Cleaning and feeding device of steel ball sorting equipment

Abstract

The utility model relates to a cleaning and feeding device of steel ball sorting equipment, which comprises a ball storage hopper used for placing steel balls to be detected, and a discharge port for the steel balls to roll out is arranged at the side part of the ball storage hopper; a first opening capable of being connected with the discharging opening is formed in the side wall, close to the ball storage hopper, of the cleaning box body, and a second opening allowing the steel balls in the cleaning box body to roll out is formed in the side wall, away from the ball storage hopper, of the cleaning box body; and the spraying assembly comprises a spraying arm, the spraying arm is arranged above the cleaning box body, and spraying holes are formed in the spraying arm. The cleaning device has the advantages that the steel balls can be fully cleaned, so that false detection of the surfaces of the steel balls due to surface pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel ball sorting equipment technical field especially relates to a kind of cleaning and feeding device of steel ball sorting equipment. BACKGROUND

[0002] Steel ball is a kind of surface smooth mirror surface reflection state mechanical fittings, often as the rolling body of various bearings, and its defect degree directly affects bearing precision, dynamic performance and service life.Steel ball surface quality as an important index to measure bearing quality, so it needs to be strictly detected.

[0003] For example, the Chinese utility model patent application No.CN201610457209.X (application publication No.CN105911064A) discloses a kind of steel ball detection equipment, including steel ball surface completely unfolding device and vision sensing system, steel ball surface completely unfolding device is equipped with the unfolding disc that does circumferential motion, wherein the working surface of unfolding disc is uniformly distributed with the through hole adapted to steel ball, the unfolding disc does circumferential motion, and also keeps steel ball doing variable axis rotation through reciprocating mechanism and rotary motion mechanism set by steel ball surface completely unfolding device.The vision sensing system includes vision sensor, camera and image processing system, vision sensor transmits to image processing system by capturing the slight change of light reflected by ball surface, steel ball surface completely unfolding device is also provided with discharge port controlled by the counting bit set by image processing system.Under the condition that unfolding disc stepping motor is not moved, steel ball variable axis rotates several times, so that the spherical surface of steel ball is completely unfolded, vision sensor transmits to image processing system by capturing the slight change of light reflected by ball surface, and the surface defect of steel ball is determined by the program set by image processing system, so as to automatically identify whether steel ball is qualified;Qualified steel ball and unqualified steel ball are automatically entered into the corresponding hopper of qualified steel ball and unqualified steel ball through discharge port set by image processing system;Under the control of image processing system, the surface quality of steel ball is automatically detected by identifying the surface defect of steel ball, and qualified product and unqualified product are automatically separated.

[0004] The steel ball detection equipment in the above patent application also has some deficiencies, and the steel ball detection equipment does not perform cleaning or cleaning treatment before unfolding detection of steel ball, which can easily lead to false detection of the surface of steel ball without defect due to surface pollution, and seriously affects the detection and sorting efficiency of steel ball.

[0005] Therefore, the feeding device of existing steel ball sorting equipment needs to be further improved. UTILITY MODEL CONTENT

[0006] The utility model solves the technical problem in the prior art, and provides a cleaning and feeding device of steel ball sorting equipment, which can fully clean steel ball and reduce false detection of steel ball surface due to surface pollution.

[0007] The utility model discloses a technical scheme for solving the above technical problems, a kind of cleaning and feeding device of steel ball sorting equipment, it include,

[0008] Ball storage hopper, for placing the steel ball to be detected, the side of this ball storage hopper has the discharge outlet for the steel ball to roll out;

[0009] Cleaning box body, the first opening that can be connected with the discharge outlet is opened on the side wall adjacent to the ball storage hopper of this cleaning box body and the second opening for the steel ball in this cleaning box body to roll out is opened on the side wall away from the ball storage hopper;

[0010] Spray assembly, including spray arm, the spray arm is located above the cleaning box body, and the spray arm is equipped with spray hole.

[0011] In order to carry out comprehensive cleaning to the steel ball about to roll out from the opening, the second opening is strip-shaped opening arranged along the width direction of the cleaning box body, the spray arm extends along the width direction of the cleaning box body and is arranged adjacent to the second opening, and the spray hole is arranged along the extension direction of the spray arm.

[0012] In order to simplify the structure of spray arm, the spray arm is equipped with water storage chamber with top opening, each spray hole is opened on the bottom wall of the water storage chamber, and the water storage chamber is also equipped with water supply connector for connecting with external water pipe at the top opening.

[0013] In order to enable the steel ball in ball storage hopper to roll into the cleaning box body from top to bottom in sequence, avoid affecting the cleaning effect due to excessive number of steel balls in the cleaning box body, the first opening of the cleaning box body is equipped with material stopping plate extending upward from the bottom wall of the cleaning box body.

[0014] In order to enable the steel ball to automatically roll forward under the action of its own gravity, the bottom wall of the cleaning box body is gradually inclined downward from the first opening to the second opening, and the bottom of the ball storage hopper is also inclined, and the discharge outlet is located at the lowest position of the bottom wall of the ball storage hopper.

[0015] In order to enable the steel ball to automatically roll forward to the detection area after cleaning, the second opening of the cleaning box body is connected with feeding frame, the feeding frame is equipped with detection channel for receiving the steel ball rolled out from the second opening of the cleaning box body, and the detection channel is gradually inclined downward along the forward direction of the steel ball.

[0016] In order to improve the cleaning and sorting efficiency of steel ball, the detection channel has at least two transverse and side-by-side arranged.

[0017] As an improvement, the end of the detection channel is also equipped with steel ball feeding mechanism for separating single steel ball in the detection channel.

[0018] In order to simplify the structure of the steel ball feeding mechanism, preferably, the steel balls are separated and fed in a lifting manner, specifically, the steel ball feeding mechanism comprises:

[0019] A fixed platform is provided with a first rolling groove on the top;

[0020] A lifting platform is located between the fixed platform and the end of the inspection channel and can move between the first position and the second position under the driving of the lifting driving mechanism, and the top of the lifting platform is provided with a second rolling groove, which gradually inclines downward along the forward direction of the steel ball;

[0021] When the lifting platform is in the above-mentioned first position state, the second rolling groove of the lifting platform is lower than the first rolling groove of the fixed platform and is connected with or lower than the end port of the inspection channel, so that the steel balls in the inspection channel can roll and stay in the second rolling groove of the lifting platform;

[0022] When the lifting platform is in the above-mentioned second position state, the second rolling groove of the lifting platform is higher than or connected with the first rolling groove of the fixed platform, so that the steel balls staying in the second rolling groove can roll to the first rolling groove of the fixed platform.

[0023] Compared with the prior art, the utility model has the advantages that: a cleaning box is arranged on one side of the ball storage hopper, a spraying assembly is arranged on the cleaning box, so that the steel balls can be cleaned in time after rolling out of the ball storage hopper, and the steel balls can be sent to the downstream for appearance detection after cleaning, thereby effectively reducing the occurrence of misjudgment caused by surface pollution of the steel balls and improving the efficiency of steel ball separation. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective structural schematic view of the full-automatic steel ball separation equipment of the utility model embodiment;

[0025] Figure 2 It is a perspective structural schematic view of the full-automatic steel ball separation equipment of the utility model embodiment from another angle;

[0026] Figure 3 It is a perspective structural schematic view of the full-automatic steel ball separation equipment of the utility model embodiment without the outer cover and other components;

[0027] Figure 4 It is a right view of the full-automatic steel ball separation equipment of the utility model embodiment without the counting and packaging unit;

[0028] Figure 5The vertical sectional view (cut along the conveying direction of the steel ball) of the full-automatic steel ball sorting equipment of the embodiment of the utility model after the counting and packaging unit is omitted;

[0029] Figure 6 The three-dimensional structure schematic view of the cleaning and feeding device of the embodiment of the utility model;

[0030] Figure 7 The vertical sectional view (cut along the conveying direction of the steel ball) of the cleaning and feeding device of the embodiment of the utility model;

[0031] Figure 8 The three-dimensional structure schematic view of the sorting and screening device of the embodiment of the utility model;

[0032] Figure 9 The vertical sectional view (cut along the conveying direction of the steel ball) of the sorting and screening device of the embodiment of the utility model (the lifting platform is at the first position);

[0033] Figure 10 The vertical sectional view (cut along the conveying direction of the steel ball) of the sorting and screening device of the embodiment of the utility model (the lifting platform is at the second position, and the qualified steel ball is rolled out of the detection hole and enters the first discharge frame);

[0034] Figure 11 The vertical sectional view (cut along the conveying direction of the steel ball) of the sorting and screening device of the embodiment of the utility model (the lifting platform is at the second position, and the unqualified steel ball is rolled out of the detection hole and enters the second discharge frame);

[0035] Figure 12 The three-dimensional structure schematic view of the appearance detection unit of the embodiment of the utility model;

[0036] Figure 13 The three-dimensional structure schematic view of the appearance detection unit of the embodiment of the utility model from another angle;

[0037] Figure 14 The three-dimensional structure schematic view of the steel ball feeding mechanism of the embodiment of the utility model;

[0038] Figure 15 The vertical sectional view (cut along the axial direction of the roller) of the appearance detection unit of the embodiment of the utility model;

[0039] Figure 16 The front view of the appearance detection unit of the embodiment of the utility model;

[0040] Figure 17 The three-dimensional structure schematic view of the counting and packaging device of the embodiment of the utility model;

[0041] Figure 18 The three-dimensional structure schematic view of the rotating disc assembly of the embodiment of the utility model. DETAILED DESCRIPTION

[0042] The utility model will be described in further detail below in connection with the drawings.

[0043] In the description and claims of the utility model, terms of direction, such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom" and the like, are used to describe various example structural parts and elements of the utility model, but these terms are used herein only for the purpose of convenient description, and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the utility model can be arranged in different directions, these terms of direction are only for illustration and should not be regarded as limitation, for example, "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0044] Figures 1-18 A preferred embodiment of the full-automatic steel ball sorting equipment of the utility model is shown. The full-automatic steel ball sorting equipment comprises a cleaning and feeding device, a sorting and screening device and a counting and packaging device. The sorting and screening device comprises a steel ball feeding mechanism 42, an appearance detection unit and a discharging rack. Specifically, a ball storage and inspection area, a detection area and a sorting and packaging area are sequentially arranged along the forward direction of the steel ball.

[0045] Referring to Figures 1-3 The cleaning and feeding device is arranged in the ball storage and inspection area. The sorting and screening device is arranged in the detection area, and is used for detecting the appearance of the steel ball and sorting and screening the qualified steel ball and the unqualified steel ball after detection. The counting and packaging device is arranged in the sorting and packaging area, and is used as a counting and packaging unit for counting and packaging the qualified steel ball.

[0046] Referring to Figures 5-7The cleaning and feeding device comprises a ball storage hopper 20, a cleaning box 30, and a spray arm 33 arranged on the cleaning box 30. The ball storage hopper 20 is used for placing the steel balls to be detected, and the bottom wall thereof is arranged in an inclined manner. The side of the ball storage hopper 20 is provided with a discharge port 21 for the steel balls to roll out, and the discharge port 21 corresponds to the lowest position of the bottom wall of the ball storage hopper 20. The cleaning box 30 is provided with a first opening 31 corresponding to the discharge port 21 on the side wall adjacent to the ball storage hopper 20, and a second opening 32 on the side wall away from the ball storage hopper 20, through which the steel balls in the cleaning box 30 roll out. The bottom wall of the cleaning box 30 is also arranged in an inclined manner, so that the steel balls can roll from the first opening 31 to the second opening 32 under the action of gravity. The second opening 32 is a strip-shaped opening arranged in the width direction of the cleaning box 30, wherein the width direction of the cleaning box 30 is perpendicular to the rolling or advancing direction of the steel balls in the cleaning box 30. The spray assembly comprises the spray arm 33 arranged above the cleaning box 30, and the spray arm 33 is provided with spray holes 331. The spray arm 33 is in a strip shape and is arranged in the width direction of the cleaning box 30. The spray arm 33 has a water storage chamber 330 with a top opening, and each spray hole 331 is arranged on the bottom wall of the water storage chamber 330. The water storage chamber 330 is further provided with a water supply connector 332 connected to an external water pipe at the top opening.

[0047] The cleaning box 30 is provided with a blocking plate 22 extending upward from the bottom wall of the cleaning box 30 at the first opening 31. After the blocking plate 22 is arranged at the first opening 31, the steel balls in the ball storage hopper 20 can be sequentially rolled into the cleaning box 30 from top to bottom, so as to avoid the cleaning effect being affected by too many steel balls in the cleaning box 30.

[0048] The cleaning and feeding device of the embodiment is provided with the cleaning box 30 on one side of the ball storage hopper 20, and the cleaning box 30 is provided with a spray assembly, so that the steel balls can be cleaned in time after rolling out of the ball storage hopper 20, and then sent to the downstream for appearance detection. Therefore, the occurrence of false detection caused by surface contamination of the steel balls can be effectively reduced, and the efficiency of steel ball sorting can be improved.

[0049] Referring to Figure 6 The ball storage and detection area is further provided with a feeding frame 40, one end of the feeding frame 40 is connected to the second opening 32 of the cleaning box 30, and the other end extends to the detection area and is connected to a steel ball feeding mechanism 42 of the detection area. The feeding frame 40 is provided with a detection channel 41 consistent with the extension direction of the feeding frame 40, and the detection channel 41 has at least two channels arranged in a transverse and side-by-side manner, Figure 6Eight detection channels 41 are shown. Each detection channel 41 is gradually inclined downward along the forward direction of the steel balls, so that the steel balls moving into the detection channel 41 can also move forward to the position of the steel ball feeding mechanism 42 under the action of their own gravity.

[0050] Referring to Figures 8-16 , the appearance detection unit of the sorting and screening device includes an unfolding device 5, a visual detection device 7, and a discharge rack. The steel ball feeding mechanism 42 is arranged on one side of the unfolding device 5 facing the feeding rack 40, and the discharge rack is arranged on the side away from the discharge rack. The unfolding device 5 includes a roller 51, a rolling shaft 52, a first driving mechanism 61, a second driving mechanism 62, and a third driving mechanism 63. The periphery of the sorting and screening device is also covered with a protective cover 55, as shown in Figure 1 and Figure 2 .

[0051] The top of the rack 10 is provided with two vertical plates 11 arranged opposite to each other, and the roller 51 is horizontally extended and rotatably arranged on the two vertical plates 11. As shown in Figure 16 , both ends of the roller 51 are rotatably supported in the corresponding shaft holes of the two vertical plates 11 through bearings 514. The first driving mechanism 61 includes a first motor arranged on the rack 10, and one end of the roller 51 penetrates the shaft hole of the vertical plate 11 and is connected with the output shaft of the first motor. The roller 51 can rotate around its own axis under the drive of the first motor. The roller 51 is axially hollow to form an installation channel 511, and the roller 51 has an installation opening 512 at the end away from the first motor, which penetrates the installation channel 511. The rolling shaft 52 can be rotated into the installation channel of the roller 51 from the installation opening 512. The roller 51 is also provided with a detection channel 513 penetrating from the outside to the inside in the radial direction to the installation channel 511, and the inner diameter of the detection channel 513 is slightly larger than the outer diameter of the steel ball to be detected.

[0052] The rolling shaft 52 is rotatably arranged in the installation channel 511 of the roller 51, and the extension direction of the rolling shaft 52 is consistent with the extension direction of the roller 51. The outer diameter of the main body of the rolling shaft 52 is slightly larger than the inner diameter of the installation channel of the roller 51, so that the rolling shaft 52 can freely rotate in the installation channel of the roller 51. During the rotation of the rolling shaft 52, it can contact the steel ball loaded into the detection channel 513 of the roller 51, thereby driving the steel ball to rotate in the detection channel 513. The two ends of the rolling shaft 52 respectively have a first rotating shaft 521 and a second rotating shaft 522 extending outward in the axial direction, wherein the first rotating shaft 521 is rotatably connected to the end of the roller 51 away from the installation opening 512, and the second rotating shaft 522 extends out of the installation opening 512 of the roller 51 and is rotatably connected to the corresponding vertical plate 11. As shown in Figure 16As shown, the end of the roller 51 away from the mounting port 512 is provided with a first shaft sleeve 523, and the first rotating shaft 521 of the rolling shaft 52 is rotatably arranged in the first shaft sleeve 523 and can slide in the first shaft sleeve 523 in the axial direction. The vertical plate 11 opposite to the mounting port 512 of the roller 51 is provided with a second shaft sleeve 524, and the second rotating shaft 522 of the rolling shaft 52 is rotatably arranged in the second shaft sleeve 524 and can slide in the second shaft sleeve 524 in the axial direction. The second rotating shaft 522 of the rolling shaft 52 penetrates through the vertical plate 11 and extends outward by a distance, and the second driving mechanism 62 includes a second motor, and the output shaft of the second motor is connected with the second rotating shaft 522 of the rolling shaft 52, so as to drive the rolling shaft 52 to rotate. In order to realize the axial reciprocating movement of the rolling shaft 52 while the rolling shaft 52 rotates, the slide base 12 capable of moving linearly relative to the frame 10 is further arranged on the frame 10. Specifically, the bottom of the slide base 12 is connected with the frame 10 through the slide rail assembly 13, and the sliding direction of the slide base 12 relative to the frame 10 is parallel to the axial direction of the roller 51. The second motor is arranged on the slide base 12 and can move together with the slide base 12. The third driving mechanism 63 includes a third motor fixed on the frame 10. The third motor is connected with the slide base 12 through a transmission mechanism, so as to drive the slide base 12 to slide. Generally, the transmission mechanism can adopt various transmission structures capable of cooperating with the driving motor to realize linear reciprocating movement, such as a connecting rod 142 mechanism, a crank slider mechanism, etc. In the preferred embodiment, the transmission mechanism includes a cam 141 arranged on the output shaft of the third motor and a connecting rod 142 connected with the cam 141. The first end of the connecting rod 142 is rotatably connected with the position of the cam 141 away from the rotating center of the cam 141, and the second end is rotatably connected with the slide base 12. When the third motor operates, the slide base 12 is driven to reciprocate along the slide rail assembly 13 through the cooperation of the cam 141 and the connecting rod 142.

[0053] In the process that the second motor drives the rolling shaft 52 to rotate, the third motor also operates to drive the slide base 12 and the rolling shaft 52 to move linearly and reciprocally in the axial direction. In this way, the rolling shaft 52 can drive the steel balls in the detection channel 513 of the roller 51 to fully spread out, so as to facilitate the visual detection device 7 to detect the appearance of the steel balls in the detection channel 513.

[0054] Referring to Figures 9-11, the detection hole 513 of the roller 51 has at least a feeding state, a detection state and a discharging state, and the opening direction of the detection hole 513 of the roller 51 in the above-mentioned feeding state, detection state and discharging state is different. The opening direction of the detection hole 513 of the roller 51 in the above-mentioned feeding state is toward the detection channel 41, the opening direction of the detection hole 513 of the roller 51 in the detection state is toward the visual detection device 7, and the opening direction of the detection hole 513 of the roller 51 in the discharging state is toward the discharging rack. In order to realize the timely sorting of qualified steel balls and unqualified steel balls after appearance detection, the detection hole 513 of the roller 51 has a first discharging state and a second discharging state, the opening direction of the detection hole 513 in the first discharging state is different from the opening direction of the detection hole 513 in the second discharging state, and the detection hole 513 is respectively used for rolling out the qualified steel balls and the unqualified steel balls from the detection hole 513. The detection hole 513 of the roller 51 has an inner port 5132 connected with the mounting channel 511 and an outer port 5131 away from the mounting channel 511. In the feeding state, the detection hole 513 of the roller 51 gradually inclines downward from the outer port 5131 to the inner port 5132, so that the steel ball can automatically roll to the inner port 5132 under the action of its own gravity when placed at the outer port 5131 of the detection hole 513, and will not easily fall out of the detection hole 513. In the detection state, the opening direction of the detection hole 513 of the roller 51 is upward, opposite to the visual detection device 7 located above the rack 10, used for obtaining image information of the steel ball during the unfolding process in the detection hole 513, and analyzing the image information of the steel ball to judge whether the appearance of the steel ball has defects. The visual detection device 7 can adopt various detection devices capable of realizing the above-mentioned functions in the prior art, which generally includes a visual sensor, a camera and an image processing system. The visual sensor transmits the slight change of the reflected light on the surface of the ball to the image processing system through capturing, such as the visual detection device 7 disclosed in the Chinese patent application No. CN201610457209.X (application publication No. CN105911064A). In the discharging state, the detection hole 513 of the roller 51 gradually inclines downward from the inner port 5132 to the outer port 5131, so as to facilitate the automatic rolling out of the steel ball in the detection hole 513. The discharging rack includes a first discharging rack 541 and a second discharging rack 542, wherein the first discharging rack 541 is used for receiving the steel ball rolled out from the detection hole 513 of the roller 51 in the first discharging state, and the second discharging rack 542 is used for receiving the steel ball rolled out from the detection hole 513 of the roller 51 in the second discharging state.The first discharge frame 541 and the second discharge frame 542 are arranged in sequence from top to bottom, and the detection channels 513 of the roller 51 in the first discharge state and the second discharge state gradually extend downward from the inner port 5132 to the outer port 5131, wherein the angle between the extension direction of the detection channel 513 of the roller 51 in the second discharge state and the horizontal direction is referred to as the second angle, and the angle between the extension direction of the detection channel 513 of the roller 51 in the first discharge state and the horizontal direction is referred to as the first angle. In order to avoid the interference problem of the roller 51 with the corresponding first discharge frame 541 and the second discharge frame 542 during rotation, the second angle is greater than the first angle. Specifically, the first angle is denoted as a, and the value range of a is 0°<a<15°. The second angle is denoted as β, and the value range of β is 90°<β<105°.

[0055] In combination with Figure 10 and Figure 11 , the ball blocking assembly 53 includes a ball blocking piece 531 which can be driven by the fourth driving mechanism 532 to move between a ball blocking position and a ball releasing position. When the ball blocking piece 531 is in the above-mentioned ball blocking position state, the outer port 5131 of the detection channel 513 of the roller 51 in the first discharge state is blocked by the ball blocking piece 531, and when the ball blocking piece 531 is in the above-mentioned ball releasing position state, the ball blocking piece 531 is away from the outer port 5131 of the detection channel 513 of the roller 51 in the first discharge state, allowing the steel balls in the detection channel 513 of the roller 51 to roll out. The fourth driving mechanism 532 includes a first pneumatic push rod, and the ball blocking piece 531 is connected to the end of the telescopic rod of the first pneumatic push rod. When the first pneumatic push rod telescopes, the ball blocking piece 531 can extend to the outer port 5131 of the detection channel 513 of the roller 51 in the first discharge state and retract away from the outer port 5131 of the detection channel 513. The ball blocking piece 531 can be a rod body or a plate body structure. The steel ball sorting device further includes a controller, wherein the first driving mechanism 61, the fourth driving mechanism 532 and the visual detection device 7 are electrically connected to the controller. The controller can control the first driving mechanism 61 and the fourth driving mechanism 532 to act according to the obtained steel ball detection information of the visual detection device 7, so that the qualified steel balls and the unqualified steel balls which have completed detection are respectively rolled out of the detection channel 513 when the roller 51 rotates to the corresponding first discharge state position and the second discharge state position. Specifically, when the visual detection device 7 detects that the appearance of the steel ball in the corresponding detection channel 513 has no defects, it is determined that the steel ball is qualified. After the roller 51 is further rotated under the driving of the first driving mechanism 61, the detection channel 513 where the qualified steel ball is placed is in the first discharge state, at the same time, the outer port 5131 of the detection channel 513 of the ball blocking assembly 53 is opened by the ball blocking piece 531, and the steel ball can automatically roll out and fall onto the first discharge frame 541, as shown in Figure 10is detected by the visual inspection device 7, the steel ball is determined to be unqualified. After the drum 51 is further rotated by the first driving mechanism 61, the detection hole 513 where the unqualified steel ball is placed is in the first discharging state, but the ball blocking member 531 of the ball blocking assembly 53 is in the ball blocking position, that is, the outer port 5131 of the detection hole 513 is blocked, and the steel ball cannot roll out. When the drum 51 is further rotated, the detection hole 513 where the unqualified steel ball is placed is in the second discharging state, at which time, the outer port 5131 of the detection hole 513 is away from the ball blocking member 531, and the steel ball can automatically roll out and fall onto the second discharging rack 542, as shown in Figure 9 and Figure 11 .

[0056] After the appearance of the steel ball is detected, the qualified steel ball and the unqualified steel ball can be sorted in place (that is, in the detection area) through the rotation of the drum 51, which further reduces the size of the appearance detection equipment of the steel ball and saves the occupied space. In particular, the first discharging rack 541 and the second discharging rack 542 are arranged in layers, which can be adapted to the detection holes 513 at different inclination angles, and further utilizes the space above and below to reduce the floor area.

[0057] Generally, one detection hole 513 can be arranged on the drum 51, so that after each steel ball sequentially completes the feeding, detection and discharging processes, the feeding process of the next steel ball is performed. However, this way has relatively low detection efficiency. In order to effectively improve the detection efficiency of the steel ball, in the preferred embodiment, four detection holes 513 are arranged along the circumferential direction of the drum 51, and each detection hole 513 sequentially passes through the feeding state, the detection state, the first discharging state and the second discharging state with the rotation of the drum 51. Further, the four detection holes 513 arranged along the circumferential direction of the drum 51 are recorded as one detection hole group, the detection hole groups are sequentially arranged along the axial direction of the drum 51, and the extension directions of the two detection holes 513 opposite in the axial direction of the drum 51 in any adjacent two detection hole groups are consistent, and the ball blocking assembly 53 has at least two corresponding to the number of the detection hole groups. As shown in Figure 16 Corresponding to the eight to-be-detected channels 41, there are eight detection hole groups, and the ball blocking assembly 53 also has eight groups corresponding thereto.

[0058] The first discharging rack 541 and the second discharging rack 542 of the embodiment are gradually inclined downward from the end close to the drum 51 to the end away from the drum 51, so that the steel ball can continue to roll forward under the action of its own gravity after falling into the corresponding discharging rack from the detection hole 513 of the drum 51.

[0059] Referring to Figure 2The steel ball sorting equipment of the embodiment further comprises a return rack 18 and a cleaning tank 17. The first end of the return rack 18 is connected to the second discharge rack 542, and is used to receive the unqualified steel balls from the second discharge rack 542. The second end of the return rack 18 extends to the position of the cleaning tank 17. The return rack 18 is also inclined as a whole, so that the steel balls can roll along the return rack 18 under the action of gravity and fall into the cleaning tank 17. The unqualified steel balls can be cleaned in the cleaning tank 17, and then can be put into the ball storage hopper 20 for a new round of detection and sorting.

[0060] Referring to Figures 12-14 The steel ball feeding mechanism 42 is arranged at the end of the detection channel 41, between the roller 51 of the unfolding device 5 and the feeding rack 40, and can be installed as a module assembly on the two opposite vertical plates 11 of the rack 10. The steel ball feeding mechanism 42 is used to separate the steel balls a in the detection channel 41 and move them to the detection hole 513 of the roller 51 in the feeding state. The steel ball feeding mechanism 42 comprises a fixed platform 421, a lifting platform 422, and a lifting driving mechanism 423. The lifting driving mechanism 423 comprises a lifting cylinder fixed on the second bracket 162, which is a horizontal bracket arranged between the two vertical plates 11. The fixed platform 421 is connected below the horizontal bracket by two vertically extending connecting rods. The lifting platform 422 is also arranged below the horizontal bracket, between the fixed platform 421 and the end of the detection channel 41, and is connected to the end of the extension rod of the lifting cylinder. The lifting platform 422 further has upwardly extending guide rods on the left and right sides of the top, and the horizontal bracket is correspondingly provided with guide sleeves matching the guide rods. The fixed platform 421 is provided with a first rolling groove 4211 on the top, which gradually inclines downward along the forward direction of the steel balls. When the detection hole 513 of the roller 51 is in the feeding state, the end port of the first rolling groove 4211 is connected to the outer port 5131 of the detection hole 513, so that the steel balls moved to the first rolling groove 4211 of the fixed platform 421 can automatically roll into the detection hole 513 of the roller 51.

[0061] The lifting platform 422 is movable between the first position and the second position under the driving of the lifting cylinder. The top of the lifting platform 422 is provided with a second rolling groove 4221 which is gradually inclined downward along the forward direction of the steel balls. When the lifting platform 422 is in the first position, the second rolling groove 4221 of the lifting platform 422 is lower than the first rolling groove 4211 of the fixed platform 421 and is connected with or lower than the end port of the inspection channel 41, so that the steel balls in the inspection channel 41 can roll and stay in the second rolling groove 4221 of the lifting platform 422. The extension size of the second rolling groove 4221 of the lifting platform 422 is greater than the outer diameter size of one steel ball and less than the sum of the outer diameter sizes of two steel balls, so that only one steel ball is allowed to enter the second rolling groove 4221 of the lifting platform 422. When the lifting platform 422 is in the second position, the lifting platform 422 moves upward until the second rolling groove 4221 of the lifting platform 422 is higher than or connected with the first rolling groove 4211 of the fixed platform 421, so that the steel ball staying in the second rolling groove 4221 rolls to the first rolling groove 4211 of the fixed platform 421. Meanwhile, the second rolling groove 4221 of the lifting platform 422 is also higher than the end position of the inspection channel 41 of the feeding rack 40, so as to block the subsequent steel balls in the inspection channel 41 from entering the second rolling groove 4221.

[0062] Referring to Figure 17 and Figure 18 , the qualified steel balls which are sorted by the steel ball sorting and screening structure are moved forward by the first discharging rack 541 to the counting and packaging device in the counting and packaging area for automatic counting and packaging. The steel ball sorting equipment comprises a conveying rack, a first sensor 831, a second sensor 832, a first material blocking assembly 85a, a second material blocking assembly 85b and a rotating disc assembly 8.

[0063] The rotating disc assembly 8 comprises a rotating disc 81, a rotating disc driving mechanism 82 for driving the rotating disc 81 to rotate and collection boxes 811 which are sequentially arranged on the rotating disc 81 along the circumferential direction of the rotating disc 81. The rotating disc 81 is horizontally arranged and is rotatably arranged on the workbench 15 along a vertical rotating shaft. The rotating disc driving mechanism 82 comprises a rotating disc driving motor which is arranged at the bottom of the workbench 15. The output shaft of the rotating disc driving motor extends upward and is connected with the middle part of the rotating disc 81 in a transmission mode, so as to drive the rotating disc 81 to rotate. Each collection box 811 on the rotating disc 81 is a fan-shaped box or a trapezoidal box with a large size of the outer end part and a small size of the inner end part, so that the space on the top of the rotating disc can be used as much as possible to place the collection boxes 811. When the steel balls are collected, the collection boxes 811 can be provided with open packaging bags to receive the steel balls. After the counting and packaging are completed, the new packaging bags can be replaced to receive the steel balls.

[0064] The one end of the conveying frame is connected with the first discharging frame 541 for receiving the detected steel balls, and the other end extends to the position of the rotating disc 81 for conveying the steel balls into the collecting box 811. The conveying frame of the embodiment comprises a first conveying frame 841 and a second conveying frame 842 which are connected in sequence along the conveying direction of the steel balls and have a height difference at the connection position, and the first conveying frame 841 and the second conveying frame 842 are both gradually inclined downward along the forward direction of the steel balls, and the steel balls are automatically conveyed forward under the gravity. The height of the inlet end of the second conveying frame 842 is lower than the height of the end of the first conveying frame 841, and the second conveying frame 842 is provided with a spraying assembly 843 for spraying rust-proof oil on the passing steel balls, and the spraying assembly 843 can be arranged at the inlet end of the second conveying frame 842.

[0065] Considering that other sizes of steel balls, especially small size steel balls, can be mixed in the ball storage hopper 20, in order to automatically separate the small size steel balls, the bottom of the first conveying frame 841 is further provided with a ball dropping hole 8410 which is a strip-shaped hole extending along the conveying frame, and the width of the ball dropping hole 8410 is smaller than the outer diameter of the steel balls to be detected, but larger than the outer diameter of other small size steel balls, so that the steel balls smaller than the set diameter can be automatically separated during the conveying process.

[0066] The second conveying frame 842 is provided with a first sensor 831 for detecting the number of passing steel balls and a second sensor 832 for detecting whether there is a steel ball at the current position of the second conveying frame 842. Along the forward direction of the steel balls on the second conveying frame 842, the first sensor 831 is located in front of the second sensor 832. The first sensor 831 and the second sensor 832 can both be infrared sensors. The first sensor 831 and the rotating disc driving mechanism 82 are both electrically connected with the controller, and the controller controls the starting and stopping of the rotating disc driving mechanism 82 according to whether the number signal of the steel balls conveyed by the first sensor 831 meets the packaging requirement. For example, when the first sensor 831 detects that the number of conveyed steel balls reaches the set number, the rotating disc driving mechanism 82 is started to drive the rotating disc 81 to rotate by a set angle and then stop, so that the other empty collecting box 811 adjacent to the rotating disc 81 moves to the position corresponding to the end of the second conveying frame 842, and then the first sensor 831 re-counts.

[0067] In addition, considering that it takes time to switch the position of the collection box 811 by rotating the rotating disc 81, after the counting of the set number of steel balls is completed, the other steel balls passing upstream need to be blocked, therefore, the first blocking assembly 85a and the second blocking assembly 85b are further arranged on the conveying frame, specifically, the first blocking assembly 85a and the second blocking assembly 85b are both arranged on the second conveying frame 842. In the direction of the steel balls moving on the second conveying frame 842, the first blocking assembly 85a is located in front of the second blocking assembly 85b, the first sensor 831 is located in front of the first blocking assembly 85a, and the second sensor 832 is located behind the second blocking assembly 85b. The distance between the first blocking assembly 85a and the second blocking assembly 85b is selected according to the size of the steel balls, that is, through the cooperation of the blocking and releasing actions of the first blocking assembly 85a and the second blocking assembly 85b, the area between the first blocking assembly 85a and the second blocking assembly 85b on the second conveying frame 842 can retain a set number of steel balls. The first blocking assembly 85a and the second blocking assembly 85b have the same structure and both include a blocking rod 851 and a blocking drive mechanism 852. The side of the second conveying frame 842 has a third support extending upward, and the blocking drive mechanism 852 is a second pneumatic push rod arranged on the third support. The telescopic rod of the second pneumatic push rod can extend downward and retract upward. The blocking rod 851 is connected to the bottom of the telescopic rod of the second pneumatic push rod and is driven by the second pneumatic push rod to reciprocate between the blocking position for blocking the steel balls moving on the conveying frame and the releasing position for releasing the blocking of the steel balls. The blocking drive mechanism 852 of the first blocking assembly 85a and the second blocking assembly 85b and the second sensor 832 are electrically connected to the controller, and the controller controls the blocking drive mechanism 852 of the two blocking assemblies to start and stop according to the signal of whether there is a steel ball in the current position transmitted by the second sensor 832.The specific action process is as follows: at the beginning, the blocking rod 851 of the first blocking assembly 85a is lowered to block the balls, and the blocking rod 851 of the second blocking assembly 85b is raised to release the balls. Then the steel balls are sequentially filled from the position of the blocking rod 851 of the first blocking assembly 85a to the rear. When the sensing area of the second sensor 832 is filled, the second sensor 832 identifies it. At this time, the section between the first blocking assembly 85a and the second blocking assembly 85b is also in a full ball state, and the number of steel balls is a set number (the number of steel balls is a common multiple of the number of collection boxes, for example, if the number of steel balls in a box is 300, the number of steel balls between the two blocking assemblies is 25). Then, the blocking rod 851 of the first blocking assembly 85a is raised to release the balls, and the blocking rod 851 of the second blocking assembly 85b is lowered to block the balls. At the same time, the timing starts. After a set time (which can ensure that all the steel balls between the two blocking assemblies roll out), the blocking rod 851 of the first blocking assembly 85a is lowered again to block the balls, and the blocking rod 851 of the second blocking assembly 85b is raised again to release the balls. This process is repeated until the number of steel balls required by the collection box 811 is reached. Then the controller controls the rotation of the rotating disc driving mechanism 82 to drive the rotating disc 81 to rotate one grid, that is, to move the adjacent next collection box 811 to the set position, and then the counting is reset to zero. In some cases, due to abnormalities, sometimes the number is insufficient, such as 24, which will be supplemented. The rotating disc will not release the balls during rotation.

[0068] The working process of the full-automatic steel ball sorting equipment of the embodiment is as follows:

[0069] The steel balls to be sorted and screened are placed in the ball storage hopper 20. Since the ball storage hopper 20 is inclined, the steel balls will automatically enter the cleaning tank 30. The spray assembly on the cleaning tank 30 cleans the steel balls. The cleaned steel balls are automatically rolled out and moved to the feeding rack 40 connected to the cleaning tank 30. The feeding rack 40 is also inclined. The steel balls in the inspection channels 41 on the feeding rack 40 are automatically rolled forward to the steel ball feeding mechanism 42. The steel ball feeding mechanism 42 can separate the steel ball at the end of the inspection channel 41 and move it to the detection hole 513 of the unfolding device 5. Specifically, the lifting platform 422 can move between the first position and the second position under the driving of the lifting cylinder. When the lifting platform 422 is in the first position, the second rolling groove 4221 of the lifting platform 422 is lower than the first rolling groove 4211 of the fixed platform 421 and is connected to or lower than the end port of the inspection channel 41. Thus, the last steel ball in the inspection channel 41 can be rolled and stopped in the second rolling groove 4221 of the lifting platform 422. When feeding is needed, the lifting platform 422 moves to the second position. At this time, the second rolling groove 4221 of the lifting platform 422 is higher than or connected to the first rolling groove 4211 of the fixed platform 421. The steel ball in the second rolling groove 4221 can be automatically rolled to the first rolling groove 4211 of the fixed platform 421. At the same time, the second rolling groove 4221 of the lifting platform 422 is higher than the end position of the inspection channel 41 of the feeding rack 40 to block the subsequent steel ball in the inspection channel 41 from entering the second rolling groove 4221. The roller 51 of the unfolding device 5 has four detection holes 513 arranged at intervals in the circumferential direction. The four detection holes 513 have feeding state, detection state, first discharging state and second discharging state in turn with the change of the rotating position of the roller 51. Referring to Figures 9-11The opening direction of the detection holes 513 of the roller 51 in the feeding state, the detection state, the first discharging state and the second discharging state is different. When one of the detection holes 513 is in the feeding state, the other detection holes 513 are in the detection state, the first discharging state and the second discharging state in sequence. The opening direction of the detection holes 513 of the roller 51 in the feeding state is toward the detection channel 41 (i.e., toward the fixed platform 421 of the steel ball feeding mechanism 42), and the steel balls in the first rolling groove 4211 of the fixed platform 421 automatically roll into the detection holes 513. The opening direction of the detection holes 513 of the roller 51 in the detection state is upward, i.e., toward the visual detection device 7. The opening direction of the detection holes 513 of the roller 51 in the first discharging state is toward the first discharging rack 541, and the qualified steel balls in the detection holes 513 automatically roll out and fall on the first discharging rack 541. The opening direction of the detection holes 513 of the roller 51 in the second discharging state is toward the second discharging rack 542, and the unqualified steel balls in the detection holes 513 automatically roll out and fall on the second discharging rack 542.

[0070] When the steel balls in the detection holes 513 rotate to the detection state along with the roller 51, the second motor drives the rolling shaft 52 to rotate, and the third motor simultaneously drives the sliding seat 12 and the rolling shaft 52 to move linearly along the axial direction, so that the rolling shaft 52 can drive the steel balls in the detection holes 513 of the roller 51 to fully spread out, thereby facilitating the visual detection device 7 to detect the appearance of the steel balls in the detection holes 513.

[0071] When the visual detection device 7 detects that the appearance of the steel balls in the corresponding detection holes 513 has no defects, it is determined that the steel balls are qualified. After the roller 51 is further rotated under the drive of the first driving mechanism 61, the detection holes 513 in which the qualified steel balls are placed are in the first discharging state, and the outer port 5131 of the detection holes 513 is opened by the ball blocking member 531 of the ball blocking assembly 53, so that the steel balls can automatically roll out and fall on the first discharging rack 541, as shown in FIG. 8. Figure 10 When the visual detection device 7 detects that the appearance of the steel balls in the corresponding detection holes 513 has defects, it is determined that the steel balls are unqualified. After the roller 51 is further rotated under the drive of the first driving mechanism 61, the detection holes 513 in which the unqualified steel balls are placed are in the first discharging state, but the ball blocking member 531 of the ball blocking assembly 53 is in the ball blocking position, i.e., the outer port 5131 of the detection holes 513 is blocked, so that the steel balls cannot roll out. When the roller 51 is further rotated, the detection holes 513 in which the unqualified steel balls are placed are in the second discharging state, and the outer port 5131 of the detection holes 513 is away from the ball blocking member 531, so that the steel balls can automatically roll out and fall on the second discharging rack 542.

[0072] The unqualified steel balls falling on the second discharge frame 542 roll to the return frame 18, and are sent to the corresponding cleaning tank 17 by the return frame 18, cleaned in the cleaning tank 17, and then put into the ball storage hopper 20 for a new round of detection and sorting.

[0073] The qualified steel balls falling on the first discharge frame 541 roll to the counting and packaging area and are automatically counted and packaged by the counting and packaging unit. The first conveying frame 841 of the counting and packaging unit is connected with the first discharge frame 541, and during the conveying of the steel balls on the first conveying frame 841, the steel balls smaller than the set diameter fall through the ball falling port 8410 to realize automatic separation. The second conveying frame 842 of the counting and packaging unit is connected with the first conveying frame 841, and is provided with an oil spraying assembly 843 for spraying rust-proof oil on the passing steel balls. The second conveying frame 842 is provided with a first sensor 831, a second sensor 832, a first material blocking assembly 85a and a second material blocking assembly 85b. Initially, the material blocking rod 851 of the first material blocking assembly 85a is lowered to block the balls, and the material blocking rod 851 of the second material blocking assembly 85b is raised to release the balls, so that the steel balls are sequentially filled from the position of the material blocking rod 851 of the first material blocking assembly 85a. When the filling reaches the position of the sensing area of the second sensor 832, the second sensor 832 identifies it. At this time, the section between the first material blocking assembly 85a and the second material blocking assembly 85b is also full of balls, and the number of balls is a set number (the number of balls is a common multiple of the number of a collection box, for example, the number of balls in a box is 300, and the number of balls between the two material blocking assemblies is 25). Then, the material blocking rod 851 of the first material blocking assembly 85a is raised to release the balls, and the material blocking rod 851 of the second material blocking assembly 85b is lowered to block the balls, and the timing starts. After a set time (which can ensure that all the balls between the two material blocking assemblies roll out), the material blocking rod 851 of the first material blocking assembly 85a is lowered again to block the balls, and the material blocking rod 851 of the second material blocking assembly 85b is raised again to release the balls. This process is repeated until the number of balls in a collection box 811 reaches the required number, and then the controller controls the rotation of the rotation disc 81 driven by the rotation disc driving mechanism 82 to rotate one position, that is, the next adjacent collection box 811 moves to the set position, and then the counting is reset.

Claims

1. A cleaning and feeding device for a steel ball sorting apparatus, characterized in that The utility model relates to a steel ball cleaning and detecting device, which comprises: a ball storage hopper (20) for placing steel balls to be detected, the side of the ball storage hopper (20) being provided with a discharge port (21) for the steel balls to roll out; a cleaning box (30) provided with a first opening (31) capable of connecting with the discharge port (21) on the side wall adjacent to the ball storage hopper (20) and a second opening (32) for the steel balls in the cleaning box (30) to roll out on the side wall away from the ball storage hopper (20); a spraying assembly comprising a spraying arm (33) provided above the cleaning box (30), the spraying arm (33) being provided with spraying holes (331).

2. The cleaning and feeding device for a steel ball sorting apparatus according to claim 1, characterized by: The second opening (32) is a strip-shaped opening arranged along the width direction of the cleaning box (30), the spraying arm (33) extends along the width direction of the cleaning box and is arranged adjacent to the second opening (32), and the spraying holes (331) are arranged along the extension direction of the spraying arm (33).

3. The cleaning and feeding device for a steel ball sorting apparatus according to claim 2, characterized in that: The spraying arm (33) is provided with a water storage chamber (330) with a top opening, and each spraying hole (331) is formed in the bottom wall of the water storage chamber (330), and the water storage chamber (330) is further provided with a water supply connector (332) for connecting with an external water pipe at the top opening.

4. The cleaning and feeding apparatus for a steel ball sorting device according to claim 1, wherein: The cleaning box (30) is provided with a blocking plate (22) extending upward from the bottom wall of the cleaning box (30) at the first opening (31).

5. The cleaning and feeding apparatus for a steel ball sorting device according to claim 1, wherein: The bottom wall of the cleaning box (30) is gradually inclined downward from the first opening (31) to the second opening (32), and the bottom of the ball storage hopper (20) is also inclined, and the discharge port (21) is located at the lowest position of the bottom wall of the ball storage hopper (20).

6. The cleaning and feeding apparatus for a steel ball sorting device according to claim 1, wherein: The second opening (32) of the cleaning box (30) is connected with a feeding frame (40), the feeding frame (40) is provided with a detection channel (41) for receiving the steel balls rolled out from the second opening (32) of the cleaning box, and the detection channel (41) is gradually inclined downward along the forward direction of the steel balls.

7. The cleaning and feeding device for a steel ball sorting apparatus according to claim 6, characterized in that: The detection channel (41) comprises at least two channels arranged side by side in the transverse direction.

8. The cleaning and feeding device for a steel ball sorting apparatus according to claim 6, wherein: The end of the detection channel (41) is further provided with a steel ball feeding mechanism (42) for separating the single steel balls in the detection channel (41).

9. The cleaning and feeding device for a steel ball sorting apparatus according to claim 8, characterized in that: The steel ball feeding mechanism (42) comprises: a fixed platform (421) provided with a first rolling groove (4211) on the top; a lifting platform (422) located between the fixed platform (421) and the end of the detection channel (41) and capable of moving between a first position and a second position under the driving of a lifting driving mechanism (423), the lifting platform (422) being provided with a second rolling groove (4221) on the top, the second rolling groove (4221) being gradually inclined downward along the forward direction of the steel balls; and a lifting driving mechanism (423) for driving the lifting platform (422) to move between the first position and the second position. In the first position state of the lifting platform (422), the second rolling groove (4221) of the lifting platform (422) is lower than the first rolling groove (4211) of the fixed platform (421) and is connected with or lower than the end port of the inspection channel (41), so that the steel balls in the inspection channel (41) can roll and stay in the second rolling groove (4221) of the lifting platform (422); In the second position state of the lifting platform (422), the second rolling groove (4221) of the lifting platform (422) is higher than or connected with the first rolling groove (4211) of the fixed platform (421), so that the steel balls staying in the second rolling groove (4221) can roll to the first rolling groove (4211) of the fixed platform (421).

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