Ball screening and supplying system and method

Abstract

The invention relates to the technical field of bearings, in particular to a ball screening and supplying system and method. The system comprises a storage assembly used for storing and providing the balls and a screening assembly. The screening assembly comprises a second screening unit. An outlet of the storage assembly and the second screening unit are sequentially communicated to form a ball supply channel. The second screening unit comprises a second screening body, a first side edge part and a second side edge part. And the first side edge part and the second side edge part are connected with the second screening body respectively and are arranged on the two sides of the supply channel. And the strip-shaped opening between the first side edge part and the second side edge part forms a supply channel. The minimum interval of the long-strip-shaped openings is gradually increased to a set value in the supply direction of the supply channel, and the set value is kept to a set length. Therefore, the problem that the ball outer diameter detection efficiency is too low is solved.

Description

Technical Field

[0001] The present invention relates to the field of bearing technology, and in particular to a ball screening and supplying system and method. Background Art

[0002] Balls can be used between the inner and outer rings of a bearing to ensure smooth relative rotation. Before installing the balls between the inner and outer rings, the outer diameter of the balls is usually tested to ensure assembly quality. Only when the actual diameter of the balls is within the designed diameter range will the balls be installed between the inner and outer rings.

[0003] Currently, in small-batch production, the outer diameter of balls is measured using an outside micrometer. In large-scale production, a coordinate measuring machine (CMM) is used, with each ball positioned on a locating block before measurement. However, these methods only measure the outer diameter of a single ball at a time, and those that do not meet the standard are rejected, making them inefficient. Summary of the Invention

[0004] In order to solve the problem of low efficiency in detecting ball outer diameters, the present invention provides a ball screening and supplying system and method.

[0005] In a first aspect, the present invention provides a ball screening and supply system, the ball screening and supply system comprising:

[0006] A material storage component, used for storing and providing the balls;

[0007] A screening assembly, the screening assembly comprising a second screening unit; the outlet of the material storage assembly and the second screening unit are sequentially connected to form a supply channel for the balls;

[0008] The second screening unit includes a second screening body, a first side edge portion, and a second side edge portion; the first side edge portion and the second side edge portion are respectively connected to the second screening body and are arranged on both sides of the supply channel; a long strip opening formed between the first side edge portion and the second side edge portion constitutes the supply channel; the minimum spacing of the long strip opening gradually increases to a set value along the supply direction of the supply channel and maintains the set value to a set length;

[0009] The ball screening and supply system includes a screening state; the screening state includes that when the ball rolls on the elongated opening, the minimum distance D2 where its outer spherical surface abuts the first side edge portion and the second side edge portion respectively increases gradually.

[0010] In some embodiments, the screening state also includes a plurality of the balls supplied by the material storage component being adjacent to each other and abutting against each other and rolling onto the elongated opening.

[0011] In some embodiments, the screening assembly further comprises a first screening unit; the outlet of the material storage assembly, the first screening unit, and the second screening unit are sequentially connected to form a supply channel for the balls; the first screening unit comprises a first screening body, a first side wall, and a second side wall; an end of the first screening body away from the outlet of the material storage assembly is connected to the second screening body; the first side wall and the second side wall are respectively connected to the first screening body and are arranged on both sides of the supply channel; a space formed between the first side wall and the second side wall constitutes the supply channel;

[0012] The screening state includes that when the ball rolls on the spacing space, the minimum distance D1 where the outer spherical surface of the ball abuts against the first side wall and the second side wall is smaller than D2.

[0013] In some embodiments, the minimum distance D1 is a fixed value.

[0014] In some embodiments, α1≥α2; wherein α1 is the minimum angle between the supply channel formed between the first side wall and the second side wall and a set horizontal plane; α2 is the minimum angle between the supply channel formed between the first side edge and the second side edge and the set horizontal plane.

[0015] In some embodiments, the ball screening and supply system includes a counting assembly; the counting assembly includes a second driving portion and a counting unit; the second driving portion is drivingly connected to the counting unit;

[0016] The standby state of the ball screening and supply system includes the outlet of the material storage assembly being connected to the channel in the counting unit, the balls in the material storage assembly moving into the channel in the counting unit, and the channel in the counting unit being disconnected from the elongated opening;

[0017] The screening state also includes the second driving part driving the counting unit to move, so that the outlet of the material storage component is disconnected from the channel inside the counting unit, and the channel inside the counting unit is connected to the long strip opening, so that the ball in the channel inside the counting unit moves to the long strip opening.

[0018] In some embodiments, the counting assembly further comprises a collection hopper;

[0019] The screening state also includes the channel of the counting component being connected to the elongated opening through the collecting hopper, so that the balls in the channel in the counting unit move to the elongated opening through the collecting hopper.

[0020] In some embodiments, the material storage assembly includes a material storage unit, a lifting unit, and a conveying unit; the material storage unit is used to store and provide the balls; the conveying unit is connected and communicated with the material storage unit; the lifting unit moves, so that the lifting unit, the conveying unit, and the second screening unit are connected in sequence to form a supply channel for the balls;

[0021] The screening state further includes the lifting unit moving, so that the balls on the lifting unit move to the long strip opening through the conveying unit.

[0022] In some embodiments, the conveying unit includes a conveying tube, a detection hole, and a monitor; the detection hole extends from the outer circumference of one side of the conveying tube to the outer circumference of the other side of the conveying tube; the lifting unit moves to sequentially connect the lifting unit, the conveying tube, and the second screening unit to form a supply channel for the balls; the monitoring ray emitted by the monitor enters the conveying tube through the detection hole; the minimum angle between the monitoring ray and the central axis of the conveying tube around the detection hole is within a set range;

[0023] The screening state also includes the lifting unit moving, so that the balls on the lifting unit are moved to the long strip opening through the conveying unit, and the balls pass through the monitoring rays.

[0024] In a second aspect, the present invention provides a ball screening and supply method, which is applied to any of the ball screening and supply systems in the first aspect, and includes:

[0025] Based on the screening instruction trigger, the stocking component outputs the balls to the supply channel;

[0026] The ball rolls on the long strip opening based on the ball moving to respectively abut against the first side edge portion and the second side edge portion;

[0027] Based on the diameter of the ball being less than or equal to a set value, the ball falls from the strip-shaped opening at a distance of the set value;

[0028] Based on the diameter of the ball being greater than the set value, the ball moves out from the outlet on the elongated opening.

[0029] To solve the problem of low efficiency in ball outer diameter detection, the present invention has the following advantages:

[0030] The balls are stored and provided through the material storage component, and the outlet of the material storage component is connected with the second screening unit of the screening component in sequence to form a ball supply channel, in which the balls can roll; the first side edge and the second side edge of the second screening unit are connected with the second screening body and are located on both sides of the supply channel, and the long strip opening formed by the two constitutes the supply channel, and the minimum spacing thereof gradually increases to a set value along the direction of the supply channel, and maintains the set value to a set length (5% to 15% of the total length of the supply channel), and this part constitutes the set screening channel. When the ball is in the screening state and rolls on the elongated opening, the minimum distance D2 between the outer spherical surface and the first and second side edges gradually increases, so that the position where the first and second side edges abut the outer spherical surface of the ball are closer and closer to the center of the ball. The length of contact between the two during one rotation of the ball gradually decreases, thereby reducing the speed of the ball center rolling along the length direction of the elongated opening. When a ball with a smaller outer diameter rolls into the set screening channel, the set screening channel has sufficient length, so even if its speed is too fast, it can more effectively fall along the thickness direction of the second screening body to complete the screening. Balls with qualified outer diameters roll to the end of the elongated opening away from the storage component and then fall to the designated position. At the same time, this method allows the screening component 30 to output multiple balls to the elongated opening at a time, and screen the outer diameters of multiple balls at the same time, thereby improving efficiency and solving the problem of low ball outer diameter detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram showing a first perspective of a ball screening and supply system according to an embodiment is shown;

[0032] Figure 2 A schematic top view of a ball screening and supply system according to an embodiment is shown;

[0033] Figure 3 A schematic front view of a ball screening and supply system according to an embodiment is shown;

[0034] Figure 4 A second perspective diagram of a ball screening and supply system according to an embodiment is shown;

[0035] Figure 5 A schematic diagram of a delivery pipe and a detection hole of a ball screening supply system according to an embodiment is shown;

[0036] Figure 6 A schematic diagram of a screening component of a ball screening and supply system according to an embodiment is shown;

[0037] Figure 7 A cross-sectional view of a screening assembly of a ball screening supply system according to one embodiment is shown;

[0038] Figure 8A cross-sectional view of a counting unit of a ball screening and feeding system according to one embodiment is shown;

[0039] Figure 9 Shows a Figure 2 A partial enlarged view of

[0040] Figure 10 A schematic diagram showing a ball screening and supply method according to an embodiment.

[0041] Figure markings: 10 material storage assembly; 11 material storage unit; 111 material storage box; 112 material inlet; 113 material outlet; 12 lifting unit; 121 first driving part; 122 lifting part; 13 conveying unit; 131 conveying pipe; 132 detection hole; 133 monitor; 20 counting assembly; 21 second driving part; 22 counting unit; 221 counting body; 222 counting channel; 23 collecting bucket; 30 screening assembly; 31 first screening unit; 311 first screening body; 312 first side wall; 313 second side wall; 32 second screening unit; 321 second screening body; 322 first side edge; 323 second side edge. DETAILED DESCRIPTION

[0042] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0043] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0044] Before bearing assembly, to ensure stable operation, the outer diameter of the balls must be measured before they are installed in the bearing inner and outer rings. Current methods for measuring ball outer diameters typically include using an outside micrometer or a three-dimensional coordinate measuring machine. While these methods provide accurate results, they can only measure one ball at a time, making them inefficient.

[0045] Example 1:

[0046] This embodiment discloses a ball screening supply system, such as Figure 1 As shown, the ball screening and supply system includes a material storage component 10 and a screening component 30.

[0047] The storage component 10 can be used to store and provide balls; by storing and supplying the balls through the storage component 10, it can be ensured that the balls can continuously and stably enter the subsequent screening process, providing a sufficient material basis for the entire screening process.

[0048] The screening assembly 30 may include a second screening unit 32; Figure 6 、 Figure 7 As shown, the second screening unit 32 is close to one end of the stock assembly 10 (as shown in FIG. Figure 7 The left end shown in FIG. 34 may be higher than the other end of the second screening unit 32 (as shown in FIG. Figure 7 The outlet of the stock assembly 10 and the second screening unit 32 can be sequentially connected to form a ball supply channel. This sequential connection between the outlet of the stock assembly 10 and the second screening unit 32 allows the balls to move in an orderly manner along a predetermined path, ensuring the continuity of the screening process and providing a stable conveying path for subsequent screening operations.

[0049] like Figure 6 As shown, the second screening unit 32 may include a second screening body 321, a first side edge portion 322, and a second side edge portion 323; the first side edge portion 322 and the second side edge portion 323 may be connected to the second screening body 321 respectively, and may be arranged on both sides of the supply channel; the long strip opening formed between the first side edge portion 322 and the second side edge portion 323 may constitute a component of the supply channel; the minimum spacing of the long strip openings may gradually increase to a set value along the supply direction of the supply channel (i.e., as shown in FIG. Figure 2 As shown, it gradually increases from top to bottom to a set value; the set value can be slightly greater than or equal to the lower limit of the design value of the ball outer diameter, for example: the design value of the ball outer diameter is 30mm±0.1mm, then the lower limit of the design value of the ball outer diameter is 29.9mm, and the set value can be 29.9mm~29.95mm), and the set value can be maintained to a set length (the set length can be 5%~15% of the total length of the supply channel); the part of the supply channel with a width of the set value is the set screening channel. Through such a structural setting, when the ball with a smaller outer diameter rolls to the set screening channel, it can fall along the thickness direction of the second screening body 321 (that is, as shown in FIG. Figure 3 Even if the initial velocity of the balls is too high, they can still fall effectively due to the sufficient length of the screening channel, thus achieving the screening of the balls.

[0050] The ball screening and supply system may include a screening state; the screening state may include that when the ball rolls on the elongated opening, the minimum distance D2 at the position where its outer spherical surface abuts the first side edge portion 322 and the second side edge portion 323 respectively increases gradually; in the screening state, when the ball rolls on the elongated opening, the minimum distance D2 between the position where the outer spherical surface of the ball abuts the first side edge portion 322 and the position where the outer spherical surface of the ball abuts the second side edge portion 323 gradually increases, so that the abutting position is getting closer and closer to the center of the ball, and the length of the contact on the first side edge portion 322 and the second side edge portion 323 when the ball rolls one circle gradually decreases, thereby reducing the moving speed of the center of the ball along the length direction of the elongated opening, further allowing balls with smaller outer diameters to accurately fall from the set screening channel, and balls with qualified outer diameters to fall to the specified position after rolling to the end of the elongated opening away from the storage component 10, solving the problem that balls with smaller outer diameters cannot fall due to high speed and are mistakenly judged as qualified products. At the same time, this method allows the screening component 30 to output multiple balls toward the long strip opening at a time, while screening the outer diameters of multiple balls, thereby improving efficiency.

[0051] Furthermore, the screening state can also include a state in which multiple balls supplied by the stocking assembly 10 abut against each other and roll into the elongated opening. The position where two adjacent balls abut against each other is a deceleration abutment position. When multiple balls abut against each other and roll, the rolling directions of the adjacent balls are the same, but the movement directions at the deceleration abutment position are opposite, thereby reducing the rolling speed of the balls through friction. This structure can effectively prevent the balls from rolling too fast, causing balls with smaller outer diameters to quickly pass through the set screening channel without being separated, thereby avoiding the problem of misjudging qualified products.

[0052] Furthermore, if Figure 6 As shown, the screening assembly 30 may further include a first screening unit 31; the outlet of the stock assembly 10, the first screening unit 31, and the second screening unit 32 are sequentially connected to form a ball supply channel; the first screening unit 31 includes a first screening body 311, a first sidewall 312, and a second sidewall 313; the first screening body 311 is connected to the second screening body 321 at one end away from the outlet of the stock assembly 10; the first sidewall 312 and the second sidewall 313 are respectively connected to the first screening body 311 and are disposed on either side of the supply channel; the space formed between the first sidewall 312 and the second sidewall 313 constitutes the supply channel. The screening state may include that when a ball rolls in the space, the minimum distance D1 where the outer spherical surface of the ball abuts the first sidewall 312 and the second sidewall 313 is less than D2. Figure 9The dotted lines in the figure are schematic lines where the balls respectively abut against the first side wall 312 and the second side wall 313. Because the minimum distance D1 between the location where the outer spherical surface of the ball abuts the first side wall 312 and the location where the outer spherical surface of the ball abuts the second side wall 313 is smaller than the minimum distance D2 between the location where the outer spherical surface of the ball abuts the first side edge 322 and the location where the outer spherical surface of the ball abuts the second side edge 323, the rolling speed of the ball in the space is faster, allowing it to quickly catch up with the balls in the elongated opening and abut against them to slow down, thereby preventing the balls with smaller outer diameters from being effectively screened out due to excessive ball speed.

[0053] Furthermore, if Figure 2 As shown, the minimum spacing D1 between the position where the outer spherical surface of the ball abuts the first side wall 312 and the position where the outer spherical surface of the ball abuts the second side wall 313 can be set to a fixed value. By setting the minimum spacing D1 to a fixed value, the rolling speed of the balls in the interval space can be increased, so that they can move more quickly to abut against the balls in the long strip-shaped opening space, reduce the speed of the balls, and allow the balls with smaller outer diameters to fall when passing through the set screening channel, thereby accurately screening out the balls with smaller outer diameters. D1 can be 50% to 80% of the minimum value of D2, so that the balls can be reduced in the width direction of the first screening unit (i.e., as shown in FIG. 3 ) during the process of rolling between the first side wall 312 and the second side wall 313. Figure 2 The distance moved by the ball (in the left and right directions as shown) improves the stability of the ball rolling.

[0054] Furthermore, if Figure 7 As shown, the minimum angle α1 between the supply channel formed between the first side wall 312 and the second side wall 313 and the set horizontal plane can be greater than or equal to the minimum angle α2 between the supply channel formed between the first side edge portion 322 and the second side edge portion 323 and the set horizontal plane. This angular relationship increases the rolling speed of the balls between the first side wall 312 and the second side wall 313, allowing them to quickly catch up with and abut the balls in the elongated opening, thereby reducing the ball rolling speed and ensuring that balls with smaller outer diameters accurately fall into the set screening channel.

[0055] In other embodiments, Figure 1 、 Figure 2As shown, the ball screening and supply system may include a counting unit 22; the counting unit 22 includes a second driving unit 21 and a counting unit 22; and the second driving unit 21 is drivably connected to the counting unit 22. The preparation state of the ball screening and supply system may include the outlet of the material storage component 10 being connected to the channel of the counting unit 22, the balls in the material storage component 10 moving into the channel of the counting unit 22, and the connection between the channel in the counting unit 22 and the elongated opening being disconnected. The screening state may also include the second driving unit 21 driving the counting unit 22 to move, disconnecting the outlet of the material storage component 10 from the channel in the counting unit 22, and connecting the channel of the counting unit 22 to the elongated opening, allowing the balls in the channel of the counting unit 22 to move onto the elongated opening. This structure can accurately control the number of balls by adjusting the channel capacity in the counting unit 22, thereby ensuring the stability and accuracy of the screening process.

[0056] In other embodiments, Figure 8 As shown, the counting unit 22 may include a counting body 221 and a counting channel 222. The counting body 221 is disposed between the outlet of the stock assembly 10 and the second screening unit 32. The counting body 221 is drivingly connected to the second driving unit 21. The counting body 221 is slidably connected to the stock assembly 10. The counting channel 222 extends from the end of the counting body 221 near the outlet of the stock assembly 10 to the end of the counting body 221 near the second screening unit 32. The counting channel 222 can be used to accommodate a predetermined number of balls. The second driving unit 21 can drive the counting body 221 to move horizontally, controlling whether the counting channel 222 is connected to the outlet of the stock assembly 10, thereby adjusting the timing when the balls in the stock assembly 10 enter the counting channel 222. The second driving unit 21 can also drive the counting body 221 to move horizontally, controlling whether the counting channel 222 is connected to the elongated opening of the second screening unit 32, thereby adjusting the timing when the balls in the counting channel 222 enter the elongated opening of the second screening unit 32.

[0057] Furthermore, if Figure 3 As shown, the counting assembly 20 may further include a collection hopper 23. The screening state may also include the channel of the counting assembly 20 being connected to the elongated opening via the collection hopper 23, allowing the balls in the channel of the counting unit 22 to move through the collection hopper 23 and onto the elongated opening. The inner diameter of the collection hopper 23 gradually decreases from top to bottom, ensuring that only one ball enters the elongated opening from the bottom of the collection hopper 23 at a time. This minimizes the distance between adjacent balls, causing them to abut against each other and decelerate, allowing balls with smaller outer diameters to fall through the designated screening channel, thereby improving the success rate of screening balls with smaller outer diameters.

[0058] Furthermore, if Figure 4As shown, the stocking assembly 10 may include a stocking unit 11, a lifting unit 12, and a conveying unit 13. The stocking unit 11 is used to store and provide balls. The conveying unit 13 is connected to and communicates with the stocking unit 11. The lifting unit 12 moves, connecting the lifting unit 12, the conveying unit 13, and the second screening unit 32 in sequence, forming a ball supply channel. The screening state may also include the lifting unit 12 moving, causing the balls on the lifting unit 12 to move through the conveying unit 13 to the elongated opening. The lifting unit 12 may be positioned within the space enclosed by the stocking unit 11, with a downwardly concave groove disposed on the top surface of the lifting unit 12. The lifting unit 12 can be moved according to a predetermined program until the top surface of the lifting unit 12 is lower than the top surface of the balls in the storage unit 11, and the balls can roll into the grooves of the lifting unit 12. Then the lifting unit 12 can be moved upward to be connected with the conveying unit 13, so that the balls move from the lifting unit 12 through the conveying unit 13 to the long strip opening, thereby screening the balls and allowing the balls with smaller outer diameters to fall from the set screening channel.

[0059] In other embodiments, Figure 4 As shown, the storage unit 11 may include a storage box 111, an inlet 112, and an outlet 113. The storage box 111 may be used to store and provide balls. The inlet 112 and the outlet 113 may respectively penetrate the inner circumferential wall and the outer circumferential wall of the storage box 111. The inlet 112 and the outlet 113 are arranged at intervals. The inlet 112 may be used to input balls into the storage box 111. The lifting unit 12 may include a first driving part 121 and a lifting part 122; the lifting part 122 may be slidably connected to the storage box 111; the lifting part 122 may be drivingly connected to the first driving part 121. The top surface of the lifting part 122 is provided with a downwardly concave groove. The lifting part 122 can be driven by the first driving part 121 and moved according to a predetermined program until the top surface of the lifting part 122 is lower than the top surface of the balls in the storage unit 11, and the balls can roll into the groove of the lifting part 122. Then the lifting part 122 can move upward to connect with the discharge port 113, so that the balls move from the lifting part 122 through the discharge port 113 and the conveying unit 13 to the long strip opening in sequence, thereby performing the ball screening work and allowing balls with smaller outer diameters to fall from the set screening channel.

[0060] Furthermore, if Figure 3 As shown, the delivery unit 13 may include a delivery pipe 131, a detection hole 132, and a monitor 133; Figure 5As shown, the detection hole 132 extends from the outer circumference of one side of the conveying tube 131 to the outer circumference of the other side of the conveying tube 131. The lifting unit 12 moves, connecting the lifting unit 12, the conveying tube 131, and the second screening unit 32 in sequence, forming a ball supply channel. The monitoring radiation emitted by the monitor 133 enters the conveying tube 131 through the detection hole 132. The minimum angle between the monitoring radiation and the central axis of the conveying tube 131 surrounding the detection hole 132 is within a set range. The screening state may also include the movement of the lifting unit 12, causing the balls on the lifting unit 12 to pass through the conveying unit 13 to the elongated opening, while the balls pass through the monitoring radiation. If the monitoring radiation is perpendicular to the conveying tube 131 surrounding the detection hole 132, then the line connecting the centers of two adjacent balls in the conveying tube 131 surrounding the detection hole 132 will also be perpendicular to the monitoring radiation. This may cause the monitoring radiation to illuminate the abutment area between the two adjacent balls. However, this abutment area is relatively small, and some monitoring radiation may not reach this abutment area, resulting in erroneous monitoring results. For example, if there are balls in the delivery tube 131 around the detection hole 132, but the detection result shows no balls, this will interfere with normal operation. The setting range can be 80° to 40°. This setting method can minimize the monitoring radiation from reaching the abutment point between two adjacent balls in the delivery tube 131 around the detection hole 132, more effectively irradiating the balls directly and promoting stable ball screening.

[0061] Example 2:

[0062] This embodiment discloses a ball screening and supply method, which is applicable to any ball screening and supply system in the first embodiment. Figure 10 The ball screening and supply method includes steps S10 to S40, each of which is described in detail as follows:

[0063] Step S10, based on the screening instruction trigger, the material storage component 10 outputs the balls to the supply channel;

[0064] Step S20: When the ball moves to contact the first side edge 322 and the second side edge 323 respectively, the ball rolls on the long strip opening in a direction away from the material storage assembly 10 under the influence of gravity;

[0065] In step S30, based on the fact that the diameter of the ball is less than or equal to the set value, the ball falls from the portion of the long strip opening with a spacing of the set value to the bottom of the second screening unit 32, thereby screening out the balls with smaller outer diameters; wherein, the set value may be slightly greater than or equal to the lower limit of the design value of the ball outer diameter, for example: the design value of the ball outer diameter is 30mm±0.1mm, then the lower limit of the design value of the ball outer diameter is 29.9mm, and the set value may be 29.9mm~29.95mm.

[0066] In step S40, based on the diameter of the ball being greater than a set value, the ball is removed from the outlet of the elongated opening. The ball removed from the outlet of the elongated opening is judged to be qualified and can be used in subsequent production. The outlet of the elongated opening can be the end of the elongated opening away from the material storage assembly 10.

[0067] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A ball screening and supply system, characterized in that: The ball screening and supply system comprises: A material storage component, used for storing and providing the balls; A screening assembly, the screening assembly comprising a second screening unit; the outlet of the material storage assembly and the second screening unit are sequentially connected to form a supply channel for the balls; The second screening unit includes a second screening body, a first side edge portion, and a second side edge portion; the first side edge portion and the second side edge portion are respectively connected to the second screening body and are arranged on both sides of the supply channel; a long strip opening formed between the first side edge portion and the second side edge portion constitutes the supply channel; the minimum spacing of the long strip opening gradually increases to a set value along the supply direction of the supply channel and maintains the set value to a set length; The ball screening and supply system includes a screening state; the screening state includes that when the ball rolls on the elongated opening, the minimum distance D2 where its outer spherical surface abuts the first side edge portion and the second side edge portion respectively increases gradually.

2. A ball screening and supply system according to claim 1, characterized in that: The screening state also includes a plurality of balls supplied by the material storage component being adjacent to each other and abutting against each other and rolling on the long strip opening.

3. A ball screening and supply system according to claim 1, characterized in that: The screening assembly further comprises a first screening unit; the outlet of the material storage assembly, the first screening unit, and the second screening unit are sequentially connected to form a supply channel for the balls; the first screening unit comprises a first screening body, a first side wall, and a second side wall; an end of the first screening body away from the outlet of the material storage assembly is connected to the second screening body; the first side wall and the second side wall are respectively connected to the first screening body and are arranged on both sides of the supply channel; a space formed between the first side wall and the second side wall constitutes the supply channel; The screening state includes that when the ball rolls on the spacing space, the minimum distance D1 where the outer spherical surface of the ball abuts against the first side wall and the second side wall is smaller than D2.

4. A ball screening and supply system according to claim 3, characterized in that: The minimum distance D1 is a fixed value.

5. The ball screening and supply system according to claim 3, characterized in that: α1≥α2; wherein α1 is the minimum angle between the supply channel formed between the first side wall and the second side wall and the set horizontal plane; α2 is the minimum angle between the supply channel formed between the first side edge and the second side edge and the set horizontal plane.

6. The ball screening and supply system according to claim 1, characterized in that: The ball screening and supply system includes a counting assembly; the counting assembly includes a second driving part and a counting unit; the second driving part is drivingly connected to the counting unit; The standby state of the ball screening and supply system includes the outlet of the material storage assembly being connected to the channel in the counting unit, the balls in the material storage assembly moving into the channel in the counting unit, and the channel in the counting unit being disconnected from the elongated opening; The screening state also includes the second driving part driving the counting unit to move, so that the outlet of the material storage component is disconnected from the channel inside the counting unit, and the channel inside the counting unit is connected to the long strip opening, so that the ball in the channel inside the counting unit moves to the long strip opening.

7. A ball screening and supply system according to claim 6, characterized in that: The counting assembly also includes a collection bucket; The screening state also includes the channel of the counting component being connected to the elongated opening through the collecting hopper, so that the balls in the channel in the counting unit move to the elongated opening through the collecting hopper.

8. The ball screening and supply system according to claim 1, characterized in that: The material storage assembly includes a material storage unit, a lifting unit, and a conveying unit; the material storage unit is used to store and provide the balls; the conveying unit is connected and communicated with the material storage unit; the lifting unit moves so that the lifting unit, the conveying unit, and the second screening unit are connected in sequence to form a supply channel for the balls; The screening state further includes the lifting unit moving, so that the balls on the lifting unit move to the long strip opening through the conveying unit.

9. The ball screening and supply system according to claim 8, characterized in that: The conveying unit includes a conveying pipe, a detection hole, and a monitor; the detection hole extends from the outer circumference of one side of the conveying pipe to the outer circumference of the other side of the conveying pipe; the lifting unit moves so that the lifting unit, the conveying pipe, and the second screening unit are connected in sequence to form a supply channel for the balls; the monitoring ray emitted by the monitor enters the conveying pipe through the detection hole; the minimum angle between the monitoring ray and the central axis of the conveying pipe around the detection hole is within a set range; The screening state also includes the lifting unit moving, so that the balls on the lifting unit are moved to the long strip opening through the conveying unit, and the balls pass through the monitoring rays.

10. A ball screening and supply method, characterized in that: The ball screening and supply method is applied to a ball screening and supply system according to any one of claims 1 to 9, and the ball screening and supply method comprises: Based on the screening instruction trigger, the stocking component outputs the balls to the supply channel; The ball rolls on the long strip opening based on the ball moving to respectively abut against the first side edge portion and the second side edge portion; Based on the diameter of the ball being less than or equal to a set value, the ball falls from the strip-shaped opening at a distance of the set value; Based on the diameter of the ball being greater than the set value, the ball moves out from the outlet on the elongated opening.

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