Smooth aluminum sheath cable hot melt adhesive removing device and method

By constructing an intelligent dynamic adhesive replenishment closed-loop system, the system utilizes flexible contact and adhesive guiding units to accurately identify defects in aluminum-sheathed cables and replenish hot melt adhesive, thus solving the problem of insulation layer damage in existing technologies and achieving efficient and precise cable repair.

CN121602268APending Publication Date: 2026-03-03STATE GRID BEIJING ELECTRIC POWER CO +2
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Patent Information

Application Number
CN202511732634.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

Existing techniques can easily damage the insulation layer of the cable's outer wall when removing the hot melt adhesive from aluminum-sheathed cables, thus affecting the cable's insulation performance.

Method used

An intelligent dynamic glue-repairing closed-loop system is constructed by employing a flexible contact and glue-guiding unit, a defect detection and response unit, a fixed-point glue-repair execution unit, and a glue supply and pressure balance unit. Through the contact between the flexible rubber hose and the aluminum sheath, the system accurately identifies and replenishes the defect location.

Benefits of technology

This method avoids physical damage to the outer insulation layer of the aluminum sheath, enables precise adhesive application, saves on the amount of adhesive insulating glue, improves repair efficiency and quality consistency, and reduces manual intervention and waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a smooth aluminum sheath cable hot melt adhesive removing device and method, and belongs to the technical field of hot melt adhesive removing. The device comprises an aluminum sheath detection pipe, a fixed-point glue supplementing execution unit composed of a driving mechanism and a steel wire rope transmission assembly, and a glue solution supply and pressure balancing unit comprising a pressure stabilizing valve and a one-way valve, wherein a flexible rubber hose, a pressure sensor and an elastic folding bag are arranged in the aluminum sheath detection pipe, and the pressure sensor and the elastic folding bag are annularly distributed. Surface defects of the aluminum sheath are sensed through the flexible rubber hose, local deformation is generated, the elastic folding bag at the corresponding position is triggered to expand and absorb glue, and the pressure sensor generates a signal; after the control system receives the signal, the steel wire rope assembly is driven to compress the elastic folding bag, the viscous insulating glue is accurately injected into the defect, and automatic repairing is achieved. According to the invention, the defect that an insulating layer is easy to damage by a traditional heating scraping method is overcome, non-destructive, precise and automatic online detection and glue repair are realized, and the insulating property and quality of the cable are effectively guaranteed.
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Description

Technical Field

[0001] This invention belongs to the field of hot melt adhesive removal technology, specifically relating to a device and method for removing hot melt adhesive from smooth aluminum sheathed cables. Background Technology

[0002] Aluminum-sheathed cables are cables with an outer aluminum sheath to enhance their resistance to mechanical damage, shielding performance, and corrosion resistance. Hot melt adhesive is an adhesive that melts upon heating and cures upon cooling; it is commonly used for bonding, sealing, or waterproofing the interior of cables or joints. Hot melt adhesive must be cleaned before further processing, including maintenance, repair, or connection.

[0003] Existing technologies typically use heat to scrape away the hot melt adhesive, but this may damage the insulation layer of the aluminum-sheathed cable, affecting the cable's insulation performance and reducing its practicality. This phenomenon has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for removing hot melt adhesive from smooth aluminum sheathed cables, so as to at least solve or improve one of the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: In a first aspect, the present invention provides a device for removing hot melt adhesive from smooth aluminum sheathed cables, comprising an aluminum sheath detection tube for accommodating the passage of aluminum sheathed cables, wherein the aluminum sheath detection tube is provided with a flexible contact and adhesive guiding unit, a defect detection and response unit, a fixed-point adhesive application execution unit, and an adhesive supply and pressure balancing unit. The flexible contact and adhesive guiding unit includes a flexible rubber hose, which is arranged inside the aluminum sheath detection tube and in direct contact with the outer surface of the aluminum sheath cable, and is used to respond to local deformation caused by defects on the surface of the aluminum sheath. The defect detection and response unit includes pressure sensors distributed in a ring on the inner wall of the aluminum sheath detection tube and multiple elastic glue storage elements. Each elastic glue storage element corresponds to a pressure sensor and expands when the flexible rubber hose undergoes local deformation to draw in viscous insulating glue from the glue supply and pressure balance unit. At the same time, the pressure sensor detects the pressure change at the deformation point and generates a trigger signal. The fixed-point glue application unit includes a drive mechanism and a linear transmission assembly connected to each elastic glue storage element. In response to a trigger signal, the drive mechanism compresses the corresponding elastic glue storage element through the linear transmission assembly to release the viscous insulating glue to the deformation point of the flexible rubber hose. The adhesive supply and pressure balancing unit includes a viscous insulating adhesive source, a pumping assembly, and a pressure regulating assembly. It is connected to an elastic adhesive storage element through a pipeline to continuously supply viscous insulating adhesive and maintain stable internal pressure during the adhesive replenishment process.

[0006] This invention constructs an intelligent dynamic adhesive application closed-loop system by incorporating a flexible contact and adhesive guiding unit, a defect detection and response unit, a targeted adhesive application execution unit, and an adhesive supply and pressure balancing unit. Its core beneficial effects are: By using flexible rubber hoses in flexible contact with the aluminum sheath, the traditional rigid scraping or heating methods are replaced, fundamentally avoiding physical or thermal damage to the outer insulation layer of the aluminum sheath during hot melt adhesive removal, thus ensuring the insulation integrity of the cable. The system's precise placement of pressure sensors and elastic adhesive storage elements allows for accurate detection of localized depressions and defects on the aluminum sheath surface, initiating the adhesive application process only at those specific locations. This achieves precise "fix where the problem is" operation, significantly reducing the amount of adhesive used and avoiding the waste and contamination associated with global coating. The system integrates detection, decision-making, execution, and assurance. Defect signals automatically trigger adhesive application, and a pressure balancing mechanism ensures the reliability of the action, improving repair efficiency and quality consistency, reducing manual intervention, and demonstrating a high degree of intelligence.

[0007] Furthermore, the elastic storage element is an elastic folded capsule, and the inner wall of the aluminum sheath detection tube is provided with an arc-shaped inner groove that matches the elastic folded capsule, with the elastic folded capsule set inside the arc-shaped inner groove.

[0008] Specifically defining the elastic storage element as an elastic folded capsule set within an arc-shaped inner groove offers several advantages: this structure provides a stable space for the expansion and contraction of the folded capsule, ensuring smooth operation without misalignment. The arc-shaped inner groove allows the folded capsule to smoothly conform to the inner wall of the aluminum-sheathed detection tube, preventing interference with cable passage and optimizing space utilization, resulting in a more compact overall structure.

[0009] Furthermore, the linear transmission assembly includes a wire rope, a winding wheel, and a rotating shaft. One end of the wire rope is connected to an elastic storage element, and the other end is wound around the winding wheel. The drive mechanism is used to drive the rotating shaft to rotate, thereby driving the winding wheel to wind and unwind the wire rope. The elastic storage element is connected to a connecting block, and the end of the wire rope is connected to the connecting block.

[0010] Specifically defining the linear transmission assembly as a wire rope, a winding wheel, and a rotating shaft, and further specifying the connection via a connecting block, offers the following advantages: it provides a simple, reliable, and cost-effective linear motion conversion solution. By rotating the wire rope, precise and controllable linear compression of the elastic folding bladder is achieved, resulting in high force transmission efficiency. The connecting block design makes the connection between the wire rope and the elastic folding bladder more robust and stable, ensuring connection reliability under repeated pulling and compression actions and extending service life.

[0011] Furthermore, the pressure regulation assembly includes a pressure regulating valve and a check valve. The pressure regulating valve is located on a pipe connected to the viscous insulating adhesive source, and the check valve is located in the flow channel from the adhesive supply and pressure balancing unit to the elastic adhesive storage element.

[0012] The pressure regulation component includes a pressure regulating valve and a one-way valve. Its advantages are as follows: the pressure regulating valve automatically introduces air into the system during adhesive discharge, effectively balancing the negative pressure generated by the adhesive discharge and ensuring that the viscous insulating adhesive can be continuously and smoothly extruded, avoiding discharge obstruction or interruption caused by vacuum resistance. The one-way valve prevents backflow of adhesive or air under pressure fluctuations, ensuring that the adhesive can only be pressed unidirectionally from the elastic storage element to the defective area, avoiding "backflow" and guaranteeing the accuracy and reliability of the dosage for each adhesive replenishment operation.

[0013] Furthermore, the adhesive supply and pressure balancing unit also includes a cylindrical sleeve surrounding the aluminum sheath detection tube. The cylindrical sleeve forms a temporary storage cavity for insulating adhesive. The cylindrical sleeve is connected to the main adhesive source through a supply branch pipe and a supply pipe equipped with a pump.

[0014] The unit for limiting adhesive supply and pressure balancing also includes a surrounding cylindrical sleeve and its internal insulating adhesive storage chamber. Its advantages are: the surrounding cylindrical sleeve acts as a local adhesive reservoir, enabling rapid replenishment of adhesive to multiple surrounding elastic adhesive storage elements, thus shortening the adhesive replenishment response time. This structure achieves distributed storage and localized supply of adhesive, reducing the delay and pressure loss caused by long-distance pumping from the main adhesive source, and improving the system's response speed and adhesive replenishment efficiency.

[0015] Furthermore, the device also includes a cleaning device located on one side of the aluminum sheath detection tube. The cleaning device includes a cleaning head that can be driven to move axially and rotate, used to clean the inner wall of the cable. The cleaning head is conical, and its outer wall is provided with a cleaning brush. The cleaning device is equipped with a catapult mechanism that drives the conical body to move axially and a rotary drive mechanism that drives its rotation.

[0016] Adding a cleaning device, specifically a conical cleaning head with a cleaning brush, offers the advantage of integrating "repair" and "cleaning" functions into a single unit, providing a complete cable pretreatment solution. It effectively removes solidified hot melt adhesive residue from the inner wall of the cable before and after adhesive repair, creating a clean surface condition for subsequent cable connection or sealing operations. The conical structure facilitates access to the cable's interior, and its combined rotational and axial movement, along with the cleaning brush, enables thorough, all-around scraping and cleaning of the cable's inner wall, leaving no blind spots.

[0017] Furthermore, the device also includes a control system, which is connected to the pressure sensor and the drive mechanism and is configured to: receive the pressure signal from the pressure sensor, and when the pressure signal value is lower than a preset threshold, control the drive mechanism to start and drive the corresponding linear transmission component to move.

[0018] The benefits of adding a control system and its control logic are as follows: it automates and intelligentizes the glue application process. By preset pressure thresholds, the system can objectively and accurately determine the presence of defects, eliminating the subjectivity and instability of manual inspection. This control logic seamlessly integrates hardware detection with software decision-making, forming a complete "perception-judgment-execution" closed loop, ensuring the timeliness and accuracy of glue application actions, and greatly improving the intelligence level and operational reliability of the device.

[0019] Furthermore, the flexible contact and adhesive-conducting unit is made of chemically resistant synthetic rubber material.

[0020] The advantages of using specific materials for the flexible contact and adhesive-conducting units are as follows: Chemical resistance ensures that the flexible rubber hose will not swell, age, or deteriorate when in prolonged contact with adhesive insulating materials and other chemicals, guaranteeing its service life and long-term testing accuracy. The highly resilient synthetic rubber material can quickly return to its original shape after the external force is removed, ensuring sensitive detection of every defect and avoiding permanent deformation and detection failure due to material fatigue.

[0021] In a second aspect, the present invention provides a method for removing hot melt adhesive from smooth aluminum-sheathed cables, using the aforementioned apparatus, comprising the following steps: Detecting defects on the surface of aluminum-sheathed cables using flexible contact and adhesive-conducting units; The defect detection and response unit responds to the defect and prepares adhesive insulating glue. The targeted adhesive application unit precisely releases viscous insulating adhesive to the detected defect location.

[0022] In summary, this invention employs a dynamic adhesive filling system consisting of a flexible rubber hose, an elastic folding capsule, a pressure sensor, and an adhesive control mechanism. This system can automatically identify the location of surface defects in the aluminum sheath and precisely release adhesive for filling and repair. Compared to traditional manual inspection and adhesive filling methods, this invention achieves integrated closed-loop control of defect detection, response identification, automatic adhesive filling, and pressure balancing. This significantly improves the intelligence and automation of adhesive filling and repair of aluminum sheathed cables, increases repair efficiency and adhesive uniformity, and reduces the risks of missed coating, mis-coating, and secondary processing, demonstrating promising prospects for industrial applications. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the aluminum sheath detection tube structure of the present invention; Figure 3 This is a schematic diagram of the installation of the elastic folding bladder of the present invention; Figure 4 This is the invention Figure 3 Schematic diagram of area A in the middle; Figure 5 This is a schematic diagram of the cleaning device structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the cleaning device of the present invention; Figure 7 This is a schematic diagram of the toothed disc structure of the present invention; In the diagram: 1. Aluminum sheathed detection tube; 4. Supply pipe; 41. Pump; 42. Supply branch pipe; 43. Pressure stabilizing valve; 11. Cylindrical sleeve; 12. Insulating adhesive storage chamber; 13. Flexible rubber hose; 14. Arc-shaped inner groove; 15. Elastic folding bladder; 151. Connecting block; 16. One-way valve; 17. Steel wire rope; 171. Winding wheel; 172. Rotating shaft; 91. Pressure sensor; 92. Adhesive insulating adhesive pump; 93. Connecting hose; 99. Grinding block; 5. Cleaning device; 51. Conical body; 52. Cleaning brush; 53. Angled groove; 54. Gear disc; 55. Motor 1; 56. Gear; 57. Rope disc; 571. Motor 2; 58. Pipeline; 581. Air pump; 59. Pulling rope; 541. Angled tooth. Detailed Implementation

[0024] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-7 The present invention provides the following technical solution: A device for removing hot melt adhesive from aluminum sheathed cables includes an aluminum sheath detection tube 1, a grinding block 99 inside the aluminum sheath detection tube 1, and cylindrical sleeves 11 uniformly arranged on the outer wall of the aluminum sheath detection tube 1. A supply branch pipe 42 is fixed to one end of the cylindrical sleeve 11 by welding, and a supply pipe 4 is fixed to one end of the supply branch pipe 42 by welding. One end of the supply pipe 4 is connected to the material dispensing shell, and a pumping pump 41 is installed on the supply pipe 4. The pumping pump 41 is used to pump viscous insulating adhesive. The aluminum sheath detection tube 1 is equipped with a flexible rubber hose 13 inside. Pressure sensors 91 are installed in a ring on the inner wall of the aluminum sheath detection tube 1. A flow channel is provided between the inner wall of the aluminum sheath detection tube 1 and the insulating glue storage cavity 12. A viscous insulating glue pump 92 is provided in the flow channel. A connecting hose 93 is connected between the viscous insulating glue pump 92 and the inner wall of the flexible rubber hose 13. The inner wall of the aluminum sheathed detection tube 1 is uniformly provided with arc-shaped inner grooves 14. An elastic folding bladder 15 is fixed to the inner wall of the arc-shaped inner groove 14 by adhesive bonding. A connecting block 151 is installed on one side of the elastic folding bladder 15. A steel wire rope 17 is connected to one end of the connecting block 151. The steel wire rope 17 slides through the inner wall of the aluminum sheathed detection tube 1. The outer wall of the aluminum sheathed detection tube 1 is rotatably mounted with a rotating shaft 172 via a bracket. A winding wheel 171 is sleeved on the outside of the rotating shaft 172. The steel wire rope 17 is wound on the winding wheel 171. A pressure stabilizing valve 43 is installed on the supply pipe 4. A cleaning device 5 is provided on one side of the aluminum sheath detection tube 1. A cone 51 is movably provided on one side of the cleaning device 5. A pull rope 59 is connected to one side of the cone 51. The pull rope 59 passes through the outer wall of the cleaning device 5. Cleaning brushes 52 are evenly provided on the outer wall of the cone 51. A second motor 571 is provided inside the cleaning device 5. A rope disc 57 is connected to the output end of the second motor 571. The pull rope 59 is wound on the rope disc 57. The pull rope 59 pulls the cone 51 so that it can return to one end after cleaning. By starting the second motor 571, the rope disc 57 is rotated, which allows the cone 51 to retract. The inner wall of the cleaning device 5 is rotatably equipped with a toothed disc 54, which has holes. The cleaning device 5 also has a pipe 58 installed inside, which is aligned with the holes. One end of the pipe 58 is equipped with an air pump 581. The cone 51 has evenly spaced inclined grooves 53 on one side. The toothed disc 54 has inclined teeth 541 on one side, and the inclined grooves 53 and inclined teeth 541 are in contact. The toothed disc 54 has a gear 56 on one side, which meshes with the toothed disc 54. By starting the air pump 581, the cone 51 is ejected. The power of its movement can drive the gear 56 to rotate through the motor 55, so that the toothed disc 54 drives the cone 51 to rotate, allowing it to rotate and clean during feeding. The working method of a device for removing hot melt adhesive from smooth aluminum sheathed cables includes the following steps: S1. Part of the viscous insulating adhesive recovered from the aluminum sheath detection tube 1 is pumped into the insulating adhesive temporary storage chamber 12 through the supply pipe 4 for temporary storage. When it is necessary to replenish the viscous insulating adhesive, the pumping pump 41 is started to make it enter the supply branch pipe 42, and finally send it into the cylindrical sleeve 11 and store it again in the insulating adhesive temporary storage chamber 12. S2. When the aluminum sheath enters the flexible rubber hose 13, its cross-section should be approximately a smooth circle. If there are surface defects or gaps in the aluminum sheath, a depression will occur at a certain point in the flexible rubber hose 13, causing that point to detach from the elastic folding bladder 15 and expand. After expansion, a negative pressure is generated inside the elastic folding bladder 15, which draws in the viscous insulating glue in the temporary storage chamber 12 through the flow channel for subsequent defect repair. The pressure sensor 91 and the pressure strain gauge sense the pressure change at the depression location and trigger the control system to start the glue repair mechanism. S3. After the control system is started, the torque device drives the rotating shaft 172 to rotate, which drives the winding wheel 171 to tighten the steel wire rope 17, causing the connecting block 151 to move upward and compress the elastic folding bladder 15. The compressed elastic folding bladder 15 squeezes out the sticky insulating glue inside and injects it into the recess of the flexible rubber hose 13 to repair the defective position of the aluminum sheath. S4. During the glue discharge process, the pressure regulating valve 43 works to allow air to enter the supply pipe 4 and replenish the insulating glue storage chamber 12, maintaining internal pressure balance. The one-way valve 16 prevents air from entering the storage chamber in reverse, ensuring that the glue can only be expelled rather than sucked back, effectively controlling the glue discharge process.

[0026] S3 specifically refers to the following: When a surface defect is detected in the aluminum sheath, causing a local dent in the flexible rubber hose 13, the elastic folding bladder 15 automatically expands at the dent, and the system enters the glue replenishment process. The pressure sensor 91 and the pressure strain gauge detect a dent in the flexible rubber hose 13, and the control system receives an abnormal pressure signal. The rotating shaft 172 starts to rotate under the drive of external torque, driving the winding wheel 171 to rotate synchronously. As the winding wheel 171 rotates, the steel wire rope 17 wound on it is gradually tightened. The steel wire rope 17 pulls the connecting block 151, causing the connecting block to drive the elastic folding bladder 15 to be compressed longitudinally. The compressed elastic folding bladder 15 squeezes out the viscous insulating glue stored inside through the inner cavity channel. The squeezed glue enters the dent in the flexible rubber hose 13. After the elastic folding bladder 15 completes the glue release, it remains in a contracted state. Subsequently, by rotating the rotating shaft 172 in the opposite direction to loosen the steel wire rope 17, the elastic folding bladder 15 is reset and ready for the next action.

[0027] During construction or encapsulation, hot melt adhesive often seeps into the gap between the aluminum sheath and the internal insulation of the cable, forming local adhesive residue that solidifies on the inner wall surface of the cable. At this time, it is necessary to clean the inner wall. The air pump 581 is started to eject the cone 51, so that the cleaning brush 52 can clean the inner wall and prevent the adhesive residue from solidifying on the inner wall surface of the cable.

[0028] A portion of the viscous insulating adhesive from the aluminum sheath detection tube 1 is pumped into the insulating adhesive storage chamber 12 via the supply pipe 4 for temporary storage, facilitating rapid replenishment of the aluminum sheath later. During use, the pumping pump 41 is activated to pump the viscous insulating adhesive. The pumped adhesive enters the supply branch pipe 42 and is then fed into the cylindrical sleeve 11, subsequently entering the insulating adhesive storage chamber 12. If surface defects are found in the aluminum sheath, gaps will be visible in the cross-section of the transport pipe. At this point, a depression will appear in the flexible rubber hose 13, making it less of a smooth circle. The pressure sensor 91 detects the pressure change at this location, and the viscous insulating adhesive pump delivers the adhesive into the flexible rubber hose 13. When the aluminum sheath enters… After the flexible rubber hose 13 is in place, its cross-section is approximately circular under normal circumstances. Initially, the elastic folding bladder 15 is compressed and tightly fitted to the outer wall of the flexible rubber hose 13. If surface defects appear on the aluminum sheath, gaps will be visible in the cross-section of the transport pipe. In this case, the flexible rubber hose 13 will become concave at a certain point, no longer a smooth circle, but a circle with a concave area. At this point, the elastic folding bladder 15 at that location will expand due to the lack of force. After expansion, there will be negative pressure inside, which will draw the viscous insulating adhesive from the insulating adhesive storage cavity 12 into its interior through the flow channel. This facilitates the judgment of the uniformity of the aluminum sheath and the application of more adhesive to its surface. The insulating adhesive enables it to provide insulation. When the steel wire rope 17 is pulled upwards, the connecting block 151 moves upwards, thereby compressing the elastic folding bladder 15. At this time, the viscous insulating adhesive inside the elastic folding bladder 15 is squeezed out and enters the flexible rubber hose 13 to replenish the viscous insulating adhesive at the defective locations of the flexible rubber hose 13. After the elastic folding bladder 15 expands, the external torque drives the rotating shaft 172 to rotate, causing the winding wheel 171 to rotate and pull the steel wire rope 17 upwards, facilitating the compression of the elastic folding bladder 15. Normally, the pressure strain gauge and the flexible rubber hose 13 are in close contact with each other, and there is a certain pressure between them. When the surface of the aluminum sheath at a certain point is insufficient, the flexible rubber... The flexible hose 13 will be concave downwards, at which time the elastic pleated bladder 15 will expand, and it will not have a large elastic force. The pressure at the bottom sensed by the pressure strain gauge will decrease. At this time, the pressure trigger signal will be transmitted to the control system, driving the external torque to rotate the shaft 172, so that the elastic pleated bladder 15 will be compressed and the sticky insulating glue will be squeezed out, thus realizing the identification of the triggering time. The pressure regulating valve 43 allows air to enter the supply pipe 4 and then replenish the insulating glue storage chamber 12 to balance the internal pressure. When the elastic pleated bladder 15 contracts, the one-way valve 16 cannot pump air into the insulating glue storage chamber 12. At this time, the pressure regulating valve 43 does not work, which facilitates the smooth discharge of the sticky insulating glue from the insulating glue storage chamber 12.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 invention, 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 invention.

[0030] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A device for removing hot melt adhesive from smooth aluminum sheathed cables, characterized in that, Includes an aluminum sheath detection tube (1) for accommodating aluminum sheathed cables, and the aluminum sheath detection tube (1) is equipped with a flexible contact and adhesive guiding unit, a defect detection and response unit, a fixed-point adhesive application unit, and an adhesive supply and pressure balancing unit. The flexible contact and adhesive guiding unit includes a flexible rubber hose (13), which is arranged inside the aluminum sheath detection tube (1) and in direct contact with the outer surface of the aluminum sheath cable, and is used to respond to defects on the surface of the aluminum sheath and cause local deformation. The defect detection and response unit includes pressure sensors (91) distributed in a ring on the inner wall of the aluminum sheath detection tube (1) and multiple elastic glue storage elements. Each elastic glue storage element corresponds to a pressure sensor (91) and expands when the flexible rubber hose (13) undergoes local deformation to draw in viscous insulating glue from the glue supply and pressure balance unit. At the same time, the pressure sensor (91) detects the pressure change at the deformation point and generates a trigger signal. The fixed-point glue application unit includes a drive mechanism and a linear transmission assembly connected to each elastic glue storage element. In response to a trigger signal, the drive mechanism compresses the corresponding elastic glue storage element through the linear transmission assembly to release the viscous insulating glue to the deformation point of the flexible rubber hose (13). The adhesive supply and pressure balancing unit includes a viscous insulating adhesive source, a pumping assembly, and a pressure regulating assembly. It is connected to an elastic adhesive storage element through a pipeline to continuously supply viscous insulating adhesive and maintain stable internal pressure during the adhesive replenishment process.

2. The hot melt adhesive removal device according to claim 1, characterized in that, The elastic storage element is an elastic folded bladder (15). The inner wall of the aluminum sheath detection tube (1) is provided with an arc-shaped inner groove (14) that is compatible with the elastic folded bladder (15). The elastic folded bladder (15) is set in the arc-shaped inner groove (14).

3. The hot melt adhesive removal device according to claim 1 or 2, characterized in that, The linear transmission assembly includes a wire rope (17), a winding wheel (171), and a rotating shaft (172). One end of the wire rope (17) is connected to an elastic storage element, and the other end is wound around the winding wheel (171). The drive mechanism is used to drive the rotating shaft (172) to rotate, thereby driving the winding wheel (171) to wind and unwind the wire rope (17). The elastic storage element is connected to a connecting block (151), and the end of the wire rope (17) is connected to the connecting block (151).

4. The hot melt adhesive removal device according to claim 1, characterized in that, The pressure regulation assembly includes a pressure regulating valve (43) and a check valve (16). The pressure regulating valve (43) is located on a pipe connected to the source of the viscous insulating adhesive, and the check valve (16) is located in the flow channel from the adhesive supply and pressure balancing unit to the elastic adhesive storage element.

5. The hot melt adhesive removal device according to claim 1, characterized in that, The adhesive supply and pressure balancing unit also includes a cylindrical sleeve (11) surrounding the aluminum sheath detection tube (1). An insulating adhesive storage cavity (12) is formed inside the cylindrical sleeve (11). The cylindrical sleeve (11) is connected to the main adhesive source through a supply branch pipe (42) and a supply pipe (4) equipped with a pump (41).

6. The hot melt adhesive removal device according to claim 1, characterized in that, The device also includes a cleaning device (5) disposed on one side of the aluminum sheath detection tube (1). The cleaning device (5) includes a cleaning head that can be driven to move and rotate axially for cleaning the inner wall of the cable. The cleaning head is a cone (51) with a cleaning brush (52) on its outer wall.

7. The hot melt adhesive removal device according to claim 1, characterized in that, The cleaning device (5) is equipped with a catapult mechanism that drives the cone (51) to move axially and a rotary drive mechanism that drives it to rotate.

8. The hot melt adhesive removal device according to claim 1, characterized in that, The device also includes a control system, which is connected to the pressure sensor (91) and the drive mechanism and is configured to: receive the pressure signal from the pressure sensor (91) and, when the pressure signal value is lower than a preset threshold, control the drive mechanism to start and drive the corresponding linear transmission component to move.

9. The hot melt adhesive removal device according to claim 1, characterized in that, The flexible contact and adhesive-conducting unit is made of chemically resistant synthetic rubber.

10. A method for removing hot melt adhesive from smooth aluminum-sheathed cables, characterized in that, Using the apparatus as described in any one of claims 1 to 9 includes the following steps: Detecting defects on the surface of aluminum-sheathed cables using flexible contact and adhesive-conducting units; The defect detection and response unit responds to the defect and prepares adhesive insulating glue. The targeted adhesive application unit precisely releases viscous insulating adhesive to the detected defect location.