Production equipment for improving cracking of sheath layer of steel tape armored cable
By wrapping non-woven fabric on the surface of the steel tape armored cable and forming a sheath layer in an extruder, the problem of easy bursting of the sheath layer of the steel tape armored cable is solved, the production efficiency is improved, the cost is reduced, and the mechanical protection performance of the cable is enhanced.
Patent Information
- Application Number
- CN202422828987.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Traditional steel tape armored cables lack a buffer between the steel tape armor layer and the sheath layer, which causes the sheath layer to easily crack in alternating hot and cold environments. Adding a non-woven fabric wrapping process will increase costs and reduce production efficiency.
A non-woven fabric unwinding mechanism and a longitudinal wrapping mold are used to wrap the non-woven fabric directly around the surface of the steel belt armored cable, and form a sheath layer in the extruder, avoiding the addition of additional processes and using the non-woven fabric as a buffer layer to reduce damage to the sheath layer.
It improves the production efficiency and quality of steel-belt armored cables, reduces production costs, prevents sheath layer bursting, and improves the mechanical protection performance of the cable.
Smart Images
Figure CN223486758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable production technology, specifically to a production equipment for improving the cracking of the sheath layer of steel tape armored cables. Background Technology
[0002] Steel-tape armored cables are designed to increase the mechanical strength of cables, improve their corrosion resistance, enhance their resistance to external forces, protect them from rodent damage, and provide enhanced tensile and compressive strength, thus extending their service life. These cables are primarily suitable for applications requiring high mechanical strength, frequent mechanical wear, harsh construction environments, or corrosion resistance. Examples include submarine cables, petrochemical plant cables, subway cables, and cables used in high-altitude areas.
[0003] Traditional steel-tape armored cables either lack a non-woven fabric buffer layer between the steel tape armor layer and the sheath layer, leading to damage to the sheath layer due to unevenness and curling of the steel tape, and stress generated during sheath cooling, resulting in cracking of the sheath layer under alternating hot and cold environments, causing quality problems. Alternatively, an additional process, a non-woven fabric wrapping layer, is added outside the steel tape armor layer. However, this adds non-woven fabric consumption, inevitably reducing production efficiency and increasing production costs. The purpose of this invention is to use an online device to change the non-woven fabric wrapping to longitudinal wrapping, merging it into a single sheath layer extrusion process, without adding any production steps. Simultaneously, changing the wrapping to longitudinal wrapping also reduces non-woven fabric consumption. This improves production efficiency, reduces production costs, and enhances cable quality. Utility Model Content
[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a production equipment that improves the production of steel tape armored cable sheath layer bursting, and can prevent the sheath layer of steel tape armored cable from bursting.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a production equipment for improving the bursting of the sheath layer of steel tape armored cables, used in conjunction with steel tape armored cables, including a frame, a non-woven fabric tape feeding mechanism, and a longitudinal wrapping mold;
[0006] The nonwoven fabric feeding mechanism includes a sleeve and a nonwoven fabric. The sleeve is arranged laterally and is rotatably connected to the frame. The first end of the nonwoven fabric is wound around the sleeve, and the second end of the nonwoven fabric is in contact with the steel tape armored cable.
[0007] The longitudinal wrapping mold is installed on the frame and is used to longitudinally wrap the nonwoven fabric onto the steel tape armored cable.
[0008] Furthermore, a vertical rod is fixedly installed on the frame, and the vertical rod is disposed between the sleeve and the longitudinal packaging mold;
[0009] The nonwoven fabric feeding mechanism further includes a first sliding sleeve, a guide roller, and a first locking screw. The first sliding sleeve is sleeved on the vertical rod and slides in contact with the vertical rod. The guide roller is disposed on the first sliding sleeve and is rotatably connected to the first sliding sleeve. The guide roller rolls in contact with the nonwoven fabric. The first locking screw is used to lock the first sliding sleeve on the vertical rod.
[0010] Furthermore, the nonwoven fabric feeding mechanism also includes a crossbar, a second sliding sleeve, and a second locking screw. The crossbar is fixedly connected to the frame, the second sliding sleeve is sleeved on the crossbar and slides in contact with the crossbar, the second sliding sleeve is rotatably connected to the sleeve, and the second locking screw is used to lock the second sliding sleeve on the crossbar.
[0011] Furthermore, there are two nonwoven fabric tape-laying mechanisms, which are respectively located above and below the steel strip armored cable.
[0012] Furthermore, it also includes a movable frame and a support roller. The movable frame is connected to the frame, and the support roller is disposed on the movable frame and located below the steel strip armored cable. The support roller is rotatably connected to the movable frame, and an annular groove adapted to the steel strip armored cable is formed on the outer circumferential surface of the support roller.
[0013] Furthermore, the frame has a waist-shaped groove extending longitudinally, the movable frame slides in contact with the inner wall of the waist-shaped groove, and the movable frame is bolted to the frame.
[0014] The beneficial effects of this utility model are as follows: This utility model provides a production equipment for improving the cracking of the sheath layer of steel tape armored cables. A layer of non-woven fabric is wrapped between the sheath layer and the steel tape of the steel tape armored cable, which acts as a buffer zone, reducing the destructive effect of factors such as unevenness and poor smoothness of the steel tape surface on the sheath layer, and improving the first-pass yield of steel tape armored cables. Attached Figure Description
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;
[0017] Figure 3 This is a schematic diagram of the crossbar and the second sliding sleeve.
[0018] Reference numerals: 10-steel tape armored cable, 20-frame, 21-waist-shaped groove, 30-non-woven fabric feeding mechanism, 31-sleeve, 32-non-woven fabric, 33-first sliding sleeve, 34-guide roller, 35-first locking screw, 36-crossbar, 37-second sliding sleeve, 38-second locking screw, 40-longitudinal wrapping mold, 50-vertical rod, 60-movable frame, 70-support roller. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.
[0023] like Figures 1-3 As shown, this utility model provides a production equipment for improving the bursting of the sheath layer of steel tape armored cable, which is used in conjunction with the steel tape armored cable 10. It includes a frame 20, a non-woven fabric tape feeding mechanism 30, and a longitudinal wrapping mold 40.
[0024] The nonwoven fabric feeding mechanism 30 includes a sleeve 31 and a nonwoven fabric 32. The sleeve 31 is arranged laterally and is rotatably connected to the frame 20. The first end of the nonwoven fabric 32 is wound around the sleeve 31, and the second end of the nonwoven fabric 32 is in contact with the steel tape armored cable 10.
[0025] The longitudinal wrapping mold 40 is mounted on the frame 20 and is used to longitudinally wrap the nonwoven fabric 32 onto the steel tape armored cable 10.
[0026] During production, the steel-tape armored cable 10 is manufactured sequentially via a gantry-type cable-laying frame, a front traction machine, an extruder, and a cooling water tank. This part is existing technology, and the specific structure will not be described in detail.
[0027] This invention is installed between the front traction machine and the extruder. A layer of non-woven fabric 32 is wound around the surface of the steel-tape armored cable 10 via a non-woven fabric feeding mechanism 30 and a longitudinal wrapping mold 40. Then, the extruder directly extrudes insulating plastic onto the surface of the non-woven fabric 32 to form a sheath layer. In other words, a layer of non-woven fabric 32 is wound between the sheath layer and the steel tape of the steel-tape armored cable 10, acting as a buffer zone. This reduces the damaging effect on the sheath layer caused by unevenness or poor smoothness of the steel tape surface, thus improving the first-pass yield of the steel-tape armored cable 10.
[0028] In one embodiment, a vertical rod 50 is fixedly installed on the frame 20, and the vertical rod 50 is disposed between the sleeve 31 and the longitudinal wrapping mold 40.
[0029] The nonwoven fabric feeding mechanism 30 also includes a first sliding sleeve 33, a guide roller 34, and a first locking screw 35. The first sliding sleeve 33 is sleeved on the vertical rod 50 and slides in contact with the vertical rod 50. The guide roller 34 is disposed on the first sliding sleeve 33 and is rotatably connected to the first sliding sleeve 33, and the guide roller 34 rolls in contact with the nonwoven fabric 32. The first locking screw 35 is used to lock the first sliding sleeve 33 onto the vertical rod 50.
[0030] In this embodiment, the nonwoven fabric feeding mechanism 30 further includes a crossbar 36, a second sliding sleeve 37, and a second locking screw 38. The crossbar 36 is fixedly connected to the frame 20. The second sliding sleeve 37 is sleeved on the crossbar 36 and slides in contact with the crossbar 36. The second sliding sleeve 37 is rotatably connected to the sleeve 31. The second locking screw 38 is used to lock the second sliding sleeve 37 onto the crossbar 36.
[0031] In this embodiment, there are two nonwoven fabric tape laying mechanisms 30, which are respectively arranged above and below the steel tape armored cable 10.
[0032] The operator can control the height of the first sliding sleeve 33 through the first locking screw 35, thereby adjusting the distance between the guide roller 34 and the steel-tape armored cable 10, and thus controlling the order of the upper and lower non-woven fabrics 32 during longitudinal wrapping. When the distance between the upper guide roller 34 and the steel-tape armored cable 10 is closer than the distance between the lower guide roller 34 and the steel-tape armored cable 10, the upper non-woven fabric 32 will act as the outer longitudinal wrapping layer, and the lower non-woven fabric 32 will act as the inner longitudinal wrapping layer, with the upper and lower non-woven fabrics 32 overlapping by 5-10mm.
[0033] Workers can control the position of the second sliding sleeve 37 on the crossbar 36 by using the second locking screw 38, based on the width of the produced steel tape armored cable 10 and the width of the non-woven fabric 32, thereby adjusting the position of the sleeve 31 to ensure that the center line of the non-woven fabric 32 on which the tape is laid is always on the same vertical plane as the center line of the produced steel tape armored cable 10.
[0034] In one embodiment, the system further includes a movable frame 60 and a support roller 70. The movable frame 60 is connected to the frame 20. The support roller 70 is disposed on the movable frame 60 and located below the steel-strip armored cable 10. The support roller 70 is rotatably connected to the movable frame 60, and an annular groove adapted to the steel-strip armored cable 10 is formed on the outer circumferential surface of the support roller 70.
[0035] The design of the support roller 70 can support and guide the steel strip armored cable 10, ensuring that the subsequent longitudinal wrapping operation can be carried out stably.
[0036] In one embodiment, the frame 20 has a waist-shaped groove 21 extending longitudinally, the movable frame 60 slides in contact with the inner wall of the waist-shaped groove 21, and the movable frame 60 is bolted to the frame 20.
[0037] Workers can adjust the height of the movable frame 60 and the support roller 70 by bolts according to the diameter of the steel tape armored cable 10, so as to ensure that the center line of the steel tape armored cable 10 is at the same horizontal level as the center line of the equipment production line.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 production equipment for improving the bursting of the sheath layer of steel-tape armored cables, used in conjunction with steel-tape armored cables, comprising a frame, characterized in that: It also includes a nonwoven fabric feeding mechanism and a longitudinal wrapping mold; The nonwoven fabric feeding mechanism includes a sleeve and a nonwoven fabric. The sleeve is arranged laterally and is rotatably connected to the frame. The first end of the nonwoven fabric is wound around the sleeve, and the second end of the nonwoven fabric is in contact with the steel tape armored cable. The longitudinal wrapping mold is installed on the frame and is used to longitudinally wrap the nonwoven fabric onto the steel tape armored cable.
2. The production equipment for improving the bursting of the sheath layer of steel-tape armored cables according to claim 1, characterized in that: A vertical rod is fixedly installed on the frame, and the vertical rod is positioned between the sleeve and the longitudinal packaging mold. The nonwoven fabric feeding mechanism further includes a first sliding sleeve, a guide roller, and a first locking screw. The first sliding sleeve is sleeved on the vertical rod and slides in contact with the vertical rod. The guide roller is disposed on the first sliding sleeve and is rotatably connected to the first sliding sleeve. The guide roller rolls in contact with the nonwoven fabric. The first locking screw is used to lock the first sliding sleeve on the vertical rod.
3. The production equipment for improving the bursting of the sheath layer of steel-tape armored cables according to claim 2, characterized in that: The nonwoven fabric feeding mechanism also includes a crossbar, a second sliding sleeve, and a second locking screw. The crossbar is fixedly connected to the frame. The second sliding sleeve is sleeved on the crossbar and slides in contact with the crossbar. The second sliding sleeve is rotatably connected to the sleeve. The second locking screw is used to lock the second sliding sleeve on the crossbar.
4. The production equipment for improving the bursting of the sheath layer of steel-tape armored cables according to claim 3, characterized in that: There are two nonwoven fabric tape laying mechanisms, which are respectively located above and below the steel tape armored cable.
5. The production equipment for improving the bursting of the sheath layer of steel-tape armored cables according to claim 1, characterized in that: It also includes a movable frame and a roller. The movable frame is connected to the frame, and the roller is disposed on the movable frame and located below the steel strip armored cable. The roller is rotatably connected to the movable frame, and an annular groove adapted to the steel strip armored cable is opened on the outer circumference of the roller.
6. The production equipment for improving the bursting of the sheath layer of steel-tape armored cables according to claim 5, characterized in that: The frame has a waist-shaped groove extending longitudinally, the movable frame slides in contact with the inner wall of the waist-shaped groove, and the movable frame is bolted to the frame.