Insulating sleeve expanding, shaping and cooling device

By setting a flaring copper head and an anti-shrink clamp in the insulating sleeve expansion and shaping cooling device, hot flaring and air cooling can be carried out simultaneously, which solves the problem of low efficiency caused by waiting for cooling and shaping in the existing technology, and improves the efficiency and pass rate of expansion and shaping.

CN224391903UActive Publication Date: 2026-06-23ANHUI ZHONGHUI JIYUAN ENERGY SAVING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHONGHUI JIYUAN ENERGY SAVING TECHNOLOGY CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technology, after the insulating sleeve is expanded, it needs to wait for air cooling and shaping, which leads to low work efficiency, and the expansion is prone to failure due to cold shrinkage.

Method used

An insulating sleeve diameter expansion and shaping cooling device was designed. By setting a flaring copper head and an anti-shrinkage clamp on the connecting strip, hot flaring and air cooling can be carried out simultaneously. The efficiency is improved by utilizing the cooling shaping time, and the anti-shrinkage clamp prevents cold shrinkage.

Benefits of technology

This method enables simultaneous hot flaring and cooling during the expansion and shaping process of insulating bushings, improving work efficiency and reducing the rate of defective flaring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of insulation sleeve expanding sizing cooling device.It is related to flaring sizing technical field.The insulation sleeve expanding sizing cooling device includes folding frame, the upper portion of folding frame is equipped with rectangular frame body, the side of folding frame is rotatably installed with steering shaft, the end of steering shaft close to rectangular frame body is fixedly installed with link strip, the side of link strip away from rectangular frame body is fixedly installed with first rodless cylinder and second rodless cylinder, the slider of first rodless cylinder is fixedly installed with heat conduction rod, the side of heat conduction rod close to link strip is fixedly installed with flaring copper head, the slider of second rodless cylinder is fixedly installed with anti-shrink chuck, flaring copper head and anti-shrink chuck are all through link strip and not contact with link strip.The utility model has the advantages of improving expanding sizing efficiency to a certain extent, good utilization of cooling waiting time.
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Description

Technical Field

[0001] This utility model relates to the field of flaring and shaping technology, specifically to a cooling device for flaring and shaping insulating sleeves. Background Technology

[0002] Insulating sleeves are tubular devices used to wrap the conductors of wires, cables, or electrical equipment, providing insulation and physical protection. They are made of various materials, with the appropriate material selected based on the specific application. Common materials include PVC sleeves and fiberglass sleeves. During the production of PVC insulating sleeves, to ensure a strong seal between the ends and external joints and to improve the mechanical connection strength, the ends are generally enlarged to allow for a proper fit with external joints and achieve the aforementioned effects.

[0003] Currently, the common method for expanding the diameter of the sleeve involves inserting a flaring cone with a certain temperature into the end of the sleeve a certain distance, using heating to gradually expand the diameter of the sleeve end, and then air-cooling the expanded end to achieve the desired shape. However, conventional air cooling requires waiting for the flaring to be completed before blowing air to cool it down, and only after cooling can the next flaring and shaping work be carried out. The waiting time is relatively long, which reduces work efficiency.

[0004] Therefore, it is necessary to provide a new insulating sleeve diameter expansion and shaping cooling device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an insulating sleeve expansion and shaping cooling device that can improve the efficiency of expansion and shaping to a certain extent and make good use of the cooling and shaping waiting time.

[0006] To solve the above-mentioned technical problems, the insulating sleeve expansion and shaping cooling device provided by this utility model includes: a bending frame, a rectangular frame above the bending frame, a steering shaft rotatably mounted on one side of the bending frame, a connecting strip fixedly mounted on the end of the steering shaft near the rectangular frame, a first rodless cylinder and a second rodless cylinder fixedly mounted on the side of the connecting strip away from the rectangular frame, a heat-conducting rod fixedly mounted on the slider of the first rodless cylinder, a flared copper head fixedly mounted on the side of the heat-conducting rod near the connecting strip, and a... The anti-shrink clamp head and the flared copper head both penetrate the connecting strip and do not contact the connecting strip; the rectangular frame is provided with two clamping mechanisms to clamp and fix the two insulating sleeves simultaneously; two connecting ring tubes are provided between the connecting strip and the rectangular frame, and multiple air distribution pipes arranged in a ring array are fixedly installed in each of the two connecting ring tubes. Multiple air nozzles are fixedly installed on each of the multiple air distribution pipes. The two connecting ring tubes are respectively adapted to the two clamping mechanisms. The folding frame is provided with an air supply system that can introduce cooling airflow into the two connecting ring tubes.

[0007] Preferably, each of the clamping mechanisms includes a connecting sleeve, which is fixedly installed in the rectangular frame. A single-axis cylinder is fixedly installed at the top and bottom of the connecting sleeve. The output shafts of the two single-axis cylinders are movably connected to the top and bottom of the connecting sleeve, respectively. Two clamping plates are provided inside the connecting sleeve, and the output shafts of the two single-axis cylinders are fixedly connected to the two clamping plates, respectively.

[0008] Preferably, two protruding plates are fixedly installed on the side of the rectangular frame near the connecting strip, and a dual-axis cylinder is fixedly installed on the side of the two protruding plates that are far apart from each other. The output shafts of the two dual-axis cylinders pass through the two protruding plates respectively and are connected to the corresponding sliding rods of the protruding plates. End clamps are fixedly installed on the output shafts of the two dual-axis cylinders.

[0009] Preferably, the air supply system includes a fan, which is fixedly installed on the folding frame. A main air guide pipe is fixedly installed on the air outlet of the fan. Two secondary air guide pipes are fixedly installed on one end of the main air guide pipe. The other ends of the two secondary air guide pipes pass through the rectangular frame and are fixedly connected to the corresponding connecting ring pipe. Each of the two secondary air guide pipes is provided with an air valve.

[0010] Preferably, the connecting strip has two movable holes, and the flared copper head and the anti-shrink clip are respectively inserted into the two movable holes without contacting the inner wall of the movable holes. The diameter of the movable hole corresponding to the flared copper head is larger than the outer diameter of the heat-conducting rod.

[0011] Preferably, a servo motor is fixedly installed on the side of the folding frame away from the rectangular frame, and gears are fixedly sleeved on both the output shaft of the servo motor and the steering shaft, with the two gears meshing with each other.

[0012] Preferably, a guide ring is fixedly installed on the side of the connecting sleeve away from the connecting strip, and the guide ring and the connecting ring tube are on the same horizontal axis.

[0013] Compared with related technologies, the insulating sleeve diameter expansion and shaping cooling device provided by this utility model has the following beneficial effects:

[0014] This invention, by setting a flaring copper head and an anti-shrinkage clamp on the connecting strip, allows for simultaneous hot flaring and air cooling and shaping of the previously flared insulating sleeve on one side. The two processes can be carried out concurrently, eliminating the need to wait for cooling and shaping before proceeding to the next flaring process. This fully utilizes the time spent waiting for cooling and shaping, significantly improving the efficiency of flaring, shaping, and cooling the insulating sleeve. Furthermore, the anti-shrinkage clamp installed during shaping prevents the sleeve from shrinking due to cold, thus improving the success rate of flaring. Attached Figure Description

[0015] Figure 1 One of the structural schematic diagrams of the insulating sleeve diameter expansion and shaping cooling device provided by this utility model;

[0016] Figure 2 The second schematic diagram of the insulating sleeve diameter expansion and shaping cooling device provided by this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the folding frame and connecting strip in this utility model;

[0018] Figure 4 This is a cross-sectional view of the rectangular frame in this utility model;

[0019] Figure 5 This is a cross-sectional view of the connecting sleeve in this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure of the main air guide pipe, the secondary air guide pipe, and the connecting ring pipe in this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the air duct and the air nozzle in this utility model.

[0022] The following are the labels in the diagram: 1. Folding frame; 2. Steering shaft; 3. Connecting strip; 4. First rodless cylinder; 5. Heat conduction rod; 6. Flared copper head; 7. Second rodless cylinder; 8. Anti-shrink clamp; 9. Rectangular frame; 10. Connecting sleeve; 11. Single-axis cylinder; 12. Pressure plate; 13. Protruding plate; 14. Double-axis cylinder; 15. End clamping plate; 16. Air distribution duct; 17. Air nozzle; 18. Fan; 19. Main air guide pipe; 20. Secondary air guide pipe; 21. Connecting ring pipe. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 1-7 . The insulating sleeve expansion and shaping cooling device includes: a folding frame 1, with a rectangular frame 9 above the folding frame 1. A steering shaft 2 is rotatably mounted on one side of the folding frame 1. A connecting strip 3 is fixedly mounted on the end of the steering shaft 2 near the rectangular frame 9. A servo motor is fixedly mounted on the side of the folding frame 1 away from the rectangular frame 9. Gears are fixedly mounted on both the output shaft and the steering shaft 2. The two gears mesh to drive the steering shaft 2 to rotate. To improve the stability of the rotation of the steering shaft 2, multiple reinforcing ribs are fixedly mounted on the steering shaft 2. Each reinforcing rib has two balls embedded in it. The balls are in contact with one side of the folding frame 1. A first rodless cylinder 4 and a second rodless cylinder 7 are fixedly mounted on the side of the connecting strip 3 away from the rectangular frame 9. A heat-conducting rod 5 is fixedly mounted on the slider of the first rodless cylinder 4. A flared copper head 6 is fixedly mounted on the side of the heat-conducting rod 5 near the connecting strip 3. The heat-conducting rod 5 is a common heating element on the market, which can conduct heat to the flared copper head 6, thereby forming a heat flaring effect. An anti-shrinkage clamp 8 is fixedly installed on the slider of cylinder 7. This anti-shrinkage clamp 8 can be inserted into the sleeve that has already been flared, thus preventing the flare from shrinking during air blowing and shaping. Furthermore, two movable holes are opened on the connecting strip 3. The flared copper head 6 and the anti-shrinkage clamp 8 are respectively inserted into the two movable holes without contacting the inner wall of the movable holes, thereby avoiding direct contact with the connecting strip 3. Moreover, the diameter of the movable hole corresponding to the flared copper head 6 is larger than the outer diameter of the heat-conducting rod 5, allowing the heat-conducting rod 5 to also... It can pass through smoothly; two clamping mechanisms are provided inside the rectangular frame 9 to clamp and fix the two insulating sleeves at the same time; two connecting ring pipes 21 are provided between the connecting strip 3 and the rectangular frame 9, and multiple air distribution pipes 16 arranged in a ring array are fixedly installed in the two connecting ring pipes 21. Multiple air nozzles 17 are fixedly installed on the multiple air distribution pipes 16. The two connecting ring pipes 21 are respectively adapted to the two clamping mechanisms. The folding frame 1 is provided with an air supply system that can introduce cooling airflow into the two connecting ring pipes 21.

[0025] Each of the clamping mechanisms mentioned above includes a connecting sleeve 10 fixedly installed inside the rectangular frame 9. A single-axis cylinder 11 is fixedly installed at the top and bottom of the connecting sleeve 10. The output shafts of the two single-axis cylinders 11 are movably connected to the top and bottom of the connecting sleeve 10, respectively. Two clamping plates 12 are provided inside the connecting sleeve 10. The output shafts of the two single-axis cylinders 11 are fixedly connected to the two clamping plates 12, respectively, to clamp the insulating sleeve and provide a fixing effect for flaring and cooling shaping.

[0026] In this method, to ensure that the enlarged portion of the insulating sleeve remains consistent, two protruding plates 13 are fixedly installed on the side of the rectangular frame 9 near the connecting strip 3. A dual-axis cylinder 14 is fixedly installed on the side of the two protruding plates 13 that are far apart from each other. The output shafts of the two dual-axis cylinders 14 pass through the two protruding plates 13 respectively and are connected to the sliding rods of the corresponding protruding plates 13. An end clamping plate 15 is fixedly installed on the output shaft of the two dual-axis cylinders 14. This ensures that the starting end of each insulating sleeve is in the same position, thereby ensuring that the insertion length of the flared copper head 6 is consistent.

[0027] The aforementioned air supply system includes a fan 18 fixedly installed on the folding frame 1, with a main air guide pipe 19 fixedly installed at its air outlet. Two secondary air guide pipes 20 are fixedly installed at one end of the main air guide pipe 19. The other ends of the two secondary air guide pipes 20 pass through the rectangular frame 9 and are fixedly connected to the corresponding connecting ring pipe 21. Each of the two secondary air guide pipes 20 is equipped with an air valve. By controlling the opening and closing of the two air valves, cooling airflow is introduced into the corresponding connecting ring pipe 21.

[0028] In addition, a guide ring is fixedly installed on the side of the connecting sleeve 10 away from the connecting strip 3. The guide ring and the connecting ring tube 21 are on the same horizontal axis. This ensures that after the insulating sleeve is inserted into the connecting sleeve 10, its axis is coaxial with the flared copper head 6 and the anti-shrink clamp head 8, thus ensuring the flaring center.

[0029] The working principle of the insulating sleeve diameter expansion and shaping cooling device provided by this utility model is as follows:

[0030] During the preparation phase, the output shafts of the two dual-shaft cylinders 14 are first extended, so that the two end plates 15 block the two connecting sleeves 10 on the side near the connecting strip 3. At this time, the distance between the end plates 15 and the connecting sleeves 10 is the length of the insulating sleeve that needs to be expanded. In the initial state, the two air valves are normally closed.

[0031] During the diameter expansion and shaping process, two insulating sleeves are first taken out, then passed through two guide rings and entered into the corresponding connecting sleeves 10. After the ends of the two insulating sleeves contact the two end clamping plates 15, the output shafts of four single-axis cylinders 11 are extended, and the corresponding two clamping plates 12 move closer to each other, finally clamping the insulating sleeves. Then, the output shafts of two double-axis cylinders 14 are retracted. At this time, the flared copper head 6 and the anti-shrink clamping head 8 correspond to the two insulating sleeves respectively. Then, the heat-conducting rod 5 is activated, and the heat-conducting rod 5 transfers heat to the flared copper head 6. Next, the first rodless cylinder 4 corresponding to the flared copper head 6 is activated, and the slider on it moves the flared copper head 6 horizontally. When it enters the insulating sleeve and contacts the inner wall of the insulating sleeve, the end of the sleeve will be softened through heat conduction, thereby achieving the diameter expansion effect.

[0032] After the expansion is completed, the corresponding first rodless cylinder 4 is activated to bring the flared copper head 6 back to its original position. Then, the servo motor is started in the forward direction. Through the meshing of two gears, the steering shaft 2 rotates, which in turn rotates the connecting strip 3. After the connecting strip 3 rotates 180°, the servo motor is turned off. At this point, the flared copper head 6 and the anti-shrinkage clamp 8 have exchanged positions. Then, both first rodless cylinders 4 are activated simultaneously. The sliders on both first rodless cylinders 4 move horizontally at the same time, causing the flared copper head 6 to move towards another sleeve that has not yet been flared, while the anti-shrinkage clamp 8 moves towards the sleeve that has already been flared. Finally, the flared copper head 6 continues to perform the next expansion operation. At the same time, the anti-shrinkage clamp 8 is inserted into the flared sleeve, supporting the flared portion. Open the corresponding air valve and start the fan 18. The fan 18 pours the cooling airflow into the corresponding air guide pipe 20, then into the corresponding connecting ring pipe 21, and finally sprays it out through the corresponding jet nozzle 17, thereby cooling and shaping the end of the sleeve that has just been flared. After cooling and shaping, first start the corresponding first rodless cylinder 4 to bring the anti-shrink clamp 8 back to its original position, then start the output shaft of the corresponding single-axis cylinder 11 to retract, and then pull out the flared and cooled insulating sleeve. Immediately afterward, start the output shaft of the corresponding double-axis cylinder 14 to extend, and the end clamp 15 will move accordingly. Then take out another insulating sleeve to be flared and insert it into the corresponding connecting sleeve 10 so that its end contacts the end clamp 15.

[0033] Meanwhile, the hot flaring process on the other side is also completed. Then, the corresponding first rodless cylinder 4 is activated to bring the flaring copper head 6 back to its original position. Then, the servo motor is activated in reverse to make the connecting bar 3 rotate 180° with the flaring copper head 6 and the anti-shrink clamp 8. At this time, the two first rodless cylinders 4 are activated again to move the flaring copper head 6 toward the next sleeve to be flared, while the anti-shrink clamp 8 is inserted back into the flared sleeve. Then, the corresponding air valve is opened, and the cooling and shaping process can be carried out in the same way as above. After cooling is completed, the sleeve is taken out and replaced with the next sleeve to be flared. After the flaring copper head 6 has finished flaring the previous sleeve, the same operation can be carried out in the same way as above. Then, this process is repeated so that the flaring copper head 6 and the anti-shrink clamp 8 work alternately.

[0034] Compared with related technologies, the insulating sleeve diameter expansion and shaping cooling device provided by this utility model has the following beneficial effects:

[0035] This utility model provides an insulating sleeve diameter expansion and shaping cooling device. By setting a flaring copper head 6 and an anti-shrinkage clamp 8 on the connecting strip 3, the insulating sleeve that has been expanded can be cooled and shaped by blowing air at the same time while the hot flaring process is being carried out on one side. The two can be carried out simultaneously without waiting for the cooling and shaping to be completed before the next flaring process can be carried out. This makes full use of the waiting time for cooling and shaping, and greatly improves the working efficiency of flaring and shaping cooling of insulating sleeves. In addition, the anti-shrinkage clamp 8 set during shaping can prevent the sleeve from shrinking due to cold shrinkage, thereby improving the expansion qualification rate.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cooling device for expanding and shaping an insulating sleeve, comprising a bending frame, characterized in that, A rectangular frame is provided above the folding frame. A steering shaft is rotatably mounted on one side of the folding frame. A connecting strip is fixedly mounted on the end of the steering shaft near the rectangular frame. A first rodless cylinder and a second rodless cylinder are fixedly mounted on the side of the connecting strip away from the rectangular frame. A heat-conducting rod is fixedly mounted on the slider of the first rodless cylinder. A flared copper head is fixedly mounted on the side of the heat-conducting rod near the connecting strip. An anti-shrinkage clamp is fixedly mounted on the slider of the second rodless cylinder. Both the flared copper head and the anti-shrinkage clamp pass through the connecting strip and do not contact the connecting strip. The rectangular frame is equipped with two clamping mechanisms to clamp and fix the two insulating sleeves simultaneously. Two connecting ring pipes are provided between the connecting strip and the rectangular frame. Multiple air distribution pipes arranged in a ring array are fixedly installed in each of the two connecting ring pipes. Multiple air nozzles are fixedly installed on each of the multiple air distribution pipes. The two connecting ring pipes are respectively adapted to the two clamping mechanisms. The folding frame is provided with an air supply system that can introduce cooling airflow into the two connecting ring pipes.

2. The insulating sleeve diameter expansion and shaping cooling device according to claim 1, characterized in that, Each of the clamping mechanisms includes a connecting sleeve, which is fixedly installed in the rectangular frame. A single-axis cylinder is fixedly installed at the top and bottom of the connecting sleeve. The output shafts of the two single-axis cylinders are movably connected to the top and bottom of the connecting sleeve, respectively. Two clamping plates are provided inside the connecting sleeve, and the output shafts of the two single-axis cylinders are fixedly connected to the two clamping plates, respectively.

3. The insulating sleeve diameter expansion and shaping cooling device according to claim 1, characterized in that, Two protruding plates are fixedly installed on the side of the rectangular frame near the connecting strip. A dual-axis cylinder is fixedly installed on the side of the two protruding plates that are far apart from each other. The output shafts of the two dual-axis cylinders pass through the two protruding plates respectively and are connected to the corresponding sliding rods of the protruding plates. An end plate is fixedly installed on the output shaft of the two dual-axis cylinders.

4. The insulating sleeve diameter expansion and shaping cooling device according to claim 1, characterized in that, The air supply system includes a fan, which is fixedly installed on the folding frame. A main air guide pipe is fixedly installed on the air outlet of the fan. Two secondary air guide pipes are fixedly installed on one end of the main air guide pipe. The other ends of the two secondary air guide pipes pass through the rectangular frame and are fixedly connected to the corresponding connecting ring pipe. Each of the two secondary air guide pipes is equipped with an air valve.

5. The insulating sleeve diameter expansion and shaping cooling device according to claim 1, characterized in that, The connecting strip has two movable holes. The flared copper head and the anti-shrink clip are respectively inserted into the two movable holes without contacting the inner wall of the movable holes. The diameter of the movable hole corresponding to the flared copper head is larger than the outer diameter of the heat-conducting rod.

6. The insulating sleeve diameter expansion and shaping cooling device according to claim 1, characterized in that, A servo motor is fixedly installed on the side of the folding frame away from the rectangular frame. Gears are fixedly sleeved on both the output shaft and the steering shaft of the servo motor, and the two gears mesh with each other.

7. The insulating sleeve diameter expansion and shaping cooling device according to claim 2, characterized in that, A guide ring is fixedly installed on the side of the connecting sleeve away from the connecting strip, and the guide ring and the connecting ring tube are on the same horizontal axis.