A valve body feeding mechanism for one-way valve assembly processing

Abstract

The present application relates to the technical fields of one-way valve assembly, and discloses a valve body feeding mechanism for one-way valve assembly processing, which comprises a vibrating disc for conveying one-way valve bodies, one end of the one-way valve body being a large-head flange end and the other end being a small-head guide end, a clamping module being installed at the outlet of the vibrating disc, the clamping module having two output ends, after adopting a pre-pose optimization structure, the valve bodies can be corrected in pose and separated in advance, effectively reducing the workload of pose adjustment on the subsequent track, avoiding a large number of unqualified valve bodies from entering the subsequent process, at the same time, through the design of separation, the batch valve bodies are dispersedly conveyed, avoiding the delay of feeding caused by congestion, ensuring that the clamping module can continuously and stably obtain qualified valve bodies without waiting for replenishment, in addition, the valve bodies in vertical pose are selected in advance, greatly reducing the falling probability on the subsequent track, reducing repeated rework, improving the feeding efficiency, and laying a stable foundation for the subsequent assembly process of steel balls and springs.

Description

Technical Field

[0001] This invention relates to the field of one-way valve assembly technology, specifically to a valve body feeding mechanism for one-way valve assembly and processing. Background Technology

[0002] In the assembly and processing of check valves, the valve body, as a core component, directly affects the assembly quality and production efficiency of the entire check valve due to the efficiency and posture accuracy of its automated feeding. Currently, the feeding of check valve bodies is mostly achieved using a vibratory feeder in conjunction with a clamping module. The vibratory feeder uses its vibration force to transport batches of valve bodies to the discharge track, where the clamping module then picks up the valve bodies and transports them to the subsequent assembly station. The valve body typically consists of a large flange end and a small guide end. Subsequent assembly processes (such as ball assembly and spring assembly) require the valve body to maintain a vertical posture with the large end facing down and the small end facing up. Therefore, posture control of the valve body during the feeding process is particularly critical.

[0003] However, existing one-way valve body feeding mechanisms still have many shortcomings in practical applications, making it difficult to meet the needs of efficient and stable automated production.

[0004] First, after the batch of valve bodies are placed into the vibratory feeder, most of them are initially in a side-lying position, with only a very few in a vertical position. When these valve bodies are pushed up to the discharge track by the vibration force of the vibratory feeder, they are prone to falling off the track due to mutual pushing and improper posture, resulting in a valve body supply gap on the track. Especially for clamping modules with dual output ends, the gap will cause clamping waiting, which will seriously affect production efficiency.

[0005] Secondly, the accumulation of all valve bodies in the middle of the vibratory plate not only increases the time it takes for the valve bodies to climb the track, but also easily leads to multiple rows of valve bodies being congested on the track at the same time, further aggravating the accumulation and falling problems.

[0006] Furthermore, existing posture correction structures are mostly set on the discharge track, which can only correct the valve body during the climbing process. The correction range is limited and the correction efficiency is low. A large number of valve bodies with unqualified postures still enter the subsequent process or fall into the vibratory feeder for recirculation, which increases the feeding cycle.

[0007] In addition, in order to improve the posture correction effect, the discharge track of the existing vibratory feeder needs to be designed to be longer and higher, resulting in a larger overall space occupied by the equipment. Moreover, the longer the track, the higher the probability of the valve body falling off, which further affects the feeding stability.

[0008] Therefore, the present invention proposes a valve body feeding mechanism for one-way valve assembly and processing. Summary of the Invention

[0009] The purpose of this invention is to provide a valve body feeding mechanism for one-way valve assembly and processing, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a valve body feeding mechanism for one-way valve assembly and processing, comprising a vibratory feeder for conveying one-way valve bodies. One end of the one-way valve body is a large-end flange end, and the other end is a small-end guide end. A clamping module is installed at the outlet of the vibratory feeder, and the clamping module has two output ends. A pre-attitude optimization disk for pre-correcting the attitude of the one-way valve body is installed at the center of the vibratory feeder. The outer periphery of the pre-attitude optimization disk is set in an outwardly expanding arc shape. The pre-attitude optimization disk vibrates synchronously with the vibratory feeder. A central flow divider cone is fixedly connected at the center of the pre-attitude optimization disk. The pre-attitude optimization disk and the central flow divider cone are respectively provided with annularly equidistantly arranged vertical limiting grooves, universal release grooves, and attitude correction grooves. The aperture of the vertical limiting grooves only allows the one-way valve body to pass through in a vertical attitude. The aperture of the universal release grooves allows the one-way valve body to pass through in any attitude. The attitude correction grooves are used to provide attitude correction opportunities for one-way valve bodies in any attitude.

[0011] Preferably, the vertical limiting groove is located at the outermost position where the arc-shaped segment and the planar segment of the pre-attitude optimization disk meet; the universal release groove is located in the middle area of ​​the planar region of the pre-attitude optimization disk; and the attitude correction groove is vertically located on the central diversion cone.

[0012] Preferably, each of the vertical limiting grooves is fixedly connected to a retaining tube at its bottom. The inner diameter of the retaining tube is adapted to the large end of the one-way valve body to guide and limit the vertical posture of the one-way valve body, so as to prevent the one-way valve body from deviating when passing through.

[0013] Preferably, the inner wall of the retaining tube is symmetrically provided with assembly grooves, and each assembly groove is hinged with a deceleration protrusion. An elastic element is installed between the shaft of the deceleration protrusion and the assembly groove to decelerate and limit the flow of the passing one-way valve body, so as to avoid congestion caused by multiple one-way valve bodies passing through at the same time.

[0014] Preferably, each of the posture correction slots is fixedly connected with a triangular correction block, and the two inclined sides of the triangular correction block are arranged facing the entrance side of the posture correction slot.

[0015] Preferably, the triangular correction block has a selection cavity in the middle. The one-way valve body, which lies on its side and enters the posture correction groove, slides down the triangular correction block. The one-way valve body, which is tilted or vertical, is stuck between the selection cavity and the inner wall of the posture correction groove.

[0016] Preferably, the bottom of the selection cavity is symmetrically provided with selection through holes, which are semi-circular in shape and whose size is adapted to the large flange end of the one-way valve body. The selection through holes extend downward to form a semi-circular sleeve, which is used to guide and limit the passage of the one-way valve body.

[0017] Preferably, the bottom of the attitude correction groove is symmetrically fixedly connected with a correction baffle, which is used to correct the attitude of the one-way valve body entering the attitude correction groove so that the one-way valve body passes through in a vertical posture.

[0018] Preferably, the clamping module is equipped with a material sensor, which is used to detect whether there is a one-way valve body in the fixture, so as to avoid empty clamping or repeated feeding and ensure feeding accuracy and assembly stability.

[0019] Preferably, the vibratory feeder is further equipped with a valve body extrusion cone hole assembly, a valve body outer diameter reduction assembly, an airtightness testing assembly, and a feeding assembly. The valve body extrusion cone hole assembly is used for pre-processing the one-way valve body, the valve body outer diameter reduction assembly is used to complete the forming of the one-way valve body, the airtightness testing assembly is used to detect the leakage and opening flow of the one-way valve, and the feeding assembly is used to automatically feed qualified finished products.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. By adopting a pre-attitude optimization structure, the valve body can be pre-corrected and diverted, effectively reducing the workload of attitude adjustment on the subsequent track and preventing a large number of unqualified valve bodies from entering the subsequent process. At the same time, through the diversion design, batch valve bodies are transported in a dispersed manner, avoiding material loading delays caused by concentrated congestion, ensuring that the clamping module can continuously and stably obtain qualified valve bodies without waiting for refills. In addition, pre-screening valve bodies with vertical attitude significantly reduces the probability of falling on the subsequent track, reducing rework, improving material loading efficiency, and laying a stable foundation for the subsequent assembly of steel balls and springs, ensuring a continuous and uninterrupted production process.

[0021] 2. The pre-attitude optimization structure can accurately select valve bodies with a vertical attitude, reducing the attitude adjustment steps on the subsequent track and shortening the time for the valve body to climb the track. Compared with the traditional non-splitting design, it can avoid multiple valve bodies crowding on the track at the same time, reducing attitude deviation caused by mutual squeezing and lowering the probability of valve bodies falling. At the same time, the splitting design allows valve bodies to enter the subsequent process in an orderly manner, avoiding congestion caused by concentrated climbing, ensuring that the clamping module can continuously obtain qualified valve bodies without frequent waiting for refills, further improving the overall production rhythm and adapting to the high-efficiency requirements of dual-output clamping.

[0022] 3. This pre-attitude optimization design eliminates the need for forced correction of all valve bodies. It adopts a flexible mode of "correcting if possible and allowing normal operation if not correctable," which avoids efficiency losses caused by over-correction and ensures a stable supply of qualified valve bodies. At the same time, it completes part of the attitude screening in advance, reducing the workload of subsequent track adjustments, making the valve body climb more smoothly, effectively avoiding repeated cycles caused by unqualified attitudes, and indirectly shortening the overall production cycle, thus meeting the high-efficiency requirements of automated mass production.

[0023] 4. The coordination between the retaining tube and the buffer structure further enhances feeding stability. The buffer design prevents the valve body from being impacted due to excessive descent speed, thus preventing posture deviation. The retaining tube's limiting function ensures that the valve body remains vertical during transport, preventing tipping due to collisions. This design achieves precise posture control without adding complex processes, reducing manual adjustment costs and minimizing the impact of defective valve bodies on subsequent assembly processes, while ensuring the assembly accuracy of components such as steel balls and springs.

[0024] 5. The pre-attitude optimization design achieves high efficiency and orderliness in the feeding process, effectively solving problems such as congestion, discontinuity, and attitude deviation in traditional feeding. By pre-diverting and accurately screening, the probability of valve body falling and rework is greatly reduced, and the subsequent track conveying time is shortened, allowing the clamping module to work continuously and stably without frequent waiting for replenishment. More importantly, since a large number of valve bodies with vertical attitude are pre-screened, there is no need to correct the attitude by lengthening or heightening the track. This can significantly reduce the length and height of the vibratory feeder track, reduce the overall space occupied by the equipment, and at the same time, the supporting subsequent assembly process can proceed smoothly, ensuring the efficient operation of the entire production process. It takes into account both production efficiency and product quality, optimizes the equipment layout, and fully meets the actual needs of automated mass production. Attached Figure Description

[0025] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the main structure of the present invention.

[0026] Figure 2 This is a top-view perspective view of the main structure of the present invention.

[0027] Figure 3 This is a cross-sectional plan view of the main structure of the present invention.

[0028] Figure 4 This is a three-dimensional schematic diagram of the one-way valve body of the present invention.

[0029] Figure 5 This is a three-dimensional schematic diagram of the pre-attitude optimization disk of the present invention.

[0030] Figure 6 For the present invention Figure 5 Enlarged 3D structural diagram at point A.

[0031] Figure 7 This is a partial cross-sectional perspective view of the retaining tube of the present invention.

[0032] Figure 8 This is a top-view three-dimensional schematic diagram of the pre-attitude optimization disk of the present invention.

[0033] Figure 9 For the present invention Figure 8Enlarged 3D structural diagram at point B.

[0034] Figure 10 This is a partial cross-sectional perspective view of the triangular correction block of the present invention.

[0035] In the picture: 1. Vibratory feeder; 2. Clamping module; 3. One-way valve body; 4. Pre-attitude optimization disc; 40. Central flow divider cone; 41. Vertical limiting groove; 411. Holding tube; 412. Assembly groove; 413. Deceleration protrusion; 414. Elastic component; 42. Universal release groove; 43. Attitude correction groove; 431. Triangular correction block; 432. Selection cavity; 433. Selection through hole; 444. Correction stop. Detailed Implementation

[0036] 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 protection scope of the present invention.

[0037] It should be noted that the working principle and specific structure of the above-mentioned vibratory feeder 1, clamping module 2, and the supporting steel ball assembly, spring assembly, CCD detection unit, valve body extrusion cone hole assembly, valve body outer diameter closing assembly, airtightness testing assembly and unloading assembly are all existing technologies. Therefore, given the universality of the above structures, their specific principles will not be described in detail below.

[0038] Please see Figures 1 to 5 The present invention provides an embodiment: A valve body feeding mechanism for assembling and processing a one-way valve includes a vibratory feeder 1 for conveying a one-way valve body 3. One end of the one-way valve body 3 is a large-end flange, and the other end is a small-end guide. A clamping module 2 with two output ends is installed at the outlet of the vibratory feeder 1. A pre-attitude optimization disk 4 for pre-correcting the attitude of the one-way valve body 3 is installed at the center of the vibratory feeder 1. The pre-attitude optimization disk 4 has an outwardly expanding arc shape on its outer periphery and moves synchronously with the vibratory feeder 1. Vibration, a central diversion cone 40 is fixedly connected at the center of the pre-attitude optimization disk 4. The pre-attitude optimization disk 4 and the central diversion cone 40 are respectively provided with vertical limiting grooves 41, universal release grooves 42 and attitude correction grooves 43 arranged in annular intervals. The aperture of the vertical limiting groove 41 only allows the one-way valve body 3 to pass through in a vertical attitude. The aperture of the universal release groove 42 allows the one-way valve body 3 to pass through in any attitude. The attitude correction groove 43 is used to provide an attitude correction opportunity for the one-way valve body 3 in any attitude.

[0039] like Figure 5As shown, the vertical limiting groove 41 is located at the outermost position where the arc-shaped section and the planar section of the pre-attitude optimization disk 4 meet; the general release groove 42 is located in the middle area of ​​the planar region of the pre-attitude optimization disk 4; and the attitude correction groove 43 is vertically located on the central diversion cone 40.

[0040] Specifically, this organization achieves efficient flow diversion and attitude correction of the one-way valve body 3 through the pre-attitude optimization disk 4: The purpose of diversion is to divert the vibration force of the vibratory plate 1 to the outside. The pre-posture optimization plate 4, together with the central diversion cone 40, diverts the one-way valve body 3 to the outer periphery of the plate, avoiding the one-way valve body 3 from accumulating in the middle, effectively reducing the time it takes for the one-way valve body 3 to climb to the discharge track and improving the feeding efficiency.

[0041] The vertical limiting groove 41 ensures the posture of the vertical limiting groove 41: The vertical limiting groove 41 is a hole structure, and its hole diameter is only adapted to the vertical posture of the one-way valve body 3 (whether the large end is down or the small end is down). Only the one-way valve body 3 in a vertical state is allowed to pass through, and the one-way valve body 3 that meets the feeding requirements is forcibly screened out from the structure.

[0042] The correction logic of posture correction slot 43: Posture correction slot 43 adopts a flexible strategy of "correcting if it can be corrected, and continuing to pass if it cannot be corrected": When the one-way valve body 3 is placed, most of the one-way valve bodies 3 slide down along the central diversion cone 40 and fall directly through the universal release groove 42. Some of the one-way valve bodies 3 are squeezed into the attitude correction groove 43, and some of the one-way valve bodies 3 are pushed to the entrance of the vertical limiting groove 41 by the one-way valve bodies 3 above during the process of entering the universal release groove 42.

[0043] If the one-way valve body 3 fails to enter the vertical limiting groove 41, the one-way valve body 3 will move outward under the action of vibration force because the pre-attitude optimization disk 4 has an outwardly expanding arc structure. After being pushed against the inner wall of the disk, it will overturn. The large flange end of the one-way valve body 3 has a larger mass and is more likely to roll on the pre-attitude optimization disk 4, thus regaining the opportunity to enter the vertical limiting groove 41.

[0044] Once the large or small end of the one-way valve body 3 enters the vertical limiting groove 41, under continuous vibration, the one-way valve body 3 will fall completely into the groove. If it cannot fall into the vertical limiting groove 41, the one-way valve body 3 will eventually fall through the universal release groove 42 during continuous vibration and rolling.

[0045] like Figure 5 As shown, each vertical limiting groove 41 is fixedly connected to a retaining tube 411 at its bottom. The inner diameter of the retaining tube 411 is adapted to the large end of the one-way valve body 3, and is used to guide and limit the vertical posture of the one-way valve body 3 to prevent the one-way valve body 3 from deviating when passing through.

[0046] like Figures 5 to 7As shown, the inner wall of the retaining tube 411 is symmetrically provided with assembly grooves 412, and each assembly groove 412 is hinged with a deceleration protrusion 413. An elastic element 414 is installed between the shaft of the deceleration protrusion 413 and the assembly groove 412 to decelerate and limit the flow of the passing one-way valve body 3, so as to avoid congestion caused by multiple one-way valve bodies 3 passing through at the same time.

[0047] Specifically, the retaining tube 411 and the deceleration protrusion 413 work together to achieve a dual function: on the one hand, the one-way valve body 3 falls quickly along the retaining tube 411 under its own weight and vibration. If it falls directly and quickly onto the surface of the vibrating plate 1, it is very easy for the originally vertical one-way valve body 3 to tilt or overturn due to excessive impact, and it will be unable to maintain the feeding posture; on the other hand, multiple one-way valve bodies 3 falling at the same time are prone to squeezing and accumulating with each other at the channel opening or on the plate, which further aggravates the posture failure. By setting a deceleration protrusion 413 connected to the elastic element 414 and capable of automatic reset inside the retaining tube 411, a flexible obstruction and buffer deceleration can be formed for the falling one-way valve body 3. Under the limiting action of the retaining tube 411, the one-way valve body 3 can still be stably conveyed downward in a vertical posture. After a single one-way valve body 3 passes through, the deceleration protrusion 413 is quickly reset under the action of the elastic element 414, which can form a short-term delay obstruction for subsequent one-way valve bodies 3, avoiding multiple one-way valve bodies 3 from passing through at the same time and falling in clusters. This effectively prevents the one-way valve bodies 3 from overturning, tilting, or piling up on the surface of the vibrating plate 1 due to crowding and impact, ensuring a stable and reliable feeding posture.

[0048] like Figure 9 and Figure 10 As shown, each of the posture correction slots 43 is fixedly connected with a triangular correction block 431, and the two inclined sides of the triangular correction block 431 are set towards the entrance side of the posture correction slot 43.

[0049] like Figure 10 As shown, a selection cavity 432 is provided in the middle of the triangular correction block 431. The one-way valve body 3, which lies on its side and enters the posture correction groove 43, slides down along the triangular correction block 431. The one-way valve body 3, which is in an inclined or vertical position, is stuck between the selection cavity 432 and the inner wall of the posture correction groove 43.

[0050] like Figure 10 As shown, the bottom of the selection cavity 432 is symmetrically provided with selection through holes 433. The selection through holes 433 are semi-circular and their size is adapted to the large flange end of the one-way valve body 3. The selection through holes 433 extend downward to form a semi-circular sleeve, which is used to guide and limit the passage of the one-way valve body 3.

[0051] like Figure 9 and Figure 10As shown, the bottom of the attitude correction groove 43 is symmetrically and fixedly connected with a correction baffle 444. The correction baffle 444 is used to correct the attitude of the one-way valve body 3 entering the attitude correction groove 43, so that the one-way valve body 3 can pass through in a vertical posture.

[0052] Specifically, the one-way valves 3 entering the posture correction groove 43 are mainly in a side-lying or tilted / skewed vertical posture. One-way valves 3 entering in a side-lying posture will roll directly down the inclined side of the triangular correction block 431. The correction baffle 444 at the bottom of the posture correction groove 43 can guide the falling one-way valves 3 by contact. Because the larger flange end of the one-way valve 3 is larger, it is more likely to contact the correction baffle 444 during its descent. Under the contact action, the original posture of the one-way valve 3 can be changed, potentially transforming it into a vertical posture that meets the loading requirements. Simultaneously, some one-way valves 3 in a tilted or skewed posture will be temporarily stuck between the selection cavity 432 and the inner wall of the posture correction groove 43. Under the vibration force of the vibrating plate 1 and the squeezing and pushing action of the subsequently falling one-way valves 3, the stuck one-way valves 3 will detach from the selection cavity 432 and continue to move downwards.

[0053] When the one-way valve body 3 passes through the semi-circular selection through hole 433 at the bottom of the selection chamber 432, under the action of its own structure and falling inertia, it also has the probability of falling vertically along the selection through hole 433 and the semi-circular sleeve below. The attitude correction groove 43 adopts a flexible correction method, which can optimize the attitude of the one-way valve body 3, which is the best effect. Even if some one-way valve bodies 3 fail to complete the correction, it will not affect the overall feeding process. The attitude correction groove 43 is only used as a pre-auxiliary correction structure to further improve the feeding efficiency and the screening ratio of vertical one-way valve bodies 3.

[0054] It should be noted that the clamping module 2 is equipped with a material sensor, which is used to detect whether there is a one-way valve body 3 in the fixture, to avoid empty clamping or repeated feeding, and to ensure feeding accuracy and assembly stability. The vibratory plate 1 is also equipped with a valve body extrusion cone hole assembly, a valve body outer diameter reduction assembly, an airtightness test assembly and a feeding assembly. The valve body extrusion cone hole assembly is used to pre-process the one-way valve body 3, the valve body outer diameter reduction assembly is used to complete the forming of the one-way valve body 3, the airtightness test assembly is used to detect the leakage and opening flow of the one-way valve, and the feeding assembly is used to automatically feed qualified finished products.

[0055] It should be added that a steel ball assembly and a spring assembly are also provided on the side of the vibratory feeder 1: The steel ball assembly assembly includes a 3.5mm steel ball feeding unit and a 4mm steel ball riveting unit, which are used to place 3.5mm steel balls into the one-way valve body 3 and to complete the riveting assembly of 4mm steel balls, respectively, in sync with the valve body feeding rhythm. The spring assembly assembly includes a spring winding unit, a tempering and shaping unit, and a spring feeding unit. It can automatically complete the spring winding, tempering and shaping, and feeding, and accurately assemble the spring into the one-way valve body 3. It works in conjunction with the steel ball assembly process to complete the assembly of the one-way valve core components. In addition, the equipment is also equipped with a CCD detection unit, which is used to visually inspect the spring posture and the steel ball assembly position, screen out defective products, and further improve the finished product qualification rate and assembly accuracy.

[0056] The complete working principle of the above embodiments is as follows: Specifically, firstly, the one-way valve bodies 3 to be processed are placed in batches into the vibratory feeder 1, and the vibratory feeder 1 is started. The vibratory feeder 1 generates a continuous outward vibration force, which drives the internal pre-attitude optimization disk 4 to vibrate synchronously. At the same time, the central diversion cone 40 moves together with the pre-attitude optimization disk 4, and begins to divert and pre-attitude correct the one-way valve bodies 3.

[0057] It should be noted that most of the one-way valve bodies 3 initially placed in batches are in a side-lying position, with only a very few in a vertical position. If no pre-treatment is performed, these side-lying one-way valve bodies 3 will slowly climb onto the discharge track of the vibratory feeder 1 under the vibration force of the vibratory feeder 1. During this process, a large number of one-way valve bodies 3 will fall off the track due to improper posture and mutual squeezing and collision, resulting in a gap in the supply of one-way valve bodies 3 on the track. The clamping module 2 has two output ends and needs to clamp two one-way valve bodies 3 at the same time for subsequent assembly. Once a gap occurs, the clamping module 2 needs to wait for the one-way valve bodies 3 to be replenished, which seriously affects the overall assembly efficiency.

[0058] Based on this, the core purpose of the pre-attitude optimization disc 4 is to increase the probability that the one-way valve body 3 is in a vertical posture (especially with the large flange end facing down and the small guide end facing up) in the initial state by pre-diverting and assisting in attitude correction, thereby reducing the amount of one-way valve body 3 falling off the discharge track of the vibratory disc 1, avoiding supply interruptions, and at the same time significantly shortening the length and height of the discharge track of the vibratory disc 1, reducing the overall space occupied by the equipment.

[0059] During operation, the central diversion cone 40 diverts a batch of one-way valve bodies 3 to the outer periphery of the pre-attitude optimization disk 4, preventing the one-way valve bodies 3 from accumulating in the middle of the vibrating disk 1, thereby reducing the time it takes for the one-way valve bodies 3 to climb to the discharge track and improving the overall feeding efficiency.

[0060] After diversion, the one-way valve body 3 mainly moves in three parts: most of the one-way valve bodies 3 slide down along the central diversion cone 40, and fall directly onto the surface of the vibratory plate 1 through the universal release groove 42 in the middle of the pre-attitude optimization disk 4, and enter the track attitude screening of the vibratory plate 1; a part of the one-way valve bodies 3 are squeezed by the surrounding one-way valve bodies 3 and enter the attitude correction groove 43 on the central diversion cone 40 for auxiliary attitude correction; and another part of the one-way valve bodies 3 are pushed to the entrance of the vertical limiting groove 41 on the outer periphery of the pre-attitude optimization disk 4 by the one-way valve bodies 3 falling from above during the process of entering the universal release groove 42.

[0061] For the one-way valve body 3 entering the posture correction groove 43, it is mainly in a side-lying posture or a tilted or skewed vertical posture. The two inclined sides of the triangular correction block 431 face the entrance. The side-lying one-way valve body 3 will slide down along the inclined sides. During the fall, the large flange end of the one-way valve body 3 is larger in volume and mass, and is more likely to contact the correction stop edge 444 at the bottom of the posture correction groove 43. Under the action of resistance, it has a probability of turning into a vertical posture. The partially tilted one-way valve body 3 will be temporarily stuck between the selection cavity 432 and the inner wall of the posture correction groove 43. Under the vibration force and the subsequent squeezing and pushing of the one-way valve body 3, it will be released from the stuck position and fall with a probability of maintaining a vertical posture through the semi-circular selection through hole 433 at the bottom of the selection cavity 432 and the extended sleeve.

[0062] It should be noted that the attitude correction groove 43 adopts a flexible correction method, which does not require all one-way valves 3 to be corrected. Even if some one-way valves 3 fail to be corrected, it will not affect the overall feeding process. Its core function is to increase the proportion of vertical attitude one-way valves 3.

[0063] For the one-way valve body 3 entering the vertical limiting groove 41, since the vertical limiting groove 41 has a hole-like structure, the hole diameter is only adapted to the vertical posture of the one-way valve body 3. It can pass through whether the large end is down or the small end is down. The structure forces the selection of one-way valve bodies 3 with a vertical posture. After these one-way valve bodies 3 enter the retaining tube 411 at the bottom of the vertical limiting groove 41, the inner diameter of the retaining tube 411 is adapted to the large end of the one-way valve body 3, which plays a guiding and limiting role for the one-way valve body 3, ensuring that it always falls in a vertical posture.

[0064] Meanwhile, the deceleration protrusion 413 on the inner wall of the retaining pipe 411 remains in the reset state under the action of the elastic element 414, forming a flexible block for the falling one-way valve body 3, which plays a role in buffering and deceleration, preventing the one-way valve body 3 from tipping over or tilting due to excessive falling speed and impact. At the same time, after a single one-way valve body 3 passes through, the deceleration protrusion 413 quickly resets, forming a short-term delay block for subsequent one-way valve bodies 3, preventing multiple one-way valve bodies 3 from passing through at the same time and falling in clusters, avoiding accumulation and congestion on the surface of the vibrating plate 1, and further ensuring the vertical posture of the one-way valve body 3.

[0065] After the pre-attitude optimization disk 4 diverts, filters, and assists in the correction, most of the one-way valve bodies 3 fall vertically onto the surface of the vibratory disk 1. Under the action of vibration, they climb up the discharge track. Since a large number of vertically positioned one-way valve bodies 3 have been pre-screened, the amount of one-way valve bodies 3 falling on the track is greatly reduced, effectively avoiding the supply interruption and ensuring that the two output ends of the clamping module 2 can continuously and stably clamp the one-way valve bodies 3.

[0066] It should be noted that the general release slot 42 allows the one-way valve body 3 to pass directly in any posture; the vertical limiting slot 41 is a "forced" screening, only allowing the one-way valve body 3 in a vertical posture to pass; the posture correction slot 43 is an "auxiliary" correction, belonging to "random" conveying, without forced posture screening. These three parts divide the one-way valve body 3 into three different conveying paths, resulting in differences in the falling speed of the one-way valve body 3. This effectively optimizes the problem in the prior art where the one-way valve bodies 3 push against each other after being put in batches, and multiple rows of one-way valve bodies 3 are easily congested on the track at the same time. It further reduces the accumulation and falling of the one-way valve bodies 3, ensuring the smoothness of the feeding process.

[0067] The material sensor on the clamping module 2 detects in real time whether there is a one-way valve body 3 inside the fixture, avoiding empty clamping or repeated feeding, and ensuring feeding accuracy.

[0068] Subsequently, the clamping module 2 transports the clamped one-way valve body 3 to the assembly station. At this time, the one-way valve body 3 needs to be in the position with the large end down and the small end up to facilitate the assembly operation of the rear steel ball assembly assembly and spring assembly assembly. The 3.5mm steel ball feeding unit of the steel ball assembly assembly places steel balls into the one-way valve body 3, and the 4mm steel ball riveting unit completes the riveting assembly. After the spring assembly assembly completes the spring winding and tempering, the spring is accurately assembled into the one-way valve body 3. The CCD detection unit performs visual inspection on the steel ball assembly position and spring posture to screen out defective products. Then, the one-way valve body 3 goes through the valve body extrusion cone hole assembly pre-processing, the valve body outer diameter closing assembly forming, and the air tightness test assembly to detect the leakage and opening flow. The qualified finished products are automatically unloaded by the unloading assembly to complete the assembly and processing of the entire one-way valve.

[0069] In summary, this mechanism effectively improves the probability of the initial vertical posture of the one-way valve body 3 by pre-diverting and assisting in posture correction through the pre-posture optimization disc 4. This reduces the problem of the one-way valve body 3 falling off and breaking on the track of the vibratory disc 1, shortens the track length and height, and, in conjunction with the synergistic effect of the retaining tube 411, deceleration protrusion 413 and other structures, ensures stable and efficient feeding, meets the clamping requirements of the dual output ends of the clamping module 2, and works in conjunction with subsequent supporting components to achieve automated and efficient assembly of the one-way valve.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] 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 valve body feeding mechanism for assembling and processing a one-way valve, comprising a vibratory feeder (1), the vibratory feeder (1) being used to convey a one-way valve body (3), one end of the one-way valve body (3) being a large-end flange end and the other end being a small-end guide end, a clamping module (2) being installed at the outlet of the vibratory feeder (1), the clamping module (2) having two output ends, characterized in that: The vibratory plate (1) is equipped with a pre-attitude optimization plate (4) for pre-correcting the attitude of the one-way valve body (3). The pre-attitude optimization plate (4) is set with an outward arc shape on its outer periphery. The pre-attitude optimization plate (4) vibrates synchronously with the vibratory plate (1). A central flow divider cone (40) is fixedly connected to the center of the pre-attitude optimization plate (4). The pre-attitude optimization plate (4) and the central flow divider cone (40) are respectively provided with vertical limiting grooves (41), universal release grooves (42) and attitude correction grooves (43) arranged in annular equidistant arrangement. The aperture of the vertical limiting groove (41) only allows the one-way valve body (3) to pass through in a vertical attitude. The aperture of the universal release groove (42) allows the one-way valve body (3) to pass through in any attitude. The attitude correction groove (43) is used to provide an attitude correction opportunity for the one-way valve body (3) in any attitude. The vertical limiting groove (41) is located at the outermost position where the arc segment and the plane segment of the pre-attitude optimization disk (4) meet; the universal release groove (42) is located in the middle area of ​​the plane of the pre-attitude optimization disk (4); the attitude correction groove (43) is vertically located on the central diversion cone (40).

2. The valve body feeding mechanism for one-way valve assembly and processing according to claim 1, characterized in that: Each of the vertical limiting grooves (41) is fixedly connected to a retaining tube (411) at the bottom. The inner diameter of the retaining tube (411) is adapted to the large end of the one-way valve body (3) to guide and limit the vertical posture of the one-way valve body (3) and prevent the one-way valve body (3) from deviating when passing through.

3. The valve body feeding mechanism for one-way valve assembly and processing according to claim 2, characterized in that: The inner wall of each retaining tube (411) is symmetrically provided with assembly grooves (412), and each assembly groove (412) is hinged with a deceleration protrusion (413). An elastic element (414) is installed between the shaft of the deceleration protrusion (413) and the assembly groove (412) for decelerating and limiting the flow of the passing one-way valve body (3).

4. The valve body feeding mechanism for one-way valve assembly and processing according to claim 1, characterized in that: Each posture correction groove (43) is fixedly connected with a triangular correction block (431), and the two inclined sides of the triangular correction block (431) are set towards the entrance side of the posture correction groove (43).

5. The valve body feeding mechanism for one-way valve assembly and processing according to claim 4, characterized in that: The triangular correction block (431) has a selection cavity (432) in the middle. The one-way valve body (3) that lies on its side and enters the posture correction groove (43) slides down along the triangular correction block (431). The one-way valve body (3) in an inclined or vertical position is stuck between the selection cavity (432) and the inner wall of the posture correction groove (43).

6. The valve body feeding mechanism for one-way valve assembly and processing according to claim 5, characterized in that: The bottom of the selection cavity (432) is symmetrically provided with selection through holes (433). The selection through holes (433) are semi-circular and their size is adapted to the large flange end of the one-way valve body (3). The selection through holes (433) extend downward to form a semi-circular sleeve, which is used to guide and limit the passage of the one-way valve body (3).

7. The valve body feeding mechanism for one-way valve assembly and processing according to claim 6, characterized in that: The bottom of the posture correction groove (43) is symmetrically fixedly connected with a correction baffle (444). The correction baffle (444) is used to correct the posture of the one-way valve body (3) entering the posture correction groove (43) so that the one-way valve body (3) can pass through in a vertical posture.

8. The valve body feeding mechanism for one-way valve assembly and processing according to claim 1, characterized in that: The clamping module (2) is equipped with a material sensor, which is used to detect whether a one-way valve body (3) exists in the fixture.

9. The valve body feeding mechanism for one-way valve assembly and processing according to claim 1, characterized in that: The vibratory plate (1) is also equipped with a valve body extrusion cone hole assembly, a valve body outer diameter reduction assembly, an airtightness test assembly and a feeding assembly. The valve body extrusion cone hole assembly is used to pre-process the one-way valve body (3). The valve body outer diameter reduction assembly is used to complete the forming of the one-way valve body (3). The airtightness test assembly is used to detect the leakage and opening flow of the one-way valve. The feeding assembly is used to automatically feed qualified finished products.

Images