An assembling machine for valve production and processing

Abstract

The application discloses a valve production and processing assembling machine and relates to the technical field of valve assembling. The valve production and processing assembling machine comprises a machine table and a feeding seat arranged on one side of the machine table. The top of the feeding seat is provided with a first vibrating feeding tray and a second vibrating feeding tray. The discharging opening of the first vibrating feeding tray is provided with a first conveying guide rail, and the discharging opening of the second vibrating feeding tray is provided with a second conveying guide rail. The application adopts the integrated collaborative structure design of double vibrating feeding trays for independent time-sharing feeding, first feeder staggered gravity guiding pre-assembly, linkage intermittent blocking unloading, second feeder self-weight posture correction coaxial alignment and up-down bidirectional synchronous stamping and pressing on the overall structure of the valve assembling machine. The application overcomes the problems of high manual dependence, scattered process connection, disordered material feeding, asynchronous unloading rhythm and assembly station, eccentric accessory alignment, different insertion depth and uneven assembly gap in the traditional valve assembling process.

Description

Technical Field

[0001] This invention relates to the field of valve assembly technology, specifically to an assembly machine for valve production and processing. Background Technology

[0002] Currently, in the precision assembly and production of small and medium-sized valves, the core components mainly consist of small precision parts such as sealing cups, pre-assembled parts, and valve chambers. These parts are small in size, require high assembly precision, and have stringent standards for coaxiality and sealing. Existing traditional valve assembly processes mostly rely on manual, single-machine, step-by-step assembly. A few semi-automatic assembly equipment have relatively simple structural designs and poor overall automation and coordination capabilities, making it difficult to form standardized, continuous assembly line operations. In actual production, existing equipment often uses a single, continuous vibration feeding method, which cannot achieve independent, orderly, and time-sharing feeding of multiple parts. The material conveying posture is disordered, the feeding is chaotic, and the unloading rhythm is independent of the rotation rhythm of the assembly station and cannot be synchronized. This easily leads to continuous free feeding, material falling into empty stations, material stacking, and overlapping unloading, frequently causing production failures such as jamming, blockage, empty loading, and missed loading, seriously affecting production continuity. Summary of the Invention

[0003] The purpose of this invention is to solve the problems of existing small and medium-sized valve assembly equipment, which cannot achieve independent feeding of multiple parts at different times, the feeding and unloading rhythm cannot be synchronized with the assembly station, the material posture is messy, and it is easy to cause jamming, missing parts, blockage, poor production continuity and insufficient assembly accuracy. The invention provides an assembly machine for valve production and processing.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an assembly machine for valve production and processing, comprising: a machine base and a feeding seat disposed on one side of the machine base, wherein a first vibrating material plate and a second vibrating material plate are mounted on the top of the feeding seat, a first conveying guide rail is mounted at the outlet of the first vibrating material plate, and a second conveying guide rail is mounted at the outlet of the second vibrating material plate, the inner side of the first conveying guide rail is used to convey pre-assembled parts discharged from the inner side of the first vibrating material plate, and the inner side of the second conveying guide rail is used to convey valve chambers discharged from the inner side of the second vibrating material plate; and a stamping seat, wherein the stamping seat is fixedly connected to one side of the machine base. The front end of the stamping base is respectively equipped with a first stamping head and a second stamping head; a first feeder is located at the top of the machine base and docked at the discharge port of the first conveying guide rail; a second feeder is located at the top of the machine base and at the discharge port of the second conveying guide rail; a conveying rail is fixedly installed on the top of the machine base, and the first stamping head and the second stamping head are respectively located at the upper and lower ends of the conveying rail to form a compression assembly of the assembled pre-assembled parts and the valve chamber. The conveying rail is provided with multiple sections and passes through the first feeder and the second feeder in sequence to form the final feeding.

[0005] As a further embodiment of the present invention: the first feeder includes a first rotating shaft rotatably connected to the top of the machine base, a first feeding frame fixedly connected to the outer wall of the first rotating shaft, a feeding port fixedly connected to the top of the machine base, a sealing cup being conveyed inside the feeding port, and a plurality of annularly distributed first grooves provided on the outer wall of the first feeding frame for circumferentially distributing the sealing cups conveyed from the inner side of the feeding port and discharging the assembled sealing cups and pre-assembled parts to the conveying track, so as to be conveyed to the assembly valve chamber of the second feeder via the conveying track.

[0006] As a further embodiment of the present invention: the first feeder further includes a second annular bracket fixedly connected to the top of the machine base and located outside the first feeding frame. The second annular bracket fits against the top of the sealing cup and avoids the interface at the top of the sealing cup. An arc-shaped guide plate is fixedly connected to the top of the second annular bracket. An arc-shaped limiting groove is provided on the inner side of the arc-shaped guide plate. A first guide ring and a first feeding disc are fixedly connected to the outer wall of the first rotating shaft.

[0007] As a further embodiment of the present invention: the top of the first feeding tray is provided with a plurality of guide grooves and discharge grooves, and the discharge grooves penetrate the guide grooves. The discharge grooves match the arc-shaped limiting grooves. The arc-shaped limiting grooves and the discharge grooves are aligned and arranged below the discharge port of the first conveying guide rail. A plurality of second conical grooves are fixedly connected to the inner side of the first guide ring, and the second conical grooves are correspondingly arranged with the first groove.

[0008] As a further embodiment of the present invention: the arc-shaped guide plate covers most of the second conical groove, and the first conveying guide rail discharge port is not completely aligned with the second conical groove and is in a misaligned state, so that when the pre-assembled part falls through the arc-shaped limiting groove, one end contacts the first guide ring, and the other end is located above the second conical groove, so that it is subjected to downward center of gravity and falls vertically into the sealing cup located below. Through the conical hole opened on the inner side of the sealing cup, a guide is formed so that its end is inserted from the inner side of the sealing cup and its tail end is retained on the inner side of the sealing cup.

[0009] As a further embodiment of the present invention: an intermittent barrier for auxiliary intermittent feeding is provided at the end of the first conveying guide rail. The intermittent barrier includes a fixed shell fixedly connected to the outer wall of the first conveying guide rail. A connecting frame is fixedly connected to the inner side of the fixed shell. A power shaft is rotatably connected to the inner side of the connecting frame. One end of the power shaft extends through to the outside of the connecting frame and is fixedly connected to a driven interlocking helical gear. An active interlocking helical gear that meshes with the driven interlocking helical gear is fixedly connected to the end of the first rotating shaft. A cam is fixedly connected to the outer wall of the power shaft. A connecting plate is fixedly connected to the inner side of the connecting frame. A rotating shaft is rotatably connected to the inner side of the connecting plate. A locking block is fixedly connected to the end of the rotating shaft. The locking block can rotate to abut against the inner conveying groove of the first conveying guide rail, thereby limiting the pre-assembled part conveyed by the first conveying guide rail. A torsion spring is installed between the locking block and the connecting plate. The cam is located above the locking block.

[0010] As a further embodiment of the present invention: the second feeder includes a second rotating shaft rotatably connected to the top of the machine base, a second feeding frame and a second guide ring fixedly connected to the outer wall of the second rotating shaft, and the second guide ring is located above the second feeding frame. The outer wall of the second guide ring is provided with annularly distributed second grooves for receiving the assembled sealing cup and the pre-assembled parts conveyed from the conveying track. The top of the machine base is fixedly connected to a first annular bracket below the second guide ring, and the first annular bracket fits against the top of the sealing cup, avoiding the interface at the top of the sealing cup. The top of the second guide ring is provided with a plurality of first conical grooves penetrating the inner side, and the first conical grooves are correspondingly arranged with the second grooves.

[0011] As a further embodiment of the present invention: the second feeder further includes a second feeding disc fixedly connected to the top of the second guide ring. The top of the second feeding disc is provided with a plurality of guide grooves, and the guide grooves are composed of inclined surfaces and through grooves. A portion of the through groove communicates with the first conical groove and the other portion contacts the second guide ring, so that after the valve chamber discharged from the second conveying guide rail falls into the inside of the through groove, one end of the valve chamber falls on the second guide ring and the other end remains above the first conical groove. Thus, after one end of the valve chamber touches the second guide ring, the other end is guided downward through the first conical groove and falls into the inside of the sealing cup for assembly.

[0012] Compared with the prior art, the beneficial effects of the present invention are: This invention adopts an integrated collaborative structure design with independent time-sharing material feeding of dual vibrating trays, pre-assembly with gravity guidance of the first feeder, intermittent blocking material feeding with linkage, coaxial alignment with self-weight posture correction of the second feeder, and synchronous upper and lower bidirectional stamping and pressing. It completely replaces the traditional manual step-by-step assembly and simple semi-automatic equipment operation mode, effectively overcoming many technical defects of traditional valve assembly process such as high dependence on manual labor, scattered process connection, disordered material feeding, asynchronous feeding rhythm and assembly station, and eccentric alignment of parts, and greatly improving the integrity and collaboration of valve assembly process.

[0013] This invention utilizes a mechanical intermittent blocking structure that uses a first rotating shaft to drive an active interlocking helical gear and a driven interlocking helical gear to periodically control the opening and closing of a cam block. This eliminates the need for an additional independent drive source, enabling precise intermittent feeding of pre-assembled parts at each workstation. This prevents abnormal situations such as empty feeding, stacking, and jamming, ensuring a stable and controllable rhythm in the pre-assembly process. Simultaneously, relying on the staggered gravity guiding structure formed by the first feeding tray, the arc-shaped guide plate, and the second conical groove, it achieves automatic vertical and precise insertion of pre-assembled parts and sealing cups, effectively improving the first-time pre-assembly qualification rate. Furthermore, in conjunction with the layered guiding structure of the second feeder, the staggered support and limiting of the guide groove, and the coaxial guiding characteristics of the first conical groove, it can automatically correct the valve chamber conveying posture, achieving high-precision coaxial alignment and assembly of the valve chamber and the pre-assembled workpiece. This solves the assembly problems of offset, undercut, and poor fit during secondary assembly.

[0014] This invention utilizes a third driving structure within the stamping seat to drive the first and second stamping heads in a bidirectional, uniform extrusion molding process. This results in a tighter and more secure connection between the sealing cup, pre-assembled parts, and valve chamber, significantly improving assembly consistency and structural sealing. Simultaneously, the entire equipment relies on pure mechanical linkage to achieve fully automated and continuous operation of feeding, blocking, guiding, alignment, pre-assembly, conveying, and stamping. The actions of each station are highly matched, and the equipment operates with strong stability. This significantly reduces the cost of manual intervention and equipment failure rate, greatly improving the production efficiency and yield of precision valve assembly. It effectively meets the needs of large-scale, high-precision, and standardized automated production of small and medium-sized valves. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the top structure of the machine tool according to the present invention; Figure 3 This is an exploded view of the first feeder of the present invention; Figure 4 This is a schematic diagram of the second feeder structure of the present invention; Figure 5 This is a schematic diagram of the structure of the first and second stamping heads of the present invention; Figure 6This is a cross-sectional view of the first annular card holder of the present invention; Figure 7 This is a schematic diagram of the stamping process of the first and second stamping heads of the present invention; Figure 8 This is a schematic diagram of the first feeder of the present invention; Figure 9 This is a schematic diagram showing the separation of the first feeding tray and the first guide ring of the present invention; Figure 10 This is an exploded view of the sealing cup, valve chamber, and pre-assembled parts of the present invention; Figure 11 This is an exploded view of the intermittent barrier of the present invention.

[0016] In the diagram: 1. Machine base; 2. Feeding seat; 3. First vibrating feeder; 4. Second vibrating feeder; 5. First conveyor guide rail; 6. Second conveyor guide rail; 7. First punch head; 8. First feeder; 9. Second feeder; 10. Conveying track; 11. Fixed housing; 12. Punching seat; 13. First guide ring; 14. Second guide ring; 15. First rotating shaft; 16. Feeding port; 17. First feeding frame; 18. Arc-shaped guide plate; 19. Sealing cup; 20. Second rotating shaft; 21. 21. Guide chute; 22. Valve chamber; 23. Second punch head; 24. First annular seat; 25. First conical groove; 26. Pre-assembled part; 27. Guide groove; 28. Discharge chute; 29. ​​Second conical groove; 30. Arc-shaped limiting groove; 31. Connecting frame; 32. Active interlocking helical gear; 33. Locking block; 34. Power shaft; 35. Cam; 36. Driven interlocking helical gear; 37. Connecting plate; 38. Rotary shaft; 39. Torsion spring; 40. Second annular seat; 41. Second feeding rack. Detailed Implementation

[0017] 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.

[0018] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0019] In traditional valve assembly processes, most operations rely on manual, single-machine, step-by-step assembly. Some semi-automatic assembly equipment suffers from problems such as simplistic structural design, poor material alignment accuracy, component misalignment, feeding jams, and disordered material posture. This is particularly problematic when assembling small, precision components like the valve cup 19, pre-assembled parts 26, and valve chamber 22, where defects such as component misalignment, inconsistent insertion depth, material jamming, and excessive assembly gaps are easily encountered. This not only significantly reduces the valve assembly yield but also results in disjointed assembly processes, low automation, and limited production efficiency, making it difficult to meet the processing demands of large-scale, high-precision valve production. To address these shortcomings, this embodiment provides an assembly machine for valve production, capable of automatic alignment, precise assembly, and continuous feeding of multiple valve components, effectively improving assembly accuracy and production efficiency. The specific structure, working principle, and technical effects are as follows: Please see Figures 1 to 11This embodiment provides an assembly machine for valve manufacturing and processing, including a machine base 1 and a feeding seat 2 fixedly installed on one side of the machine base 1. A first vibrating material plate 3 and a second vibrating material plate 4 are fixedly installed on the top of the feeding seat 2. The two material plates are independently fed, which can realize the synchronous and orderly feeding of two different parts. The discharge port of the first vibrating material plate 3 is connected to a first conveying guide rail 5. The inner side of the first conveying guide rail 5 is used for directional and orderly conveying of the pre-assembled parts 26 discharged from the inside of the first vibrating material plate 3. The discharge port of the second vibrating material plate 4 is fixedly installed with a second conveying guide rail 6. The inner side of the second conveying guide rail 6 is used for directional conveying of the valve chamber 22 discharged from the inside of the second vibrating material plate 4. Through the structure of vibrating material plates and dedicated conveying guide rails, the pre-assembled parts 26 and valve chambers 22 can be automatically sorted and continuously fed, eliminating the disorder of manual feeding.

[0020] One end of the machine base 1 is fixedly connected to a stamping seat 12. The front end of the stamping seat 12 is fixedly installed with a first stamping head 7 and a second stamping head 23 arranged vertically, providing stable stamping power for the extrusion assembly of valve accessories. The top of the machine base 1 is sequentially equipped with a first feeder, a second feeder, and a conveying track 10. The first feeder is connected to the discharge port of the first conveying guide rail 5, mainly to complete the pre-assembly of the pre-assembled parts 26 and the sealing cup 19. The second feeder is connected to the discharge port of the second conveying guide rail 6, and is used to complete the secondary assembly of the pre-assembled finished product and the valve chamber 22. The conveying track 10 is fixedly installed on the top of the machine base 1 and is arranged in multiple sections, sequentially passing through the first feeder and the second feeder station to form a continuous feeding channel. At the same time, the first stamping head 7 and the second stamping head 23 are respectively arranged at the upper and lower ends of the conveying track 10, which can form a precise extrusion assembly of the pre-assembled parts 26, the sealing cup 19, and the valve chamber 22 assembly, completing the integrated assembly of the valve core components.

[0021] The first feeder includes a first rotating shaft 15 rotatably connected to the top of the machine base 1. A first feeding frame 17 is fixedly sleeved on the outer wall of the first rotating shaft 15. A feeding port 16 is fixedly installed on the top of the machine base 1. The feeding port 16 can realize continuous and directional feeding of the sealing cups 19, providing material support for the pre-assembly process. The outer wall of the first feeding frame 17 is evenly provided with multiple first grooves in a ring, which can perform circumferential limiting and interval conveying of the sealing cups 19 conveyed from the feeding port 16, so that each sealing cup 19 can be independently positioned, avoiding material stacking and displacement. At the same time, the sealing cups 19 that have completed the insertion and assembly of the pre-assembled parts 26 are accurately conveyed to the conveying track 10, and smoothly conveyed to the second feeder station through the conveying track 10, waiting to be assembled with the valve chamber 22.

[0022] The first feeder also includes a second annular bracket 40 fixedly installed on the top of the machine base 1 and covering the outside of the first feeding frame 17. The second annular bracket 40 fits and limits the top of the sealing cup 19, and precisely avoids the docking installation port on the top of the sealing cup 19. This effectively limits the vertical and horizontal deviation of the sealing cup 19 during the conveying process, ensuring the stability of the conveying posture of the sealing cup 19, and does not interfere with the subsequent insertion and assembly operation of the pre-assembled parts 26. An arc-shaped guide plate 18 is fixedly connected to the top of the second annular bracket 40. An arc-shaped limiting groove 30 is opened on the inner side of the arc-shaped guide plate 18, which can limit the trajectory and guide the falling pre-assembled parts 26.

[0023] The outer wall of the first rotating shaft 15 is also fixedly fitted with a first guide ring 13 and a first feeding disc 8. The top of the first feeding disc 8 is evenly provided with multiple interconnected guide grooves 27 and discharge grooves 28, and the discharge grooves 28 vertically penetrate the guide grooves 27. The discharge grooves 28 and the arc-shaped limiting grooves 30 are precisely matched and aligned vertically, and are positioned directly below the discharge port of the first conveying guide rail 5 to ensure that the pre-assembled part 26 can accurately fall into the limiting structure along the conveying guide rail. The inner side of the first guide ring 13 is fixedly provided with multiple second conical grooves 29, and the second conical grooves 29 are arranged one-to-one with the first grooves to achieve precise alignment of the sealing cup 19 and the pre-assembled part 26.

[0024] During assembly, the arc-shaped guide plate 18 shields most of the area of ​​the second conical groove 29. Simultaneously, the discharge port of the first conveying guide rail 5 and the second conical groove 29 are staggered, not perfectly aligned. This design alters the free-fall posture of the pre-assembled part 26. As the pre-assembled part 26 is discharged from the first conveying guide rail 5 and falls through the arc-shaped limiting groove 30, one end of the pre-assembled part 26 is supported by the end face of the first guide ring 13, while the other end is suspended above the second conical groove 29. Under its own weight, it falls vertically and precisely inserts into the sealing cup 19 positioned in the first groove below. With the pre-set tapered hole guide structure on the inner side of the sealing cup 19, the pre-assembled part 26 can be self-aligned and inserted, so that the end of the pre-assembled part 26 can be stably inserted from the inside of the sealing cup 19, and the tail end can be accurately retained inside the sealing cup 19, thus completing the precise pre-assembly of the pre-assembled part 26 and the sealing cup 19, effectively avoiding assembly defects such as insertion misalignment, insertion too deep or too shallow, and misalignment of parts.

[0025] The bottom of the machine base 1 is fixedly equipped with a first drive structure for driving the first rotating shaft 15 to rotate intermittently. The first drive structure is preferably a servo motor, which has the advantages of precise and controllable speed and stable start and stop. It can drive the first rotating shaft 15 to rotate at a uniform speed in an intermittent circular motion, realize the intermittent and continuous rotational feeding of the sealing cup 19, and ensure the orderly connection of each work station process.

[0026] The complete workflow and corresponding technical effects of this assembly machine are as follows: First, the sealing cup 19 is conveyed to the inside of the feeding port 16 through a dedicated conveying structure. The first drive structure drives the first rotating shaft 15 to rotate intermittently, driving the first feeding frame 17 to operate synchronously. The sealing cup 19 is evenly distributed and intermittently conveyed through the first groove, realizing orderly feeding and precise positioning of the sealing cup 19, and preventing material stacking and jamming. At the same time, the first vibrating material plate 3 and the second vibrating material plate 4 respectively complete the automatic sorting and feeding of the pre-assembled parts 26 and the valve chamber 22, which are then directionally conveyed to the corresponding assembly stations through the first conveying guide rail 5 and the second conveying guide rail 6, respectively.

[0027] During the descent of the pre-assembled part 26, the trajectory limiting of the arc-shaped limiting groove 30, the posture correction of the first guide ring 13, and the structural design of the staggered feeding forcefully correct the descent angle of the pre-assembled part 26, ensuring that it is vertically and accurately inserted into the sealing cup 19. Combined with the guiding and adapting function of the conical hole in the sealing cup 19, high-precision pre-assembly is completed, completely solving the problems of misaligned insertion and poor assembly accuracy of traditional equipment parts. The pre-assembled sealing cup 19 and pre-assembled part 26 assembly is smoothly fed into the conveying track 10 under the rotational conveying action of the first rotating shaft 15, and then conveyed to the second feeder station via the conveying track 10.

[0028] Subsequently, the second feeder precisely aligns the valve chamber 22, which is conveyed by the second conveying guide rail 6, to the pre-assembled assembly. Then, through the bidirectional extrusion action of the first stamping head 7 and the second stamping head 23, the overall extrusion assembly of the valve chamber 22, the sealing cup 19, and the pre-assembled component 26 is completed, realizing the fully automated assembly of the valve core components.

[0029] A third drive structure is fixedly installed on the inner side of the stamping base 12. The third drive structure is preferably a hydraulic cylinder, which has the characteristics of stable driving force, controllable stroke, and strong pressure resistance. It can stably drive the first stamping head 7 and the second stamping head 23 to perform precise telescopic reciprocating motion. The first stamping head 7 and the second stamping head 23 are installed symmetrically at the front end of the stamping base 12, and respectively correspond to the upper and lower ends of the conveyor rail 10 on the top of the machine base 1, accurately corresponding to the valve assembly workpiece conveyed into place inside the conveyor rail 10.

[0030] When the conveyor track 10 transports the pre-assembled sealing cup 19, pre-assembled component 26, and aligned valve chamber 22 to the stamping station between the first stamping head 7 and the second stamping head 23, the equipment pauses feeding to achieve precise workpiece positioning. At this time, the third drive structure inside the stamping seat 12 is activated, and the third drive structure independently drives the first stamping head 7 and the second stamping head 23 to synchronously extend and retract towards the assembly joint surface of the valve chamber 22 and the pre-assembled component 26, applying pressure and extrusion. Through bidirectional synchronous extrusion, pressure is evenly applied to the assembly joint position of the valve chamber 22, the pre-assembled component 26, and the sealing cup 19, so that the pre-assembled component 26, the sealing cup 19, and the valve chamber 22 are tightly fitted and pressed and fixed, completely completing the integrated locking assembly process of the three components.

[0031] Existing valve pre-assembly feeding structures generally suffer from technical defects. Traditional vibrating conveyor rails mostly operate in a continuous free-feeding mode, lacking a matching intermittent blocking and limiting structure. The feeding rhythm relies entirely on the vibration frequency, making it impossible to precisely match the rotation position of the lower feeding disc. When the second conical groove 29 of the first feeding disc 8 does not rotate to the corresponding position of the feeding port of the first conveying guide rail 5, the pre-assembly 26 will continue to slip, easily leading to problems such as empty feeding, material accumulation, misaligned and suspended pre-assembly 26, and multiple pieces falling together. This not only causes parts to jam and block, but also prevents the pre-assembly 26 from accurately aligning with the sealing cup 19 for insertion, resulting in defects such as missing parts, incorrect parts, and skewed assembly, seriously affecting the overall assembly accuracy and production continuity. To solve the above-mentioned shortcomings of existing technology, this equipment adds an intermittent blocking device at the end of the first conveying guide rail 5 to assist in intermittent feeding. By linking with the overall feeding structure, precise intermittent feeding is achieved. The specific structure is as follows: The intermittent barrier includes a fixed housing 11, which is fixedly installed on the outer wall of the first conveying guide rail 5, serving as a whole for installation, fixation, and protection. A connecting frame 31 is fixedly mounted on the inner side of the fixed housing 11. A power shaft 34 is rotatably connected inside the connecting frame 31. One end of the power shaft 34 extends through to the outside of the connecting frame 31, and a driven interlocking helical gear 36 is fixedly mounted at its end. Correspondingly, a driving interlocking helical gear 32 is fixedly mounted at the end of the first rotating shaft 15. The driving interlocking helical gear 32 and the driven interlocking helical gear 36 mesh with each other to form a linkage transmission structure. No additional drive source is required; the barrier can operate synchronously using the existing feeding power of the equipment.

[0032] A cam 35 is fixedly sleeved on the outer wall of the power shaft 34, and can rotate synchronously with the power shaft 34. A connecting plate 37 is fixedly installed on the inner side of the connecting frame 31. A rotating shaft 38 is rotatably connected inside the connecting plate 37. A locking block 33 for limiting material is fixedly connected to the end of the rotating shaft 38. The locking block 33 can rotate around the rotating shaft 38, and after rotation, it can extend to abut against the inside of the conveying groove on the inner side of the first conveying guide rail 5, forming a blocking and limiting effect on the pre-assembled parts 26 arranged in the conveying groove. At the same time, a torsion spring 39 is assembled between the locking block 33 and the connecting plate 37. The torsion spring 39 can provide elastic driving force for the reset rotation of the locking block 33. The cam 35 is correspondingly arranged directly above the locking block 33, forming a reciprocating linkage structure of cam pressing down and spring resetting.

[0033] When the equipment is working, the first rotating shaft 15 rotates continuously under the drive of the first drive structure, which in turn drives the active interlaced helical gear 32 at the end to rotate synchronously. Relying on the gear meshing transmission principle, the active interlaced helical gear 32 drives the driven interlaced helical gear 36 to rotate synchronously, which in turn drives the power shaft 34 and the cam 35 fixed on the outer wall to rotate at a uniform speed. When the protruding rotating part of the cam 35 rotates downward and contacts and presses against the top of the locking block 33, it can push the locking block 33 to deflect downward around the rotating shaft 38, so that the end of the locking block 33 extends into the conveying groove of the first conveying guide rail 5, firmly blocking the pre-loaded parts 26 arranged in the groove, forcibly stopping the feeding, and realizing material blocking and limiting.

[0034] As the protruding part of the cam 35 gradually moves away from the locking block 33 with rotation, the locking block 33 is no longer subjected to downward pressure. At this time, the elastic restoring force of the torsion spring 39 drives the locking block 33 to rotate in the opposite direction and reset, disengaging from the conveying groove of the first conveying guide rail 5, releasing the obstruction limit on the pre-assembled part 26, and allowing the pre-assembled part 26 inside the first conveying guide rail 5 to be conveyed downward normally. The entire set of blocking actions is precisely matched with the rotation position of the first feeding plate 8: when the second conical groove 29 at the top of the first feeding plate 8 rotates to the assembly position directly below the discharge port of the first conveying guide rail 5, the blocker releases the limit and accurately discharges the material, ensuring that the pre-assembled part 26 falls accurately into the corresponding position; when the second conical groove 29 has not rotated to the discharge alignment position, the blocker continues to block the discharge, preventing empty position discharge and material accumulation problems.

[0035] In existing automated valve assembly equipment, the secondary valve chamber assembly process after the pre-assembly of the sealing cup and pre-assembled parts generally suffers from numerous technical shortcomings. Traditional equipment often employs direct-fall feeding, horizontal alignment and pushing, or simple limiting and receiving structures. Valve chamber components are small and have precise structures, making them prone to problems such as posture misalignment, misalignment, material deviation, and incomplete fit during high-speed continuous feeding. Furthermore, traditional structures cannot achieve precise coaxial alignment between the valve chamber 22 and the pre-assembled workpiece (sealing cup 19 + pre-assembled part 26), often resulting in valve chamber overhangs, misaligned assembly, and uneven end face gaps. This leads to poor sealing, loose assembly, and low yield rates after subsequent stamping and assembly. Moreover, the feeding, guiding, and alignment processes are independent and lack coordination, easily leading to situations where the workpiece is delivered but the valve chamber is not unloaded, or the valve chamber falls empty and jams prematurely, severely impacting the overall automation continuity and production stability. To address the shortcomings of the existing technology, this device features a dedicated second feeder structure. Through an integrated mechanical structure that combines layered material guiding, misalignment correction, conical guide alignment, and follow-up circumferential feeding, it achieves precise automatic alignment and pre-assembly of the valve chamber 22 and the pre-assembled workpiece, providing a high-precision assembly foundation for subsequent stamping and fixing. The specific structure and working principle are as follows.

[0036] The second feeder is rotatably mounted on the top of the machine base 1 and mainly consists of a second rotating shaft 20, a second feeding frame 41, a second guide ring 14, a second feeding disc 9, and a matching limiting structure. The second rotating shaft 20 is rotatably connected to the top of the machine base 1. The second feeding frame 41 and the second guide ring 14 are fixedly mounted on the outer wall of the second rotating shaft 20, with the second guide ring 14 positioned above the second feeding frame 41, forming a layered feeding and guiding structure. The outer wall of the second guide ring 14 has several second grooves evenly distributed in a ring. These second grooves serve as precise receiving stations, stably receiving the pre-assembled sealing cup 19 and pre-assembled component 26 workpieces transported to the position by the conveyor track 10, achieving circumferential positioning and follow-up conveying of the pre-assembled workpieces.

[0037] A first annular bracket 24 is fixedly installed on the top of the machine base 1 and below the second guide ring 14. The upper surface of the first annular bracket 24 fits and limits the top end face of the sealing cup 19, and precisely avoids the assembly interface on the top of the sealing cup 19. This not only provides vertical limitation, prevents deviation and flipping of the sealing cup 19 during circumferential conveying, ensuring the stability of the pre-assembled workpiece conveying posture throughout the process, but also does not obstruct the assembly holes or interfere with the subsequent alignment and assembly operation of the valve chamber 22. The top of the second guide ring 14 has multiple vertically penetrating first conical grooves 25. The first conical grooves 25 and the second grooves are coaxially arranged in a one-to-one correspondence, forming a precise top-down guiding assembly channel.

[0038] The second feeding plate 9 is fixedly installed on the top of the second feeding ring 14. Multiple feeding grooves 21 are arranged in a ring array on the top of the second feeding plate 9. Each feeding groove 21 is composed of a sloping feeding section and a through-groove assembly section. The through-groove of the feeding groove 21 adopts a non-fully continuous staggered structure design. One part of the through-groove is vertically connected to the first conical groove 25 below, while the bottom of the other part is blocked and supported by the solid end face of the second feeding ring 14. This structure allows the valve chamber 22, which slides down from the second conveying guide rail 6, to fall into the through-groove of the feeding groove 21, forming a staggered posture with one end supported and the other end suspended: one end of the valve chamber 22 is supported and fitted against the upper end face of the second feeding ring 14, while the other end is suspended and held directly above the first conical groove 25. The valve body's own center of gravity characteristics automatically correct the horizontal offset posture, causing the center of the valve chamber 22 to automatically coincide with the assembly center of the sealing cup 19 below.

[0039] The bottom of the machine base 1 is equipped with a second drive structure for providing power. The second drive structure can use precision power components such as servo motors to drive the second rotating shaft 20 to perform uniform intermittent circular rotation. During operation, the second drive structure drives the second rotating shaft 20 to rotate continuously, synchronously driving the second feeding frame 41, the second guide ring 14, and the top second feeding plate 9 to rotate synchronously, realizing synchronous switching of workstations.

[0040] The specific assembly process is as follows: The sealing cup 19 and pre-assembled parts 26, which have been pre-assembled in the previous process, are smoothly transported to the second groove of the second feeding rack 41 via the conveyor rail 10. The second groove positions and clamps the workpiece, and it is intermittently conveyed around the circumference by the second feeding rack 41. At the same time, the second vibrating material tray 4 continuously completes the automatic sorting of valve chambers 22. The second conveyor rail 6 directionally transports a single valve chamber 22 into the guide groove 21 of the second feeding tray 9. Relying on the inclined guide and through slot misalignment support structure of the guide groove 21, the valve chamber 22 automatically forms a corrective posture. Under the action of gravity, the suspended end falls vertically along the conical surface of the first conical groove 25 and accurately and coaxially falls into the corresponding interface of the sealing cup 19 at the lower station, completing the precise alignment and pre-assembly of the valve chamber 22, sealing cup 19, and pre-assembled parts 26. The assembled workpiece, after being aligned, continues to rotate with the second feeding frame 41, and is smoothly fed into the next stage conveying track 10 and transported to the stamping station, where it awaits bidirectional extrusion and fixation by the first stamping head 7 and the second stamping head 23.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An assembly machine for valve manufacturing and processing, characterized in that, include: The machine base (1) and the feeding seat (2) are arranged on one side of the machine base (1). The top of the feeding seat (2) is equipped with a first vibrating plate (3) and a second vibrating plate (4). The discharge port of the first vibrating plate (3) is equipped with a first conveying guide rail (5), and the discharge port of the second vibrating plate (4) is equipped with a second conveying guide rail (6). The inner side of the first conveying guide rail (5) is used to convey the pre-assembled part (26) discharged from the inner side of the first vibrating plate (3), and the inner side of the second conveying guide rail (6) is used to convey the valve chamber (22) discharged from the inner side of the second vibrating plate (4). A stamping base (12) is fixedly connected to one end of the machine base (1), and a first stamping head (7) and a second stamping head (23) are respectively installed at the front end of the stamping base (12). The first feeder is located on the top of the machine base (1) and docked at the discharge port of the first conveying guide rail (5); The second feeder is located at the top of the machine base (1) and at the discharge port of the second conveying guide rail (6); The conveying track (10) is fixedly installed on the top of the machine base (1), and the first punch head (7) and the second punch head (23) are respectively located at the upper and lower ends of the conveying track (10) to form a compression assembly of the assembled pre-assembled part (26) and the valve chamber (22). The conveying track (10) is provided with multiple sections and passes through the first feeder and the second feeder in sequence to form the final feeding.

2. The assembly machine for valve manufacturing and processing according to claim 1, characterized in that, The first feeder includes a first rotating shaft (15) rotatably connected to the top of the machine base (1). A first feeding frame (17) is fixedly connected to the outer wall of the first rotating shaft (15). A feeding port (16) is fixedly connected to the top of the machine base (1). A sealing cup (19) is conveyed inside the feeding port (16). The outer wall of the first feeding frame (17) is provided with a plurality of annularly distributed first grooves for circumferentially distributing the sealing cup (19) conveyed from the inside of the feeding port (16) and discharging the assembled sealing cup (19) and pre-assembled parts (26) to the conveying track (10) so as to be conveyed to the second feeder assembly valve chamber (22) through the conveying track (10).

3. The assembly machine for valve manufacturing and processing according to claim 2, characterized in that, The first feeder also includes a second annular card seat (40) fixedly connected to the top of the machine base (1) and located outside the first feeding rack (17). The second annular card seat (40) fits against the top of the sealing cup (19) and avoids the interface at the top of the sealing cup (19). An arc-shaped guide plate (18) is fixedly connected to the top of the second annular card seat (40). An arc-shaped limiting groove (30) is opened on the inner side of the arc-shaped guide plate (18). The outer wall of the first rotating shaft (15) is fixedly connected to the first guide ring (13) and the first feeding plate (8).

4. The assembly machine for valve manufacturing and processing according to claim 3, characterized in that, The top of the first feeding tray (8) is provided with multiple guide grooves (27) and discharge grooves (28), and the discharge grooves (28) pass through the guide grooves (27). The discharge grooves (28) match the arc-shaped limiting grooves (30). The arc-shaped limiting grooves (30) and the discharge grooves (28) are aligned and set below the discharge port of the first conveying guide rail (5). The inner side of the first guide ring (13) is fixedly connected with multiple second conical grooves (29), and the second conical grooves (29) are correspondingly set with the first groove.

5. The assembly machine for valve manufacturing and processing according to claim 4, characterized in that, The arc-shaped guide plate (18) covers most of the second conical groove (29), and the discharge port of the first conveying guide rail (5) is not completely aligned with the second conical groove (29) and is in a misaligned state. This causes the pre-assembled part (26) to contact the first guide ring (13) at one end and be located above the second conical groove (29) during the process of falling through the arc-shaped limiting groove (30). This causes it to fall vertically downwards and be inserted into the sealing cup (19) located below. Through the conical hole opened on the inner side of the sealing cup (19), a guide is formed so that its end is inserted from the inner side of the sealing cup (19) and its tail end remains inside the sealing cup (19).

6. The assembly machine for valve manufacturing and processing according to claim 5, characterized in that, An intermittent barrier for auxiliary intermittent feeding is provided at the end of the first conveying guide rail (5). The intermittent barrier includes a fixed shell (11) fixedly connected to the outer wall of the first conveying guide rail (5). A connecting frame (31) is fixedly connected to the inner side of the fixed shell (11). A power shaft (34) is rotatably connected to the inner side of the connecting frame (31). One end of the power shaft (34) extends through to the outside of the connecting frame (31) and is fixedly connected to a driven interlocking helical gear (36). An active interlocking helical gear (32) that meshes with the driven interlocking helical gear (36) is fixedly connected to the end of the first rotating shaft (15). A cam (35) is fixedly connected to the outer wall of the force shaft (34). A connecting plate (37) is fixedly connected to the inner side of the connecting frame (31). A rotating shaft (38) is rotatably connected to the inner side of the connecting plate (37). A locking block (33) is fixedly connected to the end of the rotating shaft (38). The locking block (33) can rotate to abut against the inner conveying groove of the first conveying guide rail (5), thereby limiting the pre-assembled part (26) conveyed by the first conveying guide rail (5). A torsion spring (39) is installed between the locking block (33) and the connecting plate (37). The cam (35) is located above the locking block (33).

7. The assembly machine for valve manufacturing and processing according to claim 3, characterized in that, The second feeder includes a second rotating shaft (20) rotatably connected to the top of the machine base (1). The outer wall of the second rotating shaft (20) is fixedly connected to a second feeding frame (41) and a second guide ring (14). The second guide ring (14) is located above the second feeding frame (41). The outer wall of the second guide ring (14) is provided with a second groove distributed in an annular pattern for receiving the assembled sealing cup (19) and the pre-assembled part (26) conveyed from the conveying track (10). The top of the machine base (1) is fixedly connected to a first annular card seat (24) located below the second guide ring (14). The first annular card seat (24) fits against the top of the sealing cup (19) and avoids the interface at the top of the sealing cup (19). The top of the second guide ring (14) is provided with a plurality of first conical grooves (25) penetrating the inner side. The first conical grooves (25) are correspondingly arranged with the second grooves.

8. The assembly machine for valve manufacturing and processing according to claim 7, characterized in that, The second feeder also includes a second feeding disc (9) fixedly connected to the top of the second guide ring (14). The top of the second feeding disc (9) is provided with a plurality of guide grooves (21), and the guide grooves (21) are composed of inclined surfaces and through grooves. A part of the through groove is connected to the first conical groove (25) and the other part is in contact with the second guide ring (14). This allows the valve chamber (22) to fall into the through groove after it is discharged from the second conveying guide rail (6). One end of the valve chamber (22) falls onto the second guide ring (14) and the other end remains above the first conical groove (25). As a result, one end of the valve chamber (22) touches the second guide ring (14) and the other end is guided downward through the first conical groove (25) to fall into the inside of the sealing cup (19) for assembly.

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