A cold shrink cable accessory, a pre-expanding apparatus thereof and a method of manufacture

Abstract

The application relates to the technical field of cable accessory processing, and discloses a cold-shrink cable accessory, a pre-expanding device thereof and a preparation method, which comprise a cold-shrink pipe body, a cable body is penetrated into the cold-shrink pipe body, and a group of cleaning assemblies are arranged on the inner wall of the cold-shrink pipe body; the cleaning assemblies are used for cleaning the surface of the cable body in the cold-shrink pipe body; the pre-expanding device comprises a mounting bottom plate, a first fixing frame is arranged on the top of the mounting bottom plate, a driving cylinder is arranged in the first fixing frame, one end of the driving cylinder is provided with a driving shaft, one end of the driving shaft is provided with a synchronous plate, a group of guide rods are symmetrically arranged on one side of the synchronous plate, a second fixing frame is further arranged on the top of the mounting bottom plate, one end of the guide rods penetrates through the first fixing frame and the second fixing frame at the same time, and a fixing assembly is arranged on one side of the synchronous plate; the fixing assembly is used for fixing the position of the cable body during expansion. Compared with the prior art, the application ensures that the cable body can be stably and accurately pre-expanded during expansion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable accessory processing, in particular to a cold shrink cable accessory, a pre-expanding device thereof and a preparation method. BACKGROUND

[0002] The cold shrink cable accessory is formed by injecting and vulcanizing an elastic silicone rubber or ethylene-propylene rubber material in a factory, and then expanding and lining with a plastic spiral support to form various cable accessory components. During on-site installation, the pre-expanded components are sleeved on the treated cable end or joint, the plastic spiral strip inside the support is extracted, and is pressed tightly on the cable insulation. Because the contraction is performed at room temperature by relying on the elastic retraction force, rather than being heated to shrink like a heat shrinkable cable accessory, it is commonly known as a cold shrink cable accessory.

[0003] In the prior art, a cold shrink cable accessory expanding machine is disclosed in Chinese patent document CN218256751U, which comprises a base and a power device. The power device is internally connected with an output shaft through transmission. The output shaft is screw-mounted with an expanding die. The sidewall of the top of the base is installed with a limiting mechanism. The cold shrink cable accessory expanding machine can quickly center the cold shrink cable accessory and limit and fix cold shrink cable accessories of various diameter specifications, effectively improving the processing efficiency of the device. However, there are still some problems in actual use, such as insufficient cleanliness of the cable surface, pollutants affecting the cold shrink effect, and difficulty in ensuring that the cable can uniformly and tightly shrink, which directly affects the quality and performance of the cold shrink cable accessory. Therefore, the present application discloses a cold shrink cable accessory, a pre-expanding device thereof and a preparation method to avoid the influence of surface dirt or impurities on the quality of the cold shrink process and improve the stability and consistency of the cold shrink effect. SUMMARY

[0004] (I) Technical problems to be solved

[0005] In view of the deficiencies in the prior art, the present application provides a cold shrink cable accessory, a pre-expanding device thereof and a preparation method, which have the advantages of improving the uniformity and stability of the cold shrink effect and solving the problem of the influence of cable surface dirt or impurities on the quality of the cold shrink process.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cold shrink cable accessory, comprising a cold shrink pipe body, an electric cable body penetrating through the cold shrink pipe body, and a set of cleaning components provided on the inner wall of the cold shrink pipe body; the cleaning components are used to clean the surface of the electric cable body in the cold shrink pipe body.

[0007] Preferably, the cleaning assembly comprises a set of fixed seats arranged on the inner wall of the cold shrink tube body, a rotating rod is arranged on the fixed seat in a rotating manner, a return spring is arranged on the rotating rod, a cleaning plate is arranged on the rotating rod, the inner wall of the cleaning plate is provided with a sliding plate, a contact plate is further arranged on the rotating rod, and a plurality of limiting grooves are formed in the side surface of the contact plate.

[0008] Preferably, a protective tube is sleeved on the cold shrink tube body.

[0009] Preferably, the weight of the contact plate is greater than the weight of the cleaning plate, a plurality of contact plates are close to each other in a normal state, the cleaning plate is an arc-shaped structure bent to one side, one end of the cleaning plate is an arc-shaped structure, and the other end of the cleaning plate is in contact with the surface of the cable body.

[0010] A cold shrink cable accessory pre-expansion device applied to any one of the above cold shrink cable accessories, comprising a mounting bottom plate, a first fixing frame is arranged on the top of the mounting bottom plate, a drive cylinder is arranged in the first fixing frame, a drive shaft is arranged at one end of the drive cylinder, a synchronization plate is arranged at one end of the drive shaft, a plurality of guide rods are symmetrically arranged on one side of the synchronization plate, a second fixing frame is further arranged on the top of the mounting bottom plate, one end of the guide rod penetrates through the first fixing frame and the second fixing frame at the same time, and a fixing assembly is arranged on one side of the synchronization plate.

[0011] Preferably, the fixing assembly comprises a drive rod arranged on one side of the synchronization plate, a connecting sleeve is sleeved on the drive rod, a plurality of mounting plates are arranged on the connecting sleeve, a first synchronization arm is arranged on one side of the mounting plate in a rotating manner, a second synchronization arm is arranged on the other side of the mounting plate, a fixed circular plate is arranged at the top of the first synchronization arm and the second synchronization arm, and the fixed circular plate is in a circular arc structure.

[0012] Preferably, a first buffer plate is arranged at one end of the drive rod, a rectangular air slot is formed in the center of the first buffer plate, a second buffer plate is arranged in the rectangular air slot, a moving head is arranged at one end of the second buffer plate, the moving head is connected with the drive rod through the first buffer plate and the second buffer plate, a plurality of connecting seats are arranged on the moving head, the number of the connecting seats corresponds to the number of the mounting plates, a third synchronization arm is arranged on the connecting seat in a rotating manner, the third synchronization arm is rotatably connected with the second synchronization arm, a trigger plate is arranged at one end of the moving head, and the trigger plate is in contact with the top end of the cable body.

[0013] Preferably, a plurality of fixed circular plates can form a complete circle, a plurality of anti-skid grooves are formed in the inner wall of the fixed circular plate.

[0014] Preferably, a plurality of sets of anti-collision pads are arranged between the connecting sleeve and the moving head, and the anti-collision pads are sleeved between the first buffer plate and the second buffer plate.

[0015] A method for preparing a cold shrink cable accessory, applied to the pre-expansion device of any one of the above, comprising the following steps:

[0016] S1, preparing a suitable cable body, cleaning the outer skin of the cable body, removing dirt and impurities, ensuring the surface of the cable body to be smooth and undamaged, and ensuring the surface of the cable body to be clean;

[0017] S2, sleeving of the cold shrink tube body: sleeving the cold shrink tube body on the cable body, ensuring correct docking of the cold shrink tube body on the cable body, and preparing for the subsequent pre-expansion process;

[0018] S3, cleaning before cable expansion: starting the pre-expansion device, and cleaning the surface of the cable body by the cleaning plate arranged in the cleaning assembly; during the cleaning process, the cleaning plate moves along the surface of the cable body to remove dust, oil stains and other impurities on the surface;

[0019] S4, starting the expansion device; starting the driving cylinder in the pre-expansion device, driving the shaft to move the synchronization plate, and driving the guide rod to stably run between the first fixed frame and the second fixed frame, so that the cold shrink tube body can perfectly fit the cable body; during the expansion process, the trigger plate on the moving head of the fixing assembly is in contact with the top end of the cable body, ensuring the position of the cable body fixed, the fixed disc is firmly fixed on the cable body through a plurality of mounting plates, avoiding displacement of the cable body during the expansion process, and ensuring the position of the cable body stable during the expansion process;

[0020] S5, buffering process and collision avoidance; during the expansion process, the anti-collision pads between the first buffer plate and the second buffer plate effectively absorb the impact;

[0021] S6, cold shrink tube fastening; after the expansion is completed, the cold shrink tube body is tightly combined with the surface of the cable body, ensuring the tight fit of the cold shrink tube body and the cable body;

[0022] S7, product detection; quality detection is performed on the prepared cold shrink cable accessory, the expansion effect of the cold shrink tube body, the fixing condition of the cable body and the overall durability are checked, the safety and stability in subsequent use are ensured, the cold shrink cable accessory meeting the standards is packaged, and protection measures are taken.

[0023] Compared with the prior art, the present application provides a cold shrink cable accessory, a pre-expansion device and a preparation method thereof, which have the following beneficial effects:

[0024] 1. The cold shrink cable accessory, its pre-expansion device and preparation method, by penetrating the cable body through the cold shrink tube body, the pretreatment of the cable is realized, a set of cleaning components are arranged on the inner wall of the cold shrink tube body, the cleaning components automatically clean the surface of the cable body during the working process, remove the surface dirt and impurities, ensure the surface of the cable body clean and smooth, thereby improving the uniformity and stability of the cold shrink effect, the cleaning process can effectively clean the surface before the cable body and the cold shrink tube body contact, the cleaning components effectively clean the surface of the cable body, avoid the surface dirt or impurities affecting the quality of the cold shrink process, ensure the close combination of the cold shrink tube body and the cable body, improve the stability and consistency of the cold shrink effect, at the same time, the cleaning process is automatic, reduces the need for manual intervention, improves the production efficiency.

[0025] 2. The cold shrink cable accessory, its pre-expansion device and preparation method, when the cable body is inserted into the cold shrink tube body, first wipe one end of the cable body and insert it into the cold shrink tube body, at this time, one end of the cable body first contacts the limiting groove on one side of the contact plate, through the arrangement of the limiting groove, the cable body can be shaken during the process of inserting into the cold shrink tube body, thereby avoiding the problem of deviation during the process of inserting into the cold shrink tube body, the accuracy of the cable body when entering the cold shrink tube body can be judged by the vibration of the cable body, at the same time, the contact plate is driven to rotate around the axis of the rotating rod when the cable body continuously enters the cold shrink tube body, at the same time, the contact plate can ensure different deflection angles when the cable body of different sizes contacts the contact plate, at the same time, the rotating rod can be driven to rotate on the fixed seat, thereby the return spring is compressed, during the rotation of the fixed seat, the cleaning plate can be deflected at the same time, thereby the cleaning plate can adjust the distance between the cleaning plates according to the deflection angle of the contact plate, that is, the size of the cable body, thereby suitable for cable bodies of different sizes, during this process, one end of the cleaning plate can clean the surface of the cable body, avoid the surface dirt or impurities affecting the quality of the cold shrink process, through the elastic force of the return spring arranged on the fixed seat, it is ensured that the cleaning plate will not cause large extrusion strength to the surface of the cable body due to friction, ensure the stability and reliability of the cleaning effect, also can reduce the problem of not tight attachment of the cold shrink tube caused by improper cleaning, thereby improve the overall performance of the cold shrink cable accessory.

[0026] 3、The cold shrink cable accessory, its pre-expansion equipment and preparation method, the protective tube is sleeved outside the cold shrink tube body, the protective tube is used for protecting the cold shrink tube body from physical damage in the process of transportation, storage and installation, a certain gap is formed between the protective tube and the cold shrink tube body, which can effectively prevent external force from pressing or extruding the cold shrink tube body, while maintaining the stability of the cold shrink tube, the protective tube can also prevent environmental pollutants from directly contacting the surface of the cold shrink tube body to a certain extent, and ensure that the cold shrink effect is not disturbed; the external protection of the protective tube improves the compression resistance and friction resistance of the cold shrink tube body, ensuring that the cold shrink tube can always maintain the best performance and effect during the whole use process.

[0027] 4、The cold shrink cable accessory, its pre-expansion equipment and preparation method, the driving cylinder drives the driving shaft to move, thereby driving the synchronous plate to move, a group of guide rods are arranged on one side of the synchronous plate, the other end of the guide rod penetrates the first fixed frame and the second fixed frame, ensuring that the synchronous plate can move stably between the two, avoiding the position deviation of the cable body caused by unstable movement of the synchronous plate, thereby ensuring the accuracy and consistency of the cable expansion process, the fixed assembly arranged on one side of the synchronous plate is used to fix the expansion position of the cable body, preventing unnecessary displacement or loosening during the expansion process, further improving the expansion precision and stability, ensuring that the cable body can be stably and accurately pre-expanded during the expansion process; also effectively reduces the manual intervention, improves the production efficiency and operation safety.

[0028] 5、The cold shrink cable accessory, its pre-expansion equipment and preparation method, when the synchronous plate drives the driving rod to move synchronously, the driving rod can drive the moving head to move, at this time, the third synchronous arm on the connecting seat can be deflected, thereby driving the first synchronous arm and the second synchronous arm to deflect synchronously on the mounting plate, thereby causing multiple fixed circular plates to approach each other, by using the circular arc structure of the fixed circular plate and the anti-skid groove, the cable body can be uniformly and firmly fixed during the expansion process, the anti-skid groove effectively increases the friction between the fixed circular plate and the surface of the cable body, preventing the cable body from being unstable or unevenly expanded due to sliding during the expansion process, in addition, the circular structure of the fixed circular plate ensures uniform distribution of the fixing force, avoiding local pressure concentration and reducing damage to the cable body, not only improving the accuracy and stability of the cable body during the expansion process, but also greatly improving the safety and reliability of the operation, while reducing the dependence on manual operation, optimizing the automation production efficiency.

[0029] 6、The cold shrink cable accessory, its pre-expansion equipment and preparation method, by pre-expanding, the one end of the cable body is in contact with the trigger plate, in this process, the moving head can be first pushed to move, and the second buffer plate can be moved relative to the first buffer plate, through the rectangular slot opened on the first buffer plate and the second buffer plate, a certain buffer space can be ensured, which not only helps to smoothly adjust the impact force generated in the driving process, reduces the load and wear of the mechanical system, but also ensures that the fixed circular plate can accurately contact the top end of the cable body and trigger the expansion operation in time, ensures the synchronicity and stability of the expansion process, prolongs the service life of the equipment and improves the accuracy and safety of the cable expansion.

[0030] 7、The cold shrink cable accessory, its pre-expansion equipment and preparation method, through the automatic cleaning, expansion and fixing process, the production efficiency and product quality are significantly improved, the cleaning assembly ensures the surface of the cable body clean, avoids the interference of pollutants to the cold shrink effect, ensures the close combination of the cold shrink pipe body and the cable body; The accurate expansion process ensures the uniform expansion of the cold shrink pipe, improves the consistency of the cold shrink effect; The setting of the buffer structure effectively reduces the collision and friction, prolongs the service life of the equipment and protects the cable body; Automatic control reduces manual intervention, reduces the operation risk, improves the consistency and stability of production, has the advantages of high efficiency, reliability and accuracy, and can meet the demand of mass production and high precision production. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the three-dimensional cold shrink cable accessory of the application;

[0032] Figure 2 It is a schematic diagram of the local cut structure of the three-dimensional cold shrink pipe body of the application;

[0033] Figure 3 It is a schematic diagram of the cleaning assembly movement of the application;

[0034] Figure 4 It is a schematic diagram of the first perspective three-dimensional structure of the pre-expansion equipment of the application;

[0035] Figure 5 It is a schematic diagram of the second perspective three-dimensional structure of the pre-expansion equipment of the application;

[0036] Figure 6 It is a schematic diagram of the open three-dimensional structure of the fixed assembly of the application;

[0037] Figure 7 It is a schematic diagram of the closed three-dimensional structure of the fixed assembly of the application;

[0038] Figure 8 It is a schematic diagram of the local cut three-dimensional structure of the fixed circular plate of the application;

[0039] Figure 9 Figure 1 is a schematic view of the first buffer plate and the second buffer plate cooperating in a three-dimensional structure according to the present application.

[0040] In the figure: 1, cold shrink tube body; 2, cable body; 3, protective tube; 4, fixing seat; 5, rotating rod; 6, cleaning plate; 7, sliding plate; 8, contact plate; 9, limiting groove; 10, mounting bottom plate; 11, first fixing frame; 12, driving cylinder; 13, driving shaft; 14, synchronization plate; 15, guide rod; 16, second fixing frame; 17, driving rod; 18, connecting sleeve; 19, mounting plate; 20, first synchronization arm; 21, second synchronization arm; 22, fixed circular plate; 23, anti-skid groove; 24, first buffer plate; 25, second buffer plate; 26, moving head; 27, connecting seat; 28, third synchronization arm; 29, trigger plate; 30, anti-collision pad. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] As introduced in the background, there are deficiencies in the prior art. In order to solve the above technical problems, the present application provides a cold shrink cable accessory, its pre-expanding device and preparation method.

[0043] In a typical embodiment of the present application, as shown in Figures 1-3 A cold shrink cable accessory, comprising a cold shrink tube body 1, a cable body 2 is penetrated through the cold shrink tube body 1, and a set of cleaning assemblies are arranged on the inner wall of the cold shrink tube body 1; the cleaning assemblies are used for cleaning the surface of the cable body 2 in the cold shrink tube body 1.

[0044] By penetrating the cable body 2 through the cold shrink tube body 1, the pretreatment of the cable is realized. A set of cleaning assemblies are arranged on the inner wall of the cold shrink tube body 1. The cleaning assemblies automatically clean the surface of the cable body 2 during the working process, remove the dirt and impurities on the surface, and ensure the surface of the cable body 2 to be clean and smooth, thereby improving the uniformity and stability of the cold shrink effect. The cleaning process can effectively clean the surface before the cable body 2 and the cold shrink tube body 1 are contacted. The surface dirt or impurities are effectively cleaned by the cleaning assemblies, which avoids affecting the quality of the cold shrink process, ensures the close combination of the cold shrink tube body 1 and the cable body 2, and improves the stability and consistency of the cold shrink effect. Meanwhile, the cleaning process is automatically performed, which reduces the need for manual intervention and improves the production efficiency.

[0045] As a preferred embodiment in the present embodiment, refer to the attached Figure 2 and Figure 3 , the cleaning assembly comprises a set of fixed seats 4 arranged on the inner wall of the cold shrink tube body 1, a rotating rod 5 is arranged on the fixed seat 4 in a rotating manner, a reset spring is arranged on the rotating rod 5, a cleaning plate 6 is arranged on the rotating rod 5, the inner wall of the cleaning plate 6 is provided with a sliding plate 7, the rotating rod 5 is further provided with a contact plate 8, and a plurality of limiting grooves 9 are arranged on one side surface of the contact plate 8; the weight of the contact plate 8 is greater than the weight of the cleaning plate 6, a group of contact plates 8 are close to each other in a normal state, the cleaning plate 6 is an arc-shaped structure bent to one side, one end of the cleaning plate 6 is an arc-shaped structure, and the one end of the cleaning plate 6 is in contact with the surface of the cable body 2;

[0046] When the cable body 2 is inserted into the cold shrink tube body 1, first wipe one end of the cable body 2 and then insert it into the cold shrink tube body 1, at this time, the one end of the cable body 2 first contacts the limiting groove 9 on one side of the contact plate 8, through the arrangement of the limiting groove 9, the cable body 2 can be shaken during the process of being inserted into the cold shrink tube body 1, thereby avoiding the problem that the cable body 2 deviates during the process of being inserted into the cold shrink tube body 1, the accuracy of the cable body 2 when entering the cold shrink tube body 1 can be judged by the vibration of the cable body 2, and at the same time, when the cable body 2 continuously enters the cold shrink tube body 1, the contact plate 8 is driven to rotate around the axis of the rotating rod 5, the contact plate 8 can be deflected at different angles when the cable body 2 with different sizes contacts the contact plate 8, and the rotating rod 5 can be driven to rotate on the fixed seat 4, so that the reset spring is compressed, and the cleaning plate 6 can be deflected at the same time during the rotation of the fixed seat 4, so that the cleaning plate 6 can adjust the distance between the cleaning plates 6 according to the deflection angle of the contact plate 8, that is, the size of the cable body 2, as shown by the arrow direction in the attached Figure 3 , so as to be suitable for cable bodies 2 with different sizes, and in this process, one end of the cleaning plate 6 can clean the surface of the cable body 2, avoiding that surface dirt or impurities affect the quality of the cold shrink process, the elastic force of the reset spring arranged on the fixed seat 4 ensures that the cleaning plate 6 will not cause a large extrusion strength to the surface of the cable body 2 due to friction, ensuring the stability and reliability of the cleaning effect, and also reducing the problem of poor adhesion of the cold shrink tube caused by improper cleaning, thereby improving the overall performance of the cold shrink cable accessory.

[0047] As a preferred embodiment in the present embodiment, refer to the attached Figure 1 , the cold shrink tube body 1 is sleeved with a protective tube 3;

[0048] The cold shrink tube body 1 is externally sleeved with a protective tube 3, the protective tube 3 is used for protecting the cold shrink tube body 1 from physical damage in the process of transportation, storage and installation, a certain gap is formed between the protective tube 3 and the cold shrink tube body 1, which can effectively prevent external force from pressing or extruding the cold shrink tube body 1, while maintaining the stability of the cold shrink tube, the protective tube 3 can also prevent environmental pollutants from directly contacting the surface of the cold shrink tube body 1 to a certain extent, ensuring that the cold shrink effect is not disturbed; the external protection of the protective tube 3 improves the compression resistance and friction resistance of the cold shrink tube body, ensuring that the cold shrink tube can always maintain the best performance and effect during the entire use process.

[0049] As a preferred embodiment in the present embodiment, reference is made to the accompanying drawings Figures 4-9 A cold shrink cable accessory pre-expansion device, comprising a mounting base plate 10, a first fixing frame 11 is arranged on the top of the mounting base plate 10, a drive cylinder 12 is arranged in the first fixing frame 11, one end of the drive cylinder 12 is provided with a drive shaft 13, one end of the drive shaft 13 is provided with a synchronization plate 14, a group of guide rods 15 are symmetrically arranged on one side of the synchronization plate 14, a second fixing frame 16 is arranged on the top of the mounting base plate 10, one end of the guide rod 15 penetrates the first fixing frame 11 and the second fixing frame 16 at the same time, and a fixing assembly is arranged on one side of the synchronization plate 14; the fixing assembly is used for fixing the position of the cable body 2 during expansion;

[0050] The drive cylinder 12 drives the drive shaft 13 to move, thereby driving the synchronization plate 14 to move, a group of guide rods 15 are arranged on one side of the synchronization plate 14, the other end of the guide rod 15 penetrates the first fixing frame 11 and the second fixing frame 16, ensuring that the synchronization plate 14 can move stably between the two, avoiding the position deviation of the cable body 2 caused by unstable movement of the synchronization plate 14, thereby ensuring the accuracy and consistency of the cable expansion process, the fixing assembly arranged on one side of the synchronization plate 14 is used for fixing the expansion position of the cable body 2, preventing unnecessary displacement or loosening during the expansion process, further improving the expansion precision and stability, and ensuring that the cable body 2 can stably and accurately perform the pre-expansion operation during the expansion process; also effectively reducing manual intervention, improving production efficiency and operation safety.

[0051] As a preferred embodiment in the present embodiment, reference is made to the accompanying drawings Figures 4-8The fixed assembly comprises a driving rod 17 arranged on one side of the synchronization plate 14, a connecting sleeve 18 sleeved on the driving rod 17, a plurality of mounting plates 19 arranged on the connecting sleeve 18, a first synchronization arm 20 rotatably arranged on one side of the mounting plate 19, a second synchronization arm 21 arranged on the other side of the mounting plate 19, a fixed circular plate 22 arranged at the top of the first synchronization arm 20 and the second synchronization arm 21, and a plurality of anti-skid grooves 23 arranged on the inner wall of the fixed circular plate 22.

[0052] When the driving rod 17 is synchronously moved by the synchronization plate 14, the driving rod 17 can drive the moving head 26 to move, so that the third synchronization arm 28 on the connecting seat 27 is deflected, and the first synchronization arm 20 and the second synchronization arm 21 are synchronously deflected on the mounting plate 19, so that the plurality of fixed circular plates 22 are close to each other. The circular arc structure of the fixed circular plate 22 and the anti-skid groove 23 can uniformly and firmly fix the cable body 2 during the expansion process. The anti-skid groove 23 effectively increases the friction between the fixed circular plate 22 and the surface of the cable body 2, prevents the cable body 2 from being unstable or unevenly expanded due to sliding during the expansion process, and ensures the uniform distribution of the fixing force. The circular structure of the fixed circular plate 22 avoids local pressure concentration, reduces damage to the cable body 2, improves the accuracy and stability of the cable body 2 during the expansion process, greatly improves the safety and reliability of the operation, reduces the dependence on manual operation, and optimizes the automatic production efficiency.

[0053] As a preferred embodiment in the present embodiment, reference is made to the accompanying drawings Figure 1 One end of the driving rod 17 is provided with a first buffer plate 24, a rectangular air slot is arranged at the center of the first buffer plate 24, a second buffer plate 25 is arranged in the rectangular air slot, one end of the second buffer plate 25 is provided with a moving head 26, the moving head 26 is connected with the driving rod 17 through the first buffer plate 24 and the second buffer plate 25, a plurality of connecting seats 27 are arranged on the moving head 26, the number of the connecting seats 27 corresponds to the number of the mounting plates 19, a third synchronization arm 28 is rotatably arranged on the connecting seat 27, the third synchronization arm 28 is rotatably connected with the second synchronization arm 21, one end of the moving head 26 is provided with a trigger plate 29, the trigger plate 29 is in contact with the top end of the cable body 2; a plurality of anti-collision pads 30 are arranged between the connecting sleeve 18 and the moving head 26, the anti-collision pads 30 are sleeved between the first buffer plate 24 and the second buffer plate 25.

[0054] By pre-expanding the cold shrink tube body 1, one end of the cable body 2 is in contact with the trigger plate 29, in this process, the moving head 26 can be pushed to move first, and the second buffer plate 25 can be moved relative to the first buffer plate 24, through the rectangular grooves opened on the first buffer plate 24 and the second buffer plate 25, a certain buffer space can be ensured, which not only helps to smoothly adjust the impact force generated during driving, reduces the load and wear of the mechanical system, but also ensures that the fixed circular plate 22 can accurately contact the top end of the cable body 2 and trigger the expansion operation in time, ensuring the synchronicity and stability of the expansion process, prolonging the service life of the equipment and improving the accuracy and safety of the cable expansion.

[0055] A cold shrink cable accessory preparation method applied to any one of the above cold shrink cable accessory pre-expansion devices, comprising the following steps:

[0056] S1, cable preparation: prepare a suitable cable body 2, clean the outer skin of the cable body 2, remove dirt and impurities, ensure that the surface of the cable body 2 is smooth and undamaged, and ensure that the surface of the cable body 2 is clean to ensure that the cold shrink tube body 1 can be tightly combined with the cable surface;

[0057] S2, sleeving of the cold shrink tube body: sleeving the cold shrink tube body 1 on the cable body 2, ensuring that the cold shrink tube body 1 correctly docks with the cable body 2 and that there is no gap between them, preparing for the subsequent pre-expansion process and ensuring the fit between the cold shrink tube body 1 and the cable body 2;

[0058] S3, cleaning before cable expansion: start the pre-expansion device, and the cleaning assembly automatically cleans the surface of the cable body 2 through the cleaning plate 6 provided therein. During the cleaning process, the cleaning plate 6 moves along the surface of the cable body 2 to remove dust, oil stains and other impurities on the surface, ensuring that the cable surface is clean and avoiding contamination affecting the cold shrink effect, and ensuring that the cable body 2 can be uniformly and tightly contracted;

[0059] S4, start the expansion device; start the drive cylinder 12 in the pre-expansion device, the drive shaft 13 drives the synchronization plate 14 to move, the synchronization plate 14 drives the guide rod 15 to move smoothly between the first fixed frame 11 and the second fixed frame 16, ensuring that the cable body 2 does not deviate during the expansion process; realizing uniform expansion of the cold shrink tube body 1, so that the cold shrink tube body 1 can perfectly fit the cable body 2. During the expansion process, the trigger plate 29 on the moving head 26 of the fixed assembly is in contact with the top end of the cable body 2, ensuring the position of the cable body 2, the fixed circular plate 22 is firmly fixed to the cable body 2 through multiple groups of mounting plates 19, avoiding displacement of the cable body 2 during the expansion process, ensuring the position stability of the cable body 2 during the expansion process, and avoiding position deviation affecting the precision of the cold shrink tube installation;

[0060] S5, buffering process and avoiding collision; during the expansion process, the anti-collision pad 30 between the first buffer plate 24 and the second buffer plate 25 effectively absorbs the impact, buffers the friction and collision force between the components, and ensures the smooth operation of the equipment; avoid damage to the equipment or the cable body 2 due to collision, improve the reliability of the production equipment and the stability of the cable body 2;

[0061] S6, cold shrink tube fastening; after the expansion is completed, the cold shrink tube body 1 is tightly combined with the surface of the cable body 2, ensuring the uniformity and stability of the cold shrink effect, and through appropriate post-processing steps (such as heating or cooling), the cold shrink tube body 1 is completely fixed on the surface of the cable body 2, ensuring the tight fit of the cold shrink tube and the cable, preventing loosening or loose phenomenon caused by temperature change or external force;

[0062] S7, finished product detection; quality detection is performed on the prepared cold shrink cable accessory, the expansion effect of the cold shrink tube, the fixing condition of the cable body 2 and the overall durability are checked to ensure that it meets the product quality standard, ensures that each batch of produced cold shrink cable accessories meets the standard, ensures the safety and stability in subsequent use, and the cold shrink cable accessories that meet the standard are packaged, protective measures are taken to prevent damage during transportation and storage, and the packaged products can be shipped.

[0063] Through the automatic cleaning, expansion and fixing process, the production efficiency and product quality are significantly improved, the cleaning assembly ensures the cleanliness of the surface of the cable body 2, avoids the interference of pollutants with the cold shrink effect, and ensures the tight combination of the cold shrink tube body 1 and the cable body 2; the accurate expansion process ensures the uniform expansion of the cold shrink tube, improves the consistency of the cold shrink effect; the setting of the buffer structure effectively reduces the collision and friction, prolongs the service life of the equipment and protects the cable body 2; automatic control reduces manual intervention, reduces the operation risk, improves the consistency and stability of production, and has the advantages of high efficiency, reliability and accuracy, which can meet the demand of mass production and high precision production.

[0064] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cold shrink cable accessory characterised in that: The utility model relates to a cable cleaning device, including cold shrink tube body (1), the cable body (2) is through in the cold shrink tube body (1), a group of cleaning components are arranged on the inner wall of cold shrink tube body (1), The cleaning component is used for cleaning the surface of the cable body (2) in the cold shrink tube body (1), and the cleaning component includes a group of fixing bases (4) arranged on the inner wall of the cold shrink tube body (1), a rotating rod (5) is rotatably arranged on the fixing base (4), a return spring is arranged on the rotating rod (5), a cleaning plate (6) is arranged on the rotating rod (5), the inner wall of the cleaning plate (6) is provided with a sliding plate (7), a contact plate (8) is further arranged on the rotating rod (5), a plurality of limiting grooves (9) are formed in the side surface of the contact plate (8), the weight of the contact plate (8) is greater than the weight of the cleaning plate (6), a group of the contact plate (8) is close to each other in normal state, the cleaning plate (6) is the arc structure that bends to one side, one end of the cleaning plate (6) is the arc structure, and the one end of the cleaning plate (6) is in contact with the surface of the cable body (2).

2. A cold shrink cable accessory according to claim 1, characterised in that: The protective tube (3) is sleeved on the cold shrink tube body (1).

3. A cold shrink cable accessory pre-expansion device for use with a cold shrink cable accessory as claimed in any one of claims 1 to 2, characterised in that: The utility model relates to a cable cleaning device, including installation bottom plate (10), the top of installation bottom plate (10) is provided with first fixed frame (11), the drive cylinder (12) is arranged in first fixed frame (11), one end of drive cylinder (12) is provided with drive shaft (13), one end of drive shaft (13) is provided with synchronous plate (14), a group of guide rods (15) are symmetrically arranged on one side of synchronous plate (14), the top of installation bottom plate (10) is further provided with second fixed frame (16), one end of guide rod (15) penetrates first fixed frame (11) and second fixed frame (16) simultaneously, and one side of synchronous plate (14) is provided with fixed component, The fixed component is used for fixing the position of the cable body (2) when expanding.

4. A cold shrink cable accessory pre-expander apparatus according to claim 3, wherein: The fixed component includes the drive rod (17) arranged on the other side of the synchronous plate (14), the connecting sleeve (18) is sleeved on the drive rod (17), a plurality of mounting plates (19) are arranged on the connecting sleeve (18), the first synchronous arm (20) is rotatably arranged on one side of the mounting plate (19), the second synchronous arm (21) is arranged on the other side of the mounting plate (19), the fixed circular plate (22) is arranged on the top of the first synchronous arm (20) and the second synchronous arm (21), and the fixed circular plate (22) is in arc structure.

5. A cold shrink cable accessory pre-expansion device according to claim 4, characterised in that: One end of the driving rod (17) is provided with a first buffer plate (24), a rectangular slot is formed in the center of the first buffer plate (24), a second buffer plate (25) is arranged in the rectangular slot, one end of the second buffer plate (25) is provided with a moving head (26), the moving head (26) is connected with the driving rod (17) through the first buffer plate (24) and the second buffer plate (25), a plurality of connecting seats (27) are arranged on the moving head (26), the number of the connecting seats (27) corresponds to the number of the mounting plates (19), a third synchronous arm (28) is rotatably arranged on the connecting seat (27), the third synchronous arm (28) is rotatably connected with the second synchronous arm (21), one end of the moving head (26) is provided with a trigger plate (29), the trigger plate (29) is in contact with the top end of the cable body (2).

6. A cold shrink cable accessory pre-expansion device according to claim 5, wherein: A plurality of groups of the fixed circular plates (22) can form a complete circle, a plurality of anti-skid grooves (23) are formed in the inner wall of the fixed circular plate (22).

7. A cold shrink cable accessory pre-expansion device according to claim 6, wherein: A plurality of groups of anti-collision pads (30) are arranged between the connecting sleeve (18) and the moving head (26), the anti-collision pads (30) are sleeved between the first buffer plate (24) and the second buffer plate (25).

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