Low-altitude economic cable sleeve heat shrink device

Abstract

The application is suitable for the technical field of cable production, and provides a low-altitude economic cable sleeve heat-shrinking device, which comprises a base, and further comprises: a position control assembly installed on the base, two sliding seats installed on the position control assembly, and the position control assembly used for driving the two sliding seats to independently move positions; a straightening assembly and a positioning and clamping assembly fixed on the two sliding seats respectively, the straightening assembly and the positioning and clamping assembly being of the same structure, the positioning and clamping assembly used for positioning and clamping a cable, and the straightening assembly used for straightening the cable; a heat-shrinking assembly arranged between the positioning and clamping assembly and the straightening assembly, connected with the base through a supporting assembly, and used for fixedly supporting or controllably rotatingly supporting the heat-shrinking assembly. The application has the advantages of reasonable structure design, strong adaptability, good heat-shrinking effect, effective protection of the cable, and improved heat-shrinking quality.

Description

Technical Field

[0001] This invention belongs to the field of cable production technology, and in particular relates to a heat shrinking device for low-altitude economic cable sheaths. Background Technology

[0002] In the process of laying and maintaining low-altitude economic cables, the heat shrink treatment of cable sleeves is a key step to ensure the insulation and protection of cable connection points.

[0003] Traditional heat shrinking operations rely heavily on manual operation or semi-automatic equipment. When processing cables of different specifications, these methods are difficult to achieve precise distance control and uniform heating, resulting in unstable heat shrinking quality, low efficiency, and even damage to the cables.

[0004] Especially in low-altitude economic applications, there are higher requirements for the safety, durability, and construction efficiency of cable joints, and existing technologies are difficult to meet these diverse needs.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a heat shrinking device for low-altitude economic cable sheaths to overcome the shortcomings in current practical applications. Summary of the Invention

[0006] The purpose of this invention is to provide a heat shrinking device for low-altitude economic cable sheaths, which aims to solve the problems mentioned in the background art.

[0007] This invention is implemented as follows: a heat-shrinkable device for low-altitude economical cable sheaths, comprising a base, and further comprising:

[0008] A position control component is mounted on the base, and two sliding seats are mounted on the position control component. The position control component is used to drive the two sliding seats to move independently.

[0009] The straightening assembly and the positioning clamping assembly are respectively fixed on the two sliding seats. The straightening assembly and the positioning clamping assembly have the same structure. The positioning clamping assembly is used to position and clamp the cable, and the straightening assembly is used to straighten the cable.

[0010] A heat shrinking assembly is disposed between the positioning clamping assembly and the straightening assembly, and is connected to the base via a support assembly. The support assembly is used to provide fixed support or controllable rotational support for the heat shrinking assembly.

[0011] The heat shrink assembly includes a heat shrink tube, with multiple heat protection tubes circumferentially distributed on one inner end of the heat shrink tube. A heating rod is slidably disposed inside the heat protection tube, and a linkage rod is fixed to the end of the heating rod away from the heat protection tube. The linkage rod is slidably connected to a collar, and the collar is also slidably connected to the heat shrink tube. A first telescopic cylinder for driving the collar to move is also fixed to the outer side of the heat shrink tube. A second telescopic cylinder is also circumferentially distributed on the heat shrink tube and fixed to the heat protection tube. The telescopic spindle of the second telescopic cylinder is fixedly connected to the heat protection tube.

[0012] In a further technical solution, the heat shrink tubing is a horizontally arranged cylindrical structure; the heat shrink tubing has an opening corresponding to the linkage rod and used for position adjustment as the rod passes through.

[0013] In a further technical solution, multiple first telescopic cylinders are evenly distributed circumferentially parallel to the heating rod, and the cylinder body of the first telescopic cylinder is fixedly connected to the outer wall of the heat shrink tubing through a cylinder body support.

[0014] In a further technical solution, a groove is provided on the inner side of the collar to slide and connect with the linkage rod.

[0015] In a further technical solution, the support assembly includes a first fixing frame, with the first fixing frame fixed on both sides of the heat shrink tubing, and the lower end of the first fixing frame fixed to the base.

[0016] In a further technical solution, the support assembly includes a second fixed ring, a driven gear, a bearing ring, a second motor, a motor support, a drive gear, and a second fixed frame. The second fixed ring is fixed to the outer side of the heat shrink tubing, and the bearing ring is rotatably mounted on the outer side of the second fixed ring. The second fixed frame is fixed to both sides of the lower part of the bearing ring, and the lower end of the second fixed frame is fixed to the base. The driven gear is also fixed on the second fixed ring. The driven gear meshes with the drive gear fixed to the output end of the second motor. The second motor is connected and fixed to the bearing ring or the second fixed frame through the motor support.

[0017] In a further technical solution, the second electric motor is used to drive the heat shrink tubing to reciprocate.

[0018] A further technical solution includes a first fixed ring fixed to the upper end of the sliding seat. A rotary ring is rotatably mounted on one side of the first fixed ring. Multiple movable slots are circumferentially distributed on the side wall of the rotary ring. A sliding sleeve is rotatably supported in the movable slots via a second support shaft. A clamping arm is slidably mounted on the inner side of the sliding sleeve. The outer end of the clamping arm is rotatably connected to the first fixed ring via a first support shaft. A wheel frame is fixed to the inner end of the clamping arm, and a clamping wheel is rotatably mounted on the wheel frame. An arc-shaped telescopic cylinder is also fixed to the first fixed ring, and the telescopic spindle of the arc-shaped telescopic cylinder is fixedly connected to the rotary ring.

[0019] A further technical solution includes two end fixing seats fixed on the base, a lead screw rotatably mounted between the two end fixing seats, a first motor connected to the lead screw and fixed on one of the end fixing seats, guide rails on both sides of the lead screw, the guide rails being fixedly connected to the base and the end fixing seats, a through hole for the lead screw to slide through and a guide slot for the guide rails to slide through on the sliding seat, a transmission cavity communicating with the through hole on the inner side of the sliding seat, a third telescopic cylinder fixed in the transmission cavity, and a transmission plate threadedly connected to the lead screw at the end of the telescopic spindle of the third telescopic cylinder.

[0020] In a further technical solution, L-shaped cavities are formed on both sides of the transmission cavity within the sliding seat. The two ends of the L-shaped cavities are respectively connected to the side of the transmission cavity and the top of the guide slot. An L-shaped rod is fixed on each side of the transmission plate. The horizontal and vertical parts of the L-shaped rods are correspondingly arranged with the L-shaped cavities, and the vertical part of the L-shaped rods is slidably connected to the vertical part of the L-shaped cavity. When the transmission plate is threadedly connected to the lead screw, the lower end of the vertical part of the L-shaped rod is separated from the guide rail. When the transmission plate is separated from the lead screw, the lower end of the vertical part of the L-shaped rod abuts and is fixed to the guide rail.

[0021] The present invention provides a heat-shrinkable device for low-altitude economic cable sheaths, which has the following beneficial effects:

[0022] Through the arrangement of the heat shrink assembly, the second telescopic cylinder can drive the heat protection tube to move radially, adjusting the distance between the heating rod and the cable, adapting to different types of cables for heat shrinking operations. The first telescopic cylinder can drive the collar to move axially, thereby pulling the heating rod relative to the heat protection tube through the linkage rod, adjusting the length of the heating rod extending out of the heat protection tube, adapting to heat shrink tubes of different lengths, avoiding damage to the cable from the heating rod, and the linkage rod can adapt to the radial movement of the heating rod, while also satisfying the collar to drive its movement, so that the heating rod moves accordingly; the support assembly can provide fixed support or controllable rotational support for the heat shrink assembly, selecting different methods as needed. When the support assembly drives the heat shrink assembly to rotate, it can make the heating rod move along the surface of the cable, improving the uniformity of heating of the heat shrink tube, thereby improving the overall quality of heat shrinking.

[0023] In addition, the positioning and clamping assembly can position and clamp the cable, that is, adjust the position of the cable relative to the heat shrinking assembly so that the heating position of the heat shrinking assembly and the heat shrink tubing correspond to the position of the cable that needs to be heat-shrinked. Then, depending on the remaining cable length, the straightening assembly can be used to straighten the cable, so that the cable, heat shrink tubing and heat shrink cylinder are coaxial, improving the overall quality of heat shrinking. As needed, the position control assembly can drive the two sliding seats to move independently, thereby changing the position of the positioning and clamping assembly and the straightening assembly as needed to meet the adaptability requirements of processing.

[0024] In summary, the present invention has the advantages of reasonable structural design, strong adaptability, good heat shrinking effect, effective protection of cables and improvement of heat shrinking quality. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of the heat shrinking device for low-altitude economic cable sheaths provided in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the heat shrinking component in the heat shrinking device for low-altitude economic cable sheaths provided in an embodiment of the present invention.

[0027] Figure 3 for Figure 2 Another perspective structural diagram;

[0028] Figure 4 for Figure 2 Axonometric drawing;

[0029] Figure 5 This is a schematic diagram of the straightening component in the low-altitude economic cable sheath heat shrinking device provided in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the main structure of the heat shrinking device for low-altitude economic cable sheaths provided in an embodiment of the present invention;

[0031] Figure 7 for Figure 6 Axonometric drawing along the AA direction;

[0032] Figure 8 for Figure 7 A magnified structural diagram of part B in the middle section;

[0033] Figure 9 This is a schematic diagram of another installation method of the heat shrinking component in the low-altitude economic cable sheath heat shrinking device provided in an embodiment of the present invention.

[0034] Figure 10 for Figure 9 Another perspective structural diagram.

[0035] In the diagram: 1-Base, 2-End fixing seat, 3-Guide rail, 4-Sliding seat, 5-First fixing frame, 6-Screw rod, 7-First motor, 8-Cable, 9-Straightening assembly, 10-Heat shrink assembly, 11-Positioning clamping assembly, 12-Position control assembly, 13-Heat shrink cylinder, 14-First telescopic cylinder, 15-Cylinder body support, 16-Second telescopic cylinder, 17-Position adjustment opening, 18-Lock ring, 19-Heating rod, 20-Linkage rod, 21-Heat protection tube, 22-First 23-Fixed ring, 24-Arc-shaped telescopic cylinder, 25-Rotating ring, 26-Modible slot, 27-First support shaft, 28-Clamping arm, 29-Sliding sleeve, 30-Wheel frame, 31-Clamping wheel, 32-Transmission cavity, 33-Transmission plate, 34-Third telescopic cylinder, 35-L-shaped cavity, 36-L-shaped rod, 37-Guide slot, 38-Second fixed ring, 39-Passive gear, 40-Bearing ring, 41-Second motor, 42-Motor support, 43-Drive gear, 44-Second fixed frame. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0038] like Figure 1-4 As shown, a heat shrinking device for an 8-sleeve sheath of a low-altitude economic cable provided in one embodiment of the present invention includes a base 1 and further includes:

[0039] A position control component 12 is mounted on a base 1. Two sliding seats 4 are mounted on the position control component 12. The position control component 12 is used to drive the two sliding seats 4 to move independently.

[0040] The straightening component 9 and the positioning clamping component 11 are respectively fixed on the two sliding seats 4. The positioning clamping component 11 and the straightening component 9 have the same structure. The positioning clamping component 11 is used to position and clamp the cable 8, and the straightening component 9 is used to straighten the cable 8.

[0041] A heat shrinkable assembly 10 is disposed between a positioning clamping assembly 11 and a straightening assembly 9. The heat shrinkable assembly 10 is connected to a base 1 via a support assembly, which is used to provide fixed support or controllable rotational support for the heat shrinkable assembly 10.

[0042] The heat shrinkable assembly 10 includes a heat shrinkable cylinder 13. Multiple heat protection tubes 21 are circumferentially distributed on one inner end of the heat shrinkable cylinder 13. A heating rod 19 is slidably disposed inside each heat protection tube 21. A linkage rod 20 is fixed to the end of the heating rod 19 away from the heat protection tube 21. The linkage rod 20 is slidably connected to a collar 18, which is also slidably connected to the heat shrinkable cylinder 13. A first telescopic cylinder 14 for driving the collar 18 to move is also fixed to the outer side of the heat shrinkable cylinder 13. Second telescopic cylinders 16 are also circumferentially distributed on the heat shrinkable cylinder 13, corresponding to the heat protection tubes 21, and their telescopic spindles are fixedly connected to the heat protection tubes 21.

[0043] In this embodiment of the invention, through the arrangement of the heat shrink assembly 10, the second telescopic cylinder 16 can drive the heat protection tube 21 to move radially, adjust the distance between the heating rod 19 and the cable 8, and adapt to different types of cables 8 for heat shrinking operations. The first telescopic cylinder 14 can drive the collar 18 to move axially, thereby pulling the heating rod 19 relative to the heat protection tube 21 through the linkage rod 20, adjusting the length of the portion of the heating rod 19 extending out of the heat protection tube 21, which can be adapted to use heat shrink tubes of different lengths, avoiding damage to the cable 8 by the heating rod 19. Moreover, the linkage rod 20 can adapt to the radial movement of the heating rod 19, while satisfying the collar 18 to drive its movement, so that the heating rod 19 moves accordingly. The support assembly can provide fixed support or controllable rotational support for the heat shrink assembly 10, selecting different methods as needed. When the support assembly drives the heat shrink assembly 10 to rotate, the heating rod 19 can move along the surface of the cable 8, improving the uniformity of heating of the heat shrink tube, thereby improving the overall quality of heat shrinking.

[0044] In addition, the positioning and clamping assembly 11 can position and clamp the cable 8, that is, adjust the position of the cable 8 relative to the heat shrinking assembly 10 so that the heating position of the heat shrinking assembly 10, the heat shrink tube and the position of the cable 8 that needs to be heat-shrinked correspond. Then, according to the remaining length of the cable 8, the straightening assembly 9 can be used to straighten the cable 8 so that the cable 8, the heat shrink tube and the heat shrink cylinder 13 are coaxial, thereby improving the overall quality of heat shrinking. As needed, the two sliding seats 4 can be driven to move independently by the position control assembly 12, thereby changing the position of the positioning and clamping assembly 11 and the straightening assembly 9 as needed to meet the processing adaptability requirements.

[0045] In summary, the present invention has the advantages of reasonable structural design, strong adaptability, good heat shrinking effect, effective protection of cable 8 and improvement of heat shrinking quality.

[0046] like Figure 1-4 As shown in Figures 9-10, in a preferred embodiment of the present invention, the heat shrink tubing 13 is a horizontally arranged cylindrical structure; the heat shrink tubing 13 has a position adjustment opening 17 corresponding to the linkage rod 20 and used for its passage.

[0047] Multiple first telescopic cylinders 14 are evenly distributed around the heating rod 19. The cylinder body of the first telescopic cylinder 14 is fixedly connected to the outer wall of the heat shrink cylinder 13 through the cylinder body support 15, so that the collar 18 can be stably driven to move.

[0048] The inner side of the collar 18 is provided with a sliding groove that is slidably connected to the linkage rod 20, which ensures the stability of the collar 18 in transmitting power to the linkage rod 20 and the heating rod 19.

[0049] The heating rod 19 can be appropriately arranged, and the heat protection tube 21 only needs to insulate the heating rod 19 to prevent the excess heating rod 19 from affecting the cable 8. In addition, the heating rod 19 can also adopt a segmented heating method to save energy and improve reliability.

[0050] In one embodiment, such as Figure 1 As shown, the support assembly includes a first fixing frame 5. The heat shrinkable cylinder 13 is fixed with the first fixing frame 5 on both sides. The lower end of the first fixing frame 5 is fixed on the base 1, that is, the support assembly provides fixed support for the heat shrinkable assembly 10.

[0051] In another embodiment, such as Figure 9 and 10As shown, the support assembly includes a second fixed ring 37, a driven gear 38, a bearing ring 39, a second motor 40, a motor support 41, a drive gear 42, and a second fixed frame 43. The second fixed ring 37 is fixed to the outer side of the heat shrink tubing 13. The second fixed ring 37 can be arranged corresponding to the cylinder support 15. At the same time, the second fixed ring 37 is adapted and fixed to the cylinder support 15. The second fixed ring 37 can also be set to avoid the cylinder support 15, which is not limited. The bearing ring 39 is rotatably installed on the outer side of the second fixed ring 37. The second fixed frame 43 is fixed on both sides of the lower part of the bearing ring 39. The lower end of the second fixed frame 43 is fixed to the base 1. The driven gear 38 is also fixed on the second fixed ring 37. The driven gear 38 meshes with the drive gear 42 fixed to the output end of the second motor 40. The second motor 40 is also connected and fixed to the bearing ring 39 or the second fixed frame 43 through the motor support 41. Starting the second motor 40 allows the second fixed ring 37 to rotate via the transmission of the drive gear 42 and the driven gear 38. The bearing ring 39 supports the rotation of the second fixed ring 37, thus driving the heat shrink tubing 13 to rotate stably. Preferably, the second motor 40 is used to drive the heat shrink tubing 13 to reciprocate, preventing twisting of the wiring of the components of the heat shrink assembly 10 and improving reliability.

[0052] like Figure 1 and 5 As shown, in a preferred embodiment of the present invention, the structure of the straightening component 9 is described as an example. The straightening component 9 includes a first fixing ring 22 fixed to the upper end of the sliding seat 4. A rotary ring 24 is rotatably mounted on one side of the first fixing ring 22. A plurality of movable slots 25 are circumferentially distributed on the side wall of the rotary ring 24. A sliding sleeve 28 is rotatably supported in the movable slot 25 by a second support shaft (not shown). A clamping arm 27 is slidably provided on the inner side of the sliding sleeve 28. The outer end of the clamping arm 27 is rotatably connected to the first fixing ring 22 by a first support shaft 26. A wheel frame 29 is fixed to the inner end of the clamping arm 27. A clamping wheel 30 is rotatably mounted on the wheel frame 29. An arc-shaped telescopic cylinder 23 is also fixed on the first fixing ring 22. The telescopic spindle of the arc-shaped telescopic cylinder 23 is fixedly connected to the rotary ring 24.

[0053] By controlling the extension and retraction of the arc-shaped telescopic cylinder 23, the rotary ring 24 can be rotated. The clamping arm 27 is limited by the first support shaft 26, and the sliding sleeve 28 is rotated and supported by the second support shaft. The clamping arm 27 and the sliding sleeve 28 are slidably connected, which can drive the angle of the clamping arm 27 to change. Multiple clamping wheels 30 are controlled to move closer to each other to center and clamp or release the cable 8, which has high reliability.

[0054] like Figure 1 , 5As shown in Figure 8, in a preferred embodiment of the present invention, the position control component 12 includes two end fixing seats 2 fixed on the base 1. A lead screw 6 is rotatably mounted between the two end fixing seats 2. A first motor 7, which is connected to the lead screw 6, is also fixed on one of the end fixing seats 2. Guide rails 3 are provided on both sides of the lead screw 6. The guide rails 3 are fixedly connected to the base 1 and the end fixing seats 2. A through hole for the lead screw 6 to slide through and a guide slot 36 for the guide rail 3 to slide through are provided on the sliding seat 4. A transmission cavity 31 communicating with the through hole is also provided on the inner side of the sliding seat 4. A third telescopic cylinder 33 is fixed in the transmission cavity 31. A transmission plate 32 that can be threadedly connected to the lead screw 6 is fixed at the end of the telescopic spindle of the third telescopic cylinder 33. Specifically, the transmission plate 32 is arranged in an arc shape, and a thread that cooperates with the lead screw 6 is arranged on its upper side.

[0055] To ensure the sliding seat 4 remains stable after stopping, L-shaped cavities 34 are formed on both sides of the transmission cavity 31 within the sliding seat 4. The two ends of the L-shaped cavities 34 communicate with the side of the transmission cavity 31 and the top of the guide slot 36, respectively. An L-shaped rod 35 is fixed to each side of the transmission plate 32. The horizontal and vertical portions of the L-shaped rods 35 correspond to the L-shaped cavities 34, and the vertical portion of the L-shaped rod 35 is slidably connected to the vertical portion of the L-shaped cavity 34. When the transmission plate 32 is threadedly connected to the lead screw 6, the lower end of the vertical portion of the L-shaped rod 35 separates from the guide rail 3. When the transmission plate 32 is separated from the lead screw 6, the lower end of the vertical portion of the L-shaped rod 35 abuts and is fixed to the guide rail 3. This ingenious structural design achieves the effect of maintaining the stability of the sliding seat 4 without driving it.

[0056] The above embodiments of the present invention provide a heat shrinking device for low-altitude economic cable sheaths. A position control component 12 drives a sliding seat 4 to move along a lead screw 6 and a guide rail 3, thereby adjusting the positions of a positioning clamping component 11 and a straightening component 9 mounted on the sliding seat 4 to adapt to the processing requirements of cables 8 of different lengths. The positioning clamping component 11 or the straightening component 9 drives a rotating ring 24 to rotate via an arc-shaped telescopic cylinder 23, which in turn changes the angle of the clamping arm 27, allowing the clamping wheel 30 to center and clamp or release the cable 8. In the heat shrinking component 10, a first telescopic cylinder 14 drives a collar 18 to move axially, and the heating element is adjusted via a linkage rod 20. The heating rod 19 extends beyond the length of the heat protection tube 21. The second telescopic cylinder 16 drives the heat protection tube 21 to move radially, thereby adjusting the distance between the heating rod 19 and the cable 8 to adapt to different models of cables 8 and heat shrink tubing. The support assembly can be selected as a fixed support (such as the first fixed frame 5) or a rotating support (such as the second fixed ring 37, the driven gear 38, the bearing ring 39, the second motor 40, the drive gear 42, etc.) as needed. When a rotating support is used, the second motor 40 is started, and the heat shrink tubing 13 is driven to rotate back and forth through the meshing of the drive gear 42 and the driven gear 38, so that the heating rod 19 heats the surface of the cable 8 evenly.

[0057] The entire device achieves accurate positioning, automatic straightening, and flexible heat shrinking adjustment of cable 8, avoiding damage to cable 8 caused by heating rod 19, and significantly improving heat shrinking quality and applicability.

[0058] The control of each component can be achieved using a PLC controller disclosed in the existing technology. There are no specific limitations on the model and circuit connection of each component, and they can be flexibly set in actual applications.

[0059] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A low-altitude economic cable sleeve heat-shrinking device comprising a base (1), characterized in that, Also includes: A position control component (12) is installed on the base (1). Two sliding seats (4) are installed on the position control component (12). The position control component (12) is used to drive the two sliding seats (4) to move independently. The straightening assembly (9) and the positioning clamping assembly (11) are respectively fixed on the two sliding seats (4). The straightening assembly (9) and the positioning clamping assembly (11) have the same structure. The positioning clamping assembly (11) is used to position and clamp the cable (8), and the straightening assembly (9) is used to straighten the cable (8). The heat shrink assembly (10) is located between the positioning clamping assembly (11) and the straightening assembly (9), and is connected to the base (1) through the support assembly. The support assembly is used to provide fixed support or controllable rotation support for the heat shrink assembly (10). The heat shrink assembly (10) includes a heat shrink tube (13). Multiple heat protection tubes (21) are circumferentially distributed on one end of the inner side of the heat shrink tube (13). A heating rod (19) is slidably disposed inside the heat protection tube (21). A linkage rod (20) is fixed at one end of the heating rod (19) away from the heat protection tube (21). The linkage rod (20) is slidably connected to a collar (18). The collar (18) is also slidably connected to the heat shrink tube (13). A first telescopic cylinder (14) for driving the collar (18) to move is also fixed on the outer side of the heat shrink tube (13). A second telescopic cylinder (16) is also circumferentially distributed on the heat shrink tube (13) and fixed to the heat protection tube (21). The telescopic spindle of the second telescopic cylinder (16) is fixedly connected to the heat protection tube (21). The heat shrink tubing (13) is a horizontally arranged cylindrical structure; The heat shrink tubing (13) has a position adjustment opening (17) corresponding to the linkage rod (20) and used for it to pass through. Multiple first telescopic cylinders (14) are evenly distributed in parallel with the heating rod (19) in the circumference. The cylinder body of the first telescopic cylinder (14) is fixedly connected to the outer wall of the heat shrink cylinder (13) through cylinder body support (15). The inner side of the collar (18) is provided with a sliding groove that is slidably connected to the linkage rod (20); The support assembly includes a second fixed ring (37), a passive gear (38), a load-bearing ring (39), a second motor (40), a motor support (41), a drive gear (42), and a second fixed frame (43). The heat shrink tube (13) is fixed with a second fixing ring (37) on the outside. A bearing ring (39) is rotatably installed on the outside of the second fixing ring (37). A second fixing frame (43) is fixed on both sides of the lower part of the bearing ring (39). The lower end of the second fixing frame (43) is fixed on the base (1). A passive gear (38) is also fixed on the second fixed ring (37). The passive gear (38) meshes with the drive gear (42) fixed at the output end of the second motor (40). The second motor (40) is connected and fixed to the bearing ring (39) or the second fixed frame (43) through the motor support (41). The second electric motor (40) is used to drive the heat shrink tubing (13) to reciprocate.

2. The low-lying economy cable-sheath heat-shrink device of claim 1, wherein, The support assembly includes a first fixing frame (5), and the heat shrink tube (13) is fixed with the first fixing frame (5) on both sides. The lower end of the first fixing frame (5) is fixed to the base (1).

3. The low-lying economy cable-sheath heat-shrink device of claim 1, wherein, The straightening component (9) includes a first fixing ring (22) fixed to the upper end of the sliding seat (4). A rotating ring (24) is rotatably installed on one side of the first fixing ring (22). Multiple movable slots (25) are circumferentially distributed on the side wall of the rotating ring (24). A sliding sleeve (28) is rotatably supported in the movable slot (25) by a second support shaft. The inner side of the sliding sleeve (28) is provided with a clamping arm (27). The outer end of the clamping arm (27) is rotatably connected to the first fixing ring (22) through the first support shaft (26). The inner end of the clamping arm (27) is fixed with a wheel frame (29). A clamping wheel (30) is rotatably mounted on the wheel frame (29). An arc-shaped telescopic cylinder (23) is also fixed on the first fixed ring (22), and the telescopic spindle of the arc-shaped telescopic cylinder (23) is fixedly connected to the rotary ring (24).

4. The low-lying economy cable-sheath heat-shrink device of claim 1, wherein, The position control assembly (12) includes two end fixing seats (2) fixed on the base (1), and a lead screw (6) is rotatably mounted between the two end fixing seats (2). A first motor (7) that is connected to the lead screw (6) is fixed on one of the end fixing seats (2). The lead screw (6) is provided with guide rails (3) on both sides, and the guide rails (3) are fixedly connected to the base (1) and the end fixing seat (2); The sliding seat (4) is provided with a through hole for the lead screw (6) to slide through and a guide slot (36) for the guide rail (3) to slide through. The sliding seat (4) has a transmission cavity (31) that communicates with the through hole on its inner side. A third telescopic cylinder (33) is fixed in the transmission cavity (31). The telescopic spindle end of the third telescopic cylinder (33) is fixed with a transmission plate (32) that can be threadedly connected to the lead screw (6).

5. The low-lying economy cable sleeve heat-shrink device of claim 4, wherein, The transmission cavity (31) has L-shaped cavities (34) on both sides inside the sliding seat (4), and the two ends of the L-shaped cavity (34) are respectively connected to the side of the transmission cavity (31) and the top of the guide slot (36); An L-shaped rod (35) is fixed on each side of the transmission plate (32). The horizontal and vertical parts of the L-shaped rod (35) are correspondingly arranged with the L-shaped cavity (34), and the vertical part of the L-shaped rod (35) is slidably connected with the vertical part of the L-shaped cavity (34). When the transmission plate (32) is threadedly connected with the lead screw (6), the lower end of the vertical part of the L-shaped rod (35) is separated from the guide rail (3); When the transmission plate (32) is separated from the lead screw (6), the lower end of the vertical part of the L-shaped rod (35) is in abutting contact with the guide rail (3).

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