Cable insulation layer wrapping device

Abstract

The utility model discloses a cable insulation layer wrapping device, which comprises a shell, a driving assembly and a feeding assembly, and is characterized in that the shell is rotatably arranged on a support through a support ring, and one end of the shell is communicated with an extrusion head; the driving assembly is connected with the shell; a containing cavity is formed in the shell, and the feeding assembly is arranged in the containing cavity. The feeding assembly comprises a rotating cylinder, a spiral conveying blade and a transmission assembly, the shell comprises an inner cylinder, an outer cylinder and a fixing plate, one end of the inner cylinder and one end of the outer cylinder are closed through the fixing plate, the other end of the inner cylinder and the other end of the outer cylinder are open, a convex ring is arranged on the side wall of the inner cylinder, the inner cylinder is sleeved with the rotating cylinder, and the two ends of the rotating cylinder are rotationally connected with the fixing plate and the convex ring respectively; the spiral conveying blade is arranged on the rotary drum; the transmission assembly is connected with the rotary drum. Therefore, the shell and the extrusion head are driven to rotate, so that the insulating layer is uniformly distributed on the inner core, the non-uniform distribution of the insulating layer caused by flowing deviation of the insulating layer is avoided, and the quality of the cable is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing, in particular to a cable insulation layer wrapping device. Background Art

[0002] The insulation layer is a layer of insulating material wrapped around the outer wall of the inner core. Its main function is to isolate the conductor from the external environment to prevent current leakage or short circuit. The insulation layer is generally made of materials such as polyethylene, polyvinyl chloride and rubber, and has good insulation performance and voltage resistance. At present, the commonly used method of wrapping the insulation layer is to extrude the molten insulation layer material onto the inner core through an extruder. The solidified insulation material will be tightly wrapped around the outer wall of the inner core to form an insulation layer.

[0003] However, during the insulation wrapping process, gravity often causes the insulation layer to flow and deflect before it is completely cooled and solidified, resulting in a difference in thickness between the top and bottom of the insulation layer, with the top becoming thinner and the bottom becoming thicker, which affects the cable quality and is not conducive to production. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, one purpose of the utility model is to propose a cable insulation layer wrapping device, which drives the shell and the extrusion head to rotate so that the insulation layer is evenly distributed on the inner core, thereby avoiding uneven distribution of the insulation layer caused by flow deviation of the insulation layer, thereby improving the quality of the cable.

[0006] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a cable insulation layer wrapping device, comprising a shell, a driving assembly and a feeding assembly, wherein the shell is rotatably arranged on a support through a supporting ring, and one end of the shell is connected to an extrusion head; a feeding pipe is connected to the shell; the driving assembly is arranged on the support, and the driving assembly is connected to the shell; a containing cavity is arranged inside the shell, and the feeding assembly is arranged inside the containing cavity; the feeding assembly comprises a rotating drum, a spiral conveying blade and a transmission assembly, wherein the shell comprises an inner cylinder, an outer cylinder and a fixed plate, one end of the inner cylinder and the outer cylinder are closed by the fixed plate, and the other end of the inner cylinder and the outer cylinder are open, a convex ring is arranged on the side wall of the inner cylinder, the rotating drum is sleeved on the inner cylinder, and the two ends of the rotating drum are rotatably connected to the fixed plate and the convex ring respectively; the spiral conveying blade is arranged on the rotating drum; the transmission assembly is mounted on the fixed plate, and the transmission assembly is connected to the rotating drum.

[0007] The cable insulation layer wrapping device of the utility model drives the housing and the extrusion head to rotate so that the insulation layer is evenly distributed on the inner core, thereby avoiding uneven distribution of the insulation layer caused by flow deviation of the insulation layer, thereby improving the quality of the cable.

[0008] In addition, the cable insulation layer wrapping device proposed in the application may also have the following additional technical features:

[0009] Specifically, the driving assembly includes a motor, a first transmission shaft, a first gear and a first gear ring, wherein the motor is mounted on the support; the first transmission shaft is connected to the output end of the motor; the first gear is arranged on the first transmission shaft; the first gear ring is arranged on the outer wall of the outer cylinder, and the first gear ring is meshed with the first gear.

[0010] Specifically, the transmission assembly includes a second transmission shaft, two second gears, a second gear ring and a third gear ring, wherein the second transmission shaft is arranged through the fixed plate; the two second gears are arranged on the second transmission shaft; the second gear is arranged on the second transmission shaft; the second gear ring is arranged on the outer wall of the rotating drum, and the second gear ring is meshed and connected with one of the second gears; a support plate is provided on the outside of the shell, the third gear ring is arranged on the support plate, and the third gear ring is meshed and connected with another second gear.

[0011] Specifically, a plurality of grooves are arranged on the arc-shaped concave surface of the inner cylinder, and a ball is arranged inside each of the grooves.

[0012] Specifically, the extrusion head is sleeved on the outside of the cable, and one end of the extrusion head away from the outer cylinder is a truncated cone structure.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of a cable insulation layer wrapping device according to an embodiment of the utility model;

[0016] Figure 2 A cross-sectional view of a cable insulation layer wrapping device according to an embodiment of the utility model;

[0017] Figure 3 For this utility model Figure 2Schematic diagram of the enlarged structure of area A in the middle;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of area B in the middle;

[0019] Figure 5 This is a schematic structural diagram of a cable insulation layer wrapping device according to another embodiment of the utility model.

[0020] As shown in the figure: 1. Shell; 2. Drive assembly; 3. Feed assembly; 4. Convex ring; 5. Support plate; 6. Extruder head; 7. Support ring; 8. Accommodating cavity; 9. Ball; 10. Support; 11. Feed pipe; 12. Groove; 13. Inner cylinder; 14. Outer cylinder; 15. Fixed plate; 20. Motor; 21. First transmission shaft; 22. First gear; 23. First gear ring; 30. Rotating drum; 31. Spiral conveying blade; 32. Transmission assembly; 321. Second transmission shaft; 322. Second gear; 323. Second gear ring; 324. Third gear ring. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0022] The cable insulation layer wrapping device according to the embodiment of the utility model is described below with reference to the accompanying drawings.

[0023] like Figures 1 to 5 As shown, the cable insulation layer wrapping device of the embodiment of the utility model may include a shell 1, a driving component 2 and a feeding component 3.

[0024] The shell 1 is rotatably arranged on the support 10 through the support ring 7, and one end of the shell 1 is connected to the extrusion head 6, the shell 1 is connected to the feed pipe 11, the drive component 2 is arranged on the support 10, and the drive component 2 is connected to the shell 1.

[0025] It should be noted that the feed pipe 11 described in this embodiment is connected to the external insulating material (molten fluid), and the insulating layer material can be transported to the inside of the shell 1 through a screw conveyor.

[0026] Furthermore, the extrusion head 6 is arranged at one end away from the feed pipe 11 , and the inner core passes through the extrusion head 6 , so that the molten insulating material can be wrapped around the outside of the inner core through the extrusion head 6 .

[0027] In the embodiment of the present application, the entire shell 1 can be driven to rotate slowly by the driving assembly 2 to avoid the flow deviation of the insulation layer caused by gravity, thereby ensuring that the insulation layer is evenly wrapped on the inner core.

[0028] A accommodating cavity 8 is provided inside the shell 1, and the feeding assembly 3 is arranged inside the accommodating cavity 8. The feeding assembly 3 may include a rotating drum 30, a spiral conveying blade 31 and a transmission assembly 32, wherein the shell 1 may include an inner drum 13, an outer drum 14 and a fixed plate 15, one end of the inner drum 13 and the outer drum 14 are closed by the fixed plate 15, and the other end of the inner drum 13 and the outer drum 14 are open, a convex ring 4 is provided on the side wall of the inner drum 13, the rotating drum 30 is sleeved on the inner drum 13, and the two ends of the rotating drum 30 are rotatably connected with the fixed plate 15 and the convex ring 4 respectively, the spiral conveying blade 31 is arranged on the rotating drum 30, the transmission assembly 32 is installed on the fixed plate 15, and the transmission assembly 32 is connected to the rotating drum 30.

[0029] It should be noted that the inner cylinder 13 , the outer cylinder 14 and the inner core of the cable described in this embodiment are coaxially arranged, the inner core penetrates the inner cylinder 13 , and the inner cylinder 13 , the outer cylinder 14 and the fixing plate 15 form a accommodating cavity 8 .

[0030] Furthermore, the transmission assembly 32 described in the above embodiment is used to drive the drum 30 to rotate, and drive the spiral conveying blade 31 to rotate, so as to move the insulating material inside the accommodating cavity 8 toward the extrusion head 6 .

[0031] It can be understood that in order to prevent the insulation layer from being twisted when the shell 1 is rotated, a rotating mechanism (not shown in the figure) is provided at the winding end of the cable and the unwinding end of the inner core, so that the inner core (or cable) can rotate synchronously with the shell 1, thereby improving the quality of the cable.

[0032] In one embodiment of the present invention, Figure 5 As shown, the driving assembly 2 may include a motor 20, a first transmission shaft 21, a first gear 22 and a first gear ring 23, wherein the motor 20 is mounted on the support 10, the first transmission shaft 21 is connected to the output end of the motor 20, the first gear 22 is arranged on the first transmission shaft 21, the first gear ring 23 is arranged on the outer wall of the outer cylinder 14, and the first gear ring 23 is meshed and connected with the first gear 22.

[0033] It should be noted that the diameter of the first gear 22 described in this embodiment is smaller than the diameter of the first gear ring 23 , and the housing 1 can be driven to rotate slowly by the principle that the small gear drives the large gear ring to decelerate.

[0034] In one embodiment of the present invention, Figure 3As shown, the transmission assembly 32 may include a second transmission shaft 321, two second gears 322, a second gear ring 323 and a third gear ring 324, wherein the second transmission shaft 321 is arranged through the fixed plate 15, the two second gears 322 are both arranged on the second transmission shaft 321, the second gear 322 is arranged on the second transmission shaft 321, the second gear ring 323 is arranged on the outer wall of the rotating drum 30, and the second gear ring 323 is meshed and connected with one of the second gears 322, a support plate 5 is provided on the outside of the shell 1, the third gear ring 324 is arranged on the support plate 5, and the third gear ring 324 is meshed and connected with another second gear 322.

[0035] It should be noted that the two second gears 322 described in this embodiment are respectively located inside and outside the shell 1. When the second gear 322 rotates with the shell 1, it is restricted by the third gear ring 324, so that the second gear 322 meshing with the third gear ring 324 can rotate on its own, and drive the second transmission shaft 321 to rotate on its own. With the cooperation of the second gear 322 and the second gear ring 323, the rotating drum 30 and the spiral conveying blade 31 are driven to rotate, so as to extrude the insulating material inside the accommodating cavity 8 into the inside of the extrusion head 6, and wrap it on the outer wall of the inner core through the extrusion head 6.

[0036] Furthermore, if Figure 4 As shown, a plurality of grooves 12 are provided on the arc-shaped concave surface of the inner cylinder 13 , and a ball 9 is provided inside each groove 12 .

[0037] It should be noted that the ball 9 described in this embodiment is rolled inside the corresponding groove 12, and the ball 9 is arranged in contact with the outer wall of the inner core. The ball 9 can center the inner core inside the inner tube 13 and move the inner core stably.

[0038] In one embodiment of the present invention, Figure 2 As shown, the extrusion head 6 is sleeved on the outside of the cable, and the end of the extrusion head 6 away from the outer cylinder 14 is a truncated cone structure.

[0039] It should be noted that the end of the extrusion head 6 described in this embodiment that is away from the outer cylinder 14 is smaller so that the extruded insulating material can be gathered, which has a better wrapping effect on the inner core.

[0040] Specifically, during the processing of the cable, relevant personnel will pass one end of the inner core to be wrapped through the inner tube 13 and the extrusion head 6, and wind it on the winding device, and then transport the molten insulating material to the interior of the accommodating cavity 8 through the feed pipe 11. Then, the motor 20 can be controlled to start, and with the cooperation of the first gear 22 and the first gear ring 23, the entire shell 1 can be driven to rotate slowly. At the same time, when the shell 1 rotates, with the cooperation of the transmission assembly 32, the spiral conveying blade 31 can be driven to rotate, thereby extruding the insulating material to wrap the insulating material on the inner core. After cooling, an insulating layer can be formed.

[0041] In summary, the cable insulation layer wrapping device of the embodiment of the utility model drives the shell and the extrusion head to rotate so that the insulation layer is evenly distributed on the inner core, thereby avoiding uneven distribution of the insulation layer caused by flow deviation of the insulation layer, thereby improving the quality of the cable.

[0042] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A cable insulation layer wrapping device, characterized in that: It includes a housing, a driving assembly and a feeding assembly, wherein: The shell is rotatably arranged on the support through a support ring, and one end of the shell is connected to an extrusion head; A feed pipe is connected to the shell; The driving assembly is arranged on the support, and the driving assembly is connected to the housing; The housing is provided with a containing cavity inside, and the feeding assembly is arranged inside the containing cavity; the feeding assembly includes a rotating drum, a spiral conveying blade and a transmission assembly, wherein: The shell comprises an inner cylinder, an outer cylinder and a fixing plate, one end of the inner cylinder and the outer cylinder are closed by the fixing plate, and the other end of the inner cylinder and the outer cylinder are open, a convex ring is provided on the side wall of the inner cylinder, the rotating cylinder is sleeved on the inner cylinder, and the two ends of the rotating cylinder are rotatably connected to the fixing plate and the convex ring respectively; The spiral conveying blade is arranged on the rotating drum; The transmission assembly is mounted on the fixed plate, and the transmission assembly is connected to the rotating drum.

2. The cable insulation layer wrapping device according to claim 1, characterized in that: The driving assembly includes a motor, a first transmission shaft, a first gear and a first gear ring, wherein: The motor is mounted on the support; The first transmission shaft is connected to the output end of the motor; The first gear is arranged on the first transmission shaft; The first gear ring is arranged on the outer wall of the outer cylinder, and the first gear ring is meshedly connected with the first gear.

3. The cable insulation layer wrapping device according to claim 1, characterized in that: The transmission assembly includes a second transmission shaft, two second gears, a second gear ring and a third gear ring, wherein: The second transmission shaft is arranged through the fixing plate; The two second gears are both arranged on the second transmission shaft; The second gear is arranged on the second transmission shaft; The second gear ring is arranged on the outer wall of the drum, and the second gear ring is meshedly connected with one of the second gears; A support plate is disposed outside the housing, the third gear ring is disposed on the support plate, and the third gear ring is meshedly connected with another of the second gears.

4. The cable insulation layer wrapping device according to claim 1, characterized in that: A plurality of grooves are arranged on the arc-shaped concave surface of the inner cylinder, and a ball is arranged inside each of the grooves.

5. The cable insulation layer wrapping device according to claim 1, characterized in that: The extrusion head is sleeved on the outside of the cable, and one end of the extrusion head away from the outer cylinder is a truncated cone structure.

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