotation of the two working cylinders 511 through the linkage gear 526 and the transmission gear 523. The two working cylinders 511 drive the glue application cylinder 515 to rotate through a plurality of mounting bars 514. The glue application cylinder 515 drives the coating strip 518 to rotate along the axis of the cable. While rotating, the coating strip 518 can apply the glue to the outer wall of the cable, thereby realizing the glue application work on the outer wall of the cable. The waterproof insulating glue 2 applied to the outer wall of the cable can enable the cable to still maintain certain waterproof performance and insulating performance when the sheath 4 is damaged.

[0056] In addition, while the linkage shaft 525 rotates, it can drive the extension shaft 555 to rotate synchronously. The extension shaft 555 drives the protruding gear 556 to rotate, and the protruding gear 556 drives the lower gear 558 and the lower shaft 557 to rotate. The lower shaft 557 controls the transmission bevel gear 560 to rotate through the linkage bevel gear 559. The transmission bevel gear 560 drives one of the traction shafts 551 and the traction gear 561 to rotate. The traction shaft 551 controls the other traction shaft 551 to rotate synchronously through two meshing traction gears 561. The two traction shafts 551 control the two drive drums 552 to rotate. When the cable contacts the two drive drums 552 and enters between the two drive drums 552, the two drive drums 552 can drive the cable to move along the through hole 6, thereby performing traction transmission on the cable. At this time, there is no need for manual application of additional thrust to the cable. The two drive drums 552 provide driving force for the cable to ensure that the cable can automatically move along the through hole 6; after passing through the two drive drums 552, the cable contacts the two shaping drums 554 and continues to move along the through hole 6; in addition, the two drive drums 552 and the two shaping drums 554 can shape the glue on the surface of the cable and also remove the excess glue on the surface of the cable, increasing the smoothness of the waterproof insulating glue 2 on the surface of the cable and avoiding bulges on the surface of the cable during the subsequent injection molding of the cable sheath 4.

[0057] Step 2: After the cable passes through the partition plate 51, the ultraviolet irradiation device 7 installed between the partition plate 51 and the isolation plate 52 can dry the glue, making the glue solidify and not easily adhere or drip, avoiding the mixing of the talcum powder layer 3 and the glue due to incomplete drying of the glue during the subsequent treatment of the talcum powder layer 3 on the surface of the cable.

[0058] Step 3: During the process of the cable passing between the isolation plate 52 and the spacer plate 53, the connecting shaft 524 drives the two mating gears 535 to rotate. The two mating gears 535 control the mating cylinder 531 to rotate through the two driving gears 533 meshing with them. The mating cylinder 531 drives the baffle plate 534 to rotate. While rotating, the baffle plate 534 can bring the talcum powder layer 3 inside the mating cylinder 531 to the upper part. When the baffle plate 534 rotates to the highest position, the talcum powder layer 3 will fall downward, increasing the flow of the talcum powder layer 3 inside the mating cylinder 531.

[0059] Step 4: Pour the raw material of the sheath 4 into the feeding funnel 578. After passing through the feeding cylinder 577, the raw material of the sheath 4 enters the interior of the injection cylinder 576. Subsequently, start the power motor 573. The power motor 573 drives the transmission shaft 574 to rotate, and the transmission shaft 574 controls the spiral stirring frame 575 to rotate. Through the rotation of the spiral stirring frame 575, the raw material of the sheath 4 in the injection cylinder 576 can be fully stirred, and while stirring the raw material of the sheath 4, it can control the raw material of the sheath 4 to be conveyed towards the side close to the square blanking cylinder 579. At the same time, start multiple arc-shaped heating plates 581. Through the multiple arc-shaped heating plates 581, the raw material of the sheath 4 inside the injection cylinder 576 can be heated. While heating, stirring the raw material of the sheath 4 through the spiral stirring frame 575 can make the raw material of the sheath 4 heated more evenly, ensuring that the raw material of the sheath 4 can be fully melted before injection molding.

[0060] The raw material of the sheath 4 after heating moves towards the side close to the square blanking cylinder 579 under the action of the spiral stirring frame 575. When it reaches above the square blanking cylinder 579, the raw material of the sheath 4 flows downward into the forming cylinder 583 and wraps around the surface of the cable. Subsequently, during the process of the cable moving towards the side close to the cooling water tank, the raw material of the sheath 4 is extruded through the extrusion holes 584 under the action of the extrusion pressure. Finally, the cable is cooled by the cooling water tank to complete the injection molding of the sheath on the outer wall of the cable.

[0061] Step 5: When the arc-shaped heating plates 581 are heating the raw material of the sheath 4, the heat absorption cylinder 587 can collect the excess heat generated when the arc-shaped heating plates 581 are heating the raw material of the sheath 4. Subsequently, the heat absorption fan 590 transports the heat collected by the heat absorption cylinder 587 between the isolation plate 52 and the spacer plate 53 to dry the glue on the surface of the cable, further enhancing the drying effect of the glue and ensuring that the glue can be completely cured before the treatment of the talcum powder layer 3.

[0062] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0063] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof low-voltage power cable assembly device, used for assembling waterproof low-voltage power cables, characterized in that: The waterproof low-voltage power cable comprises a plurality of conductors (1), the outer surfaces of the conductors (1) being coated with waterproof insulating glue (2), a talcum powder layer (3) and a sheath (4) in sequence, the plurality of conductors (1) being twisted into one conductor by twisting, the outer wall of the conductor (1) being coated with waterproof insulating glue (2), the outer wall of the waterproof insulating glue (2) being provided with a sheath (4) by injection molding, and a talcum powder layer (3) being provided between the waterproof insulating glue (2) and the sheath (4) for preventing mutual adhesion; The waterproof low-voltage power cable assembly device comprises a main body box (5) placed horizontally, a through hole (6) penetrating the main body box (5) and used for passing the cable is opened on one side of the main body box (5) along the direction of cable travel, a partition plate (51), an isolation plate (52) and a spacer plate (53) are sequentially installed on the main body box (5) along the direction of cable travel, and a limiting frame (54) for limiting the position of the cable and located on the outer wall of the cable is installed between the partition plate (51) and the isolation plate (52) and between the isolation plate (52) and the spacer plate (53), wherein: A working cylinder (511) is installed on the side of the partition plate (51) away from the partition plate (53) through a traction box (55); a gluing group (516) for applying waterproof insulating glue (2) to the outer wall of the conductor (1) is provided on the inner wall of the working cylinder (511); a matching cylinder (531) is rotatably installed between the isolation plate (52) and the partition plate (53); a material-moving plate (534) for moving talcum powder to the outer wall of the conductor (1) is installed on the inner wall of the matching cylinder (531); and an injection cylinder (576) for applying a sheath (4) on the outer wall of the waterproof insulating glue (2) is installed on the upper end of the main body box (5) through a support plate (57).

2. A waterproof low-voltage power cable assembly device according to claim 1, characterized in that: A traction box (55) is arranged in the middle of a side of the partition plate (51) away from the partition plate (53); two working cylinders (511) are rotatably mounted between the side of the traction box (55) away from the partition plate (51) and the inner wall of the main box (5); a supply cylinder (512) is rotatably mounted between the two working cylinders (511); a glue cylinder (515) is commonly mounted on the inner walls of the two working cylinders (511); and a plurality of glue groups (516) distributed in a circumference and used for applying waterproof insulating glue (2) are arranged on the inner wall of the glue cylinder (515).

3. A waterproof low-voltage power cable assembly device according to claim 2, characterized in that: A glue box (520) for storing glue is installed at the upper end of the traction box (55); the outer walls of the two working cylinders (511) are sleeved with a transmission gear (523) on a side away from the supply cylinder (512); a connecting shaft (524) is rotatably penetrated through the side of the partition plate (53) close to the partition plate (51); a linkage shaft (525) is rotatably installed between the side of the traction box (55) away from the partition plate (51) and the inner wall of the main box (5); two linkage gears (526) meshing with the transmission gear (523) are sleeved on the outer wall of the linkage shaft (525); and the outer wall of the connecting shaft (524) and the outer wall of the linkage shaft (525) are connected via a belt drive.

4. A waterproof low-voltage power cable assembly device according to claim 3, characterized in that: The inner wall of the traction box (55) is rotatably mounted with two traction shafts (551) symmetrically distributed along the height direction of the main box (5), and the outer walls of the two traction shafts (551) are sleeved with driving rollers (552); the inner wall of the traction box (55) is rotatably mounted with two positioning shafts (553) symmetrically distributed along the width direction of the main box (5), and the two positioning shafts (553) are both located on a side of the traction box (55) close to the partition plate (51), and the outer walls of the two positioning shafts (553) are sleeved with shaping rollers (554); An extension shaft (555) is provided at one end of the linkage shaft (525) close to the traction box (55), and a protruding gear (556) is sleeved on the outer wall of the extension shaft (555). A lower shaft (557) is rotatably mounted on the inner wall of the traction box (55) away from the partition plate (51), and a lower gear (558) meshing with the protruding gear (556) is sleeved on the outer wall of the lower shaft (557). A linkage bevel gear (559) is sleeved on the outer wall of the lower shaft (557). A traction shaft (551) perpendicular to the lower shaft (557) is sleeved on the outer wall of a transmission bevel gear (560) meshing with the linkage bevel gear (559). The outer walls of the two traction shafts (551) are sleeved on traction gears (561) meshing with each other. An ultraviolet irradiation device (7) for drying the waterproof insulating glue on the outer wall of the cable is installed on the inner bottom wall of the main body box (5), and the ultraviolet irradiation device (7) is located between the partition plate (51) and the isolation plate (52).

5. The waterproof low-voltage power cable assembly device according to claim 3, characterized in that: The outer wall of the matching cylinder (531) is rotatably sleeved with two limit rings (532) respectively located on opposite sides of the isolation plate (52) and the spacing plate (53); the outer wall of the matching cylinder (531) is sleeved with two driving gears (533) respectively located on opposite sides of the two limit rings (532); the inner wall of the matching cylinder (531) is mounted with a plurality of material shifting plates (534) distributed in a circle along its axis; and the outer wall of the connecting shaft (524) is mounted with two matching gears (535) respectively meshing with the two driving gears (533).

6. A waterproof low-voltage power cable assembly device according to claim 1, characterized in that: Two support plates (57) are symmetrically mounted on the upper end of the main box (5) along its length direction and are parallel to the width direction of the main box (5); an extension plate (571) flush with the upper end of the main box (5) is mounted on one side of one of the support plates (57) away from the other support plate (57); two support rods (572) symmetrically distributed along the width direction of the main box (5) are mounted on the lower end of the extension plate (571); a power motor (573) is mounted on the upper end of the extension plate (571) via a motor seat; and a transmission shaft (574) is rotatably mounted between the two support plates (57).

7. A waterproof low-voltage power cable assembly device according to claim 6, characterized in that: The outer wall of the transmission shaft (574) is provided with a spiral stirring frame (575) for stirring the plastic particles. An injection molding cylinder (576) is installed between the two support plates (57). The inner wall of the injection molding cylinder (576) is in sliding contact with the spiral stirring frame (575). A feeding cylinder (577) for adding plastic particles is installed at one end of the injection molding cylinder (576) close to the power motor (573). The axis of the feeding cylinder (577) is perpendicular to the axis of the transmission shaft (574). The lower end of the feeding cylinder (577) is connected to the injection molding cylinder (576). The upper end of the feeding cylinder (577) is provided with a feeding funnel (578).

8. A waterproof low-voltage power cable assembly device according to claim 7, characterized in that: A square discharge barrel (579) is installed at one end of the injection barrel (576) away from the power motor (573); one end of the square discharge barrel (579) away from the injection barrel (576) is located inside the main box (5); a heating barrel (580) located between the feeding barrel (577) and the square discharge barrel (579) is sleeved on the outside of the injection barrel (576); a plurality of arc-shaped heating plates (581) located between the heating barrel (580) and the injection barrel (576) and distributed in a circular pattern are installed on the inner wall of the heating barrel (580).

9. A waterproof low-voltage power cable assembly device according to claim 8, characterized in that: A plurality of fixing rods (582) distributed in a circumferential pattern are installed on one side of the partition plate (53) away from the power motor (573); a forming cylinder (583) located outside the cable is provided at one end of the plurality of fixing rods (582) away from the partition plate (53); an end of the forming cylinder (583) away from the partition plate (53) is connected to the inner wall of the main box (5); an extrusion hole (584) corresponding to the through hole (6) is provided at one end of the forming cylinder (583) away from the partition plate (53); and a lower end of the square discharge cylinder (579) is connected to the forming cylinder (583).

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