An electrical connector insulation piece coating apparatus

Abstract

The present application relates to the technical fields of insulation spraying equipment, and discloses an electric connector insulation coating device, which comprises a base, a feeding structure is arranged on the upper wall of the left end of the base, a guide structure is arranged on the upper wall of the left end of the base, a plurality of pickup structures are detachably arranged on the guide structure, a spraying structure is arranged on the upper wall of the right end of the base, and the spraying structure corresponds to the guide structure, the three-axis electric sliding rails of the feeding structure are linked, the guide structure and the pickup structure are cooperatively matched, the automatic grabbing of the pickup structure, the full-automatic insertion and feeding of the tubular insulation, the automatic feeding and transfer of the workpiece are realized, manual clamping and manual transfer of the workpiece are not needed, the synchronous and continuous conveying of multiple workpieces is realized through the conveying unit of the spraying structure, the whole process of series spraying, drying and unloading is connected continuously without interruption, the pickup structure is recycled, and the continuous production of the assembly line is realized.

Description

Technical Field

[0001] This invention relates to the field of insulating component spraying equipment, specifically to a coating device for insulating components of electrical connectors. Background Technology

[0002] As a key basic component in electrical systems for achieving circuit connection and signal transmission, electrical connectors often use tubular structures for their insulation components. They require surface coating with an insulating coating to improve their voltage resistance, moisture resistance, aging resistance, and electrical insulation performance. Currently, the coating process for tubular insulation components generally relies on manual feeding, semi-automatic spraying, or simple tooling for auxiliary processing. Some equipment uses single-sided fixed spraying, which prevents the workpiece from rotating independently, further exacerbating the uneven coating phenomenon and directly affecting the insulation reliability and service life of electrical connectors. The loading and transfer process is highly dependent on manual operation. The insulating parts need to be clamped into the tooling one by one by hand, and then manually transferred to the spraying station. This is labor-intensive and inefficient. At the same time, the conventional picking and clamping structures are mostly rigid and fixed, which can easily cause compression to the inner wall of the tubular insulating parts, and the clamping part is blocked by the spraying area. Summary of the Invention

[0003] The purpose of this invention is to provide an electrical connector insulation coating apparatus to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a coating device for electrical connector insulation components, comprising a base, a delivery structure disposed on the upper wall of the base near the left end, a guide structure disposed on the upper wall of the left end of the base, and the guide structure being located behind the delivery structure, wherein a plurality of pickup structures are detachably disposed on the guide structure, and the pickup structures can be carried and transported by the delivery structure, and a spraying structure disposed on the upper wall of the right end of the base, and the spraying structure corresponding to the guide structure, the spraying structure being capable of supporting the pickup structures; wherein, the guide structure is used to arrange and move the pickup structures, the delivery structure is used to transport the pickup structures, and the pickup structures are used to suspend and pick up tubular insulation components, while the delivery structure can deliver the pickup structures onto the spraying structure, and the spraying structure sprays, dries, and removes the suspended insulation components.

[0005] Preferably, the dispensing structure includes a first electric slide rail, a second electric slide rail, a third electric slide rail, a mounting frame, a locking unit, and a collection bin; the first electric slide rail is fixedly mounted on the upper wall of the base and near the left end; the second electric slide rail is vertically mounted on the first electric slide rail and moves left and right via the first electric slide rail; the third electric slide rail is mounted on the second electric slide rail and moves up and down via the second electric slide rail; the mounting frame is fixedly mounted on the third electric slide rail and moves back and forth via the third electric slide rail; the locking unit is fixedly mounted on the mounting frame; and the collection bin is fixedly mounted on the upper wall of the base, with the collection bin corresponding to the middle of the first electric slide rail.

[0006] Preferably, the locking unit includes a lock seat, a pair of locking rods, a pair of baffles, and a pair of springs; the lock seat is fixedly mounted on the mounting bracket, and a through hole is provided in the middle of the lock seat. The left and right ends of the lock seat are symmetrically provided with convex telescopic grooves communicating with the through hole near the bottom. The pair of locking rods are symmetrically and movably inserted into the telescopic grooves, and the width of one end of the locking rod is greater than the width of the other end. One end of each pair of locking rods is a trapezoidal structure, and the opposite sidewalls are inclined. The pair of baffles are respectively screwed to the other end of the locking rods, and the baffles are attached to the sidewalls of the lock seat. The pair of springs are respectively movably fitted in the middle of the locking rods, and the springs can be compressed through one end of the locking rods.

[0007] Preferably, the guiding structure includes a first support, a first conveyor frame, a first conveyor belt assembly, a cross frame, and a first bracket; one end of the first support is fixedly disposed on the upper left wall of the base and located behind the first electric slide rail; the first conveyor frame is concave and is fixedly disposed on the other end of the first support; the first conveyor belt assembly is disposed on the first conveyor frame, and the width of the pulley in the first conveyor belt assembly is greater than the width of the first conveyor frame; the cross frame is a portal frame, one end of the cross frame is fixedly disposed on the upper wall of the first conveyor frame; one end of the first bracket is fixedly disposed on the other end of the cross frame, and the upper wall of the first bracket and the upper wall of the first conveyor frame are on the same horizontal plane, and the first bracket and the first conveyor frame have a certain distance between them.

[0008] Preferably, the pickup structure includes a mounting rod, a first card holder, a pair of stops, a second card holder, and a suspension unit; one end of the mounting rod can movably pass through the first bracket and the first conveyor frame, and the mounting rod is in contact with the belt body of the first conveyor belt assembly; the first card holder is fixedly installed on the top of the mounting rod, and the first card holder has a frustum-shaped structure; the pair of stops are respectively fixedly fitted on the mounting rod and located below the first card holder; the pair of stops and the mounting rod are fitted together to form an I-shaped structure, with one of the stops in contact with the upper wall of the first bracket; the second card holder is movably fitted on the top of the mounting rod, and the second card holder is located between the stops and the first card holder; the upper and lower side walls of the second card holder are both inclined walls, and the upper and lower sides of the second card holder have a symmetrical frustum-shaped structure; the suspension unit is fixedly installed on the bottom of the mounting rod.

[0009] Preferably, the suspension unit includes a main body, two pairs of hanging arms, two pairs of shock-absorbing springs, and two pairs of cone caps; the main body is fixedly installed at the bottom end of the mounting rod, and two pairs of flip grooves are equidistantly arranged on the side wall of the main body; one end of each pair of hanging arms is movably embedded in the bottom end of the flip groove; both pairs of hanging arms are concave rods; both ends of each pair of shock-absorbing springs are movably connected to the flip groove and one end of the hanging arm, and the shock-absorbing springs are inclined; the shock-absorbing springs can be fastened by the hanging arms; and the two pairs of cone caps are fixedly installed on the other end of the hanging arms.

[0010] Preferably, the spraying structure includes a conveying unit, a spraying unit, a drying chamber body, and a material unloading unit; the conveying unit is fixedly installed on the upper right wall of the base, the spraying unit is fixedly installed on the upper wall of the base and is located on the rear side of the left end of the conveying unit, the drying chamber body is fixedly installed on the upper right wall of the base, and the right end of the conveying unit can penetrate through the rear side wall and the left side wall of the drying chamber body, and the material unloading unit is fixedly installed on the front side of the middle part of the conveying unit.

[0011] Preferably, the conveying unit includes a second conveying frame, a first motor, a pair of drive shafts, a second conveyor belt assembly, and several second brackets; one end of the second conveying frame is fixedly mounted on the upper wall of the base and located to the right of the first electric slide rail; the first motor is fixedly mounted on the upper wall of one end of the second conveying frame; one end of each pair of drive shafts is movably mounted on the second conveying frame and connected to the drive end of the first motor; the second conveyor belt assembly is disposed between the pair of drive shafts and is supported and rotated by the drive shafts; the several second brackets are all H-shaped structures; the several second brackets are equidistantly disposed on the belt body of the second conveyor belt assembly and move back and forth by the second conveyor belt assembly; the distance between the two ends of the second brackets matches the diameter of the mounting rod.

[0012] Preferably, the spraying unit includes a spraying box, several nozzles, a hydraulic cylinder body, a third conveyor frame, and a third conveyor belt assembly; the spraying box is fixedly mounted on the upper wall of the base, and the spraying box corresponds to the left end of the second conveyor belt assembly; the front side wall of the spraying box has a moving groove corresponding to the second bracket, and the left and right side walls of the spraying box have symmetrically arranged input ports; several nozzles are respectively movably mounted on the inner side wall of the spraying box, and the nozzles can be tilted relative to each other; one end of the hydraulic cylinder body is fixedly mounted on the front side wall of the spraying box and located below the moving groove; one end of the third conveyor frame movably penetrates the front side wall of the spraying box, and one end of the third conveyor frame is connected to the telescopic end of the hydraulic cylinder body; the third conveyor belt assembly is movably mounted on the other end of the third conveyor frame, and the third conveyor belt assembly is located above the nozzles; the belt body in the third conveyor belt assembly is triangular.

[0013] Preferably, the unloading unit includes a fourth electric slide rail, an unloading frame, and a camera; the fourth electric slide rail is fixedly mounted on the upper wall of the base and located behind the second conveyor frame; one end of the unloading frame is fixedly mounted on the fourth electric slide rail and moves up and down via the fourth electric slide rail; the other end of the unloading frame is a rectangular frame and can be fitted onto the main body; the camera is fixedly mounted in the middle of the unloading frame and corresponds to the second conveyor belt assembly.

[0014] Preferably, in order to achieve uniform spraying, the third conveyor belt assembly can contact the mounting rod of the pickup structure and drive the mounting rod to rotate.

[0015] Preferably, the locking unit can be fitted onto the first card holder of the pickup structure, and the first card holder is locked with the locking rod, and the locking unit is unlocked by contacting the second card holder downwards.

[0016] Preferably, the delivery structure can transport the pickup structure from the guide structure or directly dock with the pickup structure carried on the second bracket in the spraying structure.

[0017] This invention addresses the core pain points of existing coating operations for tubular insulation components in electrical connectors, including high reliance on manual labor, poor coating uniformity, easy workpiece damage, discontinuous process connections, and high equipment failure rates. Through a fully automated structural design and innovative workpiece bearing, coating, and transfer schemes, it achieves integrated continuous operation across the entire process of insulation component loading, spraying, drying, and unloading. Specific benefits are as follows: 1. This invention achieves automatic gripping of the pickup structure, fully automatic insertion and feeding of tubular insulating parts, and automatic delivery and transfer of workpieces through the linkage of the three-axis electric slide rail of the delivery structure, in conjunction with the coordinated operation of the guide structure and the pickup structure. It eliminates the need for manual clamping and manual transfer of workpieces, completely solving the problems of high labor intensity and low feeding efficiency in traditional operations. At the same time, the conveying unit of the spraying structure enables multi-workpiece cycle-based, synchronous and continuous conveying, connecting the spraying, drying and unloading processes in series. The process is seamless and uninterrupted. Combined with the reusable pickup structure, it realizes continuous production line production, and the production efficiency is significantly improved compared with traditional semi-automatic equipment.

[0018] 2. This invention, through the innovative design of the spraying unit, utilizes a hydraulic cylinder to drive the third conveyor belt assembly to automatically engage with the mounting rod of the pickup structure. The triangular belt body drives the mounting rod and the suspended insulating parts to rotate at a uniform speed. Combined with multiple sets of spray nozzles arranged circumferentially within the spraying box, it achieves all-round, dead-angle-free spraying of the outer wall of the tubular insulating parts, completely solving the defects such as uneven coating thickness, missed coating, and sagging caused by traditional single-sided fixed spraying. The coating is uniform and consistent, effectively improving the voltage resistance, moisture resistance, aging resistance, and electrical insulation performance of the insulating parts, fundamentally ensuring the insulation reliability and long service life of the finished electrical connectors.

[0019] 3. This invention utilizes a suspension unit at the end of the picking structure, employing an elastic, flip-up hanging arm combined with a shock-absorbing spring design to achieve flexible suspension and fixation from inside the tubular insulating component, replacing the traditional rigid clamping structure. On the one hand, it avoids mechanical damage such as squeezing deformation and surface scratches caused by rigid clamping to the inner wall of the insulating component; on the other hand, it completely eliminates the obstruction of the spraying area by the clamping part, achieving complete coating of the entire outer surface of the insulating component and effectively reducing the workpiece scrap rate. At the same time, the conical cap guide design at the end of the hanging arm ensures smooth insertion and removal, and the shock-absorbing spring can buffer the vibration and impact throughout the process, preventing the workpiece from falling off, further improving the stability of the processing and the yield of finished products.

[0020] 4. The locking unit of this invention adopts a pure mechanical conical extrusion and spring reset structure, which can automatically complete the rapid locking and smooth unlocking of the picking structure without the need for additional drive components. The action response is rapid and the cooperation is reliable, which greatly simplifies the equipment structure and reduces the control complexity and equipment failure rate. At the same time, the guide structure provides orderly arrangement and stable and continuous conveying of the picking structure, and provides standardized and highly consistent docking stations for the delivery structure. The H-shaped second bracket of the conveying unit is precisely matched with the mounting rod of the picking structure. There is no shaking or deviation during the conveying process, and the docking and positioning of each station is accurate. The overall operation stability is greatly improved, which effectively reduces equipment maintenance costs and downtime.

[0021] 5. This invention achieves precise alignment and automated, gentle unloading of workpieces through camera visual positioning of the unloading unit combined with electric slide rail drive. The unloading process does not damage the cured coating or the workpiece body, and the unloading operation can be completed without manual intervention, further ensuring the continuity of the production line operation. At the same time, the empty picking structure after unloading can be directly picked up again by the delivery structure for loading and reuse, without the need for additional recycling and transfer processes, further simplifying the equipment process, reducing tooling investment costs, and perfectly adapting to the needs of large-scale, continuous industrial production of tubular insulating parts. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly structure of the present invention; Figure 2 This is a schematic diagram of the dispensing structure of the present invention. Figure 3 This is a diagram illustrating the locking unit of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the guiding structure of the present invention; Figure 5 This is an enlarged schematic diagram of the pickup structure assembly of the present invention; Figure 6 This is a diagram illustrating the suspension unit of the present invention; Figure 7 This is a schematic diagram of the disassembled spraying structure of the present invention; Figure 8 for Figure 4 Enlarged view of section A in the image; Figure 9 for Figure 7 Enlarged view of section B in the image; Figure 10 for Figure 1 A magnified view of section C in the image.

[0023] In the diagram: 1. Base; 2. Dispensing structure; 21. First electric slide rail; 22. Second electric slide rail; 23. Third electric slide rail; 24. Mounting bracket; 25. Locking unit; 251. Lock seat; 252. Locking rod; 253. Baffle plate; 254. Spring; 26. Collection bucket; 3. Guiding structure; 31. First support; 32. First conveyor frame; 33. First conveyor belt assembly; 34. Cross frame; 35. First bracket; 4. Picking structure; 41. Mounting rod; 42. First card seat; 43. Baffle seat; 44. Second card seat; 45. Suspension unit; 451. Main... 452. Body base, 453. Hanging arm, 454. Shock-absorbing spring, 455. Conical cap, 5. Spraying structure, 51. Conveying unit, 511. Second conveyor frame, 512. First motor, 513. Drive shaft, 514. Second conveyor belt assembly, 515. Second bracket, 52. Spraying unit, 521. Spraying box, 522. Spray nozzle, 523. Hydraulic cylinder body, 524. Third conveyor frame, 525. Third conveyor belt assembly, 53. Drying box body, 54. Unloading unit, 541. Fourth electric slide rail, 542. Unloading rack, 543. Camera, 6. Moving trough. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-10 This invention provides a technical solution: a coating device for insulating components of an electrical connector, comprising a base 1, a delivery structure 2 disposed on the upper wall of the base 1 near the left end, a guide structure 3 disposed on the upper wall of the left end of the base 1 and located behind the delivery structure 2, a plurality of pickup structures 4 detachably disposed on the guide structure 3 and capable of being carried and transported by the delivery structure 2, and a spraying structure 5 disposed on the upper wall of the right end of the base 1 and corresponding to the guide structure 3, the spraying structure 5 capable of supporting the pickup structures 4; wherein, the guide structure 3 is used to arrange and move the pickup structures 4, the delivery structure 2 is used to transport the pickup structures 4 and realize the suspension and pickup of tubular insulating components through the pickup structures 4, and the delivery structure 2 can deliver the pickup structures 4 onto the spraying structure 5, the spraying structure 5 sprays, dries and removes the suspended insulating components.

[0026] As a preferred embodiment, the dispensing structure 2 further includes a first electric slide rail 21, a second electric slide rail 22, a third electric slide rail 23, a mounting frame 24, a locking unit 25, and a collection bin 26. The first electric slide rail 21 is fixedly mounted on the upper wall of the base 1 near the left end. The second electric slide rail 22 is vertically mounted on the first electric slide rail 21 and moves left and right via the first electric slide rail 21. The third electric slide rail 23 is mounted on the second electric slide rail 22 and moves up and down via the second electric slide rail 22. The mounting frame 24 is fixedly mounted on the third electric slide rail 23 and moves back and forth via the third electric slide rail 23. The locking unit 25 is fixedly mounted on the mounting frame 24. The collection bin 26 is fixedly mounted on the base 1. The upper wall is provided, and the collection bin 26 corresponds to the middle of the first electric slide rail 21; the first electric slide rail 21 drives the second electric slide rail 22 to move in the left and right direction along the base 1, realizing the left and right position switching of the locking unit 25; the second electric slide rail 22 drives the third electric slide rail 23 to rise and fall in the vertical direction, controlling the height position of the locking unit 25 so that it can dock with the picking structure 4 or extend into the collection bin 26; the third electric slide rail 23 drives the mounting frame 24 and the locking unit 25 to move in the front and back direction, completing the docking, gripping and insertion of the locking unit 25 with the picking structure 4 and inserting the insulating parts into the collection bin 26; the collection bin 26 is fixed at the corresponding position in the middle of the first electric slide rail 21, providing a stable storage and insertion position for the insulating parts.

[0027] More specifically, the automatic linkage of left and right, lifting and forward and backward three axes is realized through the first electric slide rail 21, the second electric slide rail 22 and the third electric slide rail 23. It can accurately complete the entire process of automatic docking, grabbing, handling, feeding and placing of the picking structure 4 without manual intervention, which improves the automation level and positioning accuracy of feeding and transfer. The structure is compact and stable in operation, and can efficiently complete the automatic insertion and feeding of insulating parts.

[0028] As a preferred embodiment, the locking unit 25 further includes a lock seat 251, a pair of locking rods 252, a pair of baffles 253, and a pair of springs 254. The lock seat 251 is fixedly mounted on the mounting bracket 24. A through-hole is provided in the center of the lock seat 251. Symmetrically arranged convex telescopic grooves communicating with the through-hole are provided at both ends of the lock seat 251 near the bottom. The pair of locking rods 252 are symmetrically and movably inserted into the telescopic grooves, with one end of the locking rod 252 being wider than the other end. One end of each locking rod 252 is trapezoidal, and the opposite sidewalls are inclined. The pair of baffles 253 are respectively screwed onto the other end of the locking rods 252, and the baffles 253 are fitted against the sidewalls of the lock seat 251. The pair of springs 254 are respectively movably fitted into the center of the locking rods 252, and the springs 254 can be compressed through one end of the locking rods 252. The lock seat 251 moves with the mounting bracket 24 to the top of the pickup structure 4 and... When the locking mechanism 4 is inserted downwards, the first locking seat 42 of the pickup structure 4 is inserted into the insertion hole in the middle of the lock seat 251. During the upward movement of the first locking seat 42, the trapezoidal inclined wall at the end of the locking rod 252 is pressed, causing the pair of locking rods 252 to retract into the telescopic grooves on both sides of the lock seat 251, and the spring 254 is compressed. After the first locking seat 42 passes the trapezoidal end of the locking rod 252, the spring 254 returns to its original position and pushes the locking rod 252 out. The wider end of the locking rod 252 is held below the first locking seat 42, thus locking and fixing the pickup structure 4. When unlocking, the lock seat 251 continues to move downwards, causing the locking rod 252 to contact the second locking seat 44 of the pickup structure 4, causing the locking rod 252 to move below the second locking seat 44. Then the lock seat 251 is moved upwards, causing the second locking seat 44 to fit and connect with the first locking seat 42. Thus, the second locking seat 44 causes the locking rod 252 to retract and pass over the first locking seat 42 to unlock.

[0029] More specifically, through a purely mechanical conical extrusion and spring 254 reset structure, the locking and unlocking of the picking structure 4 can be completed automatically. The action is reliable and the response is rapid. No additional driving components are required. The structure is simple and compact with a low failure rate. It can accurately realize the rapid docking and separation of the delivery structure 2 and the picking structure 4, ensuring that the handling and loading process is stable and does not fall off.

[0030] As a preferred embodiment, the guiding structure 3 further includes a first support 31, a first conveyor frame 32, a first conveyor belt assembly 33, a cross frame 34, and a first bracket 35; one end of the first support 31 is fixedly mounted on the upper left wall of the base 1 and located behind the first electric slide rail 21; the first conveyor frame 32 is concave and is fixedly mounted on the other end of the first support 31; the first conveyor belt assembly 33 is mounted on the first conveyor frame 32, and the width of the pulley in the first conveyor belt assembly 33 is greater than the width of the first conveyor frame 32; the cross frame 34 is a portal frame, one end of the cross frame 34 is fixedly mounted on the upper wall of the first conveyor frame 32; one end of the first bracket 35 is fixedly mounted on the other end of the cross frame 34, and the upper wall of the first bracket 35 is on the same horizontal plane as the upper wall of the first conveyor frame 32, with a certain distance between the first bracket 35 and the first conveyor frame 32; The bracket 31 provides stable support for the first conveyor frame 32, keeping the first conveyor frame 32 in a horizontal installation state. The first conveyor belt assembly 33 is powered on and operates, using the friction between the belt body and the mounting rod 41 of the pickup structure 4 to drive the pickup structure 4 placed between the first conveyor frame 32 and the first bracket 35 to move forward in an orderly manner along a set direction. The cross frame 34 firmly connects the first bracket 35 and the first conveyor frame 32, keeping the upper wall of the first bracket 35 and the upper wall of the first conveyor frame 32 coplanar, providing a flat support surface for the pickup structure 4. A gap is reserved between the first bracket 35 and the first conveyor frame 32 for the mounting rod 41 of the pickup structure 4 to pass through and fit against the belt body of the first conveyor belt assembly 33, limiting and guiding the pickup structure 4 during the conveying process, so that multiple pickup structures 4 are arranged in sequence and conveyed stably, providing a unified and precise docking station for the delivery structure 2.

[0031] More specifically, by achieving automatic arrangement and continuous and stable conveying of the picking structure 4, with a straight conveying path and high positioning consistency, it can provide a standardized docking position for the delivery structure 2. The structure is simple, the operation is smooth and without jamming, and the conveying efficiency and docking accuracy before loading are effectively improved.

[0032] As a preferred embodiment, the pickup structure 4 further includes a mounting rod 41, a first retaining seat 42, a pair of stops 43, a second retaining seat 44, and a suspension unit 45. One end of the mounting rod 41 can movably pass through the first bracket 35 and the first conveyor frame 32, and the mounting rod 41 is in contact with the belt body of the first conveyor belt assembly 33. The first retaining seat 42 is fixedly mounted on the top of the mounting rod 41 and has a frustoconical structure. The pair of stops 43 are respectively fixedly fitted onto the mounting rod 41 and are located at the first... Below the first bracket 42, a pair of stops 43 are fitted together with the mounting rod 41 in an I-shape. One stop 43 is attached to the upper wall of the first bracket 35. The second bracket 44 is movably fitted onto the top of the mounting rod 41, and is located between the stop 43 and the first bracket 42. The upper and lower side walls of the second bracket 44 are inclined, and the second bracket 44 has a symmetrical frustum structure. The suspension unit 45 is fixedly mounted on the bottom end of the mounting rod 41. The mounting rod 41 serves as the main load-bearing member, and the installation... Rod 41 passes through the gap between the first bracket 35 and the first conveyor frame 32 and fits tightly against the belt of the first conveyor belt assembly 33, relying on the friction of the conveyor belt to achieve directional conveying with the guide structure 3; a pair of stops 43 cooperate with the mounting rod 41 to form an I-shaped structure, one of the stops 43 is attached to the upper wall of the first bracket 35 to axially limit the mounting rod 41 and prevent shaking, deflection or falling off during the conveying process; the first locking seat 42 serves as the locking part of the locking unit 25, utilizing a frustum-shaped structure. The locking seat 251 is easily inserted into and locked with the locking rod 252; the second locking seat 44 is movably fitted onto the mounting rod 41 and located between the stop 43 and the first locking seat 42. Its symmetrical truncated cones and inclined wall structure are used to contact the locking rod 252 during the unlocking stage and squeeze the locking rod 252 to retract, so as to realize the smooth separation of the locking unit 25 and the picking structure 4; the suspension unit 45 at the bottom of the mounting rod 41 is used to directly support and suspend the tubular insulating parts, and complete the workpiece fixation in the entire process of feeding, spraying and drying.

[0033] More specifically, the picking structure 4 is simple and compact in design and reliable in operation. It achieves precise locking, stable support and smooth unlocking through the first card holder 42, the stop 43 and the movable second card holder 44. It is stable in positioning and does not loosen or fall off during the entire process of guiding, grabbing, transporting and spraying. It can be reused repeatedly, taking into account both structural versatility and operational stability.

[0034] As a preferred embodiment, the suspension unit 45 further includes a main body base 451, two pairs of hanging arms 452, two pairs of shock-absorbing springs 453, and two pairs of cone caps 454. The main body base 451 is fixedly mounted on the bottom end of the mounting rod 41, and two pairs of flip grooves are equidistantly arranged on the side wall of the main body base 451. One end of each pair of hanging arms 452 is movably embedded in the bottom end of the flip groove. Both pairs of hanging arms 452 are concave rods. The two ends of each pair of shock-absorbing springs 453 are movably connected to the flip groove and one end of each hanging arm 452, and the shock-absorbing springs 453 are inclined and can be fastened through the hanging arms 452. The two pairs of cone caps 454 are fixedly mounted on the other end of each hanging arm 452. The main body base 451 serves as the mounting base for the suspension unit 45 and is fixed to the bottom end of the mounting rod 41. Rod 41 moves synchronously; one end of each of the two pairs of hanging arms 452 is movably embedded in the flipping groove of the main body 451. During the insertion of the insulating component stack, the hanging arms 452 can be elastically flipped into the flipping groove by the pressure of the insulating component; two pairs of inclined shock-absorbing springs 453 provide elastic support for the hanging arms 452, so that the hanging arms 452 remain open without external force, so that the tubular insulating component is stably hung on the hanging arms 452; the concave rod structure of the hanging arms 452 can be adapted to the inner wall shape of the tubular insulating component, and the cone cap 454 is fixed at the end of the hanging arm 452, which serves as a guide and facilitates suspension, so that the hanging arms 452 can be smoothly inserted into the insulating component stack and avoid scratching the insulating component; the shock-absorbing springs 453 also buffer the vibration and impact during the feeding, conveying and spraying process to prevent the insulating component from falling off or deforming.

[0035] More specifically, the flexible and reversible hanging arm 452 design enables automatic insertion into the stack of insulating parts for rapid loading. The suspension is firm and the guidance is smooth, effectively preventing scratches, deformation and detachment of the insulating parts. It combines flexible protection with stable load-bearing capacity, and facilitates subsequent unloading, adapting to the automated suspension processing needs of batch tubular insulating parts.

[0036] As a preferred embodiment, the spraying structure 5 further includes a conveying unit 51, a spraying unit 52, a drying chamber body 53, and a material unloading unit 54; the conveying unit 51 is fixedly installed on the upper right wall of the base 1, the spraying unit 52 is fixedly installed on the upper wall of the base 1 and is located on the rear side of the left end of the conveying unit 51, the drying chamber body 53 is fixedly installed on the upper right wall of the base 1 and the right end of the conveying unit 51 can penetrate the rear side wall and the left side wall of the drying chamber body 53, and the material unloading unit 54 is fixedly installed on the front side of the middle part of the conveying unit 51.

[0037] More specifically, the conveying unit 51 includes a second conveyor frame 511, a first motor 512, a pair of drive shafts 513, a second conveyor belt assembly 514, and several second brackets 515. One end of the second conveyor frame 511 is fixedly mounted on the upper wall of the base 1 and located to the right of the first electric slide rail 21. The first motor 512 is fixedly mounted on the upper wall of one end of the second conveyor frame 511. One end of each pair of drive shafts 513 is movably mounted on the second conveyor frame 511, and one end of each drive shaft 513 is connected to the drive end of the first motor 512. The second conveyor belt assembly 514 is disposed between the pair of drive shafts 513 and is supported and rotated by the drive shafts 513. The several second brackets 515 are all H-shaped structures, and are equidistantly disposed on the belt body of the second conveyor belt assembly 514, and move reciprocally through the second conveyor belt assembly 514. The distance between the two ends matches the diameter of the mounting rod 41; the second conveyor frame 511 is fixedly installed on the base 1 to provide stable support for the conveying unit 51; the first motor 512 starts and outputs power, driving the transmission shaft 513 connected to it to rotate, and the transmission shaft 513 further drives the second conveyor belt assembly 514 to operate continuously; several H-shaped second brackets 515 are equidistantly fixed on the belt of the second conveyor belt assembly 514, and move back and forth synchronously with the belt; the distance between the two ends of the second bracket 515 matches the diameter of the mounting rod 41 of the pickup structure 4, which can provide stable support and limit the mounting rod 41; the delivery structure 2 places the pickup structure 4 loaded with insulating parts on the second bracket 515, and the second conveyor belt assembly 514 drives the pickup structure 4 to pass through the spraying station, drying station and unloading station in sequence to achieve continuous and rhythmic conveying and ensure stable connection of each process.

[0038] More specifically, through the cyclic conveying, equidistant positioning, and stable support of the picking structure 4, the H-shaped second bracket 515 and the mounting rod 41 are precisely matched, and the conveying process does not shake, deviate, or fall off. It can cooperate with the spraying, drying, and unloading processes to achieve continuous automated operation, thereby improving the overall production line efficiency and operational stability.

[0039] As a preferred embodiment, the spraying unit 52 further includes a spraying box 521, several spray nozzles 522, a hydraulic cylinder body 523, a third conveyor frame 524, and a third conveyor belt assembly 525. The spraying box 521 is fixedly mounted on the upper wall of the base 1, and the spraying box 521 corresponds to the left end of the second conveyor belt assembly 514. The front side wall of the spraying box 521 has a moving groove 6 corresponding to the second bracket 515, and the left and right side walls of the spraying box 521 have symmetrically arranged input ports. Several spray nozzles 522 The nozzles 522 and 523 are respectively movably mounted on the inner wall of the spray box 521, and can be tilted relative to each other. One end of the hydraulic cylinder body 523 is fixedly mounted on the front wall of the spray box 521 and located below the moving trough 6. One end of the third conveyor frame 524 movably passes through the front wall of the spray box 521, and one end of the third conveyor frame 524 is connected to the telescopic end of the hydraulic cylinder body 523. The third conveyor belt assembly 525 is movably mounted on the other end of the third conveyor frame 524 and is located at the nozzle 522. Above, the belt body of the third conveyor belt assembly 525 is triangular; it is fixed to the base 1 through the spray box 521 to form a closed spraying station. The second conveyor belt assembly 514 drives the second bracket 515 and the pickup structure 4 to enter through the input ports on both sides of the spray box 521. The second bracket 515 passes smoothly along the moving groove 6. The hydraulic cylinder body 523 starts and pushes the third conveyor frame 524 to extend into the spray box 521, so that the third conveyor belt assembly 525 approaches the mounting rod 41 of the pickup structure 4 and forms a close contact. The triangular belt body of the third conveyor belt assembly 525 is stably engaged with the mounting rod 41, driving the mounting rod 41 and the suspended insulating parts to rotate at a uniform speed. The spray nozzle 522 is arranged obliquely along the circumference of the insulating parts, and sprays the outer wall of the insulating parts in all directions during the rotation of the insulating parts to ensure uniform coating coverage. After the spraying is completed, the hydraulic cylinder body 523 retracts, driving the third conveyor frame 524 and the third conveyor belt assembly 525 to reset. The pickup structure 4 is conveyed forward with the second conveyor belt assembly 514 to the next station.

[0040] More specifically, the hydraulic cylinder body 523 drives the automatic engagement and disengagement of the third conveyor belt assembly 525 and the mounting rod 41. In conjunction with one side of the triangular belt, it reliably drives the insulation component to rotate. With the tiltable nozzle 522, it achieves uniform spraying without dead angles, effectively avoiding missed coating, drips and uneven thickness. It has high spraying accuracy, good coating consistency, stable overall operation and high degree of automation.

[0041] As a preferred embodiment, the unloading unit 54 further includes a fourth electric slide rail 541, an unloading rack 542, and a camera 543. The fourth electric slide rail 541 is fixedly mounted on the upper wall of the base 1 and located behind the second conveyor frame 511. One end of the unloading rack 542 is fixedly mounted on the fourth electric slide rail 541 and moves up and down via the fourth electric slide rail 541. The other end of the unloading rack 542 is a rectangular frame, and the unloading rack 542 can be fitted onto the main body base 451. The camera 543 is fixedly mounted in the middle of the unloading rack 542, and the camera 543 corresponds to the second conveyor belt assembly 514. The camera 543 provides real-time monitoring. The system acquires position images of the second conveyor belt assembly 514 and the pickup structure 4, performs precise visual positioning of the main body seat 451 of the suspension unit 45, and feeds the position signal back to the control system. When the pickup structure 4, which has completed spraying and drying, moves to the unloading station with the conveyor unit 51, the fourth electric slide rail 541 drives the unloading rack 542 to move downward, so that the rectangular frame at the end of the unloading rack 542 is fitted onto the outside of the main body seat 451 of the pickup structure 4. The unloading rack 542 continues to move upward, and the rectangular frame forms an upward thrust on the end of the insulating component, while driving the hanging arm 452 to flip, forcing the insulating component to detach from the hanging arm 452, thus completing the automatic unloading.

[0042] More specifically, by combining the visual positioning of camera 543 with the drive of the fourth electric slide rail 541, precise positioning, automatic unloading, and stable reset are achieved. The unloading action is gentle and does not damage the coating and insulation components. Automated unloading can be completed without manual intervention, which greatly improves the continuity of the production line and production efficiency. It is reliable in operation and has a low failure rate.

[0043] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0044] First, multiple pickup structures 4 are placed on the guide structure 3 in advance. The first conveyor belt assembly 33 operates, causing the mounting rod 41 to fit against the belt and move directionally between the first conveyor frame 32 and the first bracket 35, so as to realize the orderly arrangement and stable conveying of the pickup structures 4 and provide a unified docking station for feeding. The delivery structure 2 achieves three-axis linkage through the left and right displacement of the first electric slide rail 21, the lifting and lowering of the second electric slide rail 22, and the forward and backward feeding of the third electric slide rail 23. It drives the locking unit 25 to move above the pickup structure 4 with the mounting frame 24 and then moves downward. The locking seat 251 is fitted onto the first locking seat 42. The first locking seat 42 squeezes the locking rod 252, causing its compression spring 254 to retract, and the locking rod is limited by the baffle 253. After passing the locking rod 252, the spring 254 returns to its original position, and the locking rod 252 locks the first locking seat 42 to complete the locking. Then, the delivery structure 2 drives the pickup structure 4 to move above the collection bucket 26, controls the suspension unit 45 to extend into the stack of insulating parts, and the hanging arm 452 is squeezed and elastically flipped into the flipping groove. The cone cap 454 assists in the insertion, and the shock-absorbing spring 453 returns to its original position, causing the hanging arm 452 to open. The tubular insulating parts are automatically hung on the hanging arm 452, completing the automatic feeding. After the material is loaded, the delivery structure 2 moves the pickup structure 4 to the conveying unit 51 of the spraying structure 5, that is, the mounting rod 41 is embedded into the second bracket 515. At this time, the second bracket 515 is locked between the two stops 43. The locking unit 25 can continue to descend and apply force, so that the locking rod 252 contacts the second bracket 44 and passes through the second bracket 44. Then it retracts and rises, driving the second bracket 44 to dock with the first bracket 42. With the application of force, it passes through the side wall of the second bracket 44 and the first bracket 42 to unlock and release, so that the mounting rod 41 falls into the H-shaped second bracket 515 for positioning. The first motor 512 on the second conveyor frame 511 drives the transmission shaft 513 to drive the second conveyor belt assembly 514 to rotate, driving multiple pickup structures 4 to move in a cycle and enter the spraying unit 52 and the drying box body 53 for processing in sequence. When entering the spraying box 521, the hydraulic cylinder body 523 pushes the third conveyor frame 524 and the third conveyor belt assembly 525 forward, and the triangularly arranged belt body fits against the mounting rod 41 and drives it to rotate at a uniform speed; the tiltable spray head 522 sprays the rotating insulating parts evenly in all directions to avoid missed coating and uneven thickness; the sprayed insulating parts enter the drying box body 53 with the conveyor unit 51 to complete drying and curing, and the pickup structure 4 enters the spraying box 521 with the second bracket 515 through the moving groove 6; After drying, the picking structure 4 moves to the unloading station, and the camera 543 of the unloading unit 54 performs visual positioning of the main body 451. The fourth electric slide rail 541 drives the unloading rack 542 to move upward, so that the rectangular frame is fitted onto the main body 451 and pushes the insulating part upward, so that the insulating part is separated from the hanging arm 452. At the same time, the hanging arm 452 is rotated to a certain extent to complete the automatic unloading. After unloading, the picking structure 4 can be picked up again by the delivery structure 2 to achieve recycling and reuse, so that the picking structure 4 does not need to be connected from the guide structure 3. Thus, the entire process of loading, spraying, drying and unloading of electrical connector insulating parts is automated.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating apparatus for insulating components of an electrical connector, characterized in that, Includes a base (1), the upper wall of the base (1) near the left end is provided with a delivery structure (2), the upper wall of the left end of the base (1) is provided with a guide structure (3), and the guide structure (3) is located behind the delivery structure (2). The guide structure (3) is detachably provided with a number of picking structures (4), and the picking structures (4) can be carried and transported by the delivery structure (2). The upper wall of the right end of the base (1) is provided with a spraying structure (5), and the spraying structure (5) corresponds to the guide structure (3). The spraying structure (5) can support the picking structures (4). Among them, the guiding structure (3) is used to arrange the moving pickup structure (4), the delivery structure (2) is used to transport the pickup structure (4), and the tubular insulating parts are suspended and picked up through the pickup structure (4). At the same time, the delivery structure (2) can place the pickup structure (4) on the spraying structure (5), and the spraying structure (5) sprays, dries and removes the suspended insulating parts.

2. The electrical connector insulation coating apparatus according to claim 1, characterized in that, The delivery structure (2) includes a first electric slide rail (21), a second electric slide rail (22), a third electric slide rail (23), a mounting bracket (24), a locking unit (25), and a collection bucket (26). The first electric slide rail (21) is fixedly mounted on the upper wall of the base (1) and close to the left end. The second electric slide rail (22) is vertically mounted on the first electric slide rail (21) and moves left and right through the first electric slide rail (21). The third electric slide rail (23) is mounted on the second electric slide rail (22) and moves up and down through the second electric slide rail (22). The mounting bracket (24) is fixedly mounted on the third electric slide rail (23) and moves back and forth through the third electric slide rail (23). The locking unit (25) is fixedly mounted on the mounting bracket (24). The collection bucket (26) is fixedly mounted on the upper wall of the base (1) and corresponds to the middle of the first electric slide rail (21).

3. The electrical connector insulation coating apparatus according to claim 2, characterized in that, The locking unit (25) includes a lock base (251), a pair of locking rods (252), a pair of baffles (253), and a pair of springs (254); The lock seat (251) is fixedly mounted on the mounting bracket (24). The lock seat (251) has a through hole in the middle. The lock seat (251) has convex telescopic grooves that communicate with the through hole at both ends near the bottom. A pair of lock rods (252) are symmetrically inserted into the telescopic grooves. The width of one end of the lock rod (252) is greater than the width of the other end. One end of each lock rod (252) is trapezoidal and the opposite sidewalls are inclined. A pair of baffles (253) are screwed to the other end of the lock rod (252) and the baffles (253) are attached to the sidewall of the lock seat (251). A pair of springs (254) are movably fitted in the middle of the lock rod (252) and the springs (254) can be compressed through one end of the lock rod (252).

4. The electrical connector insulation coating apparatus according to claim 3, characterized in that, The guiding structure (3) includes a first support (31), a first conveyor frame (32), a first conveyor belt assembly (33), a cross frame (34), and a first bracket (35). One end of the first bracket (31) is fixedly mounted on the upper left wall of the base (1) and located behind the first electric slide rail (21). The first conveyor frame (32) is concave and is fixedly mounted on the other end of the first bracket (31). The first conveyor belt assembly (33) is mounted on the first conveyor frame (32), and the width of the pulley in the first conveyor belt assembly (33) is greater than the width of the first conveyor frame (32). The span frame (34) is a portal frame. One end of the span frame (34) is fixedly mounted on the upper wall of the first conveyor frame (32). One end of the first bracket (35) is fixedly mounted on the other end of the span frame (34), and the upper wall of the first bracket (35) is on the same horizontal plane as the upper wall of the first conveyor frame (32). The first bracket (35) and the first conveyor frame (32) have a certain distance between them.

5. The electrical connector insulation coating apparatus according to claim 4, characterized in that, The pickup structure (4) includes a mounting rod (41), a first card holder (42), a pair of stops (43), a second card holder (44), and a suspension unit (45). One end of the mounting rod (41) can movably pass through the first bracket (35) and the first conveyor frame (32), and the mounting rod (41) is in contact with the belt body of the first conveyor belt assembly (33). The first card seat (42) is fixedly installed on the top of the mounting rod (41). The first card seat (42) has a frustoconical structure. A pair of stops (43) are respectively fixedly fitted on the mounting rod (41) and located below the first card seat (42). The pair of stops (43) are connected to the mounting rod. The rod (41) is assembled into an I-shaped structure. One of the stops (43) is attached to the upper wall of the first bracket (35). The second bracket (44) is movably fitted onto the top of the mounting rod (41). The second bracket (44) is located between the stop (43) and the first bracket (42). The upper and lower side walls of the second bracket (44) are inclined. The second bracket (44) has a symmetrical frustum structure. The suspension unit (45) is fixedly installed on the bottom end of the mounting rod (41).

6. The electrical connector insulation coating apparatus according to claim 5, characterized in that, The suspension unit (45) includes a main body (451), two pairs of hanging arms (452), two pairs of shock-absorbing springs (453), and two pairs of cone caps (454). The main body (451) is fixedly installed at the bottom of the mounting rod (41), and two pairs of flip grooves are provided at equal intervals on the side wall of the main body (451). One end of each pair of hanging arms (452) is movably embedded in the bottom of the flip groove. Both pairs of hanging arms (452) are concave rods. The two ends of each pair of shock-absorbing springs (453) are movably connected to the flip groove and one end of the hanging arm (452), and the shock-absorbing springs (453) are inclined. The shock-absorbing springs (453) can be fastened by the hanging arm (452). The two pairs of cone caps (454) are fixedly installed on the other end of the hanging arm (452).

7. The electrical connector insulation coating apparatus according to claim 6, characterized in that, The spraying structure (5) includes a conveying unit (51), a spraying unit (52), a drying oven body (53), and a material unloading unit (54). The conveying unit (51) includes a fixed installation on the upper right wall of the base (1), a spraying unit (52) fixedly installed on the upper wall of the base (1), and the spraying unit (52) is located on the rear side of the left end of the conveying unit (51), the drying chamber body (53) is fixedly installed on the upper right wall of the base (1), and the right end of the conveying unit (51) can penetrate the rear side wall and the left side wall of the drying chamber body (53), and the unloading unit (54) is fixedly installed on the front side of the middle part of the conveying unit (51).

8. The electrical connector insulation coating apparatus according to claim 7, characterized in that, The conveying unit (51) includes a second conveyor frame (511), a first motor (512), a pair of drive shafts (513), a second conveyor belt assembly (514), and several second brackets (515). One end of the second conveyor frame (511) is fixedly mounted on the upper wall of the base (1) and located to the right of the first electric slide rail (21). The first motor (512) is fixedly mounted on the upper wall of one end of the second conveyor frame (511). One end of each pair of drive shafts (513) is movably mounted on the second conveyor frame (511), and one end of the drive shafts (513) is connected to the drive end of the first motor (512). The second conveyor belt assembly (514) is located between the pair of drive shafts (513) and is supported and rotated by the drive shafts (513). Several second brackets (515) are all H-shaped structures. Several second brackets (515) are equidistantly mounted on the belt body in the second conveyor belt assembly (514) and move back and forth through the second conveyor belt assembly (514). The distance between the two ends of the second bracket (515) matches the diameter of the mounting rod (41).

9. The electrical connector insulation coating apparatus according to claim 8, characterized in that, The spraying unit (52) includes a spraying box (521), several spray nozzles (522), a hydraulic cylinder body (523), a third conveyor frame (524), and a third conveyor belt assembly (525); The spray box (521) is fixedly mounted on the upper wall of the base (1), and the spray box (521) corresponds to the left end of the second conveyor belt assembly (514). The front side wall of the spray box (521) is provided with a moving groove (6) corresponding to the second bracket (515), and the left and right side walls of the spray box (521) are symmetrically provided with input ports. Several nozzles (522) are respectively movably mounted on the inner side wall of the spray box (521), and the nozzles (522) can be tilted relative to each other. One end of the hydraulic cylinder body (523) is fixed. The third conveyor frame (524) is fixedly installed on the front side wall of the spray box (521) and located below the moving trough (6). One end of the third conveyor frame (524) is movably inserted through the front side wall of the spray box (521), and one end of the third conveyor frame (524) is connected to the telescopic end of the hydraulic cylinder body (523). The third conveyor belt assembly (525) is movably installed on the other end of the third conveyor frame (524), and the third conveyor belt assembly (525) is located above the nozzle (522). The belt body in the third conveyor belt assembly (525) is triangular.

10. The electrical connector insulation coating apparatus according to claim 9, characterized in that, The unloading unit (54) includes a fourth electric slide rail (541), an unloading rack (542), and a camera (543); The fourth electric slide rail (541) is fixedly installed on the upper wall of the base (1) and located behind the second conveyor frame (511). One end of the unloading frame (542) is fixedly installed on the fourth electric slide rail (541) and moves up and down through the fourth electric slide rail (541). The other end of the unloading frame (542) is a rectangular frame and the unloading frame (542) can be fitted onto the main body base (451). The camera (543) is fixedly installed in the middle of the unloading frame (542) and the camera (543) corresponds to the second conveyor belt assembly (514).

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