Spring steel ball valve and production process thereof

Abstract

The invention provides a spring steel ball valve and a production process thereof, belongs to the technical field of one-way valve production, and solves the technical problems that an existing spring steel ball valve is poor in sealing effect, low in production automation degree and the like. The spring steel ball valve comprises a valve body lower shell and a valve body upper shell, the valve body lower shell is in threaded connection with the valve body upper shell, a valve element spring, a steel ball and an O-shaped rubber ring are sequentially arranged in an inner space formed by the valve body lower shell and the valve body upper shell from bottom to top, the valve element spring is arranged in the valve body lower shell, and the steel ball abuts against the end of the valve element spring and the inner ring of the lower end of the O-shaped rubber ring. The production process comprises the following steps: placing an order; producing and purchasing the valve body; assembling and welding; airtight testing; and fully inspecting the product. The spring steel ball valve can be produced in batches through sequential discharging, sequential clamping and assembling, valve body screwing, valve body welding and product overturning and outputting, the production process is high in automation degree and efficiency, the spring steel ball valve is stable in structure and good in sealing performance, and the requirement for multi-working-condition stable operation is met.

Description

Technical Field

[0001] The invention belongs to the technical field of one-way valve production, and relates to a spring steel ball valve, in particular to a production process of a spring steel ball valve. Background Art

[0002] In the field of fluid control, the performance and quality of the valve are crucial to the stable operation of the system. Traditional spring steel ball valves have some shortcomings in practical applications. The sealing performance of some existing spring steel ball valves is poor. During long-term use, they are prone to leakage, which affects the fluid delivery efficiency and may even cause system failure. Moreover, the production process of some spring steel ball valves is relatively complicated, the degree of automation is low, and the production efficiency is low, which makes it difficult to meet the needs of large-scale industrial production.

[0003] Therefore, we propose a spring steel ball valve and its production process, which can mass-produce spring steel ball valves through sequenced discharge, sequential clamping assembly, valve body screwing, valve body welding and product flipping output. The production process has a high degree of automation and high efficiency. The spring steel ball valve has a stable structure and good sealing performance and can meet the requirements of multiple working conditions. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the prior art and to propose a spring steel ball valve and its production process. The technical problem to be solved by the invention is: how to mass-produce spring steel ball valves with stable structure and good sealing performance through sequenced discharge, sequential clamping and assembly, valve body screwing, valve body welding and product flipping output.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A spring steel ball valve comprises a valve body lower shell and a valve body upper shell, wherein the valve body lower shell is threadedly connected to the valve body upper shell, and an internal space formed by the valve body lower shell and the valve body upper shell is provided with a valve core spring, a steel ball and an O-type rubber ring in sequence from bottom to top, the valve core spring is arranged in the valve body lower shell, the O-type rubber ring is arranged in the valve body upper shell, and the steel ball respectively abuts against the end of the valve core spring and the lower inner ring of the O-type rubber ring.

[0006] The working principle of the present invention is: when gas is introduced from the lower shell of the valve body, the gas pushes the steel ball to squeeze the O-type rubber ring, the steel ball fits tightly against the O-type rubber ring, and the O-type rubber ring fits tightly against the upper shell of the valve body to block the passage of gas; when gas is introduced from the upper shell of the valve body and reaches a certain pressure, the gas pushes the steel ball to squeeze the valve core spring, and the steel ball leaves the O-type rubber ring and no longer conflicts with the O-type rubber ring, the gas passes through the gap between the steel ball and the O-type rubber ring, and after gas is no longer introduced, the valve core spring pushes the steel ball back to the initial position.

[0007] The valve body upper shell includes an upper shell body and an upper shell air pipe. The upper shell air pipe is located above the upper shell body. The inner ring of the upper shell body is provided with a screw thread. The bottom of the upper shell body is provided with a rubber mounting hole and a fitting groove. The fitting groove matches the shape and size of the O-ring. The fitting groove is located below the rubber mounting hole and is connected with the rubber mounting hole. The upper shell air pipe is hollow inside and is connected with the fitting groove. The upper shell air pipe is provided with a plurality of inverted skirts.

[0008] With the above structure, the screw thread is used to connect the upper shell of the valve body and the lower shell of the valve body, so that the upper shell of the valve body and the lower shell of the valve body fit closely and ensure airtightness to prevent leakage. The rubber mounting hole is used to install and fix the O-type rubber ring. The fitting groove is used to fit the O-type rubber ring to prevent leakage during work and achieve a better sealing effect. The several inverted skirts are convenient for connection with external pipes.

[0009] The valve body lower shell includes a lower shell body and a lower shell air pipe with a middle hole, the lower shell air pipe is located below the lower shell body, the outer side of the lower shell body is provided with a second screw thread matching the first screw thread, the bottom of the lower shell body is provided with a hollow spring fixing rod and a spring installation cavity, the spring fixing rod extends into the spring fixing rod, the upper end of the lower shell body is provided with a second fitting groove, the second fitting groove and the first fitting groove form a rubber ring installation cavity, a truncated cone-shaped steel ball movement groove is provided between the second fitting groove and the spring installation cavity, and the steel ball movement groove is respectively connected with the second fitting groove and the spring installation cavity.

[0010] With the above structure, the second screw thread cooperates with the first screw thread to connect the lower shell of the valve body and the upper shell of the valve body to prevent leakage and achieve a better sealing effect. The spring fixing rod and the spring installation cavity are used to install the valve core spring. The second fitting groove is used to install the O-type rubber ring and prevent the O-type rubber ring from shifting during work, resulting in a weakened sealing effect. The steel ball movement groove facilitates the movement of the steel ball. At the same time, the frustum-shaped steel ball movement groove facilitates the passage of gas during work.

[0011] The valve core spring is arranged in the lower shell body, and the valve core spring is sleeved on the spring fixing rod.

[0012] With the above structure, in the initial state, the valve core spring contacts the steel ball, which prevents gas with lower pressure from passing through. When gas is introduced from the upper shell of the valve body and reaches a certain pressure, the gas pushes the steel ball to squeeze the valve core spring. After the gas is stopped from being introduced, the valve core spring pushes the steel ball back to the initial position.

[0013] The O-type rubber ring is arranged in the rubber ring installation cavity.

[0014] With the above structure, the O-type rubber ring will be deformed to a certain extent due to the extrusion of the steel ball when working, and will fit tightly on the upper shell of the valve body to achieve a sealing effect.

[0015] The steel ball is arranged on the upper inner ring of the valve core spring and the lower inner ring of the O-type rubber ring, and the steel ball respectively contacts the end of the valve core spring and the lower inner ring of the O-type rubber ring.

[0016] With the above structure, when gas is introduced into the steel ball, the gas switch is completed by squeezing the valve core spring and the O-type rubber ring respectively.

[0017] A production process of a spring steel ball valve, the production process steps are as follows: Step 1: Place an order; the production order is issued and the production volume is set according to the order quantity; Step 2: Valve body production and procurement: vulcanization production of sealing rings, injection molding production of shells, and some parts purchased from outside; Step three, assembly and welding: assemble the produced housing, sealing ring and purchased parts to form a spring steel ball valve, and weld the assembled valve body shell; Step 4: Air tightness test: Check air tightness to ensure that it meets the design requirements; Step 5: Full product inspection: For products that pass the air tightness test, we will conduct appearance inspection and size inspection, and the qualified products will be packaged and shipped.

[0018] The equipment used for assembly and welding in the step 3 includes a frame, an electric push rod 2 and a rotating table, the rotating table is arranged in the middle position of the upper end of the frame, and the frame is provided with five moving mechanisms, five vibrating disks, a welding mechanism, a conveyor, two guide discharging mechanisms 1 and three guide discharging mechanisms 2, the five moving mechanisms, five vibrating disks, the welding mechanism, the conveyor, the two guide discharging mechanisms 1 and the three guide discharging mechanisms 2 are all located outside the rotating table, and the moving mechanisms and the vibrating disks are alternately arranged, the positions of the five moving mechanisms, the welding mechanism and the conveyor are distributed in a circle, the five moving mechanisms are respectively provided with a lower shell clamping mechanism, a vertical clamping mechanism 1, a suction cup mechanism, a vertical clamping mechanism 2 and a screwing mechanism, the suction cup mechanism is connected to an external vacuum pump through a pipeline, the discharge port ends of the five vibrating disks are fixedly connected to the guide discharging mechanism 1, the three guide discharging mechanisms 2 and the guide discharging mechanism 1 in turn, a number of circumferentially evenly distributed flipping fixing mechanisms are hinged on the rotating table, the electric push rod 2 is fixed on the frame, and the electric push rod 2 is located below the rotating table and on the right side of the conveyor.

[0019] With the above structure, the staff will place the valve body lower shell, valve body upper shell, valve core spring, steel ball and O-type rubber ring in the corresponding positions of the vibration plate, and then the vibration plate will transport the components inside to the guide discharge mechanism 1 and the guide discharge mechanism 2 at the corresponding positions, and the guide discharge mechanism 1 and the guide discharge mechanism 2 will discharge them in sequence; The lower shell clamping mechanism is driven by the moving mechanism at the corresponding position to move, clamp the five valve body lower shells on the guide discharge mechanism 1 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 1 at the corresponding position moves to discharge the five new valve body lower shells in sequence, and at the same time, the lower shell clamping mechanism drives the five valve body lower shells to move to the top of the flipping fixing mechanism on the rotating table, and continues to move to place the five valve body lower shells on the flipping fixing mechanism, and after completing the clamping and placement, returns to the top of the corresponding guide discharge mechanism 1, waiting for the next clamping of the valve body lower shell, and at the same time, the rotating table rotates to drive the flipping fixing mechanism and the five valve body lower shells thereon to move to the position of the vertical clamping mechanism 1, and the rotating table stops moving. At this time, a flipping fixing mechanism moves to the position of the lower shell clamping mechanism, and the clamping action of the lower shell clamping mechanism is repeated; The vertical clamping mechanism 1 moves under the drive of the moving mechanism at the corresponding position, clamps the five valve core springs on the guide discharge mechanism 2 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 2 at the corresponding position moves to discharge the five new valve core springs in sequence, and at the same time, the vertical clamping mechanism 1 drives the five valve core springs to move to the top of the flip fixing mechanism where the valve body lower shell has been placed, and installs the five valve core springs in the corresponding valve body lower shell, and after the installation and placement is completed, returns to the top of the corresponding guide discharge mechanism 2, waiting for the next clamping and installation of the valve core spring, and at the same time, the rotating table rotates to drive the flip fixing mechanism to move to the position of the suction cup mechanism, and the rotating table stops moving. At this time, a flip fixing mechanism moves to the position of the vertical clamping mechanism 1, and repeats the clamping action of the vertical clamping mechanism 1; The suction cup mechanism moves under the drive of the moving mechanism at the corresponding position, and the external vacuum pump is started. The suction cup mechanism absorbs the five steel balls on the guide discharge mechanism 2 at the corresponding position. After the absorption is completed, the guide discharge mechanism 2 at the corresponding position moves to discharge the five new steel balls in sequence. At the same time, the suction cup mechanism drives the five steel balls to move to the top of the flip fixing mechanism where the valve core spring has been installed, and installs the five steel balls on the valve core spring in the corresponding valve body lower shell. After the installation and placement are completed, it returns to the top of the corresponding guide discharge mechanism 2, waiting for the next absorption and installation of steel balls. At the same time, the rotating table rotates to drive the flip fixing mechanism to move to the position of the vertical clamping mechanism 2, and the rotating table stops moving. At this time, a flip fixing mechanism moves to the position of the suction cup mechanism, and the absorption action of the suction cup mechanism is repeated; The second vertical clamping mechanism moves under the drive of the moving mechanism at the corresponding position, clamps the five O-type rubber rings on the second guide discharging mechanism at the corresponding position, and after the clamping is completed, the second guide discharging mechanism at the corresponding position moves to discharge the five new O-type rubber rings in sequence, and at the same time, the second vertical clamping mechanism drives the five O-type rubber rings to move to the top of the flipping and fixing mechanism where the steel balls have been placed, and installs the five O-type rubber rings on the corresponding lower shell of the valve body, and after the installation and placement are completed, returns to the top of the corresponding second guide discharging mechanism, waiting for the next clamping and installation of the O-type rubber ring, and at the same time, the rotating table rotates to drive the flipping and fixing mechanism to move to the position of the screwing mechanism, and the rotating table stops moving. At this time, a flipping and fixing mechanism moves to the position of the second vertical clamping mechanism, and the clamping action of the second vertical clamping mechanism is repeated; The screwing mechanism moves under the drive of the moving mechanism at the corresponding position, clamps the five valve body upper shells on the guide discharge mechanism 1 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 1 at the corresponding position moves to discharge the five new valve body upper shells in sequence, and at the same time, the screwing mechanism drives the five valve body upper shells to move to the top of the flip fixing mechanism where the O-type rubber ring has been installed, and continues to move to screw the five valve body upper shells on the flip fixing mechanism, and after the screwing is completed, it returns to the top of the corresponding guide discharge mechanism 1, waiting for the next clamping of the valve body upper shell, and at the same time, the rotating table rotates to drive the flip fixing mechanism and the assembled valve body thereon to move to the position of the welding mechanism, and the rotating table stops moving. At this time, a flip fixing mechanism moves to the position of the screwing mechanism, and the screwing mechanism clamping action is repeated; The welding mechanism moves to the top of the screwed valve body and welds the valve body together, then returns to the initial position and waits for the next welding. At the same time, the rotating table rotates to drive the flipping fixing mechanism and the welding valve body to the position of the conveyor. The rotating table stops moving. At this time, a flipping fixing mechanism moves to the position of the welding mechanism and repeats the welding action of the welding mechanism. Then the telescopic end of the second electric push rod moves upward, contacts the flipping fixing mechanism, and flips the flipping fixing mechanism. When the flipping fixing mechanism flips to the maximum angle, the welding valve body thereon leaves the flipping fixing mechanism and falls onto the conveyor and is transported out by the conveyor.

[0020] The rotating table is provided with a circular supporting plate, and a plurality of flip openings and a plurality of blocking grooves are opened on the outer side of the upper end of the circular supporting plate, and the blocking grooves are located on the inner side of the flip openings at corresponding positions. The circular supporting plate is provided with a plurality of wedge-shaped guide plates, and the wedge-shaped guide plates are located on the sides of the flip openings at corresponding positions. The wedge-shaped guide plates are fan-shaped, and the fan shape is hollow.

[0021] With the above structure, the flip opening and the blocking groove are used to install the flip fixing mechanism, and the wedge-shaped guide plate is used to release the flip fixing mechanism from clamping the valve body when the flip fixing mechanism flips.

[0022] The flipping and fixing mechanism comprises a flip plate, a fixing seat 1 and two symmetrically arranged return springs, the flip plate is hinged in the flipping mouth of the circular supporting plate, a baffle is arranged at the end of the flip plate, the baffle is matched with the size of the blocking groove, a triangular lifting plate is arranged in the middle position below the flip plate, one end of the two return springs are fixed under the flip plate, and the two return springs are respectively located on both sides of the lifting plate, and the other ends of the two return springs are fixed under the circular supporting plate, the fixing seat 1 is arranged at the upper end of the flip plate, the fixing seat 1 is provided with five equidistant fixing seats 2, and the fixing seat 1 is slidingly provided with five equidistant sliding plates, the sliding plate and the fixing seat 2 are both provided with semicircular clamping openings, clamping holes are formed between two corresponding positions, and a clamping spring 1 is provided between the side of the sliding plate and the fixing seat 1, two symmetrically arranged pull rods are provided between the five sliding plates, the two pull rods are respectively located at the two ends of the sliding plate, the ends of the two pull rods extend out of the end of the fixing seat 1, and a pull plate is provided between the ends of the two pull rods, and a stretching opening is formed between the pull plate, the end of the fixing seat 1 and the two pull rods.

[0023] When adopting the above structure, when clamping the lower shell of the valve body, the lower shell of the valve body pushes the sliding plate to move, and the sliding plate pushes the clamping spring 1. After the lower shell of the valve body enters, it is clamped between the sliding plate and the fixed seat 2 under the action of the clamping spring 1; the telescopic end of the electric push rod 2 pushes the lifting plate, and the lifting plate pushes the flip plate and the fixed seat 1 thereon to flip. During the flipping process, the pull plate moves away from the fixed seat 1 along the wedge-shaped guide plate at the corresponding position. During the movement, the pull plate pulls the two pull rods to move, and the two pull rods pull the five sliding plates to slide and squeeze the clamping spring 1, thereby loosening the clamping of the welded valve body. After the flipping is completed, the telescopic end of the electric push rod 2 returns to the initial position, and the flip plate returns to the initial position under the action of the two reset springs, and the baffle is used to block the flip plate.

[0024] The guide discharging mechanism comprises a support rod and a bracket, both of which are fixed on the frame, a feeding plate is provided at the upper end of the support rod, the end of the feeding plate is connected to the discharge port of the vibrating plate at the corresponding position, a feeding trough is provided on the feeding plate, two symmetrically arranged guide limit plates are provided on the feeding plate, both of which are located in the feeding trough, a discharging plate is provided on one side of the upper end of the bracket, five equidistant and evenly distributed discharging ports are provided on the upper end of the discharging plate, a U-shaped guide limit plate is provided at the lower end of the discharging plate, and five equidistant and evenly distributed pushing ports are provided on one side of the guide limit plate. , the end of the guide limit plate three is connected to the guide limit plate one, the position and size of the push port one and the discharge port one correspond, an electric push rod one is fixed to the other side of the upper end of the bracket one, a push plate one is provided on the telescopic end of the electric push rod one, and five equidistant and evenly distributed push blocks one are provided on the push plate one, and the position and size of the push port one correspond, and the lower end surface of the push block one is higher than the upper end surface of the guide limit plate three, an electric push rod three is fixed under the bracket one, and a top plate one is fixed on the telescopic end of the electric push rod three, and five equidistant and evenly distributed top blocks one are provided on the top plate one, and the top block one corresponds to the position and size of the discharge port one.

[0025] With the above structure, the vibration plate transports the shell to the feeding plate 1, enters the feeding trough 1, and is guided and transported to the guide limit plate 3 through the guide limit plate 1. The shell is arranged on the guide limit plate 3, and then the telescopic end of the electric push rod 1 drives the push plate 1 to move, and the push plate 1 drives the five push blocks 1 thereon to move, and the five push blocks 1 push the five shells to the corresponding position of the discharge port 1. When pushing in, the end face of the push block 1 does not enter the discharge port 1, and then the telescopic end of the electric push rod 3 drives the ejection plate 1 to move, and the ejection plate 1 drives the five ejection blocks 1 to move, and lifts the five shells for easy clamping.

[0026] The guide discharge mechanism 2 comprises a support rod 2 and a bracket 2, both of which are fixed on the frame, a feeding plate 2 is provided on the upper end of the support rod 2, a feeding trough 2 is provided on the feeding plate 2, the feeding plate 2 is provided with an inclined feeding channel and two symmetrically arranged guide limit plates 2, the feeding channel is located in the middle position below the two guide limit plates 2, a U-shaped guide limit plate 4 is provided at the end of the feeding plate 2, five equally spaced pushing ports 2 are provided on one side of the guide limit plate 4, the upper end surface of the guide limit plate 4 is flush with the upper end surface of the guide limit plate 2, a discharge plate 2 is provided on one side of the upper end of the bracket 2, and a discharge plate 1 Five equidistant and evenly distributed discharge ports 2 are provided at the upper end, and the push ports 2 correspond to the position and size of the discharge ports 2; an electric push rod 4 is fixed to the other side of the upper end of the bracket 2, and a push plate 2 is fixed to the telescopic end of the electric push rod 4, and five equidistant and evenly distributed push blocks 2 are provided on the push plate 2, and the push blocks 2 correspond to the position and size of the push ports 2; the lower end surface of the push block 2 is higher than the upper end surface of the guide limit plate 4; an electric push rod 5 is fixed under the bracket 2, and a top plate 2 is fixed to the telescopic end of the electric push rod 5, and five equidistant and evenly distributed top blocks 2 are provided on the top plate 2, and the top blocks 2 correspond to the position and size of the discharge port 2.

[0027] With the above structure, the vibration plate transports the shell to the feeding plate 2, enters the feeding trough 2, is lifted by the feeding channel, and is transported to the guide limit plate 4 through the two guide limit plates 2. The components are arranged on the guide limit plate 4, and then the telescopic end of the electric push rod 4 drives the push plate 2 to move, and the push plate 2 drives the five push blocks 2 thereon to move, and the five push blocks 2 push the five components to move toward the discharge port 2. When pushing in, the end face of the push block 2 does not enter the discharge port 2, and then the telescopic end of the electric push rod 5 drives the ejection plate 2 to move, and the ejection plate 2 drives the five ejection blocks 2 to move, and lifts the five components for easy clamping.

[0028] The moving mechanism includes a moving frame, which is fixed on the frame. A moving seat 1 is slidably provided on the upper end of the side of the moving frame. A horizontally arranged electric push rod 6 is fixed on the moving frame. The electric push rod 6 is fixedly connected to the moving seat 1. A moving seat 2 is slidably provided on the moving seat 1. A vertically arranged electric push rod 7 is fixed on the moving seat 1. The telescopic end of the electric push rod 7 is fixedly connected to the moving seat 2.

[0029] With the above structure, the telescopic end of the electric push rod 6 drives the moving seat 1 to move and slide on the moving frame, the moving seat 1 drives the electric push rod 7 thereon to move, and the telescopic end of the electric push rod 7 drives the moving seat 2 to slide on the moving seat 1.

[0030] The lower shell clamping mechanism includes an installation support plate 1, an electric push rod 8, a fixed plate and a driving motor 1. The installation support plate is fixed on a moving seat 2 at a corresponding position. The electric push rod 8 is arranged on the installation support plate. The telescopic end of the electric push rod 8 is fixedly connected to the fixed plate. The driving motor 1 is fixed to the side of the fixed plate. The fixed plate is slidingly arranged on the installation support plate. Five equidistant and evenly distributed clamping claws 1 are arranged on the fixed plate. A transmission shaft 1 is rotatably arranged on the fixed plate. The transmission shaft 1 is transmission-connected to the output shaft of the driving motor 1. The transmission shaft 1 is transmission-connected to the five clamping claws 1 respectively. A clamping claw hole matching the size of the lower shell of the valve body is opened on the clamping claw 1.

[0031] With the above structure, the telescopic end of the electric push rod 8 drives the fixed plate to move, the fixed plate drives the five clamping claws to move, the output shaft of the driving motor 1 drives the transmission shaft 1 to move, and the transmission shaft 1 drives the five clamping claws to move to complete the clamping action.

[0032] The vertical clamping mechanism 1 includes a sliding support plate, a driving motor 2, a mounting support plate 2 and an electric push rod 9, the sliding support plate is fixed on the moving seat 2 at the corresponding position, the electric push rod 9 is fixed on the sliding support plate, the driving motor 2 is fixed on the side of the mounting support plate 2, the mounting support plate 2 is slidably arranged on the sliding support plate, the mounting support plate 2 is fixedly connected to the telescopic end of the electric push rod 9, the mounting support plate 2 is provided with five equidistant and evenly distributed clamping claws 2, the mounting support plate 2 is rotatably provided with a transmission shaft 2, the transmission shaft 2 is transmission-connected to the output shaft of the driving motor 2, and the transmission shaft 2 is transmission-connected to the five clamping claws 2; The structure of the second vertical clamping mechanism is the same as that of the first vertical clamping mechanism.

[0033] With the above structure, the telescopic end of the electric push rod 9 drives the mounting support plate 2 to slide on the sliding support plate, the mounting support plate 2 drives the five clamping claws 2 to move, the output shaft of the driving motor 2 drives the transmission shaft 2 to move, and the transmission shaft 2 drives the five clamping claws 2 to move to complete the clamping action.

[0034] The suction cup mechanism includes a mounting support plate three, a movable plate and an electric push rod ten. The mounting support plate three is fixed on a movable seat two at a corresponding position. The electric push rod ten is fixed on the mounting support plate three. The telescopic end of the electric push rod ten is fixedly connected to the movable plate. The movable plate is slidably arranged on the mounting support plate three. A connecting rod and an exhaust pipe are arranged on the movable plate. Five hollow suction cups are evenly spaced and evenly distributed on the connecting rod. The five suction cups are connected to the exhaust pipe by pipelines. The exhaust pipe is connected to an external vacuum pump.

[0035] With the above structure, the telescopic end of the electric push rod 10 drives the moving plate to slide on the mounting support plate 3, the moving plate drives the exhaust pipe and the connecting rod to move, the five suction cups are in contact with the steel balls, the external vacuum pump sucks air, and the suction cups adsorb the steel balls at the corresponding positions.

[0036] The screwing mechanism comprises a mounting support plate four, a screwing mounting plate and an electric push rod eleven, the mounting support plate four is fixed on a moving seat two at a corresponding position, the electric push rod eleven is fixed on the mounting support plate four, the screwing mounting plate is slidably arranged on the mounting support plate four, and the screwing mounting plate is fixedly connected to the telescopic end of the electric push rod eleven, the screwing mounting plate is provided with two symmetrically arranged rack slide rails, the rack slide rails are slidably provided with a slide seat, the slide seat is fixed with a screwing rack, an electric screw rod part is provided on one side of the upper end of the screwing mounting plate, the screw rod slider of the electric screw rod part is fixedly connected to one of the slide seats, five equidistant and evenly distributed bearings are provided on the screwing mounting plate, the inner ring of the bearing is fixed with a screwing shaft, the upper end of the screwing shaft is provided with a screwing gear, the five screwing gears are meshed with the two screwing racks, the lower end of the screwing shaft is fixed with a screwing disk, two symmetrically arranged clamping blocks are slidably provided in the screwing disk, and clamping spring two is provided between the clamping block and the screwing disk.

[0037] With the above structure, the telescopic end of the electric push rod eleven drives the screw-on mounting plate to slide on the mounting support plate four, and the mounting support plate four drives the five screw-on disks to move. During clamping, the screw-on disk is located directly above the upper shell of the valve body and then moves downward. After the upper shell of the valve body enters the screw-on disk, the two clamping blocks are squeezed. The two clamping blocks cooperate with the clamping springs two at the corresponding positions to clamp the upper shell of the valve body. The electric screw rod member drives the screw slider thereon to move, and the screw slider drives the slide seat to move. The slide seat drives one of the screw-on racks to slide on the rack slide rail, and the screw-on rack drives five screw-on gears to move. The screw-on gear drives the screw shaft at the corresponding position to move, and the screw shaft drives the screw disk at the corresponding position to move. The screw gear and the slide seat slide on the other screw rack, and the two screw racks cooperate to keep the clamping stable and prevent deviation.

[0038] The welding mechanism comprises a base, which is fixed on a frame and on which five ultrasonic welders are arranged at equal distances.

[0039] With the above structure, the ultrasonic welder moves, the welding head contacts the valve body, and then welding begins. Under the action of ultrasonic waves, the lower shell of the valve body and the upper shell of the valve body are welded together to enhance the sealing effect.

[0040] Compared with the prior art, the spring steel ball valve and its production process have the following advantages: This spring steel ball valve has a stable structure and good sealing performance, and can meet the requirements of stable operation under different working conditions.

[0041] This production process has a high degree of automation, high production efficiency and good product yield. The assembly and welding equipment used in this production process can perform batch assembly, welding and product output of spring steel ball valves through the automated operations of sequential discharging, sequential clamping assembly, screwing valve body, valve body welding and product flipping output. The vibration plate cooperates with the guide discharging mechanism 1 and the guide discharging mechanism 2 at the corresponding position to convey the valve body parts, and the valve body parts are sequentially discharged to facilitate clamping and assembly. The moving mechanism cooperates with the lower shell clamping mechanism, the vertical clamping mechanism 1, the suction cup mechanism, the vertical clamping mechanism 2 and the screwing mechanism respectively to accurately and stably clamp and transport the valve body parts in batches to achieve batch assembly. The screwing mechanism and the flipping fixing mechanism screw the lower shell of the valve body and the upper shell of the valve body to increase the structural stability and good sealing. The welding mechanism cooperates with the flipping fixing mechanism to perform batch welding with high welding efficiency; the flipping fixing mechanism cooperates with the electric push rod 2 and the rotating table to release the clamping and convey the valve body, and the stability of the valve body structure is preliminarily detected during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a three-dimensional structural schematic diagram of the assembly and welding equipment in the present invention.

[0043] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating table in the present invention.

[0044] Figure 3 It is a structural schematic diagram of the flipping and fixing mechanism in the present invention.

[0045] Figure 4 It is a structural schematic diagram of the second guiding and discharging mechanism in the present invention.

[0046] Figure 5 It is a structural schematic diagram of the guiding and discharging mechanism 1 in the present invention.

[0047] Figure 6 It is a structural schematic diagram of the mobile mechanism in the present invention.

[0048] Figure 7 It is a structural schematic diagram of the lower shell clamping mechanism in the present invention.

[0049] Figure 8 It is a structural schematic diagram of the vertical clamping mechanism 1 in the present invention.

[0050] Fig. 9 It is a structural schematic diagram of the suction cup mechanism in the present invention.

[0051] Fig.10 It is a schematic diagram of the lower structure of the screwing mechanism in the present invention.

[0052] Fig.11 It is a schematic diagram of the upper structure of the screwing mechanism in the present invention.

[0053] Fig.12 It is a structural schematic diagram of the welding mechanism in the present invention.

[0054] Fig.13 It is a three-dimensional structural schematic diagram of the spring steel ball valve in the present invention.

[0055] Fig.14 It is a schematic diagram of the exploded structure of the spring steel ball valve in the present invention.

[0056] Fig.15 It is a schematic cross-sectional structural diagram of the upper shell in the present invention.

[0057] Fig.16 It is a schematic cross-sectional structural diagram of the lower shell in the present invention.

[0058] Fig.17 It is a schematic diagram of the production process of the present invention.

[0059] In the figure, 1, vibrating plate; 2, moving mechanism; 3, lower shell clamping mechanism; 4, guide discharge mechanism 1; 5, vertical clamping mechanism 1; 6, flipping fixing mechanism; 7, suction cup mechanism; 8, vertical clamping mechanism 2; 9, screwing mechanism; 10, welding mechanism; 11, frame; 12, conveyor; 13, guide discharge mechanism 2; 14, rotating table; 15, flipping mouth; 16, wedge-shaped guide plate; 17, blocking groove; 18, flipping plate; 19, fixed seat 1; 20, sliding plate; 21, lifting plate; 22, baffle plate; 23, complex 24. Pull plate; 25. Fixed seat 2; 26. Pull rod; 27. Support rod 1; 28. Feed plate 1; 29. ​​Guide limit plate 1; 30. Push plate 1; 31. Electric push rod 1; 32. Electric push rod 2; 33. Ejector plate 1; 34. Electric push rod 3; 35. Bracket 1; 36. Support rod 2; 37. Feed plate 2; 38. Guide limit plate 2; 39. Electric push rod 4; 40. Push plate 2; 41. Ejector plate 2; 42. Bracket 2; 43. Electric push rod 5; 44. Electric push rod 6; 45. Electric push rod seven; 46, moving frame; 47, fixed plate; 48, transmission shaft one; 49, electric push rod eight; 50, driving motor one; 51, clamping claw one; 52, transmission shaft two; 53, rack slide rail; 54, clamping claw two; 55, driving motor two; 56, electric push rod nine; 57, sliding support plate; 58, electric push rod ten; 59, exhaust pipe; 60, connecting rod; 61, suction cup; 62, screwing disk; 63, clamping block; 64, screwing mounting plate; 65, electric push rod eleven; 66, electric screw rod; 67, slide seat ; 68. Screw-on rack; 69. Screw-on gear; 70. Ultrasonic welder; 71. Base; 72. Upper shell of valve body; 73. O-ring; 74. Steel ball; 75. Valve core spring; 76. Lower shell of valve body; 77. Upper shell body; 78. Screw-on thread one; 79. Rubber mounting hole; 80. Inverted skirt one; 81. Fitting groove one; 82. Upper shell air pipe; 83. Inverted skirt two; 84. Lower shell body; 85. Spring fixing rod; 86. Spring mounting cavity; 87. Steel ball movement groove; 88. Fitting groove two; 89. Lower shell air pipe. DETAILED DESCRIPTION

[0060] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0061] like Figure 13-Figure 15As shown, the spring steel ball valve comprises a valve body lower shell 76 and a valve body upper shell 72. The valve body lower shell 76 is threadedly connected to the valve body upper shell 72. The internal space formed by the valve body lower shell 76 and the valve body upper shell 72 is provided with a valve core spring 75, a steel ball 74 and an O-type rubber ring 73 in sequence from bottom to top. The valve core spring 75 is arranged in the valve body lower shell 76, the O-type rubber ring 73 is arranged in the valve body upper shell 72, and the steel ball 74 respectively abuts against the end of the valve core spring 75 and the lower inner ring of the O-type rubber ring 73.

[0062] When gas is introduced from the valve body lower shell 76, the gas pushes the steel ball 74 to squeeze the O-type rubber ring 73, the steel ball 74 fits tightly against the O-type rubber ring 73, and the O-type rubber ring 73 fits tightly against the valve body upper shell 72, blocking the passage of gas; when gas is introduced from the valve body upper shell 72 and reaches a certain pressure, the gas pushes the steel ball 74 to squeeze the valve core spring 75, and the steel ball 74 leaves the O-type rubber ring 73 and no longer conflicts with the O-type rubber ring 73, the gas passes through the gap between the steel ball 74 and the O-type rubber ring 73, and when gas is no longer introduced, the valve core spring 75 pushes the steel ball 74 back to its initial position.

[0063] The valve body upper shell 72 includes an upper shell body 77 and an upper shell air pipe 82. The upper shell air pipe 82 is located above the upper shell body 77. The inner ring of the upper shell body 77 is provided with a screw thread 78. The bottom of the upper shell body 77 is provided with a rubber mounting hole 79 and a fitting groove 81. The fitting groove 81 matches the shape and size of the O-ring 73. The fitting groove 81 is located below the rubber mounting hole 79 and is connected to the rubber mounting hole 79. The upper shell air pipe 82 is hollow inside and is connected to the fitting groove 81. A plurality of inverted skirts 80 are provided on the upper shell air pipe 82.

[0064] The screw thread 78 is used to connect the valve body upper shell 72 and the valve body lower shell 76, so that the valve body upper shell 72 and the valve body lower shell 76 fit tightly and ensure airtightness to prevent leakage. The rubber mounting hole 79 is used to install and fix the O-type rubber ring 73. The fitting groove 81 is used to fit the O-type rubber ring 73 to prevent leakage during operation and achieve a better sealing effect. A plurality of inverted skirts 80 are convenient for connection with external pipes.

[0065] The valve body lower shell 76 includes a lower shell body 84 and a lower shell air pipe 89 with a middle hole. The lower shell air pipe 89 is located below the lower shell body 84. The outer side of the lower shell body 84 is provided with a second screw thread matching the first screw thread 78. The bottom of the lower shell body 84 is provided with a hollow spring fixing rod 85 and a spring installation cavity 86. The spring fixing rod 85 extends into the spring fixing rod 85. The upper end of the lower shell body 84 is provided with a second fitting groove 88. The second fitting groove 88 and the first fitting groove 81 form a rubber ring installation cavity. A truncated cone-shaped steel ball movement groove 87 is provided between the second fitting groove 88 and the spring installation cavity 86. The steel ball movement groove 87 is respectively connected with the second fitting groove 88 and the spring installation cavity 86.

[0066] The second screw thread cooperates with the first screw thread 78 to connect the valve body lower shell 76 and the valve body upper shell 72 to prevent leakage and make the sealing effect better. The spring fixing rod 85 and the spring installation cavity 86 are used to install the valve core spring 75. The second fitting groove 88 is used to install the O-type rubber ring 73 and prevent the O-type rubber ring 73 from shifting during work, resulting in a weakened sealing effect. The steel ball movement groove 87 facilitates the movement of the steel ball 74. At the same time, the truncated cone-shaped steel ball movement groove 87 facilitates the passage of gas during work.

[0067] The valve core spring 75 is arranged in the lower shell body 84, and the valve core spring 75 is sleeved on the spring fixing rod 85. In the initial state, the valve core spring 75 abuts against the steel ball 74, so that the gas with a relatively low pressure cannot pass through. When the gas is introduced from the valve body upper shell 72 and reaches a certain pressure, the gas pushes the steel ball 74 to squeeze the valve core spring 75. After the gas is stopped, the valve core spring 75 pushes the steel ball 74 back to the initial position.

[0068] The O-type rubber ring 73 is arranged in the rubber ring installation cavity. When the O-type rubber ring 73 is working, it will be squeezed by the steel ball 74 to produce a certain deformation, and fit closely on the valve body upper shell 72 to achieve a sealing effect.

[0069] The steel ball 74 is arranged on the inner ring of the upper end of the valve core spring 75 and the inner ring of the lower end of the O-type rubber ring 73, and the steel ball 74 respectively contacts the end of the valve core spring 75 and the inner ring of the lower end of the O-type rubber ring 73. When the gas is passed into the steel ball 74, the valve core spring 75 and the O-type rubber ring 73 are squeezed to complete the action of the gas switch.

[0070] like Figure 1-Figure 12 and Fig.17 As shown, the production process of the spring steel ball valve, the production process steps are as follows: Step 1: Place an order; the production order is issued and the production volume is set according to the order quantity; Step 2: Valve body production and procurement: vulcanization production of sealing rings, injection molding production of shells, and some parts purchased from outside; Step three, assembly and welding: assemble the produced housing, sealing ring and purchased parts to form a spring steel ball valve, and weld the assembled valve body shell; Step 4: Air tightness test: Check air tightness to ensure that it meets the design requirements; Step 5: Full product inspection: For products that pass the air tightness test, we will conduct appearance inspection and size inspection, and the qualified products will be packaged and shipped.

[0071] The equipment used for assembly and welding in step three includes a frame 11, an electric push rod 2 32 and a rotating table 14. The rotating table 14 is arranged at the middle position of the upper end of the frame 11. The frame 11 is provided with five moving mechanisms 2, five vibration plates 1, a welding mechanism 10, a conveyor 12, two guide discharge mechanisms 1 4 and three guide discharge mechanisms 2 13. The five moving mechanisms 2, five vibration plates 1, the welding mechanism 10, the conveyor 12, the two guide discharge mechanisms 1 4 and the three guide discharge mechanisms 2 13 are all located on the outside of the rotating table 14, and the moving mechanisms 2 and the vibration plates 1 are arranged alternately. The five moving mechanisms 2, the welding mechanism 1 0 and the conveyor 12 are distributed in a circle, the five moving mechanisms 2 are respectively provided with a lower shell clamping mechanism 3, a vertical clamping mechanism one 5, a suction cup mechanism 7, a vertical clamping mechanism two 8 and a screwing mechanism 9, the suction cup mechanism 7 is connected to an external vacuum pump through a pipeline, the discharge port ends of the five vibrating disks 1 are fixedly connected with a guide discharge mechanism one 4, three guide discharge mechanisms two 13 and a guide discharge mechanism one 4 in turn, a plurality of circumferentially evenly distributed flipping fixing mechanisms 6 are hinged on the rotating table 14, an electric push rod two 32 is fixed on the frame 11, and the electric push rod two 32 is located below the rotating table 14 and on the right side of the conveyor 12.

[0072] The staff places the valve body lower shell 76, the valve body upper shell 72, the valve core spring 75, the steel ball 74 and the O-type rubber ring 73 in the corresponding positions of the vibration plate 1, and then the vibration plate 1 conveys the components therein to the corresponding positions of the guide discharge mechanism 1 4 and the guide discharge mechanism 2 13, and the guide discharge mechanism 1 4 and the guide discharge mechanism 2 13 discharge the components in sequence; The lower shell clamping mechanism 3 is driven by the moving mechanism 2 at the corresponding position to move, clamp the five valve body lower shells 76 on the guide discharge mechanism 4 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 4 at the corresponding position moves to discharge five new valve body lower shells 76 in sequence, and at the same time, the lower shell clamping mechanism 3 drives the five valve body lower shells 76 to move to the top of the flipping and fixing mechanism 6 on the rotating table 14, and continues to move to place the five valve body lower shells 76 on the flipping and fixing mechanism 6, and after completing the clamping and placement, returns to the top of the corresponding guide discharge mechanism 4, waiting for the next clamping of the valve body lower shell 76, and at the same time, the rotating table 14 rotates to drive the flipping and fixing mechanism 6 and the five valve body lower shells 76 thereon to move to the position of the vertical clamping mechanism 5, and the rotating table 14 stops moving. At this time, a flipping and fixing mechanism 6 moves to the position of the lower shell clamping mechanism 3, and the clamping action of the lower shell clamping mechanism 3 is repeated; The vertical clamping mechanism 1 5 moves under the drive of the moving mechanism 2 at the corresponding position, clamps the five valve core springs 75 on the guide discharge mechanism 2 13 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 2 13 at the corresponding position moves to discharge five new valve core springs 75 in sequence, and at the same time, the vertical clamping mechanism 1 5 drives the five valve core springs 75 to move to the top of the flip fixing mechanism 6 where the valve body lower shell 76 has been placed, and installs the five valve core springs 75 in the corresponding valve body lower shell 76, and after the installation and placement is completed, returns to the top of the corresponding guide discharge mechanism 2 13, waiting for the next clamping and installation of the valve core spring 75, and at the same time, the rotating table 14 rotates to drive the flip fixing mechanism 6 to move to the position of the suction cup mechanism 7, and the rotating table 14 stops moving. At this time, one flip fixing mechanism 6 moves to the position of the vertical clamping mechanism 1 5, and the clamping action of the vertical clamping mechanism 1 5 is repeated; The suction cup mechanism 7 moves under the drive of the moving mechanism 2 at the corresponding position, and the external vacuum pump is started. The suction cup mechanism 7 absorbs the five steel balls 74 on the guide discharge mechanism 13 at the corresponding position. After the absorption is completed, the guide discharge mechanism 13 at the corresponding position moves to discharge the five new steel balls 74 in sequence. At the same time, the suction cup mechanism 7 drives the five steel balls 74 to move to the top of the flip fixing mechanism 6 where the valve core spring 75 has been installed, and installs the five steel balls 74 on the valve core spring 75 in the corresponding valve body lower shell 76. After the installation and placement are completed, it returns to the top of the corresponding guide discharge mechanism 13, waiting for the next absorption and installation of the steel balls 74. At the same time, the rotating table 14 rotates to drive the flip fixing mechanism 6 to move to the position of the vertical clamping mechanism 8, and the rotating table 14 stops moving. At this time, a flip fixing mechanism 6 moves to the position of the suction cup mechanism 7, and the absorption action of the suction cup mechanism 7 is repeated; The vertical clamping mechanism 2 8 moves under the drive of the moving mechanism 2 at the corresponding position, clamps the five O-type rubber rings 73 on the guide discharge mechanism 2 13 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 2 13 at the corresponding position moves to discharge five new O-type rubber rings 73 in sequence, and at the same time, the vertical clamping mechanism 2 8 drives the five O-type rubber rings 73 to move to the top of the flipping and fixing mechanism 6 where the steel ball 74 has been placed, and installs the five O-type rubber rings 73 on the corresponding valve body lower shell 76, and after the installation and placement is completed, it returns to the top of the corresponding guide discharge mechanism 2 13, waiting for the next clamping and installation of the O-type rubber ring 73, and at the same time, the rotating table 14 rotates to drive the flipping and fixing mechanism 6 to move to the position of the screwing mechanism 9, and the rotating table 14 stops moving. At this time, one flipping and fixing mechanism 6 moves to the position of the vertical clamping mechanism 2 8, and the clamping action of the vertical clamping mechanism 2 8 is repeated; The screwing mechanism 9 moves under the drive of the moving mechanism 2 at the corresponding position, clamps the five valve body upper shells 72 on the guide discharge mechanism 4 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 4 at the corresponding position moves to discharge five new valve body upper shells 72 in sequence, and at the same time, the screwing mechanism 9 drives the five valve body upper shells 72 to move to the top of the flipping and fixing mechanism 6 where the O-type rubber ring 73 has been installed, and continues to move, screwing the five valve body upper shells 72 on the flipping and fixing mechanism 6, and after the screwing is completed, returns to the top of the corresponding guide discharge mechanism 4, waiting for the next clamping of the valve body upper shell 72, and at the same time, the rotating table 14 rotates to drive the flipping and fixing mechanism 6 and the assembled valve body thereon to move to the position of the welding mechanism 10, and the rotating table 14 stops moving. At this time, one flipping and fixing mechanism 6 moves to the position of the screwing mechanism 9, and the clamping action of the screwing mechanism 9 is repeated; The welding mechanism 10 moves to the top of the screwed valve body and welds the valve bodies together, then returns to the initial position and waits for the next welding. At the same time, the rotating table 14 rotates to drive the flipping fixing mechanism 6 and the welding valve body to the position of the conveyor 12. The rotating table 14 stops moving. At this time, a flipping fixing mechanism 6 moves to the position of the welding mechanism 10, and the welding action of the welding mechanism 10 is repeated. Then the telescopic end of the electric push rod 2 32 moves upward, contacts the flipping fixing mechanism 6, and flips the flipping fixing mechanism 6. When the flipping fixing mechanism 6 flips to the maximum angle, the welding valve body thereon leaves the flipping fixing mechanism 6 and falls onto the conveyor 12, and is transported out by the conveyor 12.

[0073] A circular supporting plate is provided on the rotating table 14, and a plurality of flip openings 15 and a plurality of blocking grooves 17 are opened on the outer side of the upper end of the circular supporting plate, and the blocking grooves 17 are located on the inner side of the flip openings 15 at the corresponding positions. A plurality of wedge-shaped guide plates 16 are provided on the circular supporting plate, and the wedge-shaped guide plates 16 are located on the sides of the flip openings 15 at the corresponding positions, and the wedge-shaped guide plates 16 are fan-shaped and hollow in the fan shape.

[0074] The flip opening 15 and the blocking groove 17 are used for installing the flip fixing mechanism 6 , and the wedge-shaped guide plate 16 is used for releasing the clamping of the flip fixing mechanism 6 on the valve body when the flip fixing mechanism 6 flips.

[0075] The flipping and fixing mechanism 6 includes a flipping plate 18, a fixing seat 19 and two symmetrically arranged return springs 23. The flipping plate 18 is hinged in the flipping opening 15 of the circular supporting plate. A baffle 22 is provided at the end of the flipping plate 18. The baffle 22 matches the size of the blocking groove 17. A triangular lifting plate 21 is provided in the middle position below the flipping plate 18. One end of the two return springs 23 are fixed below the flipping plate 18, and the two return springs 23 are respectively located on both sides of the lifting plate 21. The other ends of the two return springs 23 are fixed below the circular supporting plate. The fixing seat 19 is arranged at the upper end of the flipping plate 18. Five equidistant springs are provided on the fixing seat 19. A fixed seat 25 is evenly distributed, and five sliding plates 20 are slidably arranged on the fixed seat 19. The sliding plate 20 and the fixed seat 25 are both provided with semicircular clamping openings, and a clamping hole is formed between two corresponding positions, and a clamping spring 1 is provided between the side of the sliding plate 20 and the fixed seat 19. Two symmetrically arranged pull rods 26 are provided between the five sliding plates 20, and the two pull rods 26 are respectively located at both ends of the sliding plate 20. The ends of the two pull rods 26 extend out of the end of the fixed seat 19, and a pull plate 24 is provided between the ends of the two pull rods 26, and a stretching opening is formed between the pull plate 24, the end of the fixed seat 19 and the two pull rods 26.

[0076] When the valve body lower shell 76 is clamped, the valve body lower shell 76 pushes the sliding plate 20 to move, and the sliding plate 20 pushes the clamping spring 1. After the valve body lower shell 76 enters, it is clamped between the sliding plate 20 and the fixing seat 2 25 under the action of the clamping spring 1. The telescopic end of the electric push rod 23 pushes the lifting plate 21, and the lifting plate 21 pushes the flip plate 18 and the fixed seat 19 thereon to flip. During the flipping process, the pull plate 24 moves along the wedge-shaped guide plate 16 at the corresponding position away from the fixed seat 19. During the movement, the pull plate 24 pulls the two pull rods 26 to move, and the two pull rods 26 pull the five sliding plates 20 to slide and squeeze the clamping spring 1, thereby loosening the clamping of the welded valve body. After the flipping is completed, the telescopic end of the electric push rod 23 returns to the initial position, and the flip plate 18 returns to the initial position under the action of the two reset springs 23, and the baffle 22 is used to block the flip plate 18.

[0077] The guide discharging mechanism 14 includes a support rod 127 and a bracket 135, both of which are fixed on the frame 11. A feeding plate 28 is provided at the upper end of the support rod 27, and the end of the feeding plate 28 is connected to the discharge port of the vibration plate 1 at the corresponding position. A feeding trough 1 is provided on the feeding plate 28, and two symmetrically arranged guide limit plates 29 are provided on the feeding plate 28. The two guide limit plates 29 are both located in the feeding trough 1. A discharging plate 1 is provided on one side of the upper end of the bracket 35, and five equidistant and evenly distributed discharging ports 1 are provided on the upper end of the discharging plate 1. A U-shaped guide limit plate 3 is provided at the lower end of the discharging plate, and five equidistant and evenly distributed pusher ports 1 are provided on one side of the guide limit plate 3. Mouth one, the end of the guide limit plate three is connected to the guide limit plate 29, the position and size of the pushing mouth one corresponds to the discharge mouth one, an electric push rod 31 is fixed to the other side of the upper end of the bracket 35, and a pushing plate 30 is provided on the telescopic end of the electric push rod 31, and five equidistant and evenly distributed pushing blocks 1 are provided on the pushing plate 30, and the pushing block 1 corresponds to the position and size of the pushing mouth one, and the lower end surface of the pushing block 1 is higher than the upper end surface of the guide limit plate three, an electric push rod 34 is fixed under the bracket 35, and a top plate 33 is fixed on the telescopic end of the electric push rod 34, and five equidistant and evenly distributed top blocks 1 are provided on the top plate 33, and the top block 1 corresponds to the position and size of the discharge mouth one.

[0078] The vibration plate 1 conveys the shell to the feeding plate 28, enters the feeding trough 1, and is guided and conveyed to the guide limit plate 3 by the guide limit plate 29. The shell is arranged on the guide limit plate 3, and then the telescopic end of the electric push rod 31 drives the push plate 30 to move, and the push plate 30 drives the five push blocks 1 thereon to move, and the five push blocks 1 push the five shells to move toward the discharge port 1 at the corresponding position. When pushing in, the end face of the push block 1 does not enter the discharge port 1, and then the telescopic end of the electric push rod 34 drives the ejection plate 33 to move, and the ejection plate 33 drives the five ejection blocks 1 to move, and lifts the five shells for easy clamping.

[0079] The guide discharging mechanism 13 includes a support rod 36 and a bracket 42, both of which are fixed on the frame 11. A feeding plate 37 is provided on the upper end of the support rod 36, and a feeding trough 2 is provided on the feeding plate 37. The feeding plate 37 is provided with an inclined feeding channel and two symmetrically arranged guide limit plates 38. The feeding channel is located in the middle position below the two guide limit plates 38. A U-shaped guide limit plate 4 is provided at the end of the feeding plate 37. Five equally spaced push ports 2 are provided on one side of the guide limit plate 4. The upper end surface of the guide limit plate 4 is flush with the upper end surface of the guide limit plate 2 38. A discharging plate 2 is provided on one side of the upper end of the bracket 42. Five equidistant and evenly distributed discharge ports 2 are provided at the upper end of the discharge plate 1, and the push ports 2 correspond to the position and size of the discharge ports 2. An electric push rod 43 is fixed to the other side of the upper end of the bracket 2 42, and a push plate 2 40 is fixed to the telescopic end of the electric push rod 43, and five equidistant and evenly distributed push blocks 2 are provided on the push plate 2 40, and the push blocks 2 correspond to the position and size of the push ports 2. The lower end surface of the push block 2 is higher than the upper end surface of the guide limit plate 4, and an electric push rod 5 43 is fixed below the bracket 2 42, and a top plate 2 41 is fixed to the telescopic end of the electric push rod 5 43, and five equidistant and evenly distributed top blocks 2 are provided on the top plate 2 41, and the top blocks 2 correspond to the position and size of the discharge port 2.

[0080] The vibrating plate 1 transports the shell to the feeding plate 2 37, enters the feeding trough 2, is lifted by the feeding channel, and is transported to the guide limit plate 4 through two guide limit plates 2 38. The components are arranged on the guide limit plate 4, and then the telescopic end of the electric push rod 4 39 drives the push plate 2 40 to move, and the push plate 2 40 drives the five push blocks 2 thereon to move, and the five push blocks 2 push the five components to move toward the discharge port 2. When pushing in, the end face of the push block 2 does not enter the discharge port 2, and then the telescopic end of the electric push rod 5 43 drives the ejector plate 2 41 to move, and the ejector plate 2 41 drives the five ejector blocks 2 to move, and lifts the five components for easy clamping.

[0081] The moving mechanism 2 includes a moving frame 46, which is fixed on the frame 11. A moving seat 1 is slidably provided on the upper end of the side of the moving frame 46. A horizontally arranged electric push rod 6 44 is fixed on the moving frame 46. The electric push rod 6 44 is fixedly connected to the moving seat 1. A moving seat 2 is slidably provided on the moving seat 1. A vertically arranged electric push rod 7 45 is fixed on the moving seat 1. The telescopic end of the electric push rod 6 44 drives the moving seat 1 to move and slide on the moving frame 46. The moving seat 1 drives the electric push rod 7 45 thereon to move. The telescopic end of the electric push rod 7 45 drives the moving seat 2 to slide on the moving seat 1.

[0082] The lower shell clamping mechanism 3 includes an installation support plate 1, an electric push rod 849, a fixed plate 47 and a driving motor 150. The installation support plate is fixed on a movable seat 2 at a corresponding position. The electric push rod 849 is arranged on the installation support plate. The telescopic end of the electric push rod 849 is fixedly connected to the fixed plate 47. The driving motor 150 is fixed to the side of the fixed plate 47. The fixed plate 47 is slidably arranged on the installation support plate. Five equidistant and evenly distributed clamping claws 151 are arranged on the fixed plate 47. A transmission shaft 148 is rotatably arranged on the fixed plate 47. The transmission shaft 148 is transmission-connected to the output shaft of the driving motor 50. The transmission shaft 148 is transmission-connected to the five clamping claws 51 respectively. The clamping claw holes matching the size of the lower shell 76 of the valve body are opened on the clamping claws 151. The telescopic end of the electric push rod 849 drives the fixed plate 47 to move, the fixed plate 47 drives the five clamping claws 51 to move, the output shaft of the driving motor 50 drives the transmission shaft 48 to move, and the transmission shaft 48 drives the five clamping claws 51 to move to complete the clamping.

[0083] The vertical clamping mechanism 1 5 includes a sliding support plate 57, a driving motor 2 55, a mounting support plate 2 and an electric push rod 9 56. The sliding support plate 57 is fixed on the moving seat 2 at the corresponding position, the electric push rod 9 56 is fixed on the sliding support plate 57, the driving motor 2 55 is fixed on the side of the mounting support plate 2, the mounting support plate 2 is slidably arranged on the sliding support plate 57, the mounting support plate 2 is fixedly connected to the telescopic end of the electric push rod 9 56, five equidistant and evenly distributed clamping claws 2 54 are provided on the mounting support plate 2, and a transmission shaft 2 52 is rotatably provided on the mounting support plate 2, the transmission shaft 2 52 is transmission-connected to the output shaft of the driving motor 2 55, and the transmission shaft 2 52 is transmission-connected to the five clamping claws 2 54.

[0084] The structure of the vertical clamping mechanism 2 8 is the same as that of the vertical clamping mechanism 1 5. The telescopic end of the electric push rod 9 56 drives the mounting support plate 2 to slide on the sliding support plate 57, the mounting support plate 2 drives the five clamping claws 2 54 to move, the output shaft of the driving motor 2 55 drives the transmission shaft 2 52 to move, and the transmission shaft 2 52 drives the five clamping claws 2 54 to move, completing the clamping action.

[0085] The suction cup mechanism 7 includes a mounting support plate 3, a moving plate and an electric push rod 10 58. The mounting support plate 3 is fixed on the moving seat 2 at the corresponding position. The electric push rod 10 58 is fixed on the mounting support plate 3. The telescopic end of the electric push rod 10 58 is fixedly connected to the moving plate. The moving plate is slidably arranged on the mounting support plate 3. A connecting rod 60 and an air extraction pipe 59 are arranged on the moving plate. The connecting rod 60 is provided with five equidistant and evenly distributed hollow suction cups 61. The five suction cups 61 are connected to the air extraction pipe 59 through pipes. The air extraction pipe 59 is connected to an external vacuum pump. The telescopic end of the electric push rod 10 58 drives the moving plate to slide on the mounting support plate 3. The moving plate drives the air extraction pipe 59 and the connecting rod 60 to move. The five suction cups 61 abut against the steel balls 74. The external vacuum pump sucks air, and the suction cups 61 adsorb the steel balls 74 at the corresponding positions.

[0086] The screwing mechanism 9 includes a mounting support plate 4, a screwing mounting plate 64 and an electric push rod 11 65. The mounting support plate 4 is fixed on the movable seat 2 at the corresponding position. The electric push rod 11 65 is fixed on the mounting support plate 4. The screwing mounting plate 64 is slidably arranged on the mounting support plate 4, and the screwing mounting plate 64 is fixedly connected to the telescopic end of the electric push rod 11 65. The screwing mounting plate 64 is provided with two symmetrically arranged rack rails 53. The rack rails 53 are slidably provided with slide seats 67. The slide seats 67 are fixed with screwing racks 68. An electric screw member 66 is provided on one side of the upper end of the mounting plate 64, and the screw slider of the electric screw member 66 is fixedly connected to one of the slide seats 67. Five equidistant and evenly distributed bearings are provided on the screw-in mounting plate 64, and the inner rings of the bearings are fixed with screw-in shafts. The upper ends of the screw-in shafts are provided with screw-in gears 69, and the five screw-in gears 69 are meshed with two screw-in racks 68. A screw-in disk 62 is fixed on the lower end of the screw-in shaft, and two symmetrically arranged clamping blocks 63 are slidably provided in the screw-in disk 62, and clamping springs 2 are provided between the clamping blocks 63 and the screw-in disk 62. The telescopic end of the electric push rod 11 65 drives the screw-on mounting plate 64 to slide on the mounting support plate 4, and the mounting support plate 4 drives the five screw-on disks 62 to move. During clamping, the screw-on disk 62 is located directly above the valve body upper shell 72, and then moves downward. After the valve body upper shell 72 enters the screw-on disk 62, the two clamping blocks 63 are squeezed. The two clamping blocks 63 cooperate with the clamping springs 2 at the corresponding positions to clamp the valve body upper shell 72. The electric screw rod 66 drives the screw rod slider thereon to move, and the screw rod slider drives the slide seat 67 to move. The slide seat 67 drives one of the screw-on racks 68 to slide on the rack slide rail 53. The screw-on rack 68 drives five screw-on gears 69 to move. The screw-on gear 69 drives the screw-on shaft at the corresponding position to move. The screw-on shaft drives the screw-on disk 62 at the corresponding position to move. The screw-on gear 69 and the slide seat 67 slide on another screw-on rack 68. The two screw-on racks 68 cooperate to keep the clamping stable and prevent deviation.

[0087] The welding mechanism 10 includes a base 71, which is fixed on the frame 11. Five equally spaced ultrasonic welders 70 are arranged on the base 71. The ultrasonic welder 70 moves, and the welding head contacts the valve body, and then welding begins. Under the action of ultrasonic waves, the valve body lower shell 76 and the valve body upper shell 72 are welded together to enhance the sealing effect.

[0088] The working principle of the present invention is: Order placement: a production order is placed, and the production volume is set according to the order quantity; Valve body production and procurement: according to the order requirements, valve body production and procurement; vulcanization production of sealing rings, injection molding production of shells, some parts outsourced; Assembly and welding: Assemble and weld according to the process. The staff will place the valve body lower shell 76, valve body upper shell 72, valve core spring 75, steel ball 74 and O-type rubber ring 73 in the corresponding positions of the vibration plate 1 respectively. Then the vibration plate 1 will transport the components inside it and enter the guide discharge mechanism 1 4 and the guide discharge mechanism 2 13 in the corresponding positions. The guide discharge mechanism 1 4 and the guide discharge mechanism 2 13 will discharge them in sequence, that is, the vibration plate 1 will transport the shell to the feed plate 1 28, enter the feed trough 1, and be guided and transported to the guide limit plate 3 through the guide limit plate 1 29. The shell is arranged on the guide limit plate 3, and then the electric push The telescopic end of the rod 1 31 drives the push plate 1 30 to move, and the push plate 1 30 drives the five push blocks 1 thereon to move, and the five push blocks 1 push the five shells to move toward the corresponding position of the discharge port 1, and the vibration plate 1 transports the shell to the feed plate 2 37, enters the feed trough 2, is raised by the feed channel, and is transported to the guide limit plate 4 through two guide limit plates 2 38, and the components are arranged on the guide limit plate 4, and then the telescopic end of the electric push rod 4 39 drives the push plate 2 40 to move, and the push plate 2 40 drives the five push blocks 2 thereon to move, and the five push blocks 2 push the five components to move toward the corresponding position of the discharge port 2; The lower shell clamping mechanism 3 is driven by the moving mechanism 2 at the corresponding position to move, that is, the telescopic end of the electric push rod 6 44 drives the moving seat 1 to move and slide on the moving frame 46, and the moving seat 1 drives the electric push rod 7 45 thereon to move, and the telescopic end of the electric push rod 7 45 drives the moving seat 2 to slide on the moving seat 1, clamping the five valve body lower shells 76 on the guide discharge mechanism 1 4 at the corresponding position, that is, the telescopic end of the electric push rod 8 49 drives the fixed plate 47 to move, and the fixed plate 47 drives the five clamping claws 1 51 to move, and the output shaft of the driving motor 1 50 drives the transmission shaft 1 48 to move, and the transmission shaft 1 48 drives the five clamping claws 1 51 to move to complete the clamping action. After the clamping is completed, the guide discharge mechanism 1 4 at the corresponding position moves to discharge five new valve body lower shells 76 in sequence, and at the same time, the lower shell clamping mechanism 3 drives the five valve body lower When the lower shell 76 is in the state of being clamped, the lower shell 76 of the valve body is clamped, and the lower shell 76 of the valve body is clamped between the sliding plate 20 and the fixing seat 25 by the action of the clamping spring 1. After the lower shell 76 of the valve body enters, it returns to the corresponding guide discharge mechanism 1 4 after the clamping and placement is completed, and waits for the next clamping of the lower shell 76 of the valve body. At the same time, the rotation of the rotary table 14 drives the flip plate 18, the fixing seat 19 and the five lower shells 76 of the valve body thereon to move to the positions of the five clamping claws 2 54, and the rotary table 14 stops moving. At this time, a flip plate 18 and the fixing seat 19 move to the position of the lower shell clamping mechanism 3, and the clamping action of the lower shell clamping mechanism 3 is repeated. The vertical clamping mechanism 1 5 is driven by the moving mechanism 2 at the corresponding position to move, clamping the five valve core springs 75 on the guide discharge mechanism 2 13 at the corresponding position, that is, the telescopic end of the electric push rod 9 56 drives the mounting support plate 2 to slide on the sliding support plate 57, the mounting support plate 2 drives the five clamping claws 2 54 to move, the output shaft of the driving motor 2 55 drives the transmission shaft 2 52 to move, the transmission shaft 2 52 drives the five clamping claws 2 54 to move, and the clamping action is completed. After the clamping is completed, the guide discharge mechanism 2 13 at the corresponding position moves to discharge the five new valve core springs 75 in sequence. At the same time, the vertical clamping mechanism 15 drives the five valve core springs 75 to move to the top of the fixed seat 19 where the valve body lower shell 76 has been placed, and installs the five valve core springs 75 in the corresponding valve body lower shell 76. After the installation and placement are completed, they return to the top of the corresponding guide discharge mechanism 2 13, waiting for the next clamping and installation of the valve core spring 75. At the same time, the rotating table 14 rotates to drive the fixed seat 19 to move to the position of the five suction cups 61, and the rotating table 14 stops moving. At this time, a fixed seat 19 moves to the position of the vertical clamping mechanism 15, and the clamping action of the vertical clamping mechanism 5 is repeated; The suction cup mechanism 7 moves under the drive of the moving mechanism 2 at the corresponding position, the external vacuum pump is started, the suction cup mechanism 7 absorbs the five steel balls 74 on the guide discharge mechanism 2 13 at the corresponding position, that is, the telescopic end of the electric push rod 10 58 drives the moving plate to slide on the mounting support plate 3, the moving plate drives the exhaust pipe 59 and the connecting rod 60 to move, the five suction cups 61 abut against the steel balls 74, the external vacuum pump sucks air, the suction cups 61 absorb the steel balls 74 at the corresponding position, after the absorption is completed, the guide discharge mechanism 2 13 at the corresponding position moves to sequentially discharge the five new steel balls 74 At the same time, the suction cup mechanism 7 drives five steel balls 74 to move to the top of the fixed seat 19 where the valve core spring 75 has been installed, and installs the five steel balls 74 on the valve core spring 75 in the corresponding valve body lower shell 76. After the installation and placement are completed, it returns to the top of the corresponding guide discharge mechanism 13, waiting for the next adsorption and installation of the steel balls 74. At the same time, the rotating table 14 rotates to drive the fixed seat 19 to move to the position of the vertical clamping mechanism 2 8, and the rotating table 14 stops moving. At this time, a fixed seat 19 moves to the position of the suction cup mechanism 7, and the adsorption action of the suction cup mechanism 7 is repeated; The vertical clamping mechanism 2 8 moves under the drive of the moving mechanism 2 at the corresponding position, clamps the five O-type rubber rings 73 on the guide discharge mechanism 2 13 at the corresponding position, and after the clamping is completed, the guide discharge mechanism 2 13 at the corresponding position moves to discharge five new O-type rubber rings 73 in sequence, and at the same time, the vertical clamping mechanism 2 8 drives the five O-type rubber rings 73 to move to the top of the fixed seat 19 where the steel ball 74 has been placed, and installs the five O-type rubber rings 73 on the corresponding valve body lower shell 76, and after the installation and placement is completed, it returns to the top of the corresponding guide discharge mechanism 2 13, waiting for the next clamping and installation of the O-type rubber ring 73, and at the same time, the rotating table 14 rotates to drive the fixed seat 19 to move to the position of the screwing mechanism 9, and the rotating table 14 stops moving. At this time, a fixed seat 19 moves to the position of the vertical clamping mechanism 2 8, and the clamping action of the vertical clamping mechanism 2 8 is repeated; The screwing mechanism 9 moves under the drive of the moving mechanism 2 at the corresponding position, clamps the five valve body upper shells 72 on the guide discharge mechanism 14 at the corresponding position, that is, the telescopic end of the electric push rod 11 65 drives the screwing mounting plate 64 to slide on the mounting support plate 4, and the mounting support plate 4 drives the five screwing discs 62 to move. During clamping, the screwing disc 62 is located directly above the valve body upper shell 72, and then moves downward. After the valve body upper shell 72 enters the screwing disc 62, it squeezes the two clamping blocks 63. The two clamping blocks 63 cooperate with the clamping spring 2 at the corresponding position to clamp the valve body upper shell 72. After the clamping is completed, the guide discharge mechanism 14 at the corresponding position moves to discharge the five new valve body upper shells 72 in sequence. At the same time, the screwing mechanism 9 drives the five valve body upper shells 72 to move to the top of the fixing seat 19 where the O-type rubber ring 73 has been installed, and continues to move to screw the five valve body upper shells 72 on the fixing seat 19, that is, The electric screw member 66 drives the screw slider thereon to move, the screw slider drives the slide 67 to move, the slide 67 drives one of the screwing racks 68 to slide on the rack slide rail 53, the screwing rack 68 drives five screwing gears 69 to move, the screwing gear 69 drives the screwing shaft at the corresponding position to move, the screwing shaft drives the screwing disk 62 at the corresponding position to move, the screwing disk 62 drives the two clamping blocks 63 to move, the two clamping blocks 63 drive the valve body upper shell 72 to move, screw the valve body upper shell 72 and the valve body lower shell 76 together, and after the screwing is completed, it returns to the corresponding guide discharge mechanism 4 above, waiting for the next clamping of the valve body upper shell 72, and at the same time, the rotating table 14 rotates to drive the fixed seat 19 and the assembled valve body thereon to move to the position of the welding mechanism 10, and the rotating table 14 stops moving. At this time, a fixed seat 19 moves to the position of the screwing mechanism 9, and the clamping action of the screwing mechanism 9 is repeated; The welding mechanism 10 moves to the top of the screwed valve body and welds the valve body together, that is, the ultrasonic welder 70 moves, the welding head contacts the valve body, and then welding begins. Under the action of ultrasonic waves, the valve body lower shell 76 and the valve body upper shell 72 are welded together, and then return to the initial position, waiting for the next welding. At the same time, the rotating table 14 rotates to drive the fixed seat 19 and the welding valve body to the position of the conveyor 12, and the rotating table 14 stops moving. At this time, a fixed seat 19 moves to the position of the welding mechanism 10, and the welding action of the welding mechanism 10 is repeated; Then, the telescopic end of the electric push rod 2 32 moves upward, contacts the flipping fixing mechanism 6, and flips the flipping fixing mechanism 6. When the flipping fixing mechanism 6 flips to the maximum angle, the welding valve body thereon leaves the flipping fixing mechanism 6, that is, the telescopic end of the electric push rod 2 32 pushes the lifting plate 21, and the lifting plate 21 pushes the flipping plate 18 and the fixing seat 19 thereon to flip. During the flipping process, the pull plate 24 moves away from the fixing seat 19 along the wedge-shaped guide plate 16 at the corresponding position. During the movement, the pull plate 24 pulls the two pull rods 26 to move, and the two pull rods 26 pull the five sliding plates 20 to slide and squeeze the clamping spring 1, thereby releasing the clamping of the welding valve body. After the flipping is completed, the telescopic end of the electric push rod 2 32 returns to the initial position, and the flipping plate 18 returns to the initial position under the action of the two reset springs 23, and falls on the conveyor 12, and is transported out by the conveyor 12; Air tightness test: perform air tightness test on the assembled and welded spring steel ball valve, introduce 100KPa compressed air from the lower shell air pipe 89 of the valve body lower shell 76 for 5 seconds, and there is no leakage in all parts of the spring steel ball valve, and introduce 2Kpa compressed air from the upper shell air pipe 82 of the valve body upper shell 72, and there is no leakage at the lower shell air pipe 89 of the valve body lower shell 76; Full product inspection: For products that pass the airtightness test, we will conduct appearance inspection and size inspection, and the qualified products will be packaged and shipped.

[0089] The spring steel ball valve that has passed the air tightness test is fully inspected for size to ensure it meets the design size requirements.

[0090] This spring steel ball valve has a stable structure and good sealing performance, and can meet the requirements of stable operation under different working conditions.

[0091] This production process has a high degree of automation, high production efficiency and good product yield. The assembly and welding equipment used in this production process can perform batch assembly, welding and product output of spring steel ball valves through the automated operations of sequenced material arrangement, sequential clamping assembly, screwing valve body, valve body welding and product flipping output. The vibration plate 1 cooperates with the guide discharge mechanism 1 4 and the guide discharge mechanism 2 13 at the corresponding positions to convey the valve body components and discharge them in sequence to facilitate clamping and assembly; the moving mechanism 2 cooperates with the lower shell clamping mechanism 3, the vertical clamping mechanism 1 5, the suction cup mechanism 7, the vertical clamping mechanism 2 8 and the screwing mechanism 9 respectively to accurately and stably clamp and transport the valve body components in batches to achieve batch assembly; the screwing mechanism 9 and the flipping and fixing mechanism 6 are used to screw the valve body lower shell 76 and the valve body upper shell 72 to increase structural stability and improve sealing; the welding mechanism 10 cooperates with the flipping and fixing mechanism 6 to perform batch welding with high welding efficiency; the flipping and fixing mechanism 6 cooperates with the electric push rod 2 32 and the rotating table 14 to release the clamping and convey the valve body, and during transportation, the valve body structural stability is preliminarily detected.

[0092] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A spring steel ball valve, comprising a valve body lower shell (76) and a valve body upper shell (72), characterized in that: The valve body lower shell (76) is threadedly connected to the valve body upper shell (72); the inner space formed by the valve body lower shell (76) and the valve body upper shell (72) is provided with a valve core spring (75), a steel ball (74) and an O-type rubber ring (73) in sequence from bottom to top; the valve core spring (75) is arranged in the valve body lower shell (76); the O-type rubber ring (73) is arranged in the valve body upper shell (72); and the steel ball (74) respectively contacts the end of the valve core spring (75) and the lower inner ring of the O-type rubber ring (73).

2. A spring steel ball valve according to claim 1, characterized in that: The valve body upper shell (72) comprises an upper shell body (77) and an upper shell air pipe (82). The upper shell air pipe (82) is located above the upper shell body (77). The inner ring of the upper shell body (77) is provided with a screw thread (78). The bottom of the upper shell body (77) is provided with a rubber mounting hole (79) and a fitting groove (81). The fitting groove (81) matches the shape and size of the O-type rubber ring (73). The fitting groove (81) is located below the rubber mounting hole (79) and is connected to the rubber mounting hole (79). The upper shell air pipe (82) is hollow inside and is connected to the fitting groove (81). The upper shell air pipe (82) is provided with a plurality of inverted skirts (80).

3. A spring steel ball valve according to claim 2, characterized in that: The valve body lower shell (76) comprises a lower shell body (84) and a lower shell air pipe (89) with a middle hole, the lower shell air pipe (89) being located below the lower shell body (84), the outer side of the lower shell body (84) being provided with a second screw thread matching the first screw thread (78), the bottom of the lower shell body (84) being provided with a hollow spring fixing rod (85) and a spring installation cavity (86), the spring fixing rod (85) extending into the spring fixing rod (85), the upper end of the lower shell body (84) being provided with a second fitting groove (88), the second fitting groove (88) and the first fitting groove (81) forming a rubber ring installation cavity, a truncated cone-shaped steel ball movement groove (87) being provided between the second fitting groove (88) and the spring installation cavity (86), the steel ball movement groove (87) being respectively connected with the second fitting groove (88) and the spring installation cavity (86).

4. A spring steel ball valve according to claim 3, characterized in that: The valve core spring (75) is arranged in the lower shell body (84), and the valve core spring (75) is sleeved on the spring fixing rod (85); the O-type rubber ring (73) is arranged in the rubber ring installation cavity; the steel ball (74) is arranged on the upper inner ring of the valve core spring (75) and the lower inner ring of the O-type rubber ring (73), and the steel ball (74) respectively contacts the end of the valve core spring (75) and the lower inner ring of the O-type rubber ring (73).

5. A production process for a spring steel ball valve as claimed in claim 4, characterized in that: The production process steps are as follows: Step 1: Place an order; the production order is issued and the production volume is set according to the order quantity; Step 2: Valve body production and procurement: vulcanization production of sealing rings, injection molding production of shells, and some parts purchased from outside; Step three, assembly and welding: assemble the produced housing, sealing ring and purchased parts to form a spring steel ball valve, and weld the assembled valve body shell; Step 4: Air tightness test: Check air tightness to ensure that it meets the design requirements; Step 5: Full product inspection: For products that pass the airtightness test, we will conduct appearance inspection and size inspection, and the qualified products will be packaged and shipped; The equipment used for assembly and welding in step 3 comprises a frame (11), a second electric push rod (32) and a rotating table (14); the rotating table (14) is arranged at the middle position of the upper end of the frame (11); the frame (11) is provided with five moving mechanisms (2), five vibration plates (1), a welding mechanism (10), a conveyor (12), two guide discharge mechanisms (4) and three guide discharge mechanisms (13); the five moving mechanisms (2), the five vibration plates (1), the welding mechanism (10), the conveyor (12), the two guide discharge mechanisms (4) and the three guide discharge mechanisms (13) are all located outside the rotating table (14); the moving mechanisms (2) and the vibration plates (1) are arranged alternately; the five moving mechanisms (2), the welding mechanism (10), the conveyor (12), the two guide discharge mechanisms (4) and the three guide discharge mechanisms (13) are arranged alternately; The positions of the mechanisms (10) and the conveyor (12) are distributed in a circle. The five moving mechanisms (2) are respectively provided with a lower shell clamping mechanism (3), a vertical clamping mechanism 1 (5), a suction cup mechanism (7), a vertical clamping mechanism 2 (8) and a screwing mechanism (9). The suction cup mechanism (7) is connected to an external vacuum pump through a pipeline. The discharge port ends of the five vibrating plates (1) are respectively fixedly connected to a guide discharge mechanism 1 (4), three guide discharge mechanisms 2 (13) and a guide discharge mechanism 1 (4). A plurality of circumferentially evenly distributed flipping fixing mechanisms (6) are hingedly connected to the rotating table (14). The electric push rod 2 (32) is fixed on the frame (11), and the electric push rod 2 (32) is located below the rotating table (14) and on the right side of the conveyor (12).

6. The production process of a spring steel ball valve according to claim 5, characterized in that: The rotating table (14) is provided with a circular supporting plate, a plurality of turning openings (15) and a plurality of blocking grooves (17) are provided on the outer side of the upper end of the circular supporting plate, and the blocking grooves (17) are located on the inner side of the turning openings (15) at corresponding positions, and a plurality of wedge-shaped guide plates (16) are provided on the circular supporting plate, and the wedge-shaped guide plates (16) are located on the side of the turning openings (15) at corresponding positions, and the wedge-shaped guide plates (16) are fan-shaped and hollow in the fan shape; The flipping and fixing mechanism (6) comprises a flipping plate (18), a fixing seat (19) and two symmetrically arranged return springs (23), wherein the flipping plate (18) is hinged in the flipping opening (15) of the circular supporting plate, a baffle (22) is provided at the end of the flipping plate (18), and the baffle (22) matches the size of the blocking groove (17), a triangular lifting plate (21) is provided at the middle position below the flipping plate (18), one end of the two return springs (23) are fixed below the flipping plate (18), and the two return springs (23) are respectively located on both sides of the lifting plate (21), and the other ends of the two return springs (23) are fixed below the circular supporting plate, the fixing seat (19) is arranged at the upper end of the flipping plate (18), and the fixing seat (19) is provided with five A second fixed seat (25) is evenly spaced, and five sliding plates (20) are slidably arranged on the first fixed seat (19). The sliding plates (20) and the second fixed seat (25) are both provided with semicircular clamping openings, and clamping holes are formed between two corresponding positions, and a clamping spring is provided between the side of the sliding plate (20) and the first fixed seat (19). Two symmetrically arranged pull rods (26) are provided between the five sliding plates (20), and the two pull rods (26) are respectively located at two ends of the sliding plate (20), and the ends of the two pull rods (26) extend out of the end of the first fixed seat (19), and a pull plate (24) is provided between the ends of the two pull rods (26), and a stretching opening is formed between the pull plate (24), the end of the first fixed seat (19) and the two pull rods (26).

7. The production process of a spring steel ball valve according to claim 6, characterized in that: The guide discharge mechanism (4) comprises a support rod (27) and a bracket (35), the support rod (27) and the bracket (35) are both fixed on the frame (11), a feeding plate (28) is provided at the upper end of the support rod (27), the end of the feeding plate (28) is connected to the discharge port of the vibration plate (1) at the corresponding position, a feeding trough (2) is provided on the feeding plate (28), two symmetrically arranged guide limit plates (29) are provided on the feeding plate (28), the two guide limit plates (29) are both located in the feeding trough (2), a discharge plate (1) is provided on one side of the upper end of the bracket (35), the upper end of the discharge plate (1) is provided with five equidistant and evenly distributed discharge ports (1), a U-shaped guide limit plate (3) is provided at the lower end of the discharge plate, and one side of the guide limit plate (3) is provided with five equidistant and evenly distributed discharge ports (1) A uniformly distributed push port 1, an end of the guide limit plate 3 is connected to the guide limit plate 1 (29), the position and size of the push port 1 correspond to the discharge port 1, an electric push rod 1 (31) is fixed to the other side of the upper end of the bracket 1 (35), a push plate 1 (30) is provided on the telescopic end of the electric push rod 1 (31), and five uniformly distributed push blocks 1 are provided on the push plate 1 (30), the push blocks 1 correspond to the position and size of the push port 1, the lower end surface of the push block 1 is higher than the upper end surface of the guide limit plate 3, an electric push rod 3 (34) is fixed below the bracket 1 (35), a push plate 1 (33) is fixed on the telescopic end of the electric push rod 3 (34), and five uniformly distributed push blocks 1 are provided on the push plate 1 (33), and the push blocks 1 correspond to the position and size of the discharge port 1; The guide discharge mechanism 2 (13) comprises a support rod 2 (36) and a bracket 2 (42), both of which are fixed on the frame (11), a feed plate 2 (37) is provided at the upper end of the support rod 2 (36), a feed trough 2 is provided on the feed plate 2 (37), the feed plate 2 (37) is provided with an inclined feed channel and two symmetrically arranged guide limit plates 2 (38), the feed channel is located in the middle position below the two guide limit plates 2 (38), a U-shaped guide limit plate 4 is provided at the end of the feed plate 2 (37), five equally spaced push openings 2 are provided on one side of the guide limit plate 4, the upper end surface of the guide limit plate 4 is flush with the upper end surface of the guide limit plate 2 (38), and one side of the upper end of the bracket 2 (42) is provided with a There is a discharge plate 2, the upper end of which is provided with five discharge openings 2 at equal intervals, and the position and size of the discharge openings 2 correspond to each other; an electric push rod 4 (39) is fixed to the other side of the upper end of a bracket 2 (42); a push plate 2 (40) is fixed to the telescopic end of the electric push rod 4 (39); the push plate 2 (40) is provided with five push blocks 2 at equal intervals, and the position and size of the push blocks 2 correspond to each other; the lower end surface of the push block 2 is higher than the upper end surface of the guide limit plate 4; an electric push rod 5 (43) is fixed below the bracket 2 (42); a push plate 2 (41) is fixed to the telescopic end of the electric push rod 5 (43); the push plate 2 (41) is provided with five push blocks 2 at equal intervals, and the position and size of the push blocks 2 correspond to each other; 8. The production process of a spring steel ball valve according to claim 7, characterized in that: The moving mechanism (2) comprises a moving frame (46), the moving frame (46) being fixed on the frame (11), a moving seat 1 being slidably provided on the upper end of the side of the moving frame (46), a horizontally arranged electric push rod 6 (44) being fixed on the moving frame (46), the electric push rod 6 (44) being fixedly connected to the moving seat 1, a moving seat 2 being slidably provided on the moving seat 1, a vertically arranged electric push rod 7 (45) being fixedly connected to the moving seat 2 at its telescopic end; The moving mechanism (2) comprises a moving frame (46), the moving frame (46) being fixed on the frame (11), a moving seat 1 being slidably provided on the upper end of the side of the moving frame (46), a horizontally arranged electric push rod 6 (44) being fixed on the moving frame (46), the electric push rod 6 (44) being fixedly connected to the moving seat 1, a moving seat 2 being slidably provided on the moving seat 1, a vertically arranged electric push rod 7 (45) being fixedly connected to the moving seat 2 at its telescopic end.

9. The production process of a spring steel ball valve according to claim 8, characterized in that: The vertical clamping mechanism 1 (5) comprises a sliding support plate (57), a driving motor 2 (55), a mounting support plate 2 and an electric push rod 9 (56), wherein the sliding support plate (57) is fixed on the movable seat 2 at a corresponding position, the electric push rod 9 (56) is fixed on the sliding support plate (57), the driving motor 2 (55) is fixed on the side of the mounting support plate 2, the mounting support plate 2 is slidably arranged on the sliding support plate (57), the mounting support plate 2 is fixedly connected to the telescopic end of the electric push rod 9 (56), the mounting support plate 2 is provided with five equidistant and evenly distributed clamping claws 2 (54), the mounting support plate 2 is rotatably provided with a transmission shaft 2 (52), the transmission shaft 2 (52) is transmission-connected to the output shaft of the driving motor 2 (55), and the transmission shaft 2 (52) is transmission-connected to the five clamping claws 2 (54); The structure of the second vertical clamping mechanism (8) is the same as that of the first vertical clamping mechanism (5); The suction cup mechanism (7) comprises a mounting support plate three, a movable plate and an electric push rod ten (58), wherein the mounting support plate three is fixed on the movable seat two at a corresponding position, the electric push rod ten (58) is fixed on the mounting support plate three, the telescopic end of the electric push rod ten (58) is fixedly connected to the movable plate, the movable plate is slidably arranged on the mounting support plate three, a connecting rod (60) and an exhaust pipe (59) are provided on the movable plate, and five hollow suction cups (61) are evenly distributed at equal distances on the connecting rod (60), the five suction cups (61) are connected to the exhaust pipe (59) through pipelines, and the exhaust pipe (59) is connected to an external vacuum pump.

10. The production process of a spring steel ball valve according to claim 9, characterized in that: The screwing mechanism (9) comprises a mounting support plate four, a screwing mounting plate (64) and an electric push rod eleven (65), wherein the mounting support plate four is fixed on a movable seat two at a corresponding position, the electric push rod eleven (65) is fixed on the mounting support plate four, the screwing mounting plate (64) is slidably arranged on the mounting support plate four, and the screwing mounting plate (64) is fixedly connected to the telescopic end of the electric push rod eleven (65), the screwing mounting plate (64) is provided with two symmetrically arranged rack rails (53), each of which is slidably provided with a slide seat (67), each of which is fixed with a screwing rack (68), and the screwing mounting plate (64) is provided with a screwing rack (68) and a screwing rack (68) and a screwing rack (68) are fixed on the slide seat (67). An electric screw member (66) is provided on one side of the upper end of the mounting plate (64), and a screw slider of the electric screw member (66) is fixedly connected to one of the slide seats (67). Five bearings are evenly spaced and arranged on the screw mounting plate (64), and screw shafts are fixed to the inner rings of the bearings. A screw gear (69) is provided on the upper end of the screw shaft. The five screw gears (69) are meshed with two screw racks (68). A screw disk (62) is fixed on the lower end of the screw shaft. Two symmetrically arranged clamping blocks (63) are slidably provided in the screw disk (62), and clamping springs are provided between the clamping blocks (63) and the screw disk (62); The welding mechanism (10) comprises a base (71), the base (71) being fixed on the frame (11), and five ultrasonic welders (70) being arranged at equal distances from each other on the base (71).

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