Processing equipment for cable accessory production and preparation method of cable accessory

Abstract

The invention discloses processing equipment for cable accessory production and a preparation method of a cable accessory, a cable core is preset in a mold cavity, an annular gap for filling and coating molding of a sizing material is formed between the outer wall of the cable core and the inner wall of the mold cavity, and the annular gap forms a molding cavity of the cable accessory. A mold opening and closing driving mechanism and a set of independent ejecting and taking mechanism are arranged on the rack; the mold opening and closing driving mechanism is configured to drive the movable mold and drive the upper mold connected through the second rapid butt joint device to move together, and the ejection and part taking mechanism is configured to directly act on a cable core through the first rapid butt joint device and take out the whole cable core coated with the cable accessory from the lower mold. According to the invention, the cable core is pre-arranged in the die cavity as the insert, and the rubber material is directly vulcanized and formed in the annular gap, so that the problems of air gap and loose fitting caused by manual assembly in the traditional two-step method are thoroughly eliminated, and the hidden dangers of partial discharge and insulation breakdown caused by interface defects are fundamentally eliminated.

Description

Technical Field

[0001] This invention particularly relates to a processing equipment for producing cable accessories and a method for preparing cable accessories. Background Technology

[0002] In the field of cable accessory manufacturing, traditional production processes suffer from a fundamental technical bottleneck. For a long time, the industry has generally adopted a two-step manufacturing approach: first, a pure rubber or plastic cable accessory body is separately vulcanized using a mold; then, at the construction site or assembly workshop, operators painstakingly force the cable core (conductor) into the pre-made accessory body. This process has the following drawbacks: 1. Due to the unavoidable fit tolerance between the inner diameter of the cable accessory and the outer diameter of the cable core, a perfect fit between the two is difficult to achieve. This leads to the easy formation of tiny air gaps or interface gaps inside the product. Under the influence of a strong electric field, these air gaps will experience partial discharge, which will gradually erode the insulation material over a long period of time, eventually leading to insulation breakdown of the accessory. This is a long-standing pain point for the reliability of the entire power system.

[0003] 2. Elastomer materials (such as silicone rubber) have a high coefficient of friction, making it extremely difficult to manually insert rigid wire cores into their inner holes. This can easily scratch or tear the inner insulation layer of accessories, or cause irreversible stress concentration inside, resulting in hidden damage and making it difficult to improve the product yield. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a processing equipment for the production of cable accessories and a method for preparing cable accessories.

[0005] A processing equipment for producing cable accessories includes a frame on which a fixed mold and a movable mold are mounted. Glue injection channels are formed on both side walls of the fixed mold and the movable mold. A mold for molding the cable accessory is disposed between the fixed mold and the movable mold. The mold includes an upper mold and a lower mold, which together form a mold cavity. A cable core is pre-placed within the mold cavity. An annular gap is formed between the outer wall of the cable core and the inner wall of the mold cavity for filling and encapsulating with glue. This annular gap constitutes the molding cavity for the cable accessory. The frame is equipped with a mold opening and closing drive mechanism and an independent ejection and removal mechanism. The mold opening and closing drive mechanism is connected to the moving mold, and the upper mold is detachably connected to the moving mold via a second quick docking device. The mold opening and closing drive mechanism is configured to drive the moving mold and move the upper mold connected via the second quick docking device together, thereby achieving mold closing and separation with the fixed mold and the moving mold. The end of the ejection and extraction mechanism is provided with a first quick docking device for gripping or clamping the cable core after mold opening. The ejection and extraction mechanism is configured to act directly on the cable core via the first quick docking device to extract and remove the entire cable core, which has been covered with cable accessories, from the lower mold.

[0006] Preferably, a sealing needle valve is movably inserted into the glue injection channel; the sealing needle valve has two working positions: Injection station: The sealing needle valve exits from the injection channel, and the external injection equipment injects adhesive into the annular gap through the injection channel; Sealing station: After the glue injection is completed, the sealing needle valve is inserted into the glue injection channel and forms a seal.

[0007] Preferably, the second quick docking device includes a first drive cylinder mounted on the moving mold and a second drive cylinder mounted on the fixed mold. The piston rod of the first drive cylinder moves vertically and has a locking head at its end. The piston rod of the second drive cylinder moves horizontally and has a clamping and limiting member connected to its end. When the mold is closed, the first drive cylinder drives the locking head to move downward, and then the second drive cylinder drives the clamping and limiting member to move laterally, so that the clamping and limiting member directly engages with and locks the locking head, thereby achieving the fastening of the fixed mold by locking the locking head onto the clamping and limiting member.

[0008] Preferably, the upper mold and the moving mold are detachably connected by a bolt structure.

[0009] Preferably, the mold opening and closing drive mechanism includes a first movable frame, a first mounting frame, and a first upright frame; the first movable frame is movably arranged horizontally along the machine frame, the first mounting frame is movably arranged vertically along the first movable frame, and the first upright frame is movably arranged vertically along the first mounting frame; the moving mold is fixedly connected to the first upright frame to drive it to perform mold closing and mold opening actions.

[0010] Preferably, the ejection and picking mechanism includes a second movable frame, a second mounting frame, and a second upright frame; the second movable frame is movably arranged horizontally along the frame, the second mounting frame is movably arranged vertically along the second movable frame, and the second upright frame is movably arranged vertically along the second mounting frame; the first quick docking device is connected to the second upright frame to drive it to grab and remove the cable core.

[0011] Preferably, the first quick docking device includes a fixed base, a pair of grippers, and a drive source. The fixed base is connected to the second upright. The pair of grippers slide synchronously in opposite directions or backwards via a linear guide rail disposed on the fixed base. The drive source is disposed on the fixed base and is used to drive the pair of grippers to slide, thereby clamping or releasing the end of the cable core.

[0012] Preferably, a limiting annular groove is formed on the outer periphery of the end of the cable core, and the inner sidewalls of the pair of grippers are correspondingly provided with protrusions that can be embedded in the limiting annular groove. When the grippers are clamped, the protrusions are engaged in the limiting annular groove to achieve axial limiting.

[0013] Preferably, the fixed mold and / or moving mold integrate a mold temperature regulation system, which includes a circulation channel that can selectively circulate a heating medium or a cooling medium to control the process temperature of the mold cavity.

[0014] The beneficial effects of this invention are: This invention pre-places the cable core as an insert within the mold cavity and directly vulcanizes the adhesive within the annular gap. This completely eliminates the air gaps and poor fit issues caused by manual assembly in the traditional "two-step method," fundamentally preventing the risk of partial discharge and insulation breakdown due to interface defects. Furthermore, by integrating a mold opening and closing drive mechanism, an ejection and removal mechanism, and a quick docking device, this invention achieves full automation from mold closing, adhesive injection, vulcanization, cooling to part removal. Compared to the traditional manual operation method, this equipment enables continuous and efficient cyclic production, significantly shortening the production cycle of a single product. Attached Figure Description

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a processing equipment for producing cable accessories according to this application. Figure 1 ; Figure 2 This is a schematic diagram of the mold, cable accessories, and cable core of this application; Figure 3 This is a schematic diagram of the structure of a processing equipment for producing cable accessories according to this application. Figure 2 ; Figure 4 This is a schematic diagram of the ejection and retrieval mechanism of this application; Figure 5 This is a schematic diagram of the structure of a processing equipment for producing cable accessories according to this application. Figure 3 ; Figure 6 This is a schematic diagram of the structure of a processing equipment for producing cable accessories according to this application. Figure 4 ; Figure 7 For the purposes of this application Figure 3 A magnified view of part A. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0017] The orientation shown in the accompanying drawings should not be construed as limiting the specific scope of protection of the present invention, but is only for reference and understanding of preferred embodiments. The product components shown in the figures can be changed in position, increased in number, or simplified in structure.

[0018] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0019] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0020] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0021] A processing equipment for producing cable accessories includes a frame 1, on which a fixed mold 2 and a movable mold 3 are provided. Glue injection channels 8 are opened on both side walls of the fixed mold 2 or the movable mold 3. A mold for molding cable accessory 1-1 is provided between the fixed mold 2 and the movable mold 3. The mold includes an upper mold 4a and a lower mold 4b, which together form a mold cavity. A cable core 4c is pre-placed in the mold cavity. An annular gap is formed between the outer wall of the cable core 4c and the inner wall of the mold cavity for filling and covering with glue. This annular gap constitutes the molding cavity of cable accessory 1-1. The frame 1 is provided with a mold opening and closing drive mechanism 6 and an independent ejection and picking mechanism 7. The mold opening and closing drive mechanism 6 is connected to the moving mold 3, and the upper mold 4a is detachably connected to the moving mold 3 through the second quick docking device; the mold opening and closing drive mechanism 6 is configured to drive the moving mold 3 and drive the upper mold 4a connected through the second quick docking device to move together, so as to realize the mold closing and separation with the fixed mold 2 and the moving mold 3; the end of the ejection and picking mechanism 7 is provided with a first quick docking device 70, which is used to grab or clamp the cable core 4c after the mold is opened; the ejection and picking mechanism 7 is configured to act directly on the cable core 4c through the first quick docking device 70 to extract and remove the entire cable core 4c covered with cable accessory 1-1 from the lower mold 4b.

[0022] Furthermore, a sealing needle valve 81 is movably inserted into the glue injection channel 8; the sealing needle valve 81 has two working positions: Injection station: The sealing needle valve 81 exits from the injection channel 8, and the external injection equipment injects adhesive into the annular gap through the injection channel 8; Sealing station: After the glue injection is completed, the sealing needle valve 81 is inserted into the glue injection channel 8 and a seal is formed.

[0023] Furthermore, the second quick docking device includes a first drive cylinder 60a mounted on the moving mold 3 and a second drive cylinder 60b mounted on the fixed mold 2. The piston rod of the first drive cylinder 60a moves vertically and has a locking head 61 at its end. The piston rod of the second drive cylinder 60b moves horizontally and has a clamping and limiting member 62 connected to its end. When the mold is closed, the first drive cylinder 60a drives the locking head 61 to move downward, and then the second drive cylinder 60b drives the clamping and limiting member 62 to move laterally, so that the clamping and limiting member 62 directly engages and locks with the locking head 61, thereby achieving the fastening of the fixed mold 2 by locking the locking head 61 onto the clamping and limiting member 62.

[0024] Furthermore, the upper mold 4a and the moving mold 3 are detachably connected by a bolt structure.

[0025] Furthermore, the mold opening and closing drive mechanism 6 includes a first movable frame 63, a first mounting frame 64, and a first upright frame 65; the first movable frame 63 is movably arranged horizontally along the frame 1, the first mounting frame 64 is movably arranged vertically along the first movable frame 63, and the first upright frame 65 is movably arranged vertically along the first mounting frame 64; the moving mold 3 is fixedly connected to the first upright frame 65 to drive it to perform mold closing and mold opening actions.

[0026] Furthermore, the ejection and picking mechanism 7 includes a second movable frame 71, a second mounting frame 72, and a second upright frame 73; the second movable frame 71 is movably arranged horizontally along the frame 1, the second mounting frame 72 is movably arranged vertically along the second movable frame 71, and the second upright frame 73 is movably arranged vertically along the second mounting frame 72; the first quick docking device 70 is connected to the second upright frame 73 to drive it to grab and remove the cable core 4c.

[0027] Furthermore, the first quick docking device 70 includes a fixed base 701, a pair of grippers 702, and a drive source. The fixed base 701 is connected to the second upright 73. The pair of grippers 702 achieve synchronous sliding in opposite directions or back directions through a linear guide rail disposed on the fixed base 701. The drive source is disposed on the fixed base 701 and is used to drive the pair of grippers 702 to slide, so as to clamp or release the end of the cable core 4c.

[0028] Furthermore, a limiting annular groove 41 is formed on the outer periphery of the end of the cable core 4c, and a protrusion 410 that can be embedded in the limiting annular groove 41 is provided on the inner sidewall of the pair of grippers 702. When the grippers 702 clamp, the protrusion 410 is inserted into the limiting annular groove 41 to achieve axial limiting.

[0029] Furthermore, the fixed mold 2 and / or the moving mold 3 are integrated with a mold temperature regulation system, which includes a circulation channel 5. The circulation channel 5 can selectively circulate a heating medium or a cooling medium to control the process temperature of the mold cavity.

[0030] A method for preparing a cable accessory includes the following steps: S1, pre-positioning the cable core: positioning the cable core 4c in the lower mold 4b, with its end protruding from the opening of the moving mold 3; S2, closing and locking the mold: activating the mold opening and closing drive mechanism 6, driving the moving mold 3 and the upper mold 4a connected by the second quick docking device to move together, closing with the upper mold 4a and the lower mold 4b, so that the outer wall of the cable core 4c and the inner wall of the mold cavity formed by the upper mold 4a and the lower mold 4b form an annular gap; subsequently, the second quick docking device is activated to fasten the moving mold 3 to the fixed mold 2; S3, injecting glue and sealing: withdrawing the sealing needle valve 81 from the glue injection channel 8 to the glue injection station, and injecting glue into the annular gap through the glue injection channel 8; After the glue injection is completed, the sealing needle valve 81 is inserted into the sealing position to seal the glue injection channel 8; S4, vulcanization and cooling: heating medium is introduced into the circulating flow channel 5 inside the mold to heat and vulcanize the glue in the mold cavity; after vulcanization is completed, the cooling medium is switched to cool and shape the cable accessory 1-1; S5, mold opening and automatic part removal: the second quick docking device is unlocked first, and then the mold opening and closing drive mechanism 6 drives the moving mold 3 and the upper mold 4a to rise and open the mold, exposing the formed cable accessory 1-1; then, the ejection and part removal mechanism 7 drives the first quick docking device 70 to move and grab the end of the cable core 4c, and automatically removes the entire cable core 4c covering the formed cable accessory 1-1 from the lower mold 4b.

[0031] The working principle of this invention is: As an example 1, the processing equipment of this application is used to produce cable accessory 1-1. The specific implementation of the mold adapted to the cable accessory 1-1 is as follows: the upper mold 4a and the lower mold 4b are jointly arranged to form a mold cavity. The cable core 4c is fixedly arranged in the mold cavity. That is, there is an annular gap between the cable core 4c and the mold cavity. The annular gap is used for injecting adhesive. The adhesive is vulcanized and cured in the annular gap, and finally the required cable accessory 1-1 is formed on the cable core 4c.

[0032] The specific operation process is as follows: The mold opening and closing drive mechanism 6 starts working, driving the moving mold 3 and the upper mold 4a locked by the second quick docking device to move together, and complete the mold closing with the fixed mold 2 and the lower mold 4b to form a closed mold cavity with an annular gap inside. This annular gap constitutes the forming cavity of the cable accessory 1-1.

[0033] After mold closing, the glue injection process begins. At this time, the sealing needle valve 81 retracts from the glue injection station, and the external glue injection equipment injects liquid or semi-liquid glue into the molding cavity under high pressure through the glue injection channel 8. After glue injection is completed, the sealing needle valve 81 immediately enters the sealing station, inserts and seals the glue injection channel 8, preventing the glue from leaking backward due to the pressure inside the mold cavity during the subsequent vulcanization process.

[0034] Simultaneously or subsequently, the temperature control system integrated within the mold begins to play a crucial role. This system connects to an external temperature control unit (not shown) via a media circulation channel 5 pre-installed within the fixed mold 2 and / or moving mold 3 (this channel is simplified or partially shown in the accompanying drawings for clarity of the core mold structure), forming a complete temperature control loop. Based on a pre-set vulcanization process curve, this system can flexibly introduce a heating medium (such as high-temperature water) into the media circulation channel 5 to uniformly and efficiently heat the rubber compound within the mold cavity 6, promoting cross-linking vulcanization and complete curing; or, after the vulcanization reaction is complete, it can switch to introducing a cooling medium (such as cooling water) to rapidly and uniformly cool the mold and the molded cable accessories, achieving shaping and shortening the production cycle.

[0035] After the rubber compound has vulcanized and cooled to set, the mold opening and closing drive mechanism 6 is activated again, driving the moving mold 3 and the upper mold 4a to rise and move away together, separating from the lower mold 4b, thereby exposing the finished cable accessory 1-1 that has been coated and molded on the cable core 4c. Next, the ejection and removal mechanism 7 begins operation. The first quick-connect device 70, connected to the lower end, is positioned at the end of the cable core 4c, and the cable core 4c is firmly clamped by the engagement of the protrusion 410 on the gripper 702 and the limiting ring groove 41 at the end of the core. Finally, the ejection and removal mechanism 7 removes the entire finished product from the lower mold 4b, completing a full production cycle.

[0036] In one specific embodiment of this application, the mold opening and closing drive mechanism 6 can be implemented using a gantry structure. Specifically, the mold opening and closing drive mechanism 6 includes a first moving frame 63, a first mounting frame 64, and a first upright frame 65, and its working principle is as follows: The first moving frame 63 is driven by a first drive motor and can move horizontally along the guide rail on the frame 1. The first mounting frame 64 is driven by a second drive motor and can move horizontally along the first moving frame 63. The first upright frame 65 is driven by a third drive motor and can move vertically along the first mounting frame 64. The moving mold 3 and the upper mold 4a are finally fixedly mounted on the first upright frame 65. Through the coordinated control of the above three directional motors, the moving mold 3 and the upper mold 4a can be driven to move in three-dimensional space, thereby completing the mold closing and separation actions with the fixed mold 2 and the moving mold 3. As an embodiment 1, the moving mold 3 can be fixed to the first upright frame 65 by bolts. The above-mentioned drive motors are not shown in the figure.

[0037] In the above technical solution, the second quick-connection device of this application can be configured with the following structure: First, a first drive cylinder 60a is fixedly installed on the moving mold 3, and the first drive cylinder 60a is connected to a locking head 61. A second drive cylinder 60b is fixedly installed on the fixed mold 2, and a clamping and limiting member 62 is connected to the second drive cylinder 60b. When the mold closes, firstly, the first drive cylinder 60a installed on the moving mold 3 drives the locking head 61 to extend vertically downward. Immediately afterwards, the second drive cylinder 60b installed on the fixed mold 2 drives the clamping and limiting member 62 to move horizontally, directly engaging and locking with the downward-moving locking head 61. This firmly pulls the moving mold 3 onto the upper mold 4a, ensuring that the mold cavity does not leak during high-pressure injection. When the mold needs to be opened, after the second quick-connection device unlocks, the second drive cylinder 60b acts first, its piston rod retracts in the opposite direction, driving the clamping and limiting member 62 connected to it to move laterally, completely disengaging it from the engagement surface of the locking head 61. This step releases the lateral constraint and radial locking of the locking head 61, and is the crucial first step in unlocking. The first drive cylinder 60a, mounted on the moving mold 3, then actuates, its piston rod retracting upwards, driving the locking head 61 to move vertically upwards, thus completing the unlocking. The mold opening and closing drive mechanism 6 then drives the moving mold 3 and the upper mold 4a to rise as a whole, completing the mold opening and exposing the cable accessory 1-1 product that has been formed on the cable core 4c.

[0038] Regarding how to remove the cable core 4c and the cable accessory 1-1 covering it using the ejection mechanism 7 after mold opening, the second moving frame 71, the second mounting frame 72, and the second upright frame 73 can be selected to move in coordination. The second upright frame 73 drives the first quick docking device 70 to move above the end of the cable core 4c. The drive source of the first quick docking device 70 is activated, driving a pair of grippers 702 to slide towards each other along a linear guide rail, so that the protrusions 410 on the inner sidewalls of the grippers 702 are embedded in the limiting ring grooves 41 at the end of the cable core 4c, achieving reliable clamping and axial limiting. Subsequently, the ejection mechanism 7 lifts the entire cable core 4c and cable accessory 1-1 upwards, transports them to the designated finished product area, and then releases them, completing the fully automatic part removal process. As an example 1, the drive source can be a motor, with each gripper 702 connected to a corresponding motor. The ejection and part-removal mechanism 7 achieves spatial movement through the linkage of its second moving frame 71, second mounting frame 72 and second upright frame 73. Its movement mode refers to the cooperation mode of the first moving frame 63, first mounting frame 64 and first upright frame 65 in the mold opening and closing drive mechanism 6, so as to drive the first quick docking device 70 to complete positioning and part removal.

[0039] This invention pre-places the cable core 4c as an insert within the mold cavity and directly vulcanizes the adhesive within the annular gap. This completely eliminates the air gaps and poor fit issues caused by manual assembly in the traditional "two-step method," fundamentally preventing the risk of partial discharge and insulation breakdown due to interface defects. Furthermore, by integrating the mold opening and closing drive mechanism 6, the ejection and removal mechanism 7, and the quick docking device, this invention achieves full automation from mold closing, adhesive injection, vulcanization, cooling to part removal. Compared to the traditional manual operation method, this equipment enables continuous and efficient cyclic production, significantly shortening the production cycle of a single product.

[0040] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A processing equipment for producing cable accessories, characterized in that: The system includes a frame (1), on which a fixed mold (2) and a moving mold (3) are provided. Injection channels (8) are provided on both sides of the fixed mold (2) or the moving mold (3). A mold for molding a cable accessory (1-1) is provided between the fixed mold (2) and the moving mold (3). The mold includes an upper mold (4a) and a lower mold (4b). The upper mold (4a) and the lower mold (4b) together form a mold cavity. A cable core (4c) is pre-placed in the mold cavity. An annular gap is formed between the outer wall of the cable core (4c) and the inner wall of the mold cavity for filling and covering with adhesive. This annular gap constitutes the molding cavity of the cable accessory (1-1). The frame (1) is provided with an opening and closing mold drive mechanism (6) and an independent ejection and removal mechanism (7). The moving mechanism (6) is connected to the moving mold (3), and the upper mold (4a) is detachably connected to the moving mold (3) through the second quick docking device; the mold opening and closing driving mechanism (6) is configured to drive the moving mold (3) and drive the upper mold (4a) connected through the second quick docking device to move together, so as to realize the mold closing and separation with the fixed mold (2) and the moving mold (3); the end of the ejection and picking mechanism (7) is provided with a first quick docking device (70) for grabbing or clamping the cable core (4c) after the mold is opened; the ejection and picking mechanism (7) is configured to act directly on the cable core (4c) through the first quick docking device (70) to extract and remove the cable core (4c) covered with cable accessories (1-1) from the lower mold (4b).

2. The processing equipment for producing cable accessories according to claim 1, characterized in that, A sealing needle valve (81) is movably inserted into the glue injection channel (8); the sealing needle valve (81) has two working positions: Injection station: The sealing needle valve (81) exits from the injection channel (8), and the external injection equipment injects adhesive into the annular gap through the injection channel (8); Sealing station: After the glue injection is completed, the sealing needle valve (81) is inserted into the glue injection channel (8) and a seal is formed.

3. The processing equipment for producing cable accessories according to claim 2, characterized in that, The second quick docking device includes a first drive cylinder (60a) mounted on the moving mold (3) and a second drive cylinder (60b) mounted on the fixed mold (2). The piston rod of the first drive cylinder (60a) moves vertically and is provided with a locking head (61) at its end. The piston rod of the second drive cylinder (60b) moves horizontally and is connected to a clamping limit member (62) at its end. When the mold is closed, the first drive cylinder (60a) drives the locking head (61) to move downward, and then the second drive cylinder (60b) drives the clamping limit member (62) to move laterally, so that the clamping limit member (62) directly engages and locks the locking head (61), thereby achieving the fastening of the fixed mold (2) by locking the locking head (61) on the clamping limit member (62).

4. The processing equipment for producing cable accessories according to claim 1, characterized in that, The upper mold (4a) and the moving mold (3) are detachably connected by bolts.

5. A processing equipment for producing cable accessories according to claim 3, characterized in that, The mold opening and closing drive mechanism (6) includes a first movable frame (63), a first mounting frame (64), and a first upright frame (65); the first movable frame (63) can be arranged to move horizontally along the frame (1), the first mounting frame (64) can be arranged to move horizontally along the first movable frame (63), and the first upright frame (65) can be arranged to move vertically along the first mounting frame (64); the moving mold (3) is fixedly connected to the first upright frame (65) to drive it to perform mold closing and mold opening actions.

6. The processing equipment for producing cable accessories according to claim 1, characterized in that, The ejection and picking mechanism (7) includes a second movable frame (71), a second mounting frame (72), and a second upright frame (73); the second movable frame (71) is movably arranged horizontally along the frame (1), the second mounting frame (72) is movably arranged vertically along the second movable frame (71), and the second upright frame (73) is movably arranged vertically along the second mounting frame (72); the first quick docking device (70) is connected to the second upright frame (73) to drive it to grab and remove the cable core (4c).

7. The processing equipment for producing cable accessories according to claim 1, characterized in that, The first quick docking device (70) includes a fixed base (701), a pair of grippers (702) and a drive source. The fixed base (701) is connected to the second stand (73). The pair of grippers (702) slide synchronously in opposite directions or in opposite directions through a linear guide rail set on the fixed base (701). The drive source is set on the fixed base (701) and is used to drive the pair of grippers (702) to slide, so as to clamp or release the end of the cable core (4c).

8. A processing equipment for producing cable accessories according to claim 7, characterized in that, The cable core (4c) has a limiting annular groove (41) on its outer periphery. The inner sidewalls of the pair of grippers (702) are provided with protrusions (410) that can be embedded in the limiting annular groove (41). When the grippers (702) clamp, the protrusions (410) are inserted into the limiting annular groove (41) to achieve axial limiting.

9. A processing equipment for producing cable accessories according to claim 1, characterized in that, The fixed mold (2) and / or the moving mold (3) are integrated with a mold temperature regulation system, which includes a circulation channel (5) that can selectively circulate a heating medium or a cooling medium to control the process temperature of the mold cavity.

10. A method for preparing a cable accessory, characterized in that, The processing equipment for producing cable accessories (1-1) as described in claim 5 is used, and includes the following steps: S1, Pre-positioning the wire core: Positioning the cable core (4c) in the lower mold (4b) so that its end protrudes from the opening of the moving mold (3); S2, Mold closing and locking: Activating the mold opening and closing drive mechanism (6) to drive the moving mold (3) and the upper mold (4a) connected by the second quick docking device to move together, and close the mold with the upper mold (4a) and the lower mold (4b), so that the outer wall of the cable core (4c) and the inner wall of the mold cavity formed by the upper mold (4a) and the lower mold (4b) form an annular gap; Subsequently, the second quick docking device is activated to fasten the moving mold (3) to the fixed mold (2); S3, Glue injection and sealing: Exiting the sealing needle valve (81) from the glue injection channel (8) to the glue injection station, and injecting glue into the target through the glue injection channel (8). S4. Injecting adhesive into the annular gap; after the adhesive injection is completed, insert the sealing needle valve (81) into the sealing position to seal the adhesive injection channel (8); S5. Vulcanization and cooling: introduce heating medium into the circulating flow channel (5) inside the mold to heat and vulcanize the adhesive in the mold cavity; after the vulcanization is completed, switch to introduce cooling medium to cool and shape the cable accessory (1-1); S6. Mold opening and automatic part removal: the second quick docking device unlocks first, and then the mold opening and closing drive mechanism (6) drives the moving mold (3) and the upper mold (4a) to rise and open the mold, exposing the formed cable accessory (1-1); then, the ejection and part removal mechanism (7) drives the first quick docking device (70) to move and grab the end of the cable core (4c), and automatically remove the entire cable core (4c) covered with the formed cable accessory (1-1) from the lower mold (4b).

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