Restoration device for ball core of T-shaped ball valve and use method of restoration device

Abstract

The invention discloses a T-shaped ball valve ball core restoration device and a using method thereof.The device comprises a feeding assembly, a supporting base, a fixing assembly and a pair of adjusting mechanisms, a ball core is pretreated through the feeding assembly, three types of flow channel supporting of the ball core is completed, an ejector rod in the fixing assembly moves up and down, and the adjusting mechanisms are arranged on the supporting base; the positioning plate is expanded outwards or contracted inwards, the ball core can be automatically limited and fixed, and one end of a guide rod in the positioning assembly is in elastic contact with the peripheral side of the ball core, so that a ball core runner is positioned in a front view; the guide rod is embedded into the ball core flow channel to determine the flow channel arrangement mode of the ball core, the rotating wheel in the rotating assembly can make contact with the circumferential side of the ball core and drive the ball core to rotate, # imgabs0 # structure restoration of the ball core placed at will is achieved, the efficiency is high, restoration output of each ball core is guaranteed, treatment of the subsequent procedure is facilitated, and the production efficiency is improved. And the damage to the ball core in the adjusting process is effectively avoided, and the device is suitable for medium-large ball cores.

Description

Technical Field

[0001] The present invention relates to the field of valve processing, and particularly relates to a device for rectifying the ball core of a T-shaped ball valve and a method for using the same. Background Art

[0002] The ball core of a T-shaped ball valve is the core component of the valve. The processing accuracy of its internal channel directly affects the sealing performance, fluid control performance and service life of the valve. Specifically, the inside of the ball core of a T-shaped ball valve is a T-shaped three-way structure, and the large-angle rotation of the valve stem is used to complete the fluid distribution of three ports or two of them, so as to realize the functions of shunting, confluence or flow direction switching. It has high flexibility and can be used in occasions of multi-way distribution such as medium mixing in industrial reaction kettles and branch control of heating systems;

[0003] The ball core of a T-shaped ball valve needs to be rectified between the completion of processing and assembly, that is, the T-shaped ball core needs to be placed in a specific position to facilitate the grasping of a manipulator or the operation of other mechanisms. For example, on a conveyor line or in an assembly area, from the perspective of the front view, the flow channel axes of the T-shaped ball core are all in the same vertical plane to present a positive T shape. For example, the Chinese invention patent with the authorization number 2024109916040: A ball core feeding mechanism, a ball core and valve body assembly device, and an assembly method, the disclosed content: The feeding assembly can clamp and horizontally transport the sequentially entering ball cores, and the feeding component deflects the ball cores, so that the ball cores are rotationally calibrated on the first conveyor belt to realize the uniform arrangement of the ball cores at a specific angle, which is convenient for the next process to assemble the ball cores; due to the T-shaped ball core having three ports, the above-mentioned feeding assembly and feeding component cannot be applied;

[0004] At present, the rectification of T-shaped ball valves mainly relies on manual labor and vibrating bowls. The manual method has low efficiency and cannot guarantee the positive placement of the T-shaped ball core; The vibrating bowl mainly makes the ball core gradually deflect forward by vibrating and guiding the ball core, but this method has the following defects: Vibration is likely to damage the surface of the ball core, and for ball cores that do not conform to the guidance, they need to be discharged downward and vibrated and guided again. During the discharging process, adjacent ball cores are also prone to collide and damage. On the other hand, vibrating bowls are suitable for small ball cores and not for medium and large ball cores. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for rectifying the ball core of a T-shaped ball valve, which can rectify the structure of the ball core placed arbitrarily, not only with high efficiency, ensuring the rectified output of each ball core, facilitating the processing of subsequent processes, but also effectively avoiding damage to the ball core during the adjustment process, and being applicable to medium and large ball cores; To achieve the above purpose, a device for rectifying the ball core of a T-shaped ball valve of the present invention includes:

[0006]

[0007] ​The feed assembly has a feed plate with adjustable tilt; the feed plate can convert the rolling state of the ball core into a supporting state with the flow channel facing downward;

[0008] A support seat is driven to rotate and is mounted on a fixed base;

[0009] A fixed assembly, connected to the support seat and rotating with it, comprising a support plate and a push rod;

[0010] The support plate is used to receive the ball core with the flow channel facing downwards. The middle part of the ejector slides through the support plate, the lower end is connected to the lifting assembly, and the upper part is provided with a plurality of positioning plates that expand outwards and contract inwards relative to the axis of the ejector;

[0011] When the push rod moves downward to the limit position, the positioning plate shrinks inwards to be close to the push rod and the upper end of the push rod does not exceed the upper end surface of the support plate; when the push rod moves upwards to the limit position, the positioning plate expands outwards to contact and fix with the inner wall of the ball core flow channel;

[0012] A pair of adjustment mechanisms are symmetrically located on both sides of the fixed component and connected to the fixed base, each adjustment mechanism includes: a positioning component and a rotating component;

[0013] The positioning assembly has a guide rod which is elastically arranged and driven to approach and move away from the ball core; wherein when the guide rod approaches the ball core, the guide rod can be inserted into the flow channel of the ball core;

[0014] The rotating assembly has a plurality of rotating wheels arranged in an array and capable of being driven to synchronously approach and move away from the ball core;

[0015] The array size is larger than the flow channel diameter of the ball core, the axis of the rotating wheel is perpendicular to the axis of the mandrel, and at least one rotating wheel is driven to rotate.

[0016] In some examples of the present invention, the lower end of the positioning plate is rotatably connected to the guide rod and is arranged outwardly;

[0017] An inverted second conical surface is provided on the upper end surface of the support plate;

[0018] When the push rod moves upward, the push rod is biased to expand outward, and when the push rod moves downward, the outer side surface of the positioning plate contacts the second conical surface and gathers and shrinks inward.

[0019] In some examples of the present invention, an inverted first conical surface is provided on the upper portion of the guide rod;

[0020] The sides of the positioning plate close to and away from the guide rod are respectively the first inclined surface and the second inclined surface; the first inclined surface matches the first conical surface, and the second inclined surface matches the second conical surface;

[0021] An elastic pad is arranged on one side of the positioning plate that contacts the inner wall of the ball core flow channel.

[0022] In some examples of the present invention, the lifting assembly has a lifting plate that is driven to move up and down;

[0023] Wherein, the ejector rod is installed on the lifting plate;

[0024] The cross-sectional outer contour of the support plate is a T-shaped structure. The upper part of the support plate is located in the groove of the support seat, and the upper end of the support plate is not higher than the upper end of the support seat. The lower part is connected to the support seat through a key, and a first elastic member is provided between the lower end and the lifting plate.

[0025] In some examples of the present invention, the positioning assembly further has: a first driving member, a positioning cylinder, and a second elastic member;

[0026] The positioning cylinder is connected to the fixed base through a fixing plate;

[0027] One end of the guide rod slides in the positioning cylinder, and a positioning wheel with a vertically arranged axis is rotated at the other end. The output end of the first driving member is located in the positioning cylinder;

[0028] Both ends of the second elastic member are respectively connected to the output end of the first driving member and one end of the guide rod, and can be in a tensioned and compressed state.

[0029] In some examples of the present invention, the rotating assembly further has: a second driving member, a connecting rod, and a support cylinder;

[0030] Both ends of the connecting rod are respectively rotatably connected to the rotating wheel and the output end of the second driving member, and the middle part is slidably connected to the support cylinder; the support cylinder is rotatably installed on the connecting plate;

[0031] Wherein, the double output ends of the second driving member are respectively connected to the connecting rods arranged up and down.

[0032] In some examples of the present invention, the rotating assembly further has a third driving member and an arc plate;

[0033] The third driving member is installed on the positioning cylinder through the connecting plate, and the output end is connected to the arc plate and drives the arc plate to approach and move away from the ball core;

[0034] A plurality of rotating wheels are rotatably connected to the arc plate.

[0035] In some examples of the present invention, it further includes: a pair of first sensors and a second sensor respectively connected to the controller;

[0036] A pair of first sensors are respectively installed at one end of the guide rod close to the ball core and are used to monitor whether the guide rod is located in the flow channel of the ball core;

[0037] The second sensor is used to monitor whether the slot hole on the ball core is in the forward position;

[0038] When one of the guide rods is located in the ball core flow channel, the controller receives a signal and controls the action of the rotating assembly; when a pair of guide rods are located in the ball core flow channel, the controller receives a signal and controls the rotating assembly not to act;

[0039] When the ball core slot is not in the positive position, the controller receives the signal and controls the action of the support seat.

[0040] In some examples of the present invention, the outlet of the feed assembly is located at the support plate, and there are also a plurality of support plates located at the bottom end of the feed plate;

[0041] A plurality of support plates are arranged at intervals along the moving direction of the ball core, and each support plate is driven to reciprocate, and the reciprocating direction forms an angle with the moving direction of the ball core.

[0042] The purpose of the present invention is to provide a method for using a T-type ball valve ball core correction device, which pre-treats the ball core through a feed assembly to complete three forms of flow channel support for the ball core, and can automatically limit and fix the ball core through the up and down movement of the push rod and the outward expansion or inward contraction of the positioning plate, and realize the positioning of the ball core flow channel on the main view through the guide rod; the ball core flow channel is realized by the rotating wheel in the rotating assembly contacting the circumference of the ball core and driving the ball core to rotate. The structural correction processing is highly efficient and ensures the correct output of each ball core.

[0043] A method for using a correction device for a T-type ball valve ball core, specifically comprising the following steps:

[0044] S1, initial state, the guide rod and multiple rotating wheels are away from the ball core; the push rod is at the lower limit position, at this time the positioning plate is retracted close to the push rod, and the push rod is hidden in the support plate, which can ensure that the support plate can normally receive the ball core;

[0045] S2, the ball core is placed in the feed assembly for pretreatment, so that one of the flow channels of the ball core faces downward and is supported by it. After the pretreatment of the feed assembly, the flow channel structure of the ball core is Three forms, and there is an angle deviation relative to the main view;

[0046] S3, the support plate on the support seat receives the ball core with the flow channel facing downward, the lifting assembly drives the ejector rod to move upward, the positioning plate moves upward with the ejector rod and is located in the flow channel of the ball core, and gradually expands outward to contact the inner wall of the flow channel of the ball core with a smaller angle, when the ejector rod moves to the upper limit position, multiple positioning plates expand outward and squeeze the inner wall of the flow channel of the ball core to complete the limit fixation of the ball core;

[0047] S3, when the ball core is limited and fixed, the guide rods located on both sides of the ball core are driven to approach the ball core and elastically contact with the peripheral surface of the ball core, and then the support seat is driven to rotate, so that the ball core rotates relative to the guide rods;

[0048] When a pair of guide rods are embedded in the flow channel of the ball core, it means that the flow channel arrangement of the ball core is structure;

[0049] When one of the guide rods is embedded in the flow channel of the ball core, it means that the flow channel arrangement of the ball core is or The structure, then the rotating assembly moves, the rotating wheel synchronously approaches the ball core and contacts it, the top rod releases the limit fixation, at least one rotating wheel is driven to rotate, driving the ball core to rotate °, so that the flow channel of the ball core is corrected to structure;

[0050] S4, the ball core flow channel is adjusted to the correct After the structure is restored, it returns to the initial state, and the support plate receives the corrected ball core, so that the ball core can continue to be transported or transferred;

[0051] If the groove on the ball core for positioning the valve stem is in the reverse direction, it can be adjusted by slowly rotating the support seat so that the groove is in the positive position.

[0052] Compared with the prior art, the present invention provides a T-type ball valve ball core correction device that pre-treats the ball core through a feed assembly to complete three forms of flow channel support for the ball core, and by moving the top rod in the fixing assembly up and down to make the positioning plate expand outward or contract inward, so as to realize automatic limit fixation of the ball core, and by elastically contacting one end of the guide rod in the positioning assembly with the peripheral side of the ball core, when the support seat is driven to make the ball core rotate, one end of the guide rod is embedded in the flow channel of the ball core to realize the positioning of the flow channel of the ball core in the main view; the guide rod is embedded in the flow channel of the ball core to determine the flow channel layout of the ball core, and the rotating wheel in the rotating assembly can be used to contact the peripheral side of the ball core and drive the ball core to rotate, so as to realize the flow channel of the ball core. The structural correction process is to correct the arbitrarily placed core Structural correction is not only highly efficient and ensures the correct output of each ball core, facilitating the subsequent processing steps, but also effectively avoids damage to the ball core during the adjustment process. It is suitable for medium and large ball cores.

[0053] Since the upper part of the support plate is located in the groove of the support seat, and a first elastic member is provided between the lower end and the lifting plate, when the lifting plate 31 drives the push rod to move upward, on the one hand, the lifting plate drives the support plate to move upward through the first elastic member, and the first elastic member is in a compressed state and can elastically support the ball core, which can compensate for the rotation space of the ball core and avoid a hard collision between the peripheral side of the ball core and the support plate when the rotation is corrected. On the other hand, there is a height difference between the moving position of the push rod and the support plate to ensure that the positioning plate is expanded outward to limit and fix the ball core; in addition, the feeding assembly has a feed plate with adjustable inclination, and a plurality of support plates driven to reciprocate. When the ball core rolls, the support plate can increase the shaking between it and the ball core to ensure that one flow channel on the ball core faces downward. Brief Description of the Drawings

[0054] Figure 1 is the overall front view of the present invention;

[0055] Figure 2 is the front view of the fixing component in the present invention;

[0056] Figure 3 is the front view when the fixing component in the present invention fixes the ball core (the ejector rod moves upward to the limit position);

[0057] Figure 4 is the front view when the fixing component in the present invention does not fix the ball core (the ejector rod moves downward to the limit position);

[0058] Figure 5 is the front view of the adjusting mechanism in the present invention (the positioning component and the rotating component);

[0059] Figure 6 is the front view of an embodiment of the rotating component in the present invention;

[0060] Figure 7 is the schematic diagram of an embodiment of the rotating component in the present invention;

[0061] Figure 8 is the schematic diagram of another embodiment of the rotating component in the present invention;

[0062] Figure 9 is the schematic diagram of the feeding component in the present invention;

[0063] Figure 10 is the kinematic schematic diagram of the present invention for rectifying the ball core;

[0064] In the figure: 11, fixed base, 12, support base, 13, fixing plate;

[0065] 20, ball core;

[0066] 30, lifting component, 31, lifting plate;

[0067] 40, fixing component, 41, ejector rod, 411, first conical surface, 42, positioning plate, 421, elastic pad, 43, support plate, 431, second conical surface, 44, first elastic member;

[0068] 50, positioning component, 51, positioning cylinder, 52, first driving member, 53, second elastic member, 54, guide rod, 55, positioning wheel;

[0069] 60, rotating component, 61, second driving member, 62, connecting rod, 63, rotating wheel, 64, support cylinder, 65, connecting plate; 66, third driving member, 67, arc plate;

[0070] 71. Feed plate, 72. First support plate, 72. Second support plate;

[0071] 81. First sensor. Detailed implementation manner

[0072] In order to make the objectives, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the specific embodiments of the present invention. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0073] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The "first", "second" and similar terms used in the specification and claims of this patent application of the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not necessarily denote a quantity limitation. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0074] For the convenience of description, the position where the T-shaped ball core 20 (hereinafter uniformly referred to as the ball core 20) is positioned by the fixing assembly 40 is defined as the center. The position closer to the center is inward, and the position farther from the center is outward. The finally aligned position of the ball core 20 is on the front view, and the flow channel of the ball core 20 is a forward T-shaped;

[0075] As Figures 1 to 4 shown, a device for aligning the ball core of a T-shaped ball valve of the present invention includes:

[0076] A feeding assembly having an inclined adjustable feeding plate 71; the feeding plate 71 is used to support the rolling ball core 20 and make the flow channel of the ball core 20 face downward;

[0077] A support seat 12 is rotatably mounted on a fixed base 11 by being driven;

[0078] The fixing component 40 is connected to the support base 12 and rotates therewith, and includes a support plate 43 and a push rod 41;

[0079] The support plate 43 is used to receive the ball core 20 with the flow channel facing downward. The middle part of the push rod 41 slides through the support plate 43, the lower end is connected to the lifting component 30, and multiple positioning plates 42 that expand outward and contract inward relative to the axis of the push rod 41 are provided on the upper part;

[0080] Wherein, when the push rod 41 moves downward to the limit position, the positioning plates 42 contract inward and approach the push rod 41, and the upper end of the push rod 41 does not exceed the upper end face of the support plate 43. When the push rod 41 moves upward to the limit position, the lower end of the push rod 41 can drive the support plate 43 to move upward by a certain height, and the positioning plates 42 expand outward and contact and limit-fix the inner wall of the flow channel of the ball core 20;

[0081] A pair of adjusting mechanisms symmetrically located on both sides of the fixing component 40 and connected to the fixed base 11. Each adjusting mechanism includes: a positioning component 50 and a rotating component 60;

[0082] The positioning component 50 has a guide rod 54 elastically arranged and driven to approach and move away from the ball core 20. Wherein, when the guide rod 54 approaches the ball core 20, the guide rod 54 can be inserted into the flow channel of the ball core 20;

[0083] The rotating component 60 has a plurality of rotating wheels 63 arranged in an array and driven to synchronously approach and move away from the ball core 20. Wherein, the array size is larger than the diameter of the flow channel of the ball core 20, the axis of the rotating wheel 63 is perpendicular to the axis of the push rod 41, and at least one rotating wheel 63 is driven to rotate;

[0084] Specifically, the feeding component is used for preprocessing the ball core 20 to make one flow channel of the ball core 20 face downward, that is, placing the ball core 20 on the inclined feeding plate 71 at any angle, and the ball core 20 rolls slightly on the feeding plate 71 until one of its flow channels faces downward for sliding. At this time, the flow channel structure of the ball core 20 is Three forms;

[0085] The fixed base 11 is used for the overall support of this alignment device and can be placed on the corresponding conveyor line;

[0086] The support base 12 can be rotatably installed on the fixed base 11 through a bearing or a slewing bearing. The driving method can be: a toothed ring is provided on the support base 12, a driving member is provided on the fixed base 11, the output end of the driving member is connected to a gear, and the gear is meshed with the toothed ring. Therefore, when the driving member is started, the support base 12 can be driven to rotate on the fixed base 11 through the gear and the toothed ring; a through hole can be provided in the middle of the support base 12 for installing the fixing component 40;

[0087] The fixing assembly 40 is used to limit and fix the T-shaped ball core 20. The support plate 43 is located in the middle of the support seat 12 and can be connected to the support seat 12 by a spline or a flat key. The lifting assembly 30 at the lower end of the top rod 41 can be installed at the bottom of the support seat 12. Driven by the lifting assembly 30, the top rod 41 moves up and down and can make the upper positioning plate 42 expand outward or contract inward; the number of positioning plates 42 can be 2-8, which can ensure that they act in the flow channel of the ball core 20 after expansion;

[0088] A pair of adjustment mechanisms are located on the left and right sides of the fixed assembly 40, and the height is consistent with the horizontal flow channel of the ball core 20, such as Figure 1 As shown, the positioning assembly 50 is used to position the flow channel of the ball core 20, and the rotating assembly 60 is used to rotate the ball core 20 so that the flow channel is corrected to a T shape; there can be four rotating wheels 63, which are arranged in a four-corner array, and the axis of each rotating wheel 63 is perpendicular to the axis of the top rod 41, that is, in the front view, the rotating wheel 63 can be tangent to the outer circle contour of the ball core 20 to realize the rotation of the ball core 20; the size of the array is larger than the flow channel diameter of the ball core 20, which can ensure that the position of the rotating wheel 63 will not be embedded in the flow channel of the ball core 20;

[0089] When the T-type ball valve ball core correction device is used, the ball core 20 is first pre-processed through the feed assembly so that one of the flow channels of the ball core 20 faces downward and is supported by it. Figure 9 , Figure 10 As shown, the feeding assembly can be a plurality of support plates that are angled with the moving direction of the ball core 20 and can move. The support plates are reciprocated to make them roll relative to the circumferential surface of the ball core 20 until a flow channel of the ball core 20 faces downward. After the feeding assembly is pre-processed, the flow channel structure of the ball core 20 is Three forms, and there is an angle deviation relative to the main view;

[0090] In the initial state, the adjustment mechanism is away from the ball core 20, and the push rod 41 moves downward to the limit position. At this time, the positioning plate 42 shrinks and approaches the push rod 41, and the push rod 41 is hidden in the support plate 43, which can ensure that the support plate 43 can normally receive the ball core 20;

[0091] The fixing assembly 40 is in motion, that is, the support plate 43 is used to receive the ball core 20 with the flow channel facing downward. When the lifting assembly 30 drives the push rod 41 to move upward, the positioning plate 42 moves upward with the push rod 41 and is located in the flow channel of the ball core 20, and gradually expands outward to contact the inner wall of the flow channel of the ball core 20 with a smaller angle. When the push rod 41 moves to the limit position, the push rod 41 can drive the support plate 43 to move upward to a certain height, and multiple positioning plates 42 expand outward to squeeze the inner wall of the flow channel of the ball core 20 to achieve automatic limit fixation of the ball core 20;

[0092] After the ball core 20 is limited and fixed by the fixing component 40, the positioning component 50 operates, that is, the guide rod 54 is driven to approach the ball core 20 and elastically contact the circumferential surface of the ball core 20. Then, the support seat 12 is driven to rotate, so that the ball core 20 rotates relative to the adjustment mechanism;

[0093] When the guide rod 54 of one of the positioning components 50 is embedded in the flow channel of the ball core 20, it means that the layout mode of the flow channel of the ball core 20 is Or structure, then the rotating component 60 operates, that is, the four rotating wheels 63 approach the ball core 20 synchronously and contact it. The ejector rod 41 moves downward to release the limit fixation of the ball core 20. At least one rotating wheel 63 is driven to rotate, driving the ball core 20 to rotate 90°, so that the flow channel of the ball core 20 is corrected to structure. For example, when the layout mode of the flow channel of the ball core 20 is structure, the ball core 20 rotates 90° clockwise. When the layout mode of the flow channel of the ball core 20 is structure, the ball core 20 rotates 90° counterclockwise;

[0094] When the guide rods 54 of a pair of positioning components 50 are both embedded in the flow channel of the ball core 20, it means that the layout mode of the flow channel of the ball core 20 is structure, then the rotating component 60 does not operate;

[0095] When the flow channel of the ball core 20 is adjusted to the corrected structure, it returns to the initial state, and the support seat 12 resumes to support the ball core 20. After being corrected, the ball core 20 can continue to be conveyed or transferred. In addition, when the flow channel of the ball core 20 is corrected to structure, the sensor can be used to determine whether the groove for valve rod positioning on the ball core 20 is in the forward or reverse direction. On the one hand, the support seat 12 can be slowly rotated for adjustment to make the groove in the forward position, or the ejector rod 41 can rise to re-limit and fix the ball core 20, and then the support seat 12 can be quickly rotated for adjustment to make the groove in the forward position.

[0096] The correction device for the ball core of this T-shaped ball valve pre-treats the ball core 20 through the feeding component, completes the support of the three forms of flow channels of the ball core 20. By moving the ejector rod 41 up and down in the fixing component 40, the positioning plate 42 can be unfolded outward or contracted inward, and the automatic limit fixation of the ball core 20 can be realized. One end of the guide rod 54 in the positioning component 50 elastically contacts the circumferential side of the ball core 20. When the support seat 12 is driven to rotate the ball core 20, one end of the guide rod 54 is embedded in the flow channel of the ball core 20, realizing the positioning of the flow channel of the ball core 20 in the front view; by embedding the guide rod 54 in the flow channel of the ball core 20 to determine the layout mode of the flow channel of the ball core 20, and the rotating wheel 63 in the rotating component 60 can be used to contact the circumferential side of the ball core 20 and drive the ball core 20 to rotate, realizing the flow channel of the ball core 20 Rectification processing of the structure, that is, the randomly placed ball core 20 is structurally rectified, which not only has high efficiency, ensures the rectified output of each ball core 20, facilitates the processing of subsequent processes, but also effectively avoids damage to the ball core 20 during the adjustment process, and is applicable to medium and large-sized ball cores 20.

[0097] In some examples of the present invention, such as Figures 2 to 4 shown, the lower end of the positioning plate 42 is rotatably connected to the guide rod 54 and is arranged with an outward bias;

[0098] The upper end surface of the support plate 43 is provided with an inverted second conical surface 431;

[0099] When the ejector rod 41 moves upward, the ejector rod 41 biases outward to expand. When the ejector rod 41 moves downward, the outer side surface of the positioning plate 42 contacts the second conical surface 431 and converges inward to contract;

[0100] Specifically, when the guide rod 54 moves upward relative to the support plate 43, the positioning plate 42 automatically expands due to gravity and contacts the inner wall of the flow channel of the ball core 20 at a small entry angle. Under the action of friction, the positioning plate 42 can squeeze and position the inner wall of the flow channel of the ball core 20; when the guide rod 54 moves downward relative to the support plate 43, the outer side surface of the positioning plate 42 contacts the second conical surface 431 and converges inward to contract, and finally the positioning plate 42 disengages from the inner wall of the flow channel of the ball core 20 and returns to the initial position; this example can achieve automatic limit fixation of the ball core 20 without relying on additional power.

[0101] In some examples of the present invention, such as Figures 2 to 4 shown, the upper part of the guide rod 54 is provided with an inverted first conical surface 411;

[0102] One side of the positioning plate 42 close to and away from the guide rod 54 is a first inclined surface and a second inclined surface respectively;

[0103] When the ejector rod 41 moves downward to the limit position, the first inclined surface matches the first conical surface 411, and the second inclined surface matches the second conical surface 431;

[0104] One side of the positioning plate 42 in contact with the inner wall of the flow channel of the ball core 20 is provided with an elastic pad 421;

[0105] Specifically, in this example, without affecting the automatic limit fixation of the ball core 20, the positioning plate 42 in the initial state can be hidden between the guide rod 54 and the support plate 43, and it can be ensured that the upper ends of the positioning plate 42 and the ejector rod 41 do not exceed the upper end surface of the support plate 43.

[0106] In some examples of the present invention, such as Figures 1 to 4 shown, the lifting assembly 30 has a lifting plate 31 that is driven to move up and down;

[0107] Wherein, the top rod 41 is installed on the lifting plate 31;

[0108] The cross-sectional outer contour of the support plate 43 is a T-shaped structure, the upper portion of the support plate 43 is located in the groove of the support seat 12 and the upper end of the support plate 43 is not higher than the upper end of the support seat 12, the lower portion is connected to the support seat 12 through a key, and a first elastic member 44 is provided between the lower end and the lifting plate 31;

[0109] Specifically, the lifting plate 31 can be connected to the output end of the oil cylinder, and the oil cylinder is fixed on the support seat 12. In order to ensure that the oil cylinder is normally supplied with oil while the support seat 12 rotates, the oil can be connected to the oil cylinder through a rotary joint;

[0110] The support plate 43 is connected to the support seat 12 through a key, which is used to ensure that the support plate 43 and the support seat 12 rotate together and slide up and down relatively; the first elastic member 44 can be a cylindrical spring;

[0111] When the lifting plate 31 moves upward, the first elastic member 44 can drive the support plate 43 to move upward to a certain height. The purpose is that because the flow channel of the ball core 20 faces downward, after the support plate 43 receives the ball core 20, the distance from the center of the ball core 20 to the support plate 43 is smaller than the outer diameter of the ball core 20. When the ball core 20 rotates in the normal direction, there is a problem of hard collision between the peripheral side and the support plate 43. Therefore, the support plate 43 moves upward to a certain height to compensate for the rotation space of the ball core 20.

[0112] In the initial state, the upper part of the support plate 43 is located in the groove of the support seat 12 and the upper end of the support plate 43 is not higher than the upper end of the support seat 12, which can make the ball core 20 smoothly transition to the support plate 43 and be received by it, and the gravity of the received ball core 20 will not act on the first elastic member 44; when the lifting plate 31 drives the push rod 41 to move upward, on the one hand, the lifting plate 31 drives the support plate 43 to move upward through the first elastic member 44, and under the action of the gravity of the ball core 20, the first elastic member 44 is in a compressed state and can elastically support the ball core 20, on the other hand, the lifting plate 31 directly drives the push rod 41 to move upward, because the support plate 43 is elastically compressed, there is a height difference between the push rod 41 and the support plate 43, and the positioning plate 42 is guaranteed to expand outward to limit and fix the ball core 20;

[0113] As explained, the upward moving height of the support plate 43 can also be limited, that is, after the support plate 43 moves upward for a certain distance, it cannot move further through the limit ring. The limit ring can be installed in the groove of the support seat 12. The lifting plate 31 continues to move to compress the first elastic member 44 and at the same time drives the push rod 41 to continue upward, so that the height difference between the support plate 43 and the push rod 41 is larger, thereby ensuring that the positioning plate 42 limits and fixes the ball core 20.

[0114] In some examples of the present invention, as Figure 5 , Figure 7 shown, the positioning assembly 50 further has: a positioning cylinder 51 and a second elastic member 53;

[0115] The positioning cylinder 51 is connected to the fixed base 11 through a fixing plate 13;

[0116] One end of the guide rod 54 slides inside the positioning cylinder 51, and a positioning wheel 55 with a vertically arranged axis is rotated at the other end. The output end of the first driving member 52 is located inside the positioning cylinder 51;

[0117] Both ends of the second elastic member 53 are respectively connected to the output end of the first driving member 52 and one end of the guide rod 54, and can be in a tensioned and compressed state;

[0118] Specifically, the lower end of the fixing plate 13 can be fixedly connected to the fixed base 11 by means of bolts or the like; the positioning cylinder 51 is installed on the fixing plate 13 with adjustable height, and is used to match ball cores 20 of different sizes to ensure that the guide rod 54 can be inserted into the flow channel of the ball core 20;

[0119] The first driving member 52 can be a hydraulic cylinder or an electric cylinder or other structures. A second elastic member 53 is connected between its output end and the guide rod 54. It should be noted that the second elastic member 53 can be in a compressed and tensioned state;

[0120] In the initial state, under the action of the first driving member 52, the second elastic member 53 can be tensioned to drive the guide rod 54 away from the ball core 20; when straightening treatment is performed, the output end of the first driving member 52 drives the second elastic member 53 and the guide rod 54 to approach the ball core 20. The second elastic member 53 is in a compressed state, so that the guide rod 54 is in elastic contact with the periphery of the ball core 20. This elastic contact can ensure that after the ball core 20 rotates a certain angle, the positioning wheel 55 on the guide rod 54 can be smoothly inserted into the flow channel of the ball core 20;

[0121] In addition, the axis of the positioning wheel 55 is vertically arranged. In the top view, the positioning wheel 55 can be tangent to the outer circular contour of the ball core 20 to avoid damage to the ball core 20 by the guide rod 54.

[0122] As an example of the rotating assembly 60, as Figures 5 to 7 shown, the rotating assembly 60 further has: a second driving member 61, a connecting rod 62, and a support cylinder 64;

[0123] Both ends of the connecting rod 62 are respectively rotatably connected to the rotating wheel 63 and the output end of the second driving member 61, and the middle part is slidably connected to the support cylinder 64; the support cylinder 64 is rotatably installed on the connecting plate 65 located at the guide rod 54;

[0124] Among them, the double output ends of the second driving member 61 are respectively connected to the connecting rods 62 arranged up and down;

[0125] Specifically, the second driving member 61 can be a cylinder with a dual-output structure and is fixed on the guide rod 54 or the positioning cylinder 51 through a connecting plate 65;

[0126] In the initial state, under the action of the second driving member 61, the angle between adjacent upper and lower connecting rods 62 is relatively large, and the adjacent upper and lower rotating wheels 63 are far away from each other, so as to avoid contacting the ball core 20. When the rotating assembly 60 operates, the second driving member 61 operates, and the output end drives the connecting rod 62 to be adjusted. The angle between adjacent upper and lower connecting rods 62 decreases, and the adjacent upper and lower rotating wheels 63 approach each other and can be in extrusion contact with the circumferential side of the ball core 20; in this example, the rotation of the rotating wheel 63 close to and away from the ball core 20 is realized by the opening and closing of the adjacent upper and lower connecting rods 62. The forces exerted by the rotating wheels 63 on the ball core 20 are all directed towards the ball center, and the clamping force is more stable, which is suitable for the rotation of the ball core 20 with a larger size;

[0127] The support cylinder 64 is movably connected to the connecting plate 65, and this movement can ensure that when the second driving member 61 operates, the connecting rod 62 can be adaptively adjusted. Preferably, the connecting rod 62 is slidably connected to the support cylinder 64, and the support cylinder 64 is rotatably connected to the connecting plate 65; in addition, the connecting plate 65 can be installed on the guide rod 54 or the positioning cylinder 51.

[0128] As another example of the rotating assembly 60, as Figure 8 shown, the rotating assembly 60 further includes a third driving member 66 and an arc plate 67;

[0129] The third driving member 66 is installed on the positioning cylinder 51 through the connecting plate 65, and the output end is connected to the arc plate 67 and drives the arc plate 67 to approach and move away from the ball core 20;

[0130] A plurality of rotating wheels 63 are rotatably connected to the arc plate 67;

[0131] Specifically, the arc plate 67 can be a spherical shell structure to ensure that a plurality of rotating wheels 63 can act on the circumferential side of the ball core 20 at the same time. A through hole is provided in the middle of the arc plate 67 for the guide rod 54 and the positioning wheel 55 to pass through; the second driving member 61 can be a cylinder or an electric cylinder with a traditional structure; in this example, after the third driving member 66 is started, it drives the arc plate 67 to move horizontally left and right to approach and move away from the ball core 20. The forces exerted by the rotating wheels 63 on the ball core 20 are arranged horizontally, and the ball core 20 is positioned by clamping from left and right. For ball cores 20 of different sizes, the positions of a plurality of rotating wheels 63 on the same arc plate 67 need to be adjusted, which is suitable for the rotation of ball cores 20 with medium and small sizes.

[0132] In some examples of the present invention, the device for straightening the ball core of the T-shaped ball valve further includes: a pair of first sensors 81 respectively connected to the controller, and a second sensor;

[0133] A pair of first sensors 81 are respectively installed at one end of the guide rod 54 close to the ball core 20, and are used to monitor whether the guide rod 54 is located in the flow channel of the ball core 20;

[0134] The second sensor is used to monitor whether the slot on the ball core 20 is in the forward position;

[0135] Wherein, when one of the guide rods 54 is located in the flow channel of the ball core 20, the controller receives the signal and controls the action of the rotating assembly 60; when a pair of guide rods 54 are located in the flow channel of the ball core 20 and the slot of the ball core 20 is not in the forward position, the controller receives the signal and controls the action of the support base 12;

[0136] Specifically, the first sensor 81 can be a pressure sensor or a distance sensor. Taking the pressure sensor as an example, when one end of the guide rod 54 contacts the ball core 20 and is embedded into the flow channel of the ball core 20 as the ball core 20 rotates, the elastic force of the second elastic member 53 decreases, the pressure acting on the guide rod 54 decreases, and the pressure sensor transmits the signal to the controller. When the controller monitors that the pressure signals of a pair of pressure sensors both decrease, it indicates that the flow channel arrangement of the ball core 20 is structure, and the controller does not control the action of the rotating assembly 60. When the controller monitors that the pressure signal of one of the pressure sensors decreases, it indicates that the flow channel arrangement of the ball core 20 is or structure, and the controller controls the action of the rotating assembly 60;

[0137] The second sensor can be a distance sensor or a groove type photoelectric sensor. When the flow channel of the ball core 20 is corrected to structure, the second sensor is used to monitor the position of the slot on the ball core 20. For example, it judges whether the slot is in the forward position by detecting the optical path or distance occlusion. When it is in the reverse position, the controller can control the rotating support base 12 to adjust so that the groove is in the forward position.

[0138] In some examples of the present invention, as Figure 9 shown, the outlet of the feeding assembly is located at the support plate 43, and there are also a plurality of support plates at the bottom end of the feeding plate 71;

[0139] The plurality of support plates are arranged at intervals along the moving direction of the ball core 20, and each support plate is driven to move reciprocally, and the moving direction forms an angle with the moving direction of the ball core 20;

[0140] Specifically, one end of the feed plate 71 is rotatably connected to one end of the telescopic assembly; the telescopic assembly may be a telescopic rod, or may have a first rod, a second rod, and a sleeve, the sleeve being installed between the first rod and the second rod with mutually reverse threads, and the first rod and the second rod being brought closer to or farther from each other by rotating the sleeve, thereby achieving the adjustability of the feed plate 71, and baffles may be provided on both sides of the feed plate 71 to limit the ball core 20, and the outlet end is a shrinking structure, which can ensure that the ball core 20 is received by the support plate 43 in a fixed position;

[0141] As an embodiment, the support plate can be divided into a first support plate 72 and a second support plate 72. The first support plate 72 and the second support plate 72 are reciprocated by a driving assembly, and the reciprocating direction is perpendicular to the moving direction of the ball core 20. For example, the driving assembly is a crank slider structure, and the slider is installed on the first support plate 72 and connected to the second support plate 72 through a linkage structure, thereby realizing the reciprocating movement of the first support plate 72 and the second support plate 72. The purpose is to increase the shaking between the support plate and the ball core 20 when the ball core 20 rolls, so as to ensure that the flow channel on the ball core 20 faces downward.

[0142] As explained, the reciprocating frequency and speed of the support plate should not be too large to prevent the ball core 20 with the flow channel facing downward from turning over again.

[0143] The present invention provides a method for using a T-type ball valve ball core correction device, such as Figure 10 As shown, the specific steps include:

[0144] S1, initial state, the guide rod 54 and the plurality of rotating wheels 63 are away from the ball core 20; the push rod 41 is at the lower limit position, at this time the positioning plate 42 is retracted close to the push rod 41, and the push rod 41 is hidden in the support plate 43, which can ensure that the support plate 43 can normally receive the ball core 20;

[0145] S2, the core 20 is placed in the feed assembly for pretreatment, so that one of the flow channels of the core 20 is facing downward and used as a support. After the pretreatment of the feed assembly, the flow channel structure of the core 20 is Three forms, and there is an angle deviation relative to the main view;

[0146] S3, the support plate 43 on the support seat 12 receives the ball core 20 with the flow channel facing downward, the lifting assembly 30 drives the push rod 41 to move upward, the positioning plate 42 moves upward with the push rod 41 and is located in the flow channel of the ball core 20, and gradually expands outward to contact the inner wall of the flow channel of the ball core 20 with a smaller angle, when the push rod 41 moves to the upper limit position, multiple positioning plates 42 expand outward to squeeze the inner wall of the flow channel of the ball core 20 to complete the automatic limit fixation of the ball core 20;

[0147] S3, when the ball core 20 is limited and fixed, the guide rods 54 located on both sides of the ball core 20 are driven to approach the ball core 20 and elastically contact with the peripheral surface of the ball core 20, and then the support seat 12 is driven to rotate, so that the ball core 20 rotates relative to the guide rods 54;

[0148] When the pair of guide rods 54 are both embedded in the flow channel of the ball core 20, it means that the flow channel arrangement of the ball core 20 is structure;

[0149] When one of the guide rods 54 is embedded in the flow channel of the ball core 20, it means that the flow channel arrangement of the ball core 20 is or Then the rotating assembly 60 moves, the rotating wheel 63 synchronously approaches the ball core 20 and contacts it, the top rod 41 returns to the initial state to release the limit fixation, at least one rotating wheel 63 is driven to rotate, driving the ball core 20 to rotate 90°, so that the flow channel of the ball core 20 is corrected to structure;

[0150] S4, the flow channel of the ball core 20 is adjusted to the correct After the structure is completed, the ball core 20 returns to the initial state, and the support plate 43 receives the corrected ball core 20, so that the ball core 20 can continue to be transported or transferred;

[0151] If the groove on the ball core 20 for positioning the valve stem is in the reverse direction, the support seat 12 can be slowly rotated to adjust the groove so that it is in the forward position.

[0152] The above text describes in detail an exemplary implementation of a correction device for a T-type ball valve ball core proposed in the present invention with reference to a preferred embodiment. However, those skilled in the art will appreciate that, without departing from the concept of the present invention, various modifications and variations may be made to the above specific embodiments, and various technical features and structures proposed in the present invention may be combined in various ways without exceeding the protection scope of the present invention, which is determined by the appended claims.

Claims

1. A T-type ball valve ball core correction device, characterized in that: include: A feed assembly having a feed plate (71) with adjustable tilt; The feed plate (71) can convert the rolling state of the ball core (20) into a supporting state with the flow channel facing downward; A support seat (12) is driven to rotate and is mounted on the fixed base (11); A fixing assembly (40) is connected to the support seat (12) and rotates with it, and comprises a support plate (43) and a push rod (41); The support plate (43) is used to receive the ball core (20) with the flow channel facing downwards. The middle part of the push rod (41) slides through the support plate (43), the lower end is connected to the lifting assembly (30), and the upper part is provided with a plurality of positioning plates (42) that expand outwards and contract inwards relative to the axis of the push rod (41); When the push rod (41) moves downward to the limit position, the positioning plate (42) contracts inwardly to be close to the push rod (41) and the upper end of the push rod (41) does not exceed the upper end surface of the support plate (43); when the push rod (41) moves upward to the limit position, the positioning plate (42) expands outwardly to contact and fix with the inner wall of the flow channel of the ball core (20); A pair of adjustment mechanisms are symmetrically located on both sides of the fixed component (40) and connected to the fixed base (11), each adjustment mechanism comprising: a positioning component (50) and a rotating component (60); The positioning assembly (50) has a guide rod (54) which is elastically arranged and driven to move closer to and farther from the ball core (20); wherein when the guide rod (54) is close to the ball core (20), the guide rod (54) can be inserted into the flow channel of the ball core (20); The rotating assembly (60) has a plurality of rotating wheels (63) arranged in an array and capable of being driven to synchronously approach and move away from the ball core (20); The array size is larger than the flow channel diameter of the ball core (20), the axis of the rotating wheel (63) is perpendicular to the axis of the top rod (41), and at least one rotating wheel (63) is driven to rotate.

2. A T-type ball valve ball core correction device according to claim 1, characterized in that: The lower end of the positioning plate (42) is rotatably connected to the guide rod (54) and is arranged with a heavy weight outward; An inverted second conical surface (431) is provided on the upper end surface of the support plate (43); When the push rod (41) moves upward, the push rod (41) is biased to expand outward, and when the push rod (41) moves downward, the outer side surface of the positioning plate (42) contacts the second conical surface (431) and gathers and shrinks inward.

3. A T-type ball valve ball core correction device according to claim 2, characterized in that: An inverted first conical surface (411) is provided on the upper portion of the guide rod (54); The sides of the positioning plate (42) close to and away from the guide rod (54) are respectively a first inclined surface and a second inclined surface; the first inclined surface matches the first conical surface (411), and the second inclined surface matches the second conical surface (431); An elastic pad (421) is provided on the side of the positioning plate (42) that contacts the inner wall of the flow channel of the ball core (20).

4. A T-type ball valve ball core correction device according to any one of claims 1 to 3, characterized in that: The lifting assembly (30) has a lifting plate (31) that is driven to move up and down; Wherein, the push rod (41) is installed on the lifting plate (31); The cross-sectional outer contour of the support plate (43) is a T-shaped structure; the upper portion of the support plate (43) is located in the groove of the support seat (12) and the upper end of the support plate (43) is not higher than the upper end of the support seat (12); the lower portion is connected to the support seat (12) via a key; and a first elastic member (44) is provided between the lower end and the lifting plate (31).

5. The device for correcting the ball core of a T-type ball valve according to claim 1, characterized in that: The positioning assembly (50) further comprises: a first driving member (52), a positioning cylinder (51) and a second elastic member (53); The positioning cylinder (51) is connected to the fixed base (11) via a fixed plate (13); One end of the guide rod (54) is slidably located in the positioning cylinder (51), and the other end is rotated by a positioning wheel (55) whose axis is vertically arranged, and the output end of the first driving member (52) is located in the positioning cylinder (51); The two ends of the second elastic member (53) are respectively connected to the output end of the first driving member (52) and one end of the guide rod (54), and can be in a tensioned and compressed state.

6. A T-type ball valve ball core correction device according to claim 5, characterized in that: The rotating assembly (60) further comprises: a second driving member (61), a connecting rod (62) and a supporting cylinder (64); The two ends of the connecting rod (62) are rotatably connected to the rotating wheel (63) and the output end of the second driving member (61), respectively, and the middle part is slidably connected to the supporting tube (64); the supporting tube (64) is rotatably mounted on the connecting plate (65); The dual output ends of the second driving member (61) are respectively connected to upper and lower connecting rods (62).

7. The device for correcting the ball core of a T-type ball valve according to claim 5, characterized in that: The rotating assembly (60) further comprises a third driving member (66) and an arc-shaped plate (67); The third driving member (66) is installed on the positioning cylinder (51) through the connecting plate (65), and the output end is connected to the arc plate (67) and drives the arc plate (67) to approach and move away from the ball core (20); A plurality of rotating wheels (63) are rotatably connected to the arc-shaped plate (67).

8. A device for correcting a ball core of a T-type ball valve according to any one of claims 5 to 7, characterized in that: It also includes: a pair of first sensors (81) and a second sensor respectively connected to the controller; A pair of first sensors (81) are respectively mounted on one end of the guide rod (54) close to the ball core (20) and are used to monitor whether the guide rod (54) is located in the flow channel of the ball core (20); The second sensor is used to monitor whether the slot on the ball core (20) is located in the positive position; When one of the guide rods (54) is located in the flow channel of the ball core (20), the controller receives a signal and controls the movement of the rotating assembly (60); when a pair of guide rods (54) are located in the flow channel of the ball core (20), the controller receives a signal and controls the rotating assembly (60) not to move; When the slot of the ball core (20) is not in the positive position, the controller receives a signal and controls the action of the support seat (12).

9. A device for correcting a ball core of a T-type ball valve according to any one of claims 5 to 7, characterized in that: The outlet of the feed assembly is located at the support plate (43), and also has a plurality of support plates located at the bottom end of the feed plate (71); A plurality of support plates are arranged at intervals along the moving direction of the ball core (20), each support plate is driven to reciprocate, and the reciprocating direction forms an angle with the moving direction of the ball core (20).

10. A method for using the device for correcting the ball core of a T-type ball valve according to claim 1, characterized in that: The specific steps include: S1, initial state, the guide rod (54) and the plurality of rotating wheels (63) are away from the ball core (20); the push rod (41) is located at the lower limit position, at which time the positioning plate (42) is retracted to be close to the push rod (41), and the push rod (41) is hidden in the support plate (43), so as to ensure that the support plate (43) can normally receive the ball core (20); S2, the ball core (20) is placed in a feed assembly for pretreatment, so that one of the flow channels of the ball core (20) faces downward and is supported by the feed assembly. After pretreatment by the feed assembly, the flow channel structure of the ball core (20) is Three forms, and there is an angle deviation relative to the main view; S3, the support plate (43) on the support seat (12) receives the ball core (20) with the flow channel facing downward, the lifting assembly (30) drives the push rod (41) to move upward, the positioning plate (42) moves upward with the push rod (41) to be located in the flow channel of the ball core (20), and gradually expands outward to contact the inner wall of the flow channel of the ball core (20) at a smaller angle, and when the push rod (41) moves to the upper limit position, multiple positioning plates (42) expand outward to squeeze the inner wall of the flow channel of the ball core (20) to complete the limiting fixation of the ball core (20); S3, when the ball core (20) is limited and fixed, the guide rods (54) respectively located on both sides of the ball core (20) are driven to approach the ball core (20) and elastically contact with the peripheral surface of the ball core (20), and then the support seat (12) is driven to rotate, so that the ball core (20) rotates relative to the guide rods (54); When the pair of guide rods (54) are both embedded in the flow channel of the ball core (20), the flow channel arrangement of the ball core (20) is as follows: structure; When one of the guide rods (54) is embedded in the flow channel of the ball core (20), the flow channel arrangement of the ball core (20) is as follows: or The rotating assembly (60) then moves, the rotating wheel (63) synchronously approaches the ball core (20) and contacts it, the top rod (41) releases the limit fixation, and at least one rotating wheel (63) is driven to rotate, driving the ball core (20) to rotate (90) degrees, so that the flow channel of the ball core (20) is corrected to structure; S4, the flow channel of the ball core (20) is adjusted to be correct After the structure is completed, the ball core (20) returns to the initial state, and the support plate (43) receives the corrected ball core (20), so that the ball core (20) can continue to be transported or transferred; If the groove on the ball core (20) for positioning the valve stem is in the reverse direction, the support seat (12) can be slowly rotated to adjust the groove so that it is in the forward position.

Images